./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_remove_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 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_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_remove_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b594cdd667b896d6ce097f6fd96950290806f015d929f3b2b06ffea35d861f89 --- 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-b5237d8 [2022-11-22 00:14:26,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:14:26,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:14:26,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:14:26,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:14:26,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:14:26,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:14:26,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:14:26,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:14:26,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:14:26,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:14:26,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:14:26,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:14:26,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:14:26,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:14:26,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:14:26,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:14:26,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:14:26,485 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:14:26,487 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:14:26,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:14:26,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:14:26,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:14:26,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:14:26,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:14:26,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:14:26,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:14:26,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:14:26,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:14:26,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:14:26,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:14:26,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:14:26,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:14:26,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:14:26,520 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:14:26,520 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:14:26,521 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:14:26,521 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:14:26,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:14:26,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:14:26,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:14:26,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 00:14:26,571 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:14:26,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:14:26,572 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:14:26,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:14:26,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:14:26,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:14:26,573 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:14:26,573 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:14:26,573 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:14:26,574 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:14:26,575 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:14:26,575 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:14:26,575 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:14:26,575 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:14:26,576 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:14:26,576 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:14:26,576 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:14:26,576 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:14:26,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 00:14:26,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 00:14:26,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:14:26,578 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:14:26,578 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:14:26,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:14:26,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:14:26,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:14:26,579 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 00:14:26,579 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 00:14:26,579 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 00:14:26,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:14:26,580 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 00:14:26,580 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:14:26,580 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:14:26,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:14:26,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:14:26,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:14:26,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:14:26,581 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:14:26,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:14:26,582 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:14:26,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:14:26,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:14:26,583 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_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b594cdd667b896d6ce097f6fd96950290806f015d929f3b2b06ffea35d861f89 [2022-11-22 00:14:26,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:14:26,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:14:26,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:14:26,912 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:14:26,912 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:14:26,913 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/list-simple/dll2n_remove_all.i [2022-11-22 00:14:30,120 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:14:30,363 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:14:30,364 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/sv-benchmarks/c/list-simple/dll2n_remove_all.i [2022-11-22 00:14:30,378 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/data/4da2d36ab/22b0cf4e810b4b35a17bde1ad99ed191/FLAGc40632d63 [2022-11-22 00:14:30,394 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/data/4da2d36ab/22b0cf4e810b4b35a17bde1ad99ed191 [2022-11-22 00:14:30,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:14:30,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:14:30,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:14:30,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:14:30,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:14:30,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b128f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30, skipping insertion in model container [2022-11-22 00:14:30,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:14:30,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:14:30,776 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_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/sv-benchmarks/c/list-simple/dll2n_remove_all.i[24090,24103] [2022-11-22 00:14:30,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:14:30,798 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:14:30,850 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_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/sv-benchmarks/c/list-simple/dll2n_remove_all.i[24090,24103] [2022-11-22 00:14:30,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:14:30,893 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:14:30,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30 WrapperNode [2022-11-22 00:14:30,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:14:30,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:14:30,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:14:30,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:14:30,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,943 INFO L138 Inliner]: procedures = 126, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2022-11-22 00:14:30,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:14:30,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:14:30,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:14:30,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:14:30,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,977 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:30,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:14:30,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:14:30,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:14:30,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:14:30,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (1/1) ... [2022-11-22 00:14:31,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:14:31,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:14:31,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:14:31,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:14:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-22 00:14:31,080 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-22 00:14:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:14:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:14:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:14:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:14:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 00:14:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 00:14:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:14:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:14:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:14:31,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:14:31,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:14:31,281 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:14:31,284 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:14:31,353 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-22 00:14:31,726 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:14:31,801 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:14:31,801 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 00:14:31,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:14:31 BoogieIcfgContainer [2022-11-22 00:14:31,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:14:31,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:14:31,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:14:31,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:14:31,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:14:30" (1/3) ... [2022-11-22 00:14:31,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12170ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:14:31, skipping insertion in model container [2022-11-22 00:14:31,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:14:30" (2/3) ... [2022-11-22 00:14:31,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12170ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:14:31, skipping insertion in model container [2022-11-22 00:14:31,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:14:31" (3/3) ... [2022-11-22 00:14:31,824 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_remove_all.i [2022-11-22 00:14:31,847 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:14:31,847 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2022-11-22 00:14:31,926 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:14:31,937 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@500ad6f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:14:31,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-22 00:14:31,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 25 states have (on average 2.24) internal successors, (56), 50 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:31,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:14:31,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:14:31,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:14:31,954 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:14:31,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:14:31,964 INFO L85 PathProgramCache]: Analyzing trace with hash 4276196, now seen corresponding path program 1 times [2022-11-22 00:14:31,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:14:31,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675965231] [2022-11-22 00:14:31,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:31,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:14:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:32,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:32,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:14:32,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675965231] [2022-11-22 00:14:32,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675965231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:14:32,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:14:32,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:14:32,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455314177] [2022-11-22 00:14:32,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:14:32,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:14:32,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:14:32,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:14:32,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:14:32,358 INFO L87 Difference]: Start difference. First operand has 52 states, 25 states have (on average 2.24) internal successors, (56), 50 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:32,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:14:32,536 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2022-11-22 00:14:32,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:14:32,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 00:14:32,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:14:32,549 INFO L225 Difference]: With dead ends: 76 [2022-11-22 00:14:32,550 INFO L226 Difference]: Without dead ends: 72 [2022-11-22 00:14:32,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:14:32,558 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 40 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:14:32,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 67 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:14:32,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-22 00:14:32,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 45. [2022-11-22 00:14:32,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 44 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:32,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2022-11-22 00:14:32,606 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 4 [2022-11-22 00:14:32,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:14:32,608 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2022-11-22 00:14:32,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2022-11-22 00:14:32,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:14:32,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:14:32,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:14:32,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:14:32,611 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:14:32,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:14:32,612 INFO L85 PathProgramCache]: Analyzing trace with hash 4276197, now seen corresponding path program 1 times [2022-11-22 00:14:32,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:14:32,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679049837] [2022-11-22 00:14:32,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:32,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:14:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:32,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:14:32,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679049837] [2022-11-22 00:14:32,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679049837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:14:32,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:14:32,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:14:32,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650323129] [2022-11-22 00:14:32,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:14:32,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:14:32,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:14:32,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:14:32,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:14:32,786 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:32,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:14:32,875 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2022-11-22 00:14:32,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:14:32,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 00:14:32,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:14:32,878 INFO L225 Difference]: With dead ends: 74 [2022-11-22 00:14:32,878 INFO L226 Difference]: Without dead ends: 74 [2022-11-22 00:14:32,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:14:32,881 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 42 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:14:32,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 71 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:14:32,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-22 00:14:32,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 42. [2022-11-22 00:14:32,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 23 states have (on average 1.9565217391304348) internal successors, (45), 41 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:32,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-11-22 00:14:32,888 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 4 [2022-11-22 00:14:32,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:14:32,888 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-11-22 00:14:32,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-11-22 00:14:32,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:14:32,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:14:32,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:14:32,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:14:32,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:14:32,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:14:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash 4376208, now seen corresponding path program 1 times [2022-11-22 00:14:32,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:14:32,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524595717] [2022-11-22 00:14:32,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:32,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:14:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:33,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:33,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:14:33,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524595717] [2022-11-22 00:14:33,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524595717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:14:33,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:14:33,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:14:33,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212854636] [2022-11-22 00:14:33,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:14:33,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:14:33,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:14:33,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:14:33,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:14:33,021 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:33,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:14:33,046 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2022-11-22 00:14:33,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:14:33,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 00:14:33,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:14:33,048 INFO L225 Difference]: With dead ends: 52 [2022-11-22 00:14:33,048 INFO L226 Difference]: Without dead ends: 52 [2022-11-22 00:14:33,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:14:33,050 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 76 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 [2022-11-22 00:14:33,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 76 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:14:33,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-22 00:14:33,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 43. [2022-11-22 00:14:33,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 24 states have (on average 1.9166666666666667) internal successors, (46), 42 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:33,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2022-11-22 00:14:33,057 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 4 [2022-11-22 00:14:33,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:14:33,057 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2022-11-22 00:14:33,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:33,058 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2022-11-22 00:14:33,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 00:14:33,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:14:33,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:14:33,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:14:33,059 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:14:33,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:14:33,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2081771880, now seen corresponding path program 1 times [2022-11-22 00:14:33,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:14:33,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42801156] [2022-11-22 00:14:33,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:33,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:14:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:33,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:33,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:14:33,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42801156] [2022-11-22 00:14:33,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42801156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:14:33,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:14:33,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:14:33,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744979278] [2022-11-22 00:14:33,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:14:33,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:14:33,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:14:33,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:14:33,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:14:33,126 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:33,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:14:33,159 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2022-11-22 00:14:33,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:14:33,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-22 00:14:33,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:14:33,161 INFO L225 Difference]: With dead ends: 49 [2022-11-22 00:14:33,161 INFO L226 Difference]: Without dead ends: 49 [2022-11-22 00:14:33,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:14:33,163 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 1 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:14:33,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 71 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:14:33,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-22 00:14:33,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2022-11-22 00:14:33,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 29 states have (on average 1.7586206896551724) internal successors, (51), 47 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:33,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2022-11-22 00:14:33,169 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 8 [2022-11-22 00:14:33,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:14:33,170 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2022-11-22 00:14:33,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:33,170 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2022-11-22 00:14:33,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 00:14:33,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:14:33,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:14:33,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:14:33,172 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:14:33,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:14:33,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1256794505, now seen corresponding path program 1 times [2022-11-22 00:14:33,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:14:33,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092089944] [2022-11-22 00:14:33,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:33,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:14:33,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:14:33,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:14:33,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092089944] [2022-11-22 00:14:33,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092089944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:14:33,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:14:33,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:14:33,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558715303] [2022-11-22 00:14:33,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:14:33,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:14:33,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:14:33,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:14:33,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:14:33,254 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:14:33,287 INFO L93 Difference]: Finished difference Result 71 states and 75 transitions. [2022-11-22 00:14:33,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:14:33,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 00:14:33,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:14:33,292 INFO L225 Difference]: With dead ends: 71 [2022-11-22 00:14:33,292 INFO L226 Difference]: Without dead ends: 71 [2022-11-22 00:14:33,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:14:33,294 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 84 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:14:33,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 78 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:14:33,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-22 00:14:33,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 49. [2022-11-22 00:14:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 48 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:33,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2022-11-22 00:14:33,311 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 11 [2022-11-22 00:14:33,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:14:33,312 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2022-11-22 00:14:33,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:33,312 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2022-11-22 00:14:33,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 00:14:33,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:14:33,313 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:14:33,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:14:33,314 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:14:33,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:14:33,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1256796369, now seen corresponding path program 1 times [2022-11-22 00:14:33,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:14:33,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212601092] [2022-11-22 00:14:33,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:33,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:14:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:33,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:33,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:14:33,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212601092] [2022-11-22 00:14:33,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212601092] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:14:33,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190783840] [2022-11-22 00:14:33,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:33,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:14:33,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:14:33,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:14:33,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:14:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:33,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 00:14:33,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:14:33,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:33,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:14:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:33,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190783840] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:14:33,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1645435620] [2022-11-22 00:14:33,843 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-22 00:14:33,843 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:14:33,848 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:14:33,856 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:14:33,857 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:14:33,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:33,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:33,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:14:34,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:14:34,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:14:34,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:14:34,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:14:34,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:14:34,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:14:34,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:14:34,384 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 22 [2022-11-22 00:14:34,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:14:34,440 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 22 [2022-11-22 00:14:34,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-22 00:14:34,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:14:34,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:14:34,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:14:34,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:14:34,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:14:34,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:34,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:14:35,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,019 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,021 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,045 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-22 00:14:35,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 389 treesize of output 388 [2022-11-22 00:14:35,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,077 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,097 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-22 00:14:35,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 389 treesize of output 388 [2022-11-22 00:14:35,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,145 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 00:14:35,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 395 treesize of output 376 [2022-11-22 00:14:35,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-22 00:14:35,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:14:35,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:14:35,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:14:35,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:14:35,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:14:35,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:14:35,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,756 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,757 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,765 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 00:14:35,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 395 treesize of output 376 [2022-11-22 00:14:35,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,812 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-22 00:14:35,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 389 treesize of output 388 [2022-11-22 00:14:35,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:35,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,865 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:35,881 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-22 00:14:35,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 389 treesize of output 388 [2022-11-22 00:14:36,296 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-22 00:14:36,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 313 treesize of output 320 [2022-11-22 00:14:36,678 INFO L321 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2022-11-22 00:14:36,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 396 treesize of output 387 [2022-11-22 00:14:36,726 INFO L321 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2022-11-22 00:14:36,727 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 4 case distinctions, treesize of input 392 treesize of output 389 [2022-11-22 00:14:36,773 INFO L321 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2022-11-22 00:14:36,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 396 treesize of output 387 [2022-11-22 00:14:36,856 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:14:40,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1645435620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:14:40,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:14:40,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3, 3] total 10 [2022-11-22 00:14:40,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837606984] [2022-11-22 00:14:40,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:14:40,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 00:14:40,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:14:40,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 00:14:40,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-22 00:14:40,491 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:41,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:14:41,749 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2022-11-22 00:14:41,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 00:14:41,749 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 00:14:41,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:14:41,750 INFO L225 Difference]: With dead ends: 60 [2022-11-22 00:14:41,750 INFO L226 Difference]: Without dead ends: 60 [2022-11-22 00:14:41,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-22 00:14:41,751 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:14:41,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 70 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 00:14:41,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-22 00:14:41,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2022-11-22 00:14:41,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.6216216216216217) internal successors, (60), 55 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:41,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2022-11-22 00:14:41,756 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 11 [2022-11-22 00:14:41,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:14:41,757 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2022-11-22 00:14:41,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:41,757 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2022-11-22 00:14:41,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 00:14:41,757 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:14:41,757 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-22 00:14:41,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:14:41,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-22 00:14:41,959 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:14:41,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:14:41,959 INFO L85 PathProgramCache]: Analyzing trace with hash -2029972017, now seen corresponding path program 1 times [2022-11-22 00:14:41,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:14:41,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891541526] [2022-11-22 00:14:41,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:41,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:14:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:42,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:42,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:14:42,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891541526] [2022-11-22 00:14:42,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891541526] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:14:42,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765632873] [2022-11-22 00:14:42,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:42,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:14:42,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:14:42,239 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:14:42,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:14:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:42,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-22 00:14:42,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:14:42,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:14:42,408 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 00:14:42,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:14:42,422 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:42,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:14:42,563 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:42,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765632873] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:14:42,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1606943567] [2022-11-22 00:14:42,568 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:14:42,568 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:14:42,569 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:14:42,569 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:14:42,569 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:14:42,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:14:42,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:14:42,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:14:42,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:14:42,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:14:42,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:14:42,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:14:42,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:14:42,819 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 22 [2022-11-22 00:14:42,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:14:42,859 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 22 [2022-11-22 00:14:42,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,923 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2022-11-22 00:14:42,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:42,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:14:42,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:14:43,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:14:43,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:14:43,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:14:43,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:14:43,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:43,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,243 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:43,266 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:14:43,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2022-11-22 00:14:43,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:43,312 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 00:14:43,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 387 treesize of output 368 [2022-11-22 00:14:43,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:43,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:43,356 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:14:43,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2022-11-22 00:14:43,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2022-11-22 00:14:43,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:14:43,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:14:43,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:14:43,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:14:43,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:14:43,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:14:43,810 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:43,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:43,835 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:14:43,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2022-11-22 00:14:43,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,862 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:43,870 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 00:14:43,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 387 treesize of output 368 [2022-11-22 00:14:43,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:43,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:43,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:43,908 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:14:43,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2022-11-22 00:14:44,254 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-22 00:14:44,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 310 treesize of output 317 [2022-11-22 00:14:44,650 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 00:14:44,650 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 4 case distinctions, treesize of input 392 treesize of output 389 [2022-11-22 00:14:44,676 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:14:44,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 396 treesize of output 387 [2022-11-22 00:14:44,697 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:14:44,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 396 treesize of output 387 [2022-11-22 00:14:44,768 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:14:48,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1606943567] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:14:48,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:14:48,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 3, 4] total 13 [2022-11-22 00:14:48,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630452700] [2022-11-22 00:14:48,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:14:48,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 00:14:48,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:14:48,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 00:14:48,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-11-22 00:14:48,551 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:49,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:14:49,435 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2022-11-22 00:14:49,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 00:14:49,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 00:14:49,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:14:49,437 INFO L225 Difference]: With dead ends: 58 [2022-11-22 00:14:49,437 INFO L226 Difference]: Without dead ends: 58 [2022-11-22 00:14:49,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-22 00:14:49,438 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 10 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:14:49,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 60 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:14:49,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-22 00:14:49,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 57. [2022-11-22 00:14:49,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 38 states have (on average 1.605263157894737) internal successors, (61), 56 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2022-11-22 00:14:49,448 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 15 [2022-11-22 00:14:49,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:14:49,448 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2022-11-22 00:14:49,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:49,449 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2022-11-22 00:14:49,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 00:14:49,449 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:14:49,449 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:14:49,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 00:14:49,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-22 00:14:49,656 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:14:49,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:14:49,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1373263003, now seen corresponding path program 1 times [2022-11-22 00:14:49,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:14:49,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873292311] [2022-11-22 00:14:49,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:49,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:14:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:50,031 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:14:50,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:14:50,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873292311] [2022-11-22 00:14:50,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873292311] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:14:50,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464673449] [2022-11-22 00:14:50,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:50,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:14:50,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:14:50,034 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:14:50,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 00:14:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:50,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-22 00:14:50,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:14:50,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:14:50,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,205 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 14 [2022-11-22 00:14:50,234 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:14:50,234 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 00:14:50,257 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 00:14:50,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:14:50,327 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-22 00:14:50,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464673449] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:14:50,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1169968104] [2022-11-22 00:14:50,331 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-22 00:14:50,331 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:14:50,332 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:14:50,332 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:14:50,332 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:14:50,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:14:50,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:14:50,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:14:50,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:14:50,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:14:50,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:14:50,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:14:50,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:14:50,577 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 22 [2022-11-22 00:14:50,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:14:50,611 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 22 [2022-11-22 00:14:50,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2022-11-22 00:14:50,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:14:50,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:14:50,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:14:50,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:14:50,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:14:50,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:14:50,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:50,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:50,990 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 00:14:50,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 387 treesize of output 368 [2022-11-22 00:14:51,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:51,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:51,014 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:51,029 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:14:51,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2022-11-22 00:14:51,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:51,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:51,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:51,071 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:14:51,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2022-11-22 00:14:51,272 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:51,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:51,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:51,296 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-22 00:14:51,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 390 treesize of output 385 [2022-11-22 00:14:51,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:51,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:51,329 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:51,347 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-22 00:14:51,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 386 treesize of output 381 [2022-11-22 00:14:51,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:51,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:51,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:51,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:51,390 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 00:14:51,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 379 treesize of output 360 [2022-11-22 00:14:51,916 INFO L321 Elim1Store]: treesize reduction 184, result has 14.8 percent of original size [2022-11-22 00:14:51,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 596 treesize of output 590 [2022-11-22 00:14:52,194 INFO L321 Elim1Store]: treesize reduction 200, result has 14.5 percent of original size [2022-11-22 00:14:52,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 647 treesize of output 539 [2022-11-22 00:14:52,266 INFO L321 Elim1Store]: treesize reduction 200, result has 13.8 percent of original size [2022-11-22 00:14:52,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 647 treesize of output 617 [2022-11-22 00:14:52,332 INFO L321 Elim1Store]: treesize reduction 130, result has 17.7 percent of original size [2022-11-22 00:14:52,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 643 treesize of output 639 [2022-11-22 00:14:52,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:52,506 INFO L321 Elim1Store]: treesize reduction 200, result has 17.0 percent of original size [2022-11-22 00:14:52,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 645 treesize of output 548 [2022-11-22 00:14:52,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:52,598 INFO L321 Elim1Store]: treesize reduction 222, result has 16.9 percent of original size [2022-11-22 00:14:52,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 645 treesize of output 626 [2022-11-22 00:14:52,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:52,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:52,665 INFO L321 Elim1Store]: treesize reduction 125, result has 5.3 percent of original size [2022-11-22 00:14:52,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 658 treesize of output 642 [2022-11-22 00:14:52,799 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:52,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:52,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:52,819 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:14:52,819 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2022-11-22 00:14:52,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:52,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:52,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:52,860 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:14:52,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 381 treesize of output 380 [2022-11-22 00:14:52,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:52,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:52,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:52,897 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 00:14:52,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 387 treesize of output 368 [2022-11-22 00:14:53,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:53,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:53,035 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:53,053 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-22 00:14:53,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 390 treesize of output 385 [2022-11-22 00:14:53,076 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:53,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:53,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:53,101 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-22 00:14:53,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 386 treesize of output 381 [2022-11-22 00:14:53,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:53,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:53,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:53,129 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:14:53,137 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 00:14:53,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 379 treesize of output 360 [2022-11-22 00:14:53,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:14:53,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:14:53,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:14:53,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:14:53,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:14:53,624 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:14:57,782 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1143#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= |ULTIMATE.start_dll_create_~head~0#1.offset| |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_create_#res#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| |ULTIMATE.start_dll_remove_first_#in~head#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_dll_remove_first_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (not (= (select |#valid| |ULTIMATE.start_dll_remove_first_~head#1.base|) 1)) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= |ULTIMATE.start_dll_remove_first_~head#1.base| |ULTIMATE.start_dll_remove_first_#in~head#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_remove_first_~head#1.offset| |ULTIMATE.start_dll_remove_first_#in~head#1.offset|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~len~0#1| (+ |ULTIMATE.start_main_~i~0#1| 1)) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 00:14:57,782 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:14:57,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:14:57,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 7 [2022-11-22 00:14:57,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597636248] [2022-11-22 00:14:57,782 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:14:57,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 00:14:57,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:14:57,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 00:14:57,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2022-11-22 00:14:57,784 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:57,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:14:57,893 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2022-11-22 00:14:57,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:14:57,894 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-22 00:14:57,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:14:57,895 INFO L225 Difference]: With dead ends: 73 [2022-11-22 00:14:57,895 INFO L226 Difference]: Without dead ends: 73 [2022-11-22 00:14:57,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-22 00:14:57,896 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 126 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:14:57,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 56 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:14:57,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-22 00:14:57,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 57. [2022-11-22 00:14:57,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 56 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:57,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2022-11-22 00:14:57,902 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 19 [2022-11-22 00:14:57,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:14:57,902 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2022-11-22 00:14:57,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:14:57,903 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2022-11-22 00:14:57,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 00:14:57,904 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:14:57,904 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:14:57,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 00:14:58,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:14:58,115 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:14:58,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:14:58,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1373263004, now seen corresponding path program 1 times [2022-11-22 00:14:58,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:14:58,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464778112] [2022-11-22 00:14:58,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:58,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:14:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:58,685 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:14:58,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:14:58,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464778112] [2022-11-22 00:14:58,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464778112] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:14:58,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437432207] [2022-11-22 00:14:58,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:14:58,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:14:58,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:14:58,690 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:14:58,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 00:14:58,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:14:58,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-22 00:14:58,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:14:58,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:14:58,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:58,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 00:14:58,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:14:58,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 00:14:59,013 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:14:59,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:15:01,276 WARN L837 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_dll_create_~new_head~0#1.base_32| Int)) (or (not (< |v_ULTIMATE.start_dll_create_~new_head~0#1.base_32| |c_#StackHeapBarrier|)) (forall ((|v_ULTIMATE.start_dll_create_~new_head~0#1.base_31| Int) (v_ArrVal_381 Int)) (or (forall ((v_ArrVal_382 Int)) (<= (+ |c_ULTIMATE.start_main_~#s~0#1.offset| 4) (select (store (store |c_#length| |v_ULTIMATE.start_dll_create_~new_head~0#1.base_32| v_ArrVal_381) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_31| v_ArrVal_382) |c_ULTIMATE.start_main_~#s~0#1.base|))) (not (< |v_ULTIMATE.start_dll_create_~new_head~0#1.base_31| |c_#StackHeapBarrier|)))))) (<= 0 |c_ULTIMATE.start_main_~#s~0#1.offset|)) is different from false [2022-11-22 00:15:01,277 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-22 00:15:01,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437432207] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:15:01,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [205037986] [2022-11-22 00:15:01,280 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2022-11-22 00:15:01,280 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:15:01,280 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:15:01,280 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:15:01,281 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:15:01,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:15:01,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:15:01,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:15:01,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:01,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:01,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:01,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:01,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:15:01,468 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 22 [2022-11-22 00:15:01,479 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 22 [2022-11-22 00:15:01,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:15:01,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2022-11-22 00:15:01,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:15:01,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:15:01,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:15:01,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:15:01,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:15:01,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:01,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:01,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:01,931 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:15:01,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 384 treesize of output 383 [2022-11-22 00:15:01,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:01,966 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 00:15:01,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 390 treesize of output 371 [2022-11-22 00:15:01,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:01,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:01,987 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:02,005 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:15:02,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 384 treesize of output 383 [2022-11-22 00:15:02,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:02,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:02,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:02,213 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-22 00:15:02,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 393 treesize of output 388 [2022-11-22 00:15:02,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:02,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:02,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:02,264 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-22 00:15:02,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 389 treesize of output 384 [2022-11-22 00:15:02,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:02,300 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 00:15:02,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 382 treesize of output 363 [2022-11-22 00:15:02,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,693 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-22 00:15:02,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 51 [2022-11-22 00:15:02,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:02,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:02,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:15:02,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:02,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:02,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:02,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:02,982 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:02,989 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 00:15:02,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 390 treesize of output 371 [2022-11-22 00:15:03,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:03,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:03,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:03,031 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:15:03,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 384 treesize of output 383 [2022-11-22 00:15:03,051 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:03,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:03,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:03,070 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 00:15:03,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 384 treesize of output 383 [2022-11-22 00:15:03,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:03,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:03,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:03,245 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-11-22 00:15:03,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 393 treesize of output 388 [2022-11-22 00:15:03,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:03,270 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:03,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 389 treesize of output 384 [2022-11-22 00:15:03,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:03,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:03,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:03,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:03,310 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-22 00:15:03,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 382 treesize of output 363 [2022-11-22 00:15:03,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:15:03,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:15:03,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:15:03,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:03,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:03,756 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:15:07,925 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1407#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (not (<= (+ |ULTIMATE.start_dll_remove_first_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_remove_first_~head#1.base|))) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (= |ULTIMATE.start_dll_create_~head~0#1.offset| |ULTIMATE.start_dll_create_#res#1.offset|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_create_#res#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| |ULTIMATE.start_dll_remove_first_#in~head#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_dll_remove_first_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= |ULTIMATE.start_dll_remove_first_~head#1.base| |ULTIMATE.start_dll_remove_first_#in~head#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_remove_first_~head#1.offset| |ULTIMATE.start_dll_remove_first_#in~head#1.offset|) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~len~0#1| (+ |ULTIMATE.start_main_~i~0#1| 1)) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 00:15:07,925 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:15:07,925 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:15:07,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 4] total 10 [2022-11-22 00:15:07,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035582327] [2022-11-22 00:15:07,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:15:07,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 00:15:07,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:07,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 00:15:07,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=317, Unknown=1, NotChecked=38, Total=462 [2022-11-22 00:15:07,928 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:08,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:08,074 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2022-11-22 00:15:08,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:15:08,079 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-22 00:15:08,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:08,080 INFO L225 Difference]: With dead ends: 53 [2022-11-22 00:15:08,080 INFO L226 Difference]: Without dead ends: 53 [2022-11-22 00:15:08,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=131, Invalid=378, Unknown=1, NotChecked=42, Total=552 [2022-11-22 00:15:08,081 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 206 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:08,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 22 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 41 Unchecked, 0.1s Time] [2022-11-22 00:15:08,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-22 00:15:08,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-22 00:15:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-11-22 00:15:08,086 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 19 [2022-11-22 00:15:08,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:08,086 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-11-22 00:15:08,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-11-22 00:15:08,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 00:15:08,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:08,087 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:08,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 00:15:08,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:15:08,295 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:08,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:08,296 INFO L85 PathProgramCache]: Analyzing trace with hash -378519837, now seen corresponding path program 1 times [2022-11-22 00:15:08,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:08,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319830035] [2022-11-22 00:15:08,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:08,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:08,484 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 00:15:08,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:08,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319830035] [2022-11-22 00:15:08,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319830035] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:08,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:08,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 00:15:08,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96432428] [2022-11-22 00:15:08,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:08,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 00:15:08,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:08,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 00:15:08,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 00:15:08,487 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:08,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:08,678 INFO L93 Difference]: Finished difference Result 73 states and 78 transitions. [2022-11-22 00:15:08,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:15:08,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-22 00:15:08,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:08,679 INFO L225 Difference]: With dead ends: 73 [2022-11-22 00:15:08,679 INFO L226 Difference]: Without dead ends: 73 [2022-11-22 00:15:08,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-22 00:15:08,680 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 84 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:08,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 72 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:15:08,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-22 00:15:08,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 53. [2022-11-22 00:15:08,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.45) internal successors, (58), 52 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:08,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2022-11-22 00:15:08,684 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 20 [2022-11-22 00:15:08,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:08,685 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2022-11-22 00:15:08,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:08,685 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-11-22 00:15:08,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 00:15:08,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:08,686 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:08,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 00:15:08,686 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:08,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:08,686 INFO L85 PathProgramCache]: Analyzing trace with hash -378519836, now seen corresponding path program 1 times [2022-11-22 00:15:08,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:08,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053756033] [2022-11-22 00:15:08,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:08,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:09,025 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:15:09,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:09,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053756033] [2022-11-22 00:15:09,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053756033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:09,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:09,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 00:15:09,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369960769] [2022-11-22 00:15:09,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:09,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 00:15:09,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:09,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 00:15:09,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 00:15:09,028 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:09,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:09,221 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2022-11-22 00:15:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:15:09,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-22 00:15:09,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:09,222 INFO L225 Difference]: With dead ends: 66 [2022-11-22 00:15:09,222 INFO L226 Difference]: Without dead ends: 66 [2022-11-22 00:15:09,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-22 00:15:09,223 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 128 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:09,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 66 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:15:09,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-22 00:15:09,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 51. [2022-11-22 00:15:09,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 50 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:09,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2022-11-22 00:15:09,227 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 20 [2022-11-22 00:15:09,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:09,227 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2022-11-22 00:15:09,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:09,227 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2022-11-22 00:15:09,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 00:15:09,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:09,228 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:09,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 00:15:09,228 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:09,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:09,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1314706967, now seen corresponding path program 1 times [2022-11-22 00:15:09,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:09,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288071825] [2022-11-22 00:15:09,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:09,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:09,799 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:15:09,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:09,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288071825] [2022-11-22 00:15:09,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288071825] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:15:09,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843080360] [2022-11-22 00:15:09,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:09,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:15:09,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:15:09,803 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:15:09,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 00:15:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:09,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-22 00:15:09,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:15:09,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:15:10,021 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 00:15:10,021 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 11 [2022-11-22 00:15:10,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:10,092 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 23 treesize of output 22 [2022-11-22 00:15:10,118 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:15:10,119 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 34 treesize of output 35 [2022-11-22 00:15:10,287 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 49 treesize of output 37 [2022-11-22 00:15:10,360 INFO L321 Elim1Store]: treesize reduction 3, result has 78.6 percent of original size [2022-11-22 00:15:10,361 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 47 treesize of output 27 [2022-11-22 00:15:10,372 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:15:10,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:15:10,473 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 28 treesize of output 20 [2022-11-22 00:15:10,594 INFO L321 Elim1Store]: treesize reduction 5, result has 79.2 percent of original size [2022-11-22 00:15:10,594 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 28 treesize of output 27 [2022-11-22 00:15:10,604 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_580 (Array Int Int)) (|ULTIMATE.start_main_~#s~0#1.base| Int)) (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_580))) (let ((.cse1 (select (select .cse0 |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (= (select (select .cse0 .cse1) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)))))) is different from false [2022-11-22 00:15:10,729 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:10,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 51 [2022-11-22 00:15:10,804 INFO L321 Elim1Store]: treesize reduction 36, result has 48.6 percent of original size [2022-11-22 00:15:10,804 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 124 [2022-11-22 00:15:10,820 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:10,820 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 108 treesize of output 104 [2022-11-22 00:15:10,977 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-22 00:15:10,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843080360] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:15:10,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [590998157] [2022-11-22 00:15:10,982 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-22 00:15:10,983 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:15:10,983 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:15:10,983 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:15:10,984 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:15:11,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:15:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:15:11,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:15:11,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:11,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:11,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:11,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:15:11,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:11,209 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 22 [2022-11-22 00:15:11,221 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 22 [2022-11-22 00:15:11,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:15:11,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2022-11-22 00:15:11,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:15:11,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:15:11,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:15:11,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:11,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:15:11,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:15:11,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,551 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 00:15:11,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:11,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,597 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 00:15:11,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,658 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:11,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 46 treesize of output 47 [2022-11-22 00:15:11,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:11,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 46 treesize of output 47 [2022-11-22 00:15:11,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:11,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:12,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,075 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-22 00:15:12,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 51 [2022-11-22 00:15:12,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:15:12,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:12,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:12,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:12,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:12,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:12,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,338 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:15:12,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,361 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:15:12,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:12,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:15:12,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:12,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:15:12,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:15:12,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:15:12,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:12,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:12,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:15:12,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:12,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 00:15:12,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:12,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 00:15:12,677 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 22 [2022-11-22 00:15:12,689 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 22 [2022-11-22 00:15:12,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,718 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 27 treesize of output 11 [2022-11-22 00:15:12,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:12,744 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:15:12,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:12,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:12,773 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 00:15:12,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2022-11-22 00:15:12,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:15:12,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:15:12,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:12,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:12,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:15:12,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:12,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:12,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 00:15:12,949 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 22 [2022-11-22 00:15:12,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:12,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 00:15:12,972 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 22 [2022-11-22 00:15:13,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:13,014 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 00:15:13,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2022-11-22 00:15:13,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:13,031 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 27 treesize of output 11 [2022-11-22 00:15:13,045 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:13,056 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:15:13,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:13,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:15:13,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:15:13,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:13,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:15:13,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:13,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:13,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:13,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:13,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:13,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:13,381 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:15:13,382 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:15:13,471 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 23 treesize of output 22 [2022-11-22 00:15:13,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:13,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:13,484 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:13,490 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:15:13,491 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:15:13,526 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 23 treesize of output 22 [2022-11-22 00:15:13,575 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:15:17,503 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1961#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= (+ |ULTIMATE.start_dll_remove_first_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_remove_first_~head#1.base|)) (= |ULTIMATE.start_dll_create_~head~0#1.offset| |ULTIMATE.start_dll_create_#res#1.offset|) (not (= (select |#valid| |ULTIMATE.start_dll_remove_first_~temp~1#1.base|) 1)) (<= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|) 8) (select |#length| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|))) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_create_#res#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|) 4)) |ULTIMATE.start_dll_remove_first_~temp~1#1.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~#s~0#1.offset| |ULTIMATE.start_dll_remove_first_#in~head#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_dll_remove_first_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_dll_remove_first_~temp~1#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|) 4))) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (or (not (= 0 |ULTIMATE.start_dll_remove_first_~temp~1#1.offset|)) (not (= |ULTIMATE.start_dll_remove_first_~temp~1#1.base| 0))) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= |ULTIMATE.start_dll_remove_first_~head#1.base| |ULTIMATE.start_dll_remove_first_#in~head#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= (select |#valid| |ULTIMATE.start_dll_remove_first_~head#1.base|) 1) (= |ULTIMATE.start_dll_remove_first_~head#1.offset| |ULTIMATE.start_dll_remove_first_#in~head#1.offset|) (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|)) 1) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~len~0#1| (+ |ULTIMATE.start_main_~i~0#1| 1)) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 00:15:17,503 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:15:17,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:15:17,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 31 [2022-11-22 00:15:17,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531388374] [2022-11-22 00:15:17,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:15:17,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-22 00:15:17,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:17,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-22 00:15:17,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1689, Unknown=13, NotChecked=84, Total=1980 [2022-11-22 00:15:17,506 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 32 states, 31 states have (on average 1.967741935483871) internal successors, (61), 32 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:19,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:19,086 INFO L93 Difference]: Finished difference Result 85 states and 91 transitions. [2022-11-22 00:15:19,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-22 00:15:19,087 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 1.967741935483871) internal successors, (61), 32 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-22 00:15:19,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:19,088 INFO L225 Difference]: With dead ends: 85 [2022-11-22 00:15:19,089 INFO L226 Difference]: Without dead ends: 85 [2022-11-22 00:15:19,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=411, Invalid=2660, Unknown=13, NotChecked=108, Total=3192 [2022-11-22 00:15:19,091 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 324 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 60 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:19,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 286 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 864 Invalid, 0 Unknown, 60 Unchecked, 0.7s Time] [2022-11-22 00:15:19,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-22 00:15:19,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 53. [2022-11-22 00:15:19,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 52 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:19,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2022-11-22 00:15:19,106 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 22 [2022-11-22 00:15:19,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:19,106 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2022-11-22 00:15:19,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 1.967741935483871) internal successors, (61), 32 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:19,107 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2022-11-22 00:15:19,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 00:15:19,108 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:19,108 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:19,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 00:15:19,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-22 00:15:19,315 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:19,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:19,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1314706968, now seen corresponding path program 1 times [2022-11-22 00:15:19,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:19,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087602852] [2022-11-22 00:15:19,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:19,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:20,543 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:15:20,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:20,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087602852] [2022-11-22 00:15:20,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087602852] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:15:20,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505058310] [2022-11-22 00:15:20,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:20,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:15:20,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:15:20,547 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:15:20,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 00:15:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:20,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-22 00:15:20,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:15:20,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:15:20,803 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 00:15:20,803 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 11 [2022-11-22 00:15:20,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:20,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:20,908 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 23 treesize of output 22 [2022-11-22 00:15:20,919 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 22 [2022-11-22 00:15:21,023 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:15:21,025 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 63 treesize of output 60 [2022-11-22 00:15:21,034 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 50 treesize of output 48 [2022-11-22 00:15:21,399 INFO L321 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2022-11-22 00:15:21,399 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 143 treesize of output 70 [2022-11-22 00:15:21,425 INFO L321 Elim1Store]: treesize reduction 14, result has 57.6 percent of original size [2022-11-22 00:15:21,425 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 5 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 45 [2022-11-22 00:15:21,510 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:15:21,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:15:22,225 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:22,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 265 treesize of output 329 [2022-11-22 00:15:23,289 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse8 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 1))) (and (forall ((|ULTIMATE.start_main_~#s~0#1.base| Int) (v_ArrVal_687 (Array Int Int)) (v_ArrVal_686 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_687))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_686) |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (select (select .cse0 |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse0 .cse1) (+ .cse2 4)) 8)) (not (= .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (not (= .cse2 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse7 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6)) (.cse6 (select (select .cse7 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse5 (+ 4 .cse6)) (.cse4 (select (select .cse3 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (= 0 (select (select .cse3 .cse4) .cse5)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse6)) (< (select (select .cse7 .cse4) .cse5) .cse8) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse4))))))) (forall ((v_prenex_4 Int) (v_prenex_6 (Array Int Int))) (let ((.cse14 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse12 (select (select .cse14 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (forall ((v_prenex_5 (Array Int Int))) (let ((.cse11 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse10 (select (select .cse11 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse13 (+ 4 .cse10))) (let ((.cse9 (select (select .cse14 .cse12) .cse13))) (or (= 0 .cse9) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse10)) (< (select (select .cse11 .cse12) .cse13) .cse8) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse9))))))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse12)))))) (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse21 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse16 (select (select .cse21 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse18 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse17 (select (select .cse18 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse19 (+ .cse16 4))) (let ((.cse15 (select (select .cse21 .cse17) .cse19))) (or (= .cse15 0) (not (= .cse16 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse15 .cse8) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse17)) (= (select (select .cse18 .cse17) .cse19) (select (let ((.cse20 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse20 (select (select .cse20 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ 4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))))) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse25 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse24 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse23 (select (select .cse25 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse22 (select (select .cse25 .cse24) (+ .cse23 4)))) (or (= .cse22 0) (not (= .cse23 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse22 .cse8) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse24))))))) (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse28 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse27 (select (select .cse28 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse32 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse29 (select (select .cse32 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse30 (+ 4 .cse27))) (let ((.cse26 (select (select .cse32 .cse29) .cse30))) (or (= 0 .cse26) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse27)) (< (select (select .cse28 .cse29) .cse30) .cse8) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse29)) (= (select (let ((.cse31 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse31 (select (select .cse31 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) .cse26))))))) (or (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (= (select (let ((.cse33 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse33 (select (select .cse33 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse37 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse36 (select (select .cse37 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse35 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse34 (select (select .cse37 .cse36) (+ 4 .cse35)))) (or (= 0 .cse34) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse35)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse34) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse36)))))))) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse38 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse41 (select (select .cse38 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse44 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse39 (select (select .cse44 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse40 (+ .cse41 4))) (let ((.cse42 (select (select .cse44 .cse39) .cse40))) (or (= (select (select .cse38 .cse39) .cse40) 0) (not (= .cse41 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (= .cse42 (select (let ((.cse43 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse43 (select (select .cse43 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ 4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse39)) (= .cse42 |c_ULTIMATE.start_dll_create_~head~0#1.base|))))))) (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse49 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse47 (select (select .cse49 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse46 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse45 (select (select .cse49 .cse47) (+ 4 .cse46)))) (or (= 0 .cse45) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse46)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse45) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse47)) (= (select (let ((.cse48 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse48 (select (select .cse48 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) .cse45)))))) (or (and (forall ((v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (let ((.cse53 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (forall ((v_prenex_2 (Array Int Int))) (let ((.cse52 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse51 (select (select .cse52 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse50 (select (select .cse52 .cse53) (+ .cse51 4)))) (or (= .cse50 0) (not (= .cse51 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse50 .cse8)))))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse53))))) (forall ((v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (let ((.cse58 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse54 (select (select .cse58 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse54)) (forall ((v_prenex_2 (Array Int Int))) (let ((.cse55 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse57 (select (select .cse55 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse56 (+ .cse57 4))) (or (= (select (select .cse55 .cse54) .cse56) 0) (not (= .cse57 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= (select (select .cse58 .cse54) .cse56) |c_ULTIMATE.start_dll_create_~head~0#1.base|))))))))))) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (let ((.cse59 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse59 (select (select .cse59 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ 4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse65 (select (let ((.cse67 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse67 (select (select .cse67 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (or (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse62 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse61 (select (select .cse62 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse66 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse63 (select (select .cse66 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse64 (+ 4 .cse61))) (let ((.cse60 (select (select .cse66 .cse63) .cse64))) (or (= 0 .cse60) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse61)) (< (select (select .cse62 .cse63) .cse64) .cse8) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse63)) (= .cse65 .cse60))))))) (= .cse65 |c_ULTIMATE.start_dll_create_~head~0#1.base|)))))) is different from false [2022-11-22 00:15:24,067 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse70 (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))) (let ((.cse4 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 1)) (.cse8 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse70 0))) (.cse7 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse70 0)))) (and (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse2 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse1 (select (select .cse2 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse9 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse0 (select (select .cse9 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse3 (+ .cse1 4))) (let ((.cse5 (select (select .cse9 .cse0) .cse3))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse1)) (< (select (select .cse2 .cse0) .cse3) .cse4) (= .cse5 0) (= .cse5 (select (let ((.cse6 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse6 (select (select .cse6 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))))))) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse15 (select (let ((.cse17 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse17 (select (select .cse17 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (or (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse12 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse11 (select (select .cse12 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse16 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse10 (select (select .cse16 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse13 (+ .cse11 4))) (let ((.cse14 (select (select .cse16 .cse10) .cse13))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse10)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse11)) (< (select (select .cse12 .cse10) .cse13) .cse4) (= .cse14 0) (= .cse14 .cse15))))))) (= .cse15 |c_ULTIMATE.start_dll_create_~head~0#1.base|)))) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse21 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse18 (select (select (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse20 (select (select .cse21 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse19 (select (select .cse21 .cse18) (+ .cse20 4)))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse18)) (= .cse19 0) (not (= .cse20 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse19 .cse4)))))) (forall ((|ULTIMATE.start_main_~#s~0#1.base| Int) (v_ArrVal_687 (Array Int Int)) (v_ArrVal_686 (Array Int Int))) (let ((.cse22 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_687))) (let ((.cse24 (select (select .cse22 |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse23 (select (select (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_686) |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse22 .cse23) (+ .cse24 4)) 8)) (not (= .cse24 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= .cse23 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)))))) (forall ((v_prenex_4 Int) (v_prenex_6 (Array Int Int))) (let ((.cse30 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse25 (select (select .cse30 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse25)) (forall ((v_prenex_5 (Array Int Int))) (let ((.cse28 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse27 (select (select .cse28 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse29 (+ .cse27 4))) (let ((.cse26 (select (select .cse30 .cse25) .cse29))) (or (= .cse26 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse27)) (< (select (select .cse28 .cse25) .cse29) .cse4) (= .cse26 0))))))))))) (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse37 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse33 (select (select .cse37 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse35 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse31 (select (select .cse35 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse36 (+ .cse33 4))) (let ((.cse32 (select (select .cse37 .cse31) .cse36))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse31)) (= .cse32 0) (not (= .cse33 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= (select (let ((.cse34 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse34 (select (select .cse34 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) (select (select .cse35 .cse31) .cse36)) (< .cse32 .cse4))))))) (or (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (= (select (let ((.cse38 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse38 (select (select .cse38 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (and (forall ((v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (let ((.cse40 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse39 (select (select .cse40 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse39)) (forall ((v_prenex_2 (Array Int Int))) (let ((.cse42 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse43 (select (select .cse42 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse41 (+ .cse43 4))) (or (= (select (select .cse40 .cse39) .cse41) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (= (select (select .cse42 .cse39) .cse41) 0) (not (= .cse43 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))))))) (forall ((v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (let ((.cse44 (select (select (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse44)) (forall ((v_prenex_2 (Array Int Int))) (let ((.cse47 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse46 (select (select .cse47 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse45 (select (select .cse47 .cse44) (+ .cse46 4)))) (or (= .cse45 0) (not (= .cse46 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse45 .cse4))))))))))) (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse52 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse48 (select (select .cse52 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse50 (select (select (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse49 (select (select .cse52 .cse48) (+ .cse50 4)))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse48)) (= .cse49 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse50)) (= .cse49 0) (= .cse49 (select (let ((.cse51 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse51 (select (select .cse51 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))))))) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse55 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse54 (select (select .cse55 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse57 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse53 (select (select .cse57 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse56 (+ .cse54 4))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse53)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse54)) (< (select (select .cse55 .cse53) .cse56) .cse4) (= (select (select .cse57 .cse53) .cse56) 0)))))) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse61 (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse63 (select (select .cse61 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse64 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse59 (select (select .cse64 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse62 (+ .cse63 4))) (let ((.cse58 (select (select .cse64 .cse59) .cse62))) (or (= .cse58 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse59)) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (= (select (let ((.cse60 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse60 (select (select .cse60 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) .cse58)) (= (select (select .cse61 .cse59) .cse62) 0) (not (= .cse63 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))))) (or (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (= (select (let ((.cse65 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse65 (select (select .cse65 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse69 (store .cse7 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse66 (select (select .cse69 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse68 (select (select (store .cse8 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse67 (select (select .cse69 .cse66) (+ .cse68 4)))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse66)) (= .cse67 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse68)) (= .cse67 0)))))))))) is different from false [2022-11-22 00:15:24,217 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:24,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 131 [2022-11-22 00:15:24,678 INFO L321 Elim1Store]: treesize reduction 232, result has 36.8 percent of original size [2022-11-22 00:15:24,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 21 case distinctions, treesize of input 533 treesize of output 547 [2022-11-22 00:15:24,722 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:24,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 372 treesize of output 244 [2022-11-22 00:15:25,054 INFO L321 Elim1Store]: treesize reduction 204, result has 43.0 percent of original size [2022-11-22 00:15:25,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 27 case distinctions, treesize of input 872 treesize of output 897 [2022-11-22 00:15:25,156 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:25,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 813 treesize of output 767 [2022-11-22 00:15:25,232 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:25,233 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 566 treesize of output 552 [2022-11-22 00:15:25,345 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:25,345 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 369 treesize of output 365 [2022-11-22 00:15:27,924 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:27,924 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 90 [2022-11-22 00:15:27,935 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:27,936 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 85 treesize of output 60 [2022-11-22 00:15:27,977 INFO L321 Elim1Store]: treesize reduction 4, result has 90.2 percent of original size [2022-11-22 00:15:27,977 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 2 case distinctions, treesize of input 116 treesize of output 118 [2022-11-22 00:15:28,328 INFO L321 Elim1Store]: treesize reduction 232, result has 46.2 percent of original size [2022-11-22 00:15:28,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 1 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 36 case distinctions, treesize of input 322 treesize of output 440 [2022-11-22 00:15:28,378 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:28,379 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 325 treesize of output 317 [2022-11-22 00:15:28,410 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 148 treesize of output 128 [2022-11-22 00:15:31,182 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:15:31,182 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 308 treesize of output 1 [2022-11-22 00:15:31,211 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:15:31,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 465 treesize of output 1 [2022-11-22 00:15:31,224 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:15:31,224 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 308 treesize of output 1 [2022-11-22 00:15:31,236 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:15:31,237 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 310 treesize of output 1 [2022-11-22 00:15:31,249 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:15:31,250 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 240 treesize of output 1 [2022-11-22 00:15:31,263 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:15:31,264 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 381 treesize of output 1 [2022-11-22 00:15:31,275 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:15:31,276 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 242 treesize of output 1 [2022-11-22 00:15:31,289 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:15:31,289 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 310 treesize of output 1 [2022-11-22 00:15:31,300 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:15:31,301 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 171 treesize of output 1 [2022-11-22 00:15:31,523 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-22 00:15:31,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505058310] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:15:31,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [884183596] [2022-11-22 00:15:31,525 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-22 00:15:31,525 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:15:31,526 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:15:31,526 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:15:31,526 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:15:31,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:15:31,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:15:31,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:15:31,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:31,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:31,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:31,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:15:31,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:31,697 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 22 [2022-11-22 00:15:31,708 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 22 [2022-11-22 00:15:31,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:15:31,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-22 00:15:31,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:31,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:31,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:15:31,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:31,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:31,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:31,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:32,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:32,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,047 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:15:32,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,068 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:15:32,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:15:32,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:15:32,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:32,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-22 00:15:32,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:15:32,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:32,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:32,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:32,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:32,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:32,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,712 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:15:32,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,730 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:15:32,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,758 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:32,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:32,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:15:32,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:32,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:15:33,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:15:33,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:15:33,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:33,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:15:33,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:33,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:33,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:33,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:33,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:33,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:33,292 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:15:33,293 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:15:33,347 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 23 treesize of output 22 [2022-11-22 00:15:33,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:33,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:33,361 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:33,367 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:15:33,367 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:15:33,396 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 23 treesize of output 22 [2022-11-22 00:15:33,438 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:15:38,559 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2304#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= (+ |ULTIMATE.start_dll_remove_first_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_remove_first_~head#1.base|)) (= |ULTIMATE.start_dll_create_~head~0#1.offset| |ULTIMATE.start_dll_create_#res#1.offset|) (or (not (<= (+ 12 |ULTIMATE.start_dll_remove_first_~temp~1#1.offset|) (select |#length| |ULTIMATE.start_dll_remove_first_~temp~1#1.base|))) (not (<= 0 (+ 8 |ULTIMATE.start_dll_remove_first_~temp~1#1.offset|)))) (<= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|) 8) (select |#length| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|))) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_create_#res#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|) 4)) |ULTIMATE.start_dll_remove_first_~temp~1#1.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_main_~#s~0#1.offset| |ULTIMATE.start_dll_remove_first_#in~head#1.offset|) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_dll_remove_first_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_dll_remove_first_~temp~1#1.base| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|)) (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|) 4))) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (or (not (= 0 |ULTIMATE.start_dll_remove_first_~temp~1#1.offset|)) (not (= |ULTIMATE.start_dll_remove_first_~temp~1#1.base| 0))) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= |ULTIMATE.start_dll_remove_first_~head#1.base| |ULTIMATE.start_dll_remove_first_#in~head#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= (select |#valid| |ULTIMATE.start_dll_remove_first_~head#1.base|) 1) (= |ULTIMATE.start_dll_remove_first_~head#1.offset| |ULTIMATE.start_dll_remove_first_#in~head#1.offset|) (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_remove_first_~head#1.base|) |ULTIMATE.start_dll_remove_first_~head#1.offset|)) 1) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~len~0#1| (+ |ULTIMATE.start_main_~i~0#1| 1)) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 00:15:38,559 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:15:38,559 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:15:38,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13, 13] total 37 [2022-11-22 00:15:38,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004637263] [2022-11-22 00:15:38,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:15:38,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-11-22 00:15:38,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:38,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-11-22 00:15:38,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=2134, Unknown=2, NotChecked=190, Total=2550 [2022-11-22 00:15:38,562 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand has 38 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 38 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:38,981 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse76 (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (.cse77 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse75 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse78 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (.cse79 (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse2 (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse3 (<= .cse79 12)) (.cse1 (= .cse79 12)) (.cse0 (= (select .cse75 .cse78) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse22 (select .cse77 .cse78)) (.cse8 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 1)) (.cse12 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse77 .cse76 0))) (.cse11 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse75 .cse76 0)))) (and (or .cse0 (not .cse1)) .cse2 .cse3 (or (and .cse2 .cse3) .cse1) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse6 (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse5 (select (select .cse6 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse13 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse4 (select (select .cse13 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse7 (+ .cse5 4))) (let ((.cse9 (select (select .cse13 .cse4) .cse7))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse4)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse5)) (< (select (select .cse6 .cse4) .cse7) .cse8) (= .cse9 0) (= .cse9 (select (let ((.cse10 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse10 (select (select .cse10 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))))))) .cse0 (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse19 (select (let ((.cse21 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse21 (select (select .cse21 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (or (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse16 (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse15 (select (select .cse16 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse20 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse14 (select (select .cse20 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse17 (+ .cse15 4))) (let ((.cse18 (select (select .cse20 .cse14) .cse17))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse14)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse15)) (< (select (select .cse16 .cse14) .cse17) .cse8) (= .cse18 0) (= .cse18 .cse19))))))) (= .cse19 |c_ULTIMATE.start_dll_create_~head~0#1.base|)))) (= .cse22 0) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse26 (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse23 (select (select (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse25 (select (select .cse26 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse24 (select (select .cse26 .cse23) (+ .cse25 4)))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse23)) (= .cse24 0) (not (= .cse25 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse24 .cse8)))))) (<= (select |c_#length| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 12) (forall ((|ULTIMATE.start_main_~#s~0#1.base| Int) (v_ArrVal_687 (Array Int Int)) (v_ArrVal_686 (Array Int Int))) (let ((.cse27 (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_687))) (let ((.cse29 (select (select .cse27 |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse28 (select (select (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_686) |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse27 .cse28) (+ .cse29 4)) 8)) (not (= .cse29 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= .cse28 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)))))) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| .cse22) (forall ((v_prenex_4 Int) (v_prenex_6 (Array Int Int))) (let ((.cse35 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse30 (select (select .cse35 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse30)) (forall ((v_prenex_5 (Array Int Int))) (let ((.cse33 (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse32 (select (select .cse33 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse34 (+ .cse32 4))) (let ((.cse31 (select (select .cse35 .cse30) .cse34))) (or (= .cse31 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse32)) (< (select (select .cse33 .cse30) .cse34) .cse8) (= .cse31 0))))))))))) (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse42 (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse38 (select (select .cse42 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse40 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse36 (select (select .cse40 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse41 (+ .cse38 4))) (let ((.cse37 (select (select .cse42 .cse36) .cse41))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse36)) (= .cse37 0) (not (= .cse38 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= (select (let ((.cse39 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse39 (select (select .cse39 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) (select (select .cse40 .cse36) .cse41)) (< .cse37 .cse8))))))) (or (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (= (select (let ((.cse43 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse43 (select (select .cse43 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (and (forall ((v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (let ((.cse45 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse44 (select (select .cse45 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse44)) (forall ((v_prenex_2 (Array Int Int))) (let ((.cse47 (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse48 (select (select .cse47 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse46 (+ .cse48 4))) (or (= (select (select .cse45 .cse44) .cse46) |c_ULTIMATE.start_dll_create_~head~0#1.base|) (= (select (select .cse47 .cse44) .cse46) 0) (not (= .cse48 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))))))) (forall ((v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (let ((.cse49 (select (select (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse49)) (forall ((v_prenex_2 (Array Int Int))) (let ((.cse52 (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse51 (select (select .cse52 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse50 (select (select .cse52 .cse49) (+ .cse51 4)))) (or (= .cse50 0) (not (= .cse51 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse50 .cse8))))))))))) (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse57 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse53 (select (select .cse57 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse55 (select (select (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse54 (select (select .cse57 .cse53) (+ .cse55 4)))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse53)) (= .cse54 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse55)) (= .cse54 0) (= .cse54 (select (let ((.cse56 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse56 (select (select .cse56 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))))))) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse60 (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse59 (select (select .cse60 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse62 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse58 (select (select .cse62 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse61 (+ .cse59 4))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse58)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse59)) (< (select (select .cse60 .cse58) .cse61) .cse8) (= (select (select .cse62 .cse58) .cse61) 0)))))) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse66 (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse68 (select (select .cse66 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse69 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse64 (select (select .cse69 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse67 (+ .cse68 4))) (let ((.cse63 (select (select .cse69 .cse64) .cse67))) (or (= .cse63 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse64)) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (= (select (let ((.cse65 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse65 (select (select .cse65 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) .cse63)) (= (select (select .cse66 .cse64) .cse67) 0) (not (= .cse68 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))))) (or (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (= (select (let ((.cse70 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse70 (select (select .cse70 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse74 (store .cse11 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse71 (select (select .cse74 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse73 (select (select (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse72 (select (select .cse74 .cse71) (+ .cse73 4)))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse71)) (= .cse72 |c_ULTIMATE.start_dll_create_~head~0#1.base|) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse73)) (= .cse72 0))))))) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1)))) is different from false [2022-11-22 00:15:39,013 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse67 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse7 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse76 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (.cse6 (select |c_#length| |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse2 (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0)) (.cse1 (= .cse6 12)) (.cse0 (= (select .cse7 .cse76) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (.cse9 (select .cse67 .cse76)) (.cse8 (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (.cse15 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 1))) (and (or .cse0 (not .cse1)) .cse2 (forall ((|ULTIMATE.start_main_~#s~0#1.base| Int) (v_ArrVal_687 (Array Int Int)) (v_ArrVal_686 (Array Int Int))) (let ((.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_687))) (let ((.cse4 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_686) |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse5 (select (select .cse3 |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse3 .cse4) (+ .cse5 4)) 8)) (not (= .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (not (= .cse5 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))) (or (and .cse2 (<= .cse6 12)) .cse1) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) .cse0 (= (select .cse7 .cse8) 0) (= .cse9 0) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (<= (select |c_#length| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 12) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse14 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse10 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6)) (.cse13 (select (select .cse14 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse12 (+ 4 .cse13)) (.cse11 (select (select .cse10 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (= 0 (select (select .cse10 .cse11) .cse12)) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse13)) (< (select (select .cse14 .cse11) .cse12) .cse15) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse11))))))) (forall ((v_prenex_4 Int) (v_prenex_6 (Array Int Int))) (let ((.cse21 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse19 (select (select .cse21 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (forall ((v_prenex_5 (Array Int Int))) (let ((.cse18 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse17 (select (select .cse18 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse20 (+ 4 .cse17))) (let ((.cse16 (select (select .cse21 .cse19) .cse20))) (or (= 0 .cse16) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse17)) (< (select (select .cse18 .cse19) .cse20) .cse15) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse16))))))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse19)))))) (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse28 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse23 (select (select .cse28 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse25 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse24 (select (select .cse25 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse26 (+ .cse23 4))) (let ((.cse22 (select (select .cse28 .cse24) .cse26))) (or (= .cse22 0) (not (= .cse23 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse22 .cse15) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse24)) (= (select (select .cse25 .cse24) .cse26) (select (let ((.cse27 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse27 (select (select .cse27 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ 4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))))) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| .cse9) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse32 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse31 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse30 (select (select .cse32 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse29 (select (select .cse32 .cse31) (+ .cse30 4)))) (or (= .cse29 0) (not (= .cse30 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse29 .cse15) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse31))))))) (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse35 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse34 (select (select .cse35 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse39 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse36 (select (select .cse39 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse37 (+ 4 .cse34))) (let ((.cse33 (select (select .cse39 .cse36) .cse37))) (or (= 0 .cse33) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse34)) (< (select (select .cse35 .cse36) .cse37) .cse15) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse36)) (= (select (let ((.cse38 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse38 (select (select .cse38 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) .cse33))))))) (or (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (= (select (let ((.cse40 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse40 (select (select .cse40 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse44 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse43 (select (select .cse44 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse42 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse41 (select (select .cse44 .cse43) (+ 4 .cse42)))) (or (= 0 .cse41) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse42)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse41) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse43)))))))) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse45 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse48 (select (select .cse45 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse51 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse46 (select (select .cse51 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse47 (+ .cse48 4))) (let ((.cse49 (select (select .cse51 .cse46) .cse47))) (or (= (select (select .cse45 .cse46) .cse47) 0) (not (= .cse48 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (= .cse49 (select (let ((.cse50 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse50 (select (select .cse50 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ 4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse46)) (= .cse49 |c_ULTIMATE.start_dll_create_~head~0#1.base|))))))) (forall ((v_prenex_4 Int) (v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int)) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse56 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse54 (select (select .cse56 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse53 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse52 (select (select .cse56 .cse54) (+ 4 .cse53)))) (or (= 0 .cse52) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse53)) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| .cse52) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse54)) (= (select (let ((.cse55 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse55 (select (select .cse55 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)) .cse52)))))) (or (and (forall ((v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (let ((.cse60 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (forall ((v_prenex_2 (Array Int Int))) (let ((.cse59 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse58 (select (select .cse59 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse57 (select (select .cse59 .cse60) (+ .cse58 4)))) (or (= .cse57 0) (not (= .cse58 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (< .cse57 .cse15)))))) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse60))))) (forall ((v_prenex_1 Int) (v_prenex_3 (Array Int Int))) (let ((.cse65 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (let ((.cse61 (select (select .cse65 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse61)) (forall ((v_prenex_2 (Array Int Int))) (let ((.cse62 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2))) (let ((.cse64 (select (select .cse62 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse63 (+ .cse64 4))) (or (= (select (select .cse62 .cse61) .cse63) 0) (not (= .cse64 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= (select (select .cse65 .cse61) .cse63) |c_ULTIMATE.start_dll_create_~head~0#1.base|))))))))))) (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (= |c_ULTIMATE.start_dll_create_~head~0#1.base| (select (let ((.cse66 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (select .cse66 (select (select .cse66 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ 4 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5) v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) (= (select .cse67 .cse8) 0) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int)) (v_prenex_3 (Array Int Int))) (let ((.cse73 (select (let ((.cse75 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_3))) (select .cse75 (select (select .cse75 v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_2) v_prenex_1) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) (or (forall ((v_prenex_4 Int) (v_prenex_5 (Array Int Int)) (v_prenex_6 (Array Int Int))) (let ((.cse70 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_5))) (let ((.cse69 (select (select .cse70 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse74 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_prenex_6))) (let ((.cse71 (select (select .cse74 v_prenex_4) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse72 (+ 4 .cse69))) (let ((.cse68 (select (select .cse74 .cse71) .cse72))) (or (= 0 .cse68) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| .cse69)) (< (select (select .cse70 .cse71) .cse72) .cse15) (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse71)) (= .cse73 .cse68))))))) (= .cse73 |c_ULTIMATE.start_dll_create_~head~0#1.base|))))))) is different from false [2022-11-22 00:15:45,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:45,827 INFO L93 Difference]: Finished difference Result 227 states and 239 transitions. [2022-11-22 00:15:45,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-11-22 00:15:45,828 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 38 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-22 00:15:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:45,829 INFO L225 Difference]: With dead ends: 227 [2022-11-22 00:15:45,829 INFO L226 Difference]: Without dead ends: 227 [2022-11-22 00:15:45,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 1392 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=643, Invalid=5512, Unknown=23, NotChecked=628, Total=6806 [2022-11-22 00:15:45,831 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 765 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 844 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 316 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:45,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 844 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 1173 Invalid, 0 Unknown, 316 Unchecked, 1.6s Time] [2022-11-22 00:15:45,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-22 00:15:45,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 66. [2022-11-22 00:15:45,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 65 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:45,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2022-11-22 00:15:45,837 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 22 [2022-11-22 00:15:45,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:45,837 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2022-11-22 00:15:45,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 1.7567567567567568) internal successors, (65), 38 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:45,837 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2022-11-22 00:15:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-22 00:15:45,838 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:45,838 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:45,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 00:15:46,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:15:46,045 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:46,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:46,045 INFO L85 PathProgramCache]: Analyzing trace with hash 2101215349, now seen corresponding path program 1 times [2022-11-22 00:15:46,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:46,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573545527] [2022-11-22 00:15:46,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:46,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:46,207 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:15:46,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:46,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573545527] [2022-11-22 00:15:46,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573545527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:46,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:46,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 00:15:46,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910600518] [2022-11-22 00:15:46,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:46,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 00:15:46,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:46,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 00:15:46,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 00:15:46,211 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:46,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:46,342 INFO L93 Difference]: Finished difference Result 75 states and 83 transitions. [2022-11-22 00:15:46,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:15:46,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-22 00:15:46,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:46,343 INFO L225 Difference]: With dead ends: 75 [2022-11-22 00:15:46,343 INFO L226 Difference]: Without dead ends: 75 [2022-11-22 00:15:46,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-22 00:15:46,344 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 125 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:46,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 73 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:15:46,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-22 00:15:46,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 68. [2022-11-22 00:15:46,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 56 states have (on average 1.375) internal successors, (77), 67 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:46,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2022-11-22 00:15:46,348 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 23 [2022-11-22 00:15:46,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:46,348 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2022-11-22 00:15:46,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 7 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2022-11-22 00:15:46,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 00:15:46,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:46,349 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:46,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 00:15:46,349 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:46,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:46,350 INFO L85 PathProgramCache]: Analyzing trace with hash 713166488, now seen corresponding path program 1 times [2022-11-22 00:15:46,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:46,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799626890] [2022-11-22 00:15:46,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:46,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:46,532 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:15:46,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:46,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799626890] [2022-11-22 00:15:46,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799626890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:46,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:46,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 00:15:46,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174650595] [2022-11-22 00:15:46,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:46,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 00:15:46,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:46,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 00:15:46,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 00:15:46,535 INFO L87 Difference]: Start difference. First operand 68 states and 77 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:46,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:46,701 INFO L93 Difference]: Finished difference Result 76 states and 84 transitions. [2022-11-22 00:15:46,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:15:46,702 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-22 00:15:46,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:46,702 INFO L225 Difference]: With dead ends: 76 [2022-11-22 00:15:46,702 INFO L226 Difference]: Without dead ends: 76 [2022-11-22 00:15:46,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-11-22 00:15:46,703 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 117 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:46,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 56 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:15:46,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-22 00:15:46,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2022-11-22 00:15:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 59 states have (on average 1.3559322033898304) internal successors, (80), 70 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:46,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2022-11-22 00:15:46,707 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 24 [2022-11-22 00:15:46,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:46,707 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2022-11-22 00:15:46,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:46,708 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2022-11-22 00:15:46,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-22 00:15:46,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:46,708 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:46,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 00:15:46,709 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:46,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:46,709 INFO L85 PathProgramCache]: Analyzing trace with hash 628524500, now seen corresponding path program 1 times [2022-11-22 00:15:46,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:46,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853640107] [2022-11-22 00:15:46,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:46,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:47,209 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:15:47,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:47,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853640107] [2022-11-22 00:15:47,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853640107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:47,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:47,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 00:15:47,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680616001] [2022-11-22 00:15:47,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:47,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 00:15:47,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:47,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 00:15:47,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-22 00:15:47,211 INFO L87 Difference]: Start difference. First operand 71 states and 80 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:47,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:47,473 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2022-11-22 00:15:47,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:15:47,474 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-22 00:15:47,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:47,475 INFO L225 Difference]: With dead ends: 77 [2022-11-22 00:15:47,475 INFO L226 Difference]: Without dead ends: 77 [2022-11-22 00:15:47,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-11-22 00:15:47,476 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 119 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:47,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 77 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:15:47,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-22 00:15:47,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 69. [2022-11-22 00:15:47,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 57 states have (on average 1.368421052631579) internal successors, (78), 68 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:47,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2022-11-22 00:15:47,479 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 25 [2022-11-22 00:15:47,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:47,479 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2022-11-22 00:15:47,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:47,479 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2022-11-22 00:15:47,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-22 00:15:47,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:47,480 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:47,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 00:15:47,481 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:47,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash 633324759, now seen corresponding path program 1 times [2022-11-22 00:15:47,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:47,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528925964] [2022-11-22 00:15:47,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:47,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 00:15:47,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:47,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528925964] [2022-11-22 00:15:47,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528925964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:47,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:47,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 00:15:47,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646749964] [2022-11-22 00:15:47,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:47,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:15:47,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:47,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:15:47,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:15:47,570 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:47,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:47,652 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2022-11-22 00:15:47,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:15:47,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-22 00:15:47,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:47,653 INFO L225 Difference]: With dead ends: 78 [2022-11-22 00:15:47,653 INFO L226 Difference]: Without dead ends: 78 [2022-11-22 00:15:47,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:15:47,654 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 12 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:47,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 62 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:15:47,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-22 00:15:47,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2022-11-22 00:15:47,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 64 states have (on average 1.359375) internal successors, (87), 75 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:47,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2022-11-22 00:15:47,658 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 25 [2022-11-22 00:15:47,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:47,658 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2022-11-22 00:15:47,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:47,658 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2022-11-22 00:15:47,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 00:15:47,666 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:47,666 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:47,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 00:15:47,667 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:47,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:47,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1990576869, now seen corresponding path program 1 times [2022-11-22 00:15:47,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:47,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397871198] [2022-11-22 00:15:47,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:47,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:48,012 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-22 00:15:48,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:48,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397871198] [2022-11-22 00:15:48,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397871198] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:48,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:48,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 00:15:48,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318296438] [2022-11-22 00:15:48,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:48,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 00:15:48,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:48,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 00:15:48,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-22 00:15:48,014 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:48,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:48,317 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2022-11-22 00:15:48,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 00:15:48,317 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-22 00:15:48,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:48,318 INFO L225 Difference]: With dead ends: 80 [2022-11-22 00:15:48,318 INFO L226 Difference]: Without dead ends: 80 [2022-11-22 00:15:48,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-11-22 00:15:48,319 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 62 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:48,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 90 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:15:48,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-22 00:15:48,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 73. [2022-11-22 00:15:48,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 72 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:48,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2022-11-22 00:15:48,322 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 26 [2022-11-22 00:15:48,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:48,323 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2022-11-22 00:15:48,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:48,323 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2022-11-22 00:15:48,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 00:15:48,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:48,324 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:48,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 00:15:48,325 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:48,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:48,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1841768837, now seen corresponding path program 1 times [2022-11-22 00:15:48,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:48,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501757711] [2022-11-22 00:15:48,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:48,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:15:48,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:48,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501757711] [2022-11-22 00:15:48,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501757711] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:15:48,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417585503] [2022-11-22 00:15:48,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:48,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:15:48,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:15:48,555 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:15:48,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 00:15:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:48,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-22 00:15:48,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:15:48,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:48,871 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 14 [2022-11-22 00:15:48,875 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 00:15:48,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:15:48,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417585503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:48,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:15:48,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-22 00:15:48,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685007322] [2022-11-22 00:15:48,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:48,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 00:15:48,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:48,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 00:15:48,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-22 00:15:48,877 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:48,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:48,987 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2022-11-22 00:15:48,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 00:15:48,988 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-22 00:15:48,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:48,988 INFO L225 Difference]: With dead ends: 72 [2022-11-22 00:15:48,988 INFO L226 Difference]: Without dead ends: 72 [2022-11-22 00:15:48,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-11-22 00:15:48,989 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 53 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:48,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 42 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:15:48,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-11-22 00:15:48,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-11-22 00:15:48,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 61 states have (on average 1.360655737704918) internal successors, (83), 71 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2022-11-22 00:15:48,993 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 26 [2022-11-22 00:15:48,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:48,993 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2022-11-22 00:15:48,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:48,993 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2022-11-22 00:15:48,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 00:15:48,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:48,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:49,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 00:15:49,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:15:49,195 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:49,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:49,195 INFO L85 PathProgramCache]: Analyzing trace with hash -413296800, now seen corresponding path program 1 times [2022-11-22 00:15:49,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:49,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129032632] [2022-11-22 00:15:49,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:49,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:49,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:49,275 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 00:15:49,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:49,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129032632] [2022-11-22 00:15:49,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129032632] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:49,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:15:49,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 00:15:49,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762265788] [2022-11-22 00:15:49,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:49,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:15:49,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:49,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:15:49,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:15:49,277 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:49,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:49,326 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2022-11-22 00:15:49,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:15:49,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-22 00:15:49,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:49,327 INFO L225 Difference]: With dead ends: 70 [2022-11-22 00:15:49,327 INFO L226 Difference]: Without dead ends: 70 [2022-11-22 00:15:49,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 00:15:49,329 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 42 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:49,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 20 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:15:49,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-22 00:15:49,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-22 00:15:49,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 61 states have (on average 1.3278688524590163) internal successors, (81), 69 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:49,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 81 transitions. [2022-11-22 00:15:49,339 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 81 transitions. Word has length 28 [2022-11-22 00:15:49,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:49,339 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 81 transitions. [2022-11-22 00:15:49,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:49,340 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2022-11-22 00:15:49,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 00:15:49,341 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:49,341 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:49,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 00:15:49,342 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:49,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:49,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1818274967, now seen corresponding path program 2 times [2022-11-22 00:15:49,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:49,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220035072] [2022-11-22 00:15:49,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:49,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:15:49,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:49,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220035072] [2022-11-22 00:15:49,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220035072] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:15:49,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268433988] [2022-11-22 00:15:49,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 00:15:49,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:15:49,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:15:49,435 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:15:49,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 00:15:49,611 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-22 00:15:49,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:15:49,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-22 00:15:49,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:15:49,658 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 13 treesize of output 9 [2022-11-22 00:15:49,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:49,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-22 00:15:49,696 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 23 treesize of output 22 [2022-11-22 00:15:49,857 INFO L321 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-11-22 00:15:49,857 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 69 treesize of output 36 [2022-11-22 00:15:49,870 INFO L321 Elim1Store]: treesize reduction 3, result has 75.0 percent of original size [2022-11-22 00:15:49,870 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 27 treesize of output 21 [2022-11-22 00:15:49,895 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-22 00:15:49,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:15:49,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268433988] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:49,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:15:49,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 12 [2022-11-22 00:15:49,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490867931] [2022-11-22 00:15:49,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:49,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 00:15:49,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:49,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 00:15:49,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-22 00:15:49,897 INFO L87 Difference]: Start difference. First operand 70 states and 81 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:50,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:50,465 INFO L93 Difference]: Finished difference Result 125 states and 137 transitions. [2022-11-22 00:15:50,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 00:15:50,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-22 00:15:50,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:50,467 INFO L225 Difference]: With dead ends: 125 [2022-11-22 00:15:50,467 INFO L226 Difference]: Without dead ends: 125 [2022-11-22 00:15:50,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-11-22 00:15:50,467 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 137 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:50,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 224 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:15:50,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-11-22 00:15:50,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 76. [2022-11-22 00:15:50,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 75 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:50,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2022-11-22 00:15:50,471 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 29 [2022-11-22 00:15:50,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:50,471 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2022-11-22 00:15:50,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:15:50,471 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2022-11-22 00:15:50,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 00:15:50,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:50,472 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:50,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 00:15:50,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:15:50,679 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:15:50,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:50,679 INFO L85 PathProgramCache]: Analyzing trace with hash 72643334, now seen corresponding path program 1 times [2022-11-22 00:15:50,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:50,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203502321] [2022-11-22 00:15:50,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:50,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:15:52,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:52,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203502321] [2022-11-22 00:15:52,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203502321] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:15:52,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734365205] [2022-11-22 00:15:52,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:52,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:15:52,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:15:52,274 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:15:52,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 00:15:52,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:52,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-22 00:15:52,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:15:52,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:15:52,600 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 00:15:52,601 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 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-22 00:15:52,670 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 13 treesize of output 9 [2022-11-22 00:15:52,722 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 [2022-11-22 00:15:52,790 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:15:52,791 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 27 treesize of output 28 [2022-11-22 00:15:53,068 INFO L321 Elim1Store]: treesize reduction 4, result has 88.6 percent of original size [2022-11-22 00:15:53,069 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 5 case distinctions, treesize of input 46 treesize of output 48 [2022-11-22 00:15:53,198 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 [2022-11-22 00:15:53,229 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:15:53,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:15:53,356 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 27 treesize of output 19 [2022-11-22 00:15:53,543 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1353 (Array Int Int)) (|ULTIMATE.start_main_~#s~0#1.base| Int)) (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1353))) (let ((.cse1 (select (select .cse0 |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= (select (select .cse0 .cse1) 4) 0)) (not (= .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)))))) is different from false [2022-11-22 00:15:53,576 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1351 Int) (v_ArrVal_1353 (Array Int Int)) (|ULTIMATE.start_main_~#s~0#1.base| Int)) (let ((.cse0 (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|) v_ArrVal_1351)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1353))) (let ((.cse1 (select (select .cse0 |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= (select (select .cse0 .cse1) 4) 0)) (not (= .cse1 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)))))) is different from false [2022-11-22 00:15:53,587 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:53,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 50 [2022-11-22 00:15:53,633 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:53,633 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 111 treesize of output 154 [2022-11-22 00:15:53,650 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:53,650 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 111 treesize of output 103 [2022-11-22 00:15:54,707 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-22 00:15:54,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734365205] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:15:54,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [58315802] [2022-11-22 00:15:54,709 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-22 00:15:54,709 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:15:54,709 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:15:54,709 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:15:54,710 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:15:54,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:15:54,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,761 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:15:54,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:54,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:54,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:15:54,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:15:54,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:54,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:54,878 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 22 [2022-11-22 00:15:54,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:15:54,905 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 22 [2022-11-22 00:15:54,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:54,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-22 00:15:55,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:15:55,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:55,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:55,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:55,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:55,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:55,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:55,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,223 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:15:55,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,246 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:15:55,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:15:55,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:15:55,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:55,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,625 INFO L321 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-22 00:15:55,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 51 [2022-11-22 00:15:55,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:15:55,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:55,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:15:55,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:55,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:55,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:55,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:55,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,860 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:15:55,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,885 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:15:55,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:15:55,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:15:55,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:55,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:15:56,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:15:56,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:15:56,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:56,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:15:56,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:56,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:56,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:56,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 00:15:56,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:56,121 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 22 [2022-11-22 00:15:56,130 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 22 [2022-11-22 00:15:56,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:56,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 00:15:56,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:56,176 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:15:56,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:56,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:56,202 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 00:15:56,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2022-11-22 00:15:56,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:56,218 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 27 treesize of output 11 [2022-11-22 00:15:56,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:15:56,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:15:56,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:56,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:15:56,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:56,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:56,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:56,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:56,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 00:15:56,371 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 22 [2022-11-22 00:15:56,380 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 22 [2022-11-22 00:15:56,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:56,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 00:15:56,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:56,440 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-22 00:15:56,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:15:56,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:56,452 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 27 treesize of output 11 [2022-11-22 00:15:56,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:56,477 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 00:15:56,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 38 [2022-11-22 00:15:56,644 INFO L321 Elim1Store]: treesize reduction 27, result has 32.5 percent of original size [2022-11-22 00:15:56,644 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 25 treesize of output 29 [2022-11-22 00:15:56,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:56,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:56,695 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:15:56,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 62 [2022-11-22 00:15:56,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:56,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 45 [2022-11-22 00:15:56,976 INFO L321 Elim1Store]: treesize reduction 36, result has 58.6 percent of original size [2022-11-22 00:15:56,976 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 38 treesize of output 77 [2022-11-22 00:15:57,037 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:57,109 INFO L321 Elim1Store]: treesize reduction 76, result has 36.1 percent of original size [2022-11-22 00:15:57,110 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 117 [2022-11-22 00:15:57,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:57,153 INFO L321 Elim1Store]: treesize reduction 57, result has 13.6 percent of original size [2022-11-22 00:15:57,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 79 [2022-11-22 00:15:57,669 INFO L321 Elim1Store]: treesize reduction 36, result has 58.6 percent of original size [2022-11-22 00:15:57,669 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 38 treesize of output 77 [2022-11-22 00:15:57,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:57,802 INFO L321 Elim1Store]: treesize reduction 76, result has 36.1 percent of original size [2022-11-22 00:15:57,802 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 4 new quantified variables, introduced 5 case distinctions, treesize of input 108 treesize of output 117 [2022-11-22 00:15:57,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:57,837 INFO L321 Elim1Store]: treesize reduction 57, result has 13.6 percent of original size [2022-11-22 00:15:57,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 79 [2022-11-22 00:15:58,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:15:58,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:15:58,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:58,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:15:58,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:58,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:58,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:15:58,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:58,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:58,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:58,339 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:15:58,340 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:15:58,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:58,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:58,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:58,420 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:15:58,421 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:15:58,452 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 23 treesize of output 22 [2022-11-22 00:15:58,464 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 23 treesize of output 22 [2022-11-22 00:15:58,519 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:16:03,885 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4416#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_remove_first_~head#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_dll_remove_first_#t~mem6#1.base|) 1)) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_remove_first_~head#1.base|) (<= 0 |ULTIMATE.start_dll_remove_first_#in~head#1.offset|) (<= 0 |ULTIMATE.start_dll_remove_first_#in~head#1.base|) (<= |ULTIMATE.start_dll_remove_first_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_remove_first_~head#1.offset|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-22 00:16:03,886 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:16:03,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:16:03,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 48 [2022-11-22 00:16:03,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838417081] [2022-11-22 00:16:03,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:16:03,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-11-22 00:16:03,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:03,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-11-22 00:16:03,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=3635, Unknown=2, NotChecked=246, Total=4160 [2022-11-22 00:16:03,889 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand has 48 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 48 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:06,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:06,138 INFO L93 Difference]: Finished difference Result 80 states and 84 transitions. [2022-11-22 00:16:06,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-22 00:16:06,140 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 48 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-22 00:16:06,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:06,140 INFO L225 Difference]: With dead ends: 80 [2022-11-22 00:16:06,140 INFO L226 Difference]: Without dead ends: 78 [2022-11-22 00:16:06,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 83 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2022 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=702, Invalid=6110, Unknown=2, NotChecked=326, Total=7140 [2022-11-22 00:16:06,144 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 287 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 79 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:06,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 312 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 955 Invalid, 0 Unknown, 79 Unchecked, 0.7s Time] [2022-11-22 00:16:06,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-22 00:16:06,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 65. [2022-11-22 00:16:06,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 56 states have (on average 1.2678571428571428) internal successors, (71), 64 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:06,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 71 transitions. [2022-11-22 00:16:06,148 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 71 transitions. Word has length 29 [2022-11-22 00:16:06,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:16:06,148 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 71 transitions. [2022-11-22 00:16:06,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 48 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:06,148 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 71 transitions. [2022-11-22 00:16:06,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-22 00:16:06,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:06,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:16:06,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-22 00:16:06,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:16:06,356 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:16:06,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:06,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1282018004, now seen corresponding path program 3 times [2022-11-22 00:16:06,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:06,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687725379] [2022-11-22 00:16:06,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:06,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:06,471 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:06,472 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:16:06,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687725379] [2022-11-22 00:16:06,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687725379] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:16:06,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125022946] [2022-11-22 00:16:06,472 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 00:16:06,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:16:06,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:16:06,474 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:16:06,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 00:16:06,726 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 00:16:06,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 00:16:06,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 00:16:06,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:16:06,761 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:06,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:16:06,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125022946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:16:06,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:16:06,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-22 00:16:06,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212150886] [2022-11-22 00:16:06,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:16:06,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:16:06,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:06,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:16:06,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:16:06,765 INFO L87 Difference]: Start difference. First operand 65 states and 71 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:06,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:06,783 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2022-11-22 00:16:06,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:16:06,784 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-22 00:16:06,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:06,784 INFO L225 Difference]: With dead ends: 52 [2022-11-22 00:16:06,784 INFO L226 Difference]: Without dead ends: 52 [2022-11-22 00:16:06,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:16:06,790 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 52 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:06,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 48 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:16:06,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-22 00:16:06,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-22 00:16:06,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 51 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:06,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2022-11-22 00:16:06,793 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 30 [2022-11-22 00:16:06,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:16:06,794 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2022-11-22 00:16:06,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:06,794 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2022-11-22 00:16:06,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-22 00:16:06,795 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:06,795 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:16:06,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-11-22 00:16:07,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:16:07,002 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:16:07,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:07,003 INFO L85 PathProgramCache]: Analyzing trace with hash 955588938, now seen corresponding path program 1 times [2022-11-22 00:16:07,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:07,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712564817] [2022-11-22 00:16:07,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:07,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:08,082 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:08,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:16:08,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712564817] [2022-11-22 00:16:08,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712564817] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:16:08,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030195499] [2022-11-22 00:16:08,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:08,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:16:08,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:16:08,085 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:16:08,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 00:16:08,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:08,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-22 00:16:08,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:16:08,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:16:08,383 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 00:16:08,384 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 11 [2022-11-22 00:16:08,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:08,478 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 22 [2022-11-22 00:16:08,504 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 00:16:08,505 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 23 treesize of output 26 [2022-11-22 00:16:08,693 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 00:16:08,857 INFO L321 Elim1Store]: treesize reduction 64, result has 22.0 percent of original size [2022-11-22 00:16:08,858 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 5 new quantified variables, introduced 9 case distinctions, treesize of input 34 treesize of output 46 [2022-11-22 00:16:08,868 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 22 treesize of output 16 [2022-11-22 00:16:09,000 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 [2022-11-22 00:16:09,216 INFO L321 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-22 00:16:09,216 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 16 treesize of output 26 [2022-11-22 00:16:09,333 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:16:09,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 59 [2022-11-22 00:16:09,677 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:09,677 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 105 treesize of output 77 [2022-11-22 00:16:09,808 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:09,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:16:10,080 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 [2022-11-22 00:16:10,163 INFO L321 Elim1Store]: treesize reduction 13, result has 78.7 percent of original size [2022-11-22 00:16:10,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 99 [2022-11-22 00:16:10,735 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 72 treesize of output 56 [2022-11-22 00:16:10,848 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1631 (Array Int Int)) (|ULTIMATE.start_main_~#s~0#1.base| Int)) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| .cse0) (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_1631) |ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0)) (not (= .cse1 .cse2)) (= .cse2 |ULTIMATE.start_main_~#s~0#1.base|)))))) is different from false [2022-11-22 00:16:11,234 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:11,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 222 treesize of output 107 [2022-11-22 00:16:11,276 INFO L321 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2022-11-22 00:16:11,276 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 2052 treesize of output 1508 [2022-11-22 00:16:11,344 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 1152 treesize of output 1120 [2022-11-22 00:16:11,365 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:11,365 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 1150 treesize of output 980 [2022-11-22 00:16:11,962 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-22 00:16:11,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030195499] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:16:11,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1159759408] [2022-11-22 00:16:11,966 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-22 00:16:11,966 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:16:11,966 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:16:11,967 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:16:11,967 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:16:11,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:11,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:11,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:16:12,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:16:12,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:16:12,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:12,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:12,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:12,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:12,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:16:12,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:16:12,159 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 22 [2022-11-22 00:16:12,171 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 22 [2022-11-22 00:16:12,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2022-11-22 00:16:12,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:16:12,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:16:12,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:16:12,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:16:12,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:12,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:16:12,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,422 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 00:16:12,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:12,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,465 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 00:16:12,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:12,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 46 treesize of output 47 [2022-11-22 00:16:12,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:12,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,557 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:12,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 46 treesize of output 47 [2022-11-22 00:16:12,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-22 00:16:12,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:16:12,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:16:12,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:16:12,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:12,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:16:12,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:16:12,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:12,987 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:16:13,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,006 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:16:13,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:13,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:16:13,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:13,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:16:13,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:13,426 INFO L321 Elim1Store]: treesize reduction 46, result has 49.5 percent of original size [2022-11-22 00:16:13,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 79 treesize of output 92 [2022-11-22 00:16:13,481 INFO L321 Elim1Store]: treesize reduction 58, result has 30.1 percent of original size [2022-11-22 00:16:13,481 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 5 case distinctions, treesize of input 81 treesize of output 76 [2022-11-22 00:16:13,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 00:16:13,871 INFO L321 Elim1Store]: treesize reduction 14, result has 65.0 percent of original size [2022-11-22 00:16:13,872 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 33 treesize of output 49 [2022-11-22 00:16:14,085 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 28 treesize of output 16 [2022-11-22 00:16:14,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:14,107 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 19 treesize of output 11 [2022-11-22 00:16:14,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:14,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:15,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 00:16:15,085 INFO L321 Elim1Store]: treesize reduction 36, result has 58.6 percent of original size [2022-11-22 00:16:15,085 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 38 treesize of output 77 [2022-11-22 00:16:15,144 INFO L321 Elim1Store]: treesize reduction 35, result has 35.2 percent of original size [2022-11-22 00:16:15,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2022-11-22 00:16:15,160 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:15,209 INFO L321 Elim1Store]: treesize reduction 20, result has 63.0 percent of original size [2022-11-22 00:16:15,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 61 [2022-11-22 00:16:15,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:15,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:15,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 00:16:15,650 INFO L321 Elim1Store]: treesize reduction 36, result has 58.6 percent of original size [2022-11-22 00:16:15,650 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 38 treesize of output 77 [2022-11-22 00:16:15,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:15,750 INFO L321 Elim1Store]: treesize reduction 20, result has 63.0 percent of original size [2022-11-22 00:16:15,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 61 [2022-11-22 00:16:15,806 INFO L321 Elim1Store]: treesize reduction 35, result has 35.2 percent of original size [2022-11-22 00:16:15,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2022-11-22 00:16:16,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:16:16,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:16:16,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:16:16,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:16,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:16,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:16,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:16,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:16,242 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:16:16,242 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:16:16,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:16,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:16,331 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 23 treesize of output 22 [2022-11-22 00:16:16,342 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 23 treesize of output 22 [2022-11-22 00:16:16,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:16,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:16,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:16,365 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:16:16,365 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:16:16,425 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:16:22,723 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5047#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_remove_first_~head#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_dll_remove_first_#t~mem6#1.base|) 1)) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_remove_first_~head#1.base|) (<= 0 |ULTIMATE.start_dll_remove_first_#in~head#1.offset|) (<= 0 |ULTIMATE.start_dll_remove_first_#in~head#1.base|) (<= |ULTIMATE.start_dll_remove_first_#in~head#1.offset| 0) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 0 |ULTIMATE.start_dll_remove_first_~head#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|))' at error location [2022-11-22 00:16:22,724 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:16:22,724 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:16:22,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 19] total 53 [2022-11-22 00:16:22,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238935429] [2022-11-22 00:16:22,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:16:22,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-11-22 00:16:22,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:22,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-11-22 00:16:22,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=4471, Unknown=54, NotChecked=136, Total=4970 [2022-11-22 00:16:22,727 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand has 54 states, 53 states have (on average 1.679245283018868) internal successors, (89), 54 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:26,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:16:26,218 INFO L93 Difference]: Finished difference Result 74 states and 78 transitions. [2022-11-22 00:16:26,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-22 00:16:26,218 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 1.679245283018868) internal successors, (89), 54 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-22 00:16:26,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:16:26,219 INFO L225 Difference]: With dead ends: 74 [2022-11-22 00:16:26,219 INFO L226 Difference]: Without dead ends: 74 [2022-11-22 00:16:26,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 88 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1732 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=703, Invalid=7074, Unknown=59, NotChecked=174, Total=8010 [2022-11-22 00:16:26,223 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 416 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:16:26,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 260 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1029 Invalid, 0 Unknown, 67 Unchecked, 1.0s Time] [2022-11-22 00:16:26,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-22 00:16:26,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 57. [2022-11-22 00:16:26,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 56 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:26,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2022-11-22 00:16:26,226 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 30 [2022-11-22 00:16:26,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:16:26,226 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2022-11-22 00:16:26,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 1.679245283018868) internal successors, (89), 54 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:26,227 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2022-11-22 00:16:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-22 00:16:26,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:16:26,227 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:16:26,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-22 00:16:26,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-22 00:16:26,434 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:16:26,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:16:26,435 INFO L85 PathProgramCache]: Analyzing trace with hash 955588939, now seen corresponding path program 1 times [2022-11-22 00:16:26,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:16:26,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558305604] [2022-11-22 00:16:26,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:26,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:16:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:27,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:16:27,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558305604] [2022-11-22 00:16:27,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558305604] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:16:27,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121250086] [2022-11-22 00:16:27,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:16:27,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:16:27,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:16:27,454 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:16:27,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-22 00:16:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:16:27,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 84 conjunts are in the unsatisfiable core [2022-11-22 00:16:27,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:16:27,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:16:27,798 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 00:16:27,798 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 11 [2022-11-22 00:16:27,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:27,913 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 22 [2022-11-22 00:16:27,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:27,991 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 16 treesize of output 18 [2022-11-22 00:16:27,997 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 16 treesize of output 18 [2022-11-22 00:16:28,450 INFO L321 Elim1Store]: treesize reduction 52, result has 36.6 percent of original size [2022-11-22 00:16:28,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 63 treesize of output 85 [2022-11-22 00:16:28,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:28,506 INFO L321 Elim1Store]: treesize reduction 24, result has 57.9 percent of original size [2022-11-22 00:16:28,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 66 [2022-11-22 00:16:28,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:28,540 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 15 treesize of output 7 [2022-11-22 00:16:28,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:28,584 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 15 treesize of output 7 [2022-11-22 00:16:28,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:28,633 INFO L321 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2022-11-22 00:16:28,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 92 [2022-11-22 00:16:28,692 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 85 treesize of output 77 [2022-11-22 00:16:28,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:28,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:28,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 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 [2022-11-22 00:16:28,803 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 104 treesize of output 80 [2022-11-22 00:16:28,836 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 47 treesize of output 37 [2022-11-22 00:16:28,858 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 66 treesize of output 54 [2022-11-22 00:16:29,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:29,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:29,548 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:29,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 80 [2022-11-22 00:16:29,566 INFO L321 Elim1Store]: treesize reduction 49, result has 5.8 percent of original size [2022-11-22 00:16:29,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 98 treesize of output 87 [2022-11-22 00:16:29,691 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 23 treesize of output 15 [2022-11-22 00:16:29,693 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 26 treesize of output 14 [2022-11-22 00:16:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:16:29,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:16:30,108 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:30,109 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 76 treesize of output 80 [2022-11-22 00:16:31,141 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1765 (Array Int Int)) (v_ArrVal_1764 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse3 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1765))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse2 (+ .cse3 4))) (or (not (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| .cse0)) (<= 0 (+ (select (select .cse1 .cse0) .cse2) 4)) (not (= .cse3 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse1 (select (select .cse4 .cse0) .cse2) v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))) is different from false [2022-11-22 00:16:31,170 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:31,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 157 treesize of output 127 [2022-11-22 00:16:31,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:31,215 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:31,215 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 364 treesize of output 379 [2022-11-22 00:16:31,234 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:31,235 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 282 treesize of output 255 [2022-11-22 00:16:39,308 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse8 (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))) (let ((.cse45 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse169 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse170 (select (select .cse169 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= (select (select (store .cse169 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse169 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse170 4)) 4)) (not (= .cse170 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))) (.cse46 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse166 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse168 (select (select .cse166 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse167 (+ .cse168 4))) (or (not (= (select (select (store .cse166 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse166 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse167) 4)) (not (= .cse168 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse167 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse0 (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse22 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse163 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse165 (select (select .cse163 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse164 (+ .cse165 4))) (or (<= 0 (+ (select (select .cse163 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse164) 4)) (not (= .cse165 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse164 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse163 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))) (.cse36 (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse118 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1762 Int)) (let ((.cse160 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse162 (select (select .cse160 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse161 (+ .cse162 4))) (or (<= 0 (+ (select (select .cse160 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse161) 4)) (not (= .cse162 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse160 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse161 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse18 (not .cse0)) (.cse130 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1052 Int)) (let ((.cse157 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse159 (select (select .cse157 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse158 (+ .cse159 4))) (or (<= 0 (+ (select (select .cse157 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse158) 4)) (not (= .cse159 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse158 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse157 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))) (.cse28 (and .cse45 .cse46))) (let ((.cse40 (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse29 (forall ((v_arrayElimIndex_42 Int)) (or (= v_arrayElimIndex_42 |c_ULTIMATE.start_main_~#s~0#1.base|) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse154 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse156 (select (select .cse154 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse155 (+ .cse156 4))) (or (<= 0 (+ (select (select .cse154 v_arrayElimIndex_42) .cse155) 4)) (<= 0 (+ (select (select .cse154 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse155) 4)) (not (= .cse156 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse154 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))))) (.cse20 (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse151 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse153 (select (select .cse151 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse152 (+ .cse153 4))) (or (not (= (select (select (store .cse151 v_arrayElimIndex_42 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse151 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse152) 4)) (not (= .cse153 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse152 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse1 (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse148 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse150 (select (select .cse148 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse149 (+ .cse150 4))) (or (<= 0 (+ (select (select .cse148 v_arrayElimIndex_42) .cse149) 4)) (<= 0 (+ (select (select .cse148 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse149) 4)) (not (= .cse150 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse149 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse148 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))) (.cse30 (forall ((v_arrayElimIndex_42 Int)) (or (= v_arrayElimIndex_42 |c_ULTIMATE.start_main_~#s~0#1.base|) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse145 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse147 (select (select .cse145 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse146 (+ .cse147 4))) (or (<= 0 (+ (select (select .cse145 v_arrayElimIndex_42) .cse146) 4)) (<= 0 (+ (select (select .cse145 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse146) 4)) (not (= .cse147 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse146 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse145 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))))) (.cse31 (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse142 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse144 (select (select .cse142 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse143 (+ .cse144 4))) (or (not (= (select (select (store .cse142 v_arrayElimIndex_42 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse142 v_arrayElimIndex_42) .cse143) 4)) (<= 0 (+ (select (select .cse142 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse143) 4)) (not (= .cse144 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))))) (.cse24 (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse140 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse141 (select (select .cse140 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= (select (select (store .cse140 v_arrayElimIndex_42 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse140 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse141 4)) 4)) (not (= .cse141 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))) (.cse32 (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse137 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse139 (select (select .cse137 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse138 (+ .cse139 4))) (or (not (= (select (select (store .cse137 v_arrayElimIndex_42 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse137 v_arrayElimIndex_42) .cse138) 4)) (<= 0 (+ (select (select .cse137 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse138) 4)) (not (= .cse139 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse138 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse33 (forall ((v_arrayElimIndex_42 Int)) (or (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse134 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse136 (select (select .cse134 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse135 (+ .cse136 4))) (or (<= 0 (+ (select (select .cse134 v_arrayElimIndex_42) .cse135) 4)) (<= 0 (+ (select (select .cse134 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse135) 4)) (not (= .cse136 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse135 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse134 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimIndex_42)))) (.cse34 (forall ((v_arrayElimIndex_42 Int)) (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimIndex_42) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse131 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse133 (select (select .cse131 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse132 (+ .cse133 4))) (or (<= 0 (+ (select (select .cse131 v_arrayElimIndex_42) .cse132) 4)) (<= 0 (+ (select (select .cse131 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse132) 4)) (not (= .cse133 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse131 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))))) (.cse37 (or .cse0 .cse28)) (.cse38 (or .cse18 .cse130)) (.cse39 (or (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1052 Int)) (let ((.cse128 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse129 (select (select .cse128 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse128 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse129 4)) 4)) (not (= .cse129 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse128 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))) .cse130) .cse18)) (.cse41 (or .cse0 (and .cse118 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1762 Int)) (let ((.cse124 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse125 (select (select .cse124 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse124 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse125 4)) 4)) (not (= .cse125 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse124 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))) (forall ((v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse126 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse127 (select (select .cse126 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (forall ((v_ArrVal_1767 (Array Int Int))) (not (= (select (select (store .cse126 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))) (<= 0 (+ (select (select .cse126 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse127 4)) 4)) (not (= .cse127 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))))) (.cse42 (or .cse18 (and (forall ((v_arrayElimCell_1052 Int)) (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimCell_1052) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse119 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse120 (select (select .cse119 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse119 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse120 4)) 4)) (not (= .cse120 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse119 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))) (forall ((v_arrayElimCell_1052 Int)) (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimCell_1052) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse121 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse123 (select (select .cse121 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse122 (+ .cse123 4))) (or (<= 0 (+ (select (select .cse121 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse122) 4)) (not (= .cse123 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse122 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse121 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))))))) (.cse43 (or .cse0 .cse118)) (.cse35 (not .cse36)) (.cse2 (or .cse0 .cse22)) (.cse3 (or .cse18 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1053 Int)) (let ((.cse115 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse117 (select (select .cse115 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse116 (+ .cse117 4))) (or (<= 0 (+ (select (select .cse115 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse116) 4)) (not (= .cse117 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse115 v_arrayElimCell_1053 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse116 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))) (.cse21 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse113 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse114 (select (select .cse113 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse113 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse114 4)) 4)) (not (= .cse114 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse113 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))) (.cse19 (forall ((v_ArrVal_1767 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse110 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse112 (select (select .cse110 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse111 (+ .cse112 4))) (or (<= 0 (+ (select (select .cse110 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse111) 4)) (not (= .cse112 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse110 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse111 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse23 (forall ((v_ArrVal_1767 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse108 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse109 (select (select .cse108 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse108 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse109 4)) 4)) (not (= .cse109 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse108 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))) (.cse55 (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0)) (.cse44 (= 0 |c_ULTIMATE.start_main_~#s~0#1.base|))) (and (or (and (or (and (or .cse0 .cse1) .cse2 .cse3 (or (and (forall ((v_arrayElimIndex_42 Int)) (or (= v_arrayElimIndex_42 |c_ULTIMATE.start_main_~#s~0#1.base|) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse6 (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse5 (+ .cse6 4))) (or (<= 0 (+ (select (select .cse4 v_arrayElimIndex_42) .cse5) 4)) (not (= (select (select (store .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse5) 4)) (not (= .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))))) (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse9 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse11 (select (select .cse9 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse10 (+ .cse11 4))) (or (<= 0 (+ (select (select .cse9 v_arrayElimIndex_42) .cse10) 4)) (not (= (select (select (store .cse9 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse9 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse10) 4)) (not (= .cse11 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))) (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse12 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse14 (select (select .cse12 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse13 (+ .cse14 4))) (or (<= 0 (+ (select (select .cse12 v_arrayElimIndex_42) .cse13) 4)) (not (= (select (select (store .cse12 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse12 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse13) 4)) (not (= .cse14 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse13 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) (forall ((v_arrayElimIndex_42 Int)) (or (= v_arrayElimIndex_42 |c_ULTIMATE.start_main_~#s~0#1.base|) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse15 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse17 (select (select .cse15 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse16 (+ .cse17 4))) (or (<= 0 (+ (select (select .cse15 v_arrayElimIndex_42) .cse16) 4)) (not (= (select (select (store .cse15 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse15 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse16) 4)) (not (= .cse17 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse16 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))))) .cse18) (or .cse0 (and .cse19 .cse20 .cse21 .cse22 .cse23 .cse24)) (or (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1053 Int)) (let ((.cse25 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse27 (select (select .cse25 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse26 (+ .cse27 4))) (or (<= 0 (+ (select (select .cse25 v_arrayElimIndex_42) .cse26) 4)) (<= 0 (+ (select (select .cse25 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse26) 4)) (not (= .cse27 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse25 v_arrayElimCell_1053 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse26 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) .cse18) (or .cse18 .cse28) (or .cse0 (and .cse29 .cse1 .cse30 .cse31 .cse32 .cse33 .cse34))) .cse35) (or .cse36 (and .cse37 .cse38 .cse39 .cse3 (or .cse40 (and .cse39 .cse41)) .cse42 .cse43))) (= .cse8 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (or .cse40 (and (or (and .cse19 .cse29 .cse20 .cse1 .cse21 .cse22 .cse23 .cse30 .cse31 .cse24 .cse32 .cse33 .cse34) .cse35) (or .cse36 (and .cse37 .cse38 .cse39 .cse3 .cse41 .cse42 .cse43)))) (or .cse35 (let ((.cse54 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse75 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse77 (select (select .cse75 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse76 (+ .cse77 4))) (or (<= 0 (+ (select (select .cse75 0) .cse76) 4)) (<= 0 (+ (select (select .cse75 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse76) 4)) (not (= .cse77 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse76 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse75 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))))) (and (or (and (or .cse28 .cse44) .cse45 .cse46) .cse18) .cse2 (or .cse0 (let ((.cse50 (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse56 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse58 (select (select .cse56 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse57 (+ .cse58 4))) (or (<= 0 (+ (select (select .cse56 0) .cse57) 4)) (<= 0 (+ (select (select .cse56 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse57) 4)) (not (= .cse58 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse56 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))) .cse54))) (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse47 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse49 (select (select .cse47 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse48 (+ .cse49 4))) (or (<= 0 (+ (select (select .cse47 0) .cse48) 4)) (not (= (select (select (store .cse47 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse47 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse48) 4)) (not (= .cse49 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse48 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) (or .cse50 .cse44) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse51 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse53 (select (select .cse51 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse52 (+ .cse53 4))) (or (<= 0 (+ (select (select .cse51 0) .cse52) 4)) (not (= (select (select (store .cse51 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse51 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse52) 4)) (not (= .cse53 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))) .cse54 (or .cse55 .cse50)))) .cse3 (or (let ((.cse59 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse64 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse66 (select (select .cse64 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse65 (+ .cse66 4))) (or (not (= (select (select (store .cse64 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse64 0) .cse65) 4)) (<= 0 (+ (select (select .cse64 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse65) 4)) (not (= .cse66 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))))) (.cse60 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse61 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse63 (select (select .cse61 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse62 (+ .cse63 4))) (or (not (= (select (select (store .cse61 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse61 0) .cse62) 4)) (<= 0 (+ (select (select .cse61 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse62) 4)) (not (= .cse63 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse62 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))) (and .cse59 .cse60 (or (and .cse59 .cse60) .cse44))) .cse18) (or .cse0 (and .cse19 (or .cse55 (and (or .cse44 (and .cse21 .cse22)) .cse21 .cse22)) (or (and .cse19 .cse23) .cse44) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse67 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse68 (select (select .cse67 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= (select (select (store .cse67 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse67 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse68 4)) 4)) (not (= .cse68 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse69 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse71 (select (select .cse69 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse70 (+ .cse71 4))) (or (not (= (select (select (store .cse69 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse69 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse70) 4)) (not (= .cse71 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse70 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))) (or .cse18 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1053 Int)) (let ((.cse72 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse74 (select (select .cse72 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse73 (+ .cse74 4))) (or (<= 0 (+ (select (select .cse72 0) .cse73) 4)) (<= 0 (+ (select (select .cse72 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse73) 4)) (not (= .cse74 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse72 v_arrayElimCell_1053 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse73 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (or .cse0 .cse54)))) (or .cse36 (not .cse55) (let ((.cse78 (= 0 |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse85 (not .cse78)) (.cse91 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1052 Int)) (let ((.cse105 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse107 (select (select .cse105 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse106 (+ .cse107 4))) (or (<= 0 (+ (select (select .cse105 0) .cse106) 4)) (not (= .cse107 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse106 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse105 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))))) (let ((.cse81 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1762 Int)) (let ((.cse102 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse104 (select (select .cse102 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse103 (+ .cse104 4))) (or (<= 0 (+ (select (select .cse102 0) .cse103) 4)) (not (= .cse104 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse102 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse103 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse84 (or .cse85 (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1052 Int)) (let ((.cse100 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse101 (select (select .cse100 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse100 0) (+ .cse101 4)) 4)) (not (= .cse101 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse100 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))) .cse91)))) (and (or (and (or .cse78 (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1762 Int)) (let ((.cse79 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse80 (select (select .cse79 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse79 0) (+ .cse80 4)) 4)) (not (= .cse80 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse79 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))) .cse81 (forall ((v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse82 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse83 (select (select .cse82 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse82 0) (+ .cse83 4)) 4)) (not (= .cse83 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (forall ((v_ArrVal_1767 (Array Int Int))) (not (= (select (select (store .cse82 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))))) .cse84) .cse44) (or .cse78 .cse81) (or .cse85 (and (forall ((v_arrayElimCell_1052 Int)) (or (= v_arrayElimCell_1052 0) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse86 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse88 (select (select .cse86 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse87 (+ .cse88 4))) (or (<= 0 (+ (select (select .cse86 0) .cse87) 4)) (not (= .cse88 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse87 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse86 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))))) (forall ((v_arrayElimCell_1052 Int)) (or (= v_arrayElimCell_1052 0) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse89 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse90 (select (select .cse89 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse89 0) (+ .cse90 4)) 4)) (not (= .cse90 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse89 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))))) (or .cse85 .cse91) (or .cse78 (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse92 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse93 (select (select .cse92 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse92 0) (+ .cse93 4)) 4)) (not (= (select (select (store .cse92 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (not (= .cse93 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse94 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse96 (select (select .cse94 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse95 (+ .cse96 4))) (or (<= 0 (+ (select (select .cse94 0) .cse95) 4)) (not (= (select (select (store .cse94 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (not (= .cse96 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse95 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))) (or (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1053 Int)) (let ((.cse97 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse99 (select (select .cse97 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse98 (+ .cse99 4))) (or (<= 0 (+ (select (select .cse97 0) .cse98) 4)) (not (= .cse99 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse97 v_arrayElimCell_1053 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse98 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) .cse85) .cse84)))))))))) is different from true [2022-11-22 00:16:40,291 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:40,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 79 [2022-11-22 00:16:40,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:40,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:40,299 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 65 treesize of output 43 [2022-11-22 00:16:40,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 6 treesize of output 4 [2022-11-22 00:16:40,315 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 5 [2022-11-22 00:16:40,329 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:40,329 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 79 [2022-11-22 00:16:40,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:40,335 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:40,355 INFO L321 Elim1Store]: treesize reduction 31, result has 11.4 percent of original size [2022-11-22 00:16:40,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 49 [2022-11-22 00:16:40,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 6 treesize of output 4 [2022-11-22 00:16:40,386 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:40,400 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:40,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 67 [2022-11-22 00:16:40,405 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:40,406 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:40,416 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-22 00:16:40,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 44 [2022-11-22 00:16:40,423 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 6 treesize of output 4 [2022-11-22 00:16:40,436 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:40,456 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:40,456 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 67 [2022-11-22 00:16:40,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:40,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:40,466 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 56 treesize of output 38 [2022-11-22 00:16:40,476 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 6 treesize of output 4 [2022-11-22 00:16:40,481 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 5 [2022-11-22 00:16:40,491 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,491 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:40,506 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:40,507 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 67 [2022-11-22 00:16:40,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:40,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:40,543 INFO L321 Elim1Store]: treesize reduction 26, result has 25.7 percent of original size [2022-11-22 00:16:40,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 48 [2022-11-22 00:16:40,556 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 6 treesize of output 4 [2022-11-22 00:16:40,606 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:40,607 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 88 [2022-11-22 00:16:40,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:40,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:40,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:40,645 INFO L321 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2022-11-22 00:16:40,646 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 3 case distinctions, treesize of input 65 treesize of output 55 [2022-11-22 00:16:40,662 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 22 treesize of output 20 [2022-11-22 00:16:40,668 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 27 treesize of output 23 [2022-11-22 00:16:40,692 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:40,703 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 1 [2022-11-22 00:16:40,715 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,715 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:40,726 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,727 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:40,737 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,738 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 1 [2022-11-22 00:16:40,755 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,755 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:40,766 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,767 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:40,780 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,780 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:40,791 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,791 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:40,802 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,803 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:40,814 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,814 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:40,825 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,826 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:40,836 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,837 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:40,854 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:40,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 79 [2022-11-22 00:16:40,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:40,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:40,866 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 41 treesize of output 35 [2022-11-22 00:16:40,872 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 6 treesize of output 4 [2022-11-22 00:16:40,883 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:16:40,884 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 21 [2022-11-22 00:16:40,905 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:40,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 67 [2022-11-22 00:16:40,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:40,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:40,916 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 34 treesize of output 28 [2022-11-22 00:16:40,922 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 6 treesize of output 4 [2022-11-22 00:16:40,936 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 00:16:40,936 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 20 [2022-11-22 00:16:40,958 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:40,974 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:40,997 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:40,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,010 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,021 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 1 [2022-11-22 00:16:41,034 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 1 [2022-11-22 00:16:41,048 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,048 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,081 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:41,082 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 79 [2022-11-22 00:16:41,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:41,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:41,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 43 [2022-11-22 00:16:41,105 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 00:16:41,111 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 5 [2022-11-22 00:16:41,127 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:41,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 79 [2022-11-22 00:16:41,132 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:41,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:41,145 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-22 00:16:41,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 67 treesize of output 49 [2022-11-22 00:16:41,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 00:16:41,173 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:41,184 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:41,196 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:41,208 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:41,220 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:41,243 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:41,243 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 67 [2022-11-22 00:16:41,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:41,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:41,262 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2022-11-22 00:16:41,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 42 [2022-11-22 00:16:41,270 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 29 treesize of output 25 [2022-11-22 00:16:41,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 00:16:41,299 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,299 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 1 [2022-11-22 00:16:41,312 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,312 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:41,327 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,339 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,339 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:41,351 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,351 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:41,364 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,364 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:41,378 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 1 [2022-11-22 00:16:41,390 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,390 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,403 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,404 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,416 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,417 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:41,429 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,429 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 1 [2022-11-22 00:16:41,443 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,444 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,485 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:41,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 79 [2022-11-22 00:16:41,491 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:41,492 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:41,516 INFO L321 Elim1Store]: treesize reduction 31, result has 11.4 percent of original size [2022-11-22 00:16:41,516 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 3 case distinctions, treesize of input 67 treesize of output 49 [2022-11-22 00:16:41,530 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 6 treesize of output 4 [2022-11-22 00:16:41,556 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:41,581 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:41,595 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:41,609 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:41,618 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-22 00:16:41,627 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-22 00:16:41,636 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-22 00:16:41,645 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-22 00:16:41,665 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:41,700 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,700 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:41,726 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:16:41,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 88 [2022-11-22 00:16:41,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:41,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:41,761 INFO L321 Elim1Store]: treesize reduction 5, result has 61.5 percent of original size [2022-11-22 00:16:41,761 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 67 treesize of output 61 [2022-11-22 00:16:41,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 00:16:41,804 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-22 00:16:41,804 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19 [2022-11-22 00:16:41,824 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,843 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,843 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 1 [2022-11-22 00:16:41,859 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,878 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,899 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,900 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,914 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,914 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 1 [2022-11-22 00:16:41,934 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,934 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 1 [2022-11-22 00:16:41,951 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,951 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:41,985 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:41,985 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:42,001 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 1 [2022-11-22 00:16:42,012 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:42,027 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:42,042 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,042 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 185 treesize of output 1 [2022-11-22 00:16:42,057 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:42,069 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:42,081 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:42,101 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:42,117 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,117 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:42,128 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,128 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:42,142 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,143 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:42,154 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,154 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:42,164 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,165 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:42,185 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:42,196 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:42,214 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 134 treesize of output 1 [2022-11-22 00:16:42,226 INFO L321 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2022-11-22 00:16:42,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 1 [2022-11-22 00:16:43,385 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-22 00:16:43,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121250086] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:16:43,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1933573224] [2022-11-22 00:16:43,387 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-11-22 00:16:43,388 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:16:43,388 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:16:43,388 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:16:43,388 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:16:43,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:16:43,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:16:43,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:16:43,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:43,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:43,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:43,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:16:43,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:43,564 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 22 [2022-11-22 00:16:43,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:16:43,597 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 22 [2022-11-22 00:16:43,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-22 00:16:43,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:16:43,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:16:43,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:16:43,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:16:43,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:43,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:16:43,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,901 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:16:43,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:43,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,945 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:16:43,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:43,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:16:44,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:16:44,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:44,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,299 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-22 00:16:44,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:16:44,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:16:44,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:16:44,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:16:44,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,455 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:44,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:16:44,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,511 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:16:44,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,531 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:16:44,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:44,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:16:44,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:16:44,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:44,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:16:44,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:45,009 INFO L321 Elim1Store]: treesize reduction 46, result has 49.5 percent of original size [2022-11-22 00:16:45,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 79 treesize of output 92 [2022-11-22 00:16:45,084 INFO L321 Elim1Store]: treesize reduction 58, result has 30.1 percent of original size [2022-11-22 00:16:45,084 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 5 case distinctions, treesize of input 81 treesize of output 76 [2022-11-22 00:16:45,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 00:16:45,367 INFO L321 Elim1Store]: treesize reduction 14, result has 65.0 percent of original size [2022-11-22 00:16:45,368 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 33 treesize of output 49 [2022-11-22 00:16:45,537 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 19 treesize of output 11 [2022-11-22 00:16:45,623 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 28 treesize of output 16 [2022-11-22 00:16:45,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:46,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:46,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 00:16:46,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:46,623 INFO L321 Elim1Store]: treesize reduction 36, result has 58.6 percent of original size [2022-11-22 00:16:46,623 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 38 treesize of output 77 [2022-11-22 00:16:46,689 INFO L321 Elim1Store]: treesize reduction 35, result has 35.2 percent of original size [2022-11-22 00:16:46,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2022-11-22 00:16:46,764 INFO L321 Elim1Store]: treesize reduction 20, result has 63.0 percent of original size [2022-11-22 00:16:46,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 61 [2022-11-22 00:16:46,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:47,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:47,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 00:16:47,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:47,771 INFO L321 Elim1Store]: treesize reduction 36, result has 58.6 percent of original size [2022-11-22 00:16:47,771 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 38 treesize of output 77 [2022-11-22 00:16:47,870 INFO L321 Elim1Store]: treesize reduction 20, result has 63.0 percent of original size [2022-11-22 00:16:47,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 61 [2022-11-22 00:16:47,942 INFO L321 Elim1Store]: treesize reduction 35, result has 35.2 percent of original size [2022-11-22 00:16:47,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2022-11-22 00:16:47,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:48,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:16:48,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:16:48,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:16:48,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:48,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:16:48,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:48,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:16:48,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:48,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:48,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:48,461 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:16:48,461 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:16:48,533 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 23 treesize of output 22 [2022-11-22 00:16:48,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:48,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:16:48,550 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:16:48,556 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:16:48,556 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:16:48,604 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 23 treesize of output 22 [2022-11-22 00:16:48,632 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:16:56,025 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5460#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_remove_first_~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 0 |ULTIMATE.start_dll_remove_first_~head#1.base|) (<= 0 |ULTIMATE.start_dll_remove_first_#in~head#1.offset|) (<= 0 |ULTIMATE.start_dll_remove_first_#in~head#1.base|) (<= |ULTIMATE.start_dll_remove_first_#in~head#1.offset| 0) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 0 |ULTIMATE.start_dll_remove_first_~head#1.offset|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (or (not (<= (+ |ULTIMATE.start_dll_remove_first_#t~mem6#1.offset| 8) (select |#length| |ULTIMATE.start_dll_remove_first_#t~mem6#1.base|))) (not (<= 0 (+ |ULTIMATE.start_dll_remove_first_#t~mem6#1.offset| 4)))) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|))' at error location [2022-11-22 00:16:56,025 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:16:56,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:16:56,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 18, 18] total 51 [2022-11-22 00:16:56,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623835590] [2022-11-22 00:16:56,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:16:56,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-11-22 00:16:56,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:16:56,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-11-22 00:16:56,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=353, Invalid=4062, Unknown=15, NotChecked=262, Total=4692 [2022-11-22 00:16:56,029 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand has 52 states, 51 states have (on average 1.7450980392156863) internal successors, (89), 52 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:16:58,652 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)) (.cse8 (+ 8 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))) (let ((.cse45 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse169 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse170 (select (select .cse169 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= (select (select (store .cse169 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse169 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse170 4)) 4)) (not (= .cse170 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))) (.cse46 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse166 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse168 (select (select .cse166 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse167 (+ .cse168 4))) (or (not (= (select (select (store .cse166 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse166 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse167) 4)) (not (= .cse168 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse167 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse0 (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse22 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse163 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse165 (select (select .cse163 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse164 (+ .cse165 4))) (or (<= 0 (+ (select (select .cse163 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse164) 4)) (not (= .cse165 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse164 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse163 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))) (.cse36 (= |c_ULTIMATE.start_dll_create_~head~0#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse118 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1762 Int)) (let ((.cse160 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse162 (select (select .cse160 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse161 (+ .cse162 4))) (or (<= 0 (+ (select (select .cse160 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse161) 4)) (not (= .cse162 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse160 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse161 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse18 (not .cse0)) (.cse130 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1052 Int)) (let ((.cse157 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse159 (select (select .cse157 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse158 (+ .cse159 4))) (or (<= 0 (+ (select (select .cse157 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse158) 4)) (not (= .cse159 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse158 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse157 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))) (.cse28 (and .cse45 .cse46))) (let ((.cse40 (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|)) (.cse29 (forall ((v_arrayElimIndex_42 Int)) (or (= v_arrayElimIndex_42 |c_ULTIMATE.start_main_~#s~0#1.base|) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse154 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse156 (select (select .cse154 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse155 (+ .cse156 4))) (or (<= 0 (+ (select (select .cse154 v_arrayElimIndex_42) .cse155) 4)) (<= 0 (+ (select (select .cse154 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse155) 4)) (not (= .cse156 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse154 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))))) (.cse20 (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse151 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse153 (select (select .cse151 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse152 (+ .cse153 4))) (or (not (= (select (select (store .cse151 v_arrayElimIndex_42 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse151 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse152) 4)) (not (= .cse153 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse152 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse1 (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse148 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse150 (select (select .cse148 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse149 (+ .cse150 4))) (or (<= 0 (+ (select (select .cse148 v_arrayElimIndex_42) .cse149) 4)) (<= 0 (+ (select (select .cse148 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse149) 4)) (not (= .cse150 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse149 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse148 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))) (.cse30 (forall ((v_arrayElimIndex_42 Int)) (or (= v_arrayElimIndex_42 |c_ULTIMATE.start_main_~#s~0#1.base|) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse145 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse147 (select (select .cse145 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse146 (+ .cse147 4))) (or (<= 0 (+ (select (select .cse145 v_arrayElimIndex_42) .cse146) 4)) (<= 0 (+ (select (select .cse145 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse146) 4)) (not (= .cse147 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse146 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse145 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))))) (.cse31 (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse142 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse144 (select (select .cse142 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse143 (+ .cse144 4))) (or (not (= (select (select (store .cse142 v_arrayElimIndex_42 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse142 v_arrayElimIndex_42) .cse143) 4)) (<= 0 (+ (select (select .cse142 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse143) 4)) (not (= .cse144 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))))) (.cse24 (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse140 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse141 (select (select .cse140 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= (select (select (store .cse140 v_arrayElimIndex_42 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse140 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse141 4)) 4)) (not (= .cse141 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))) (.cse32 (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse137 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse139 (select (select .cse137 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse138 (+ .cse139 4))) (or (not (= (select (select (store .cse137 v_arrayElimIndex_42 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse137 v_arrayElimIndex_42) .cse138) 4)) (<= 0 (+ (select (select .cse137 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse138) 4)) (not (= .cse139 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse138 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse33 (forall ((v_arrayElimIndex_42 Int)) (or (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse134 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse136 (select (select .cse134 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse135 (+ .cse136 4))) (or (<= 0 (+ (select (select .cse134 v_arrayElimIndex_42) .cse135) 4)) (<= 0 (+ (select (select .cse134 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse135) 4)) (not (= .cse136 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse135 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse134 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimIndex_42)))) (.cse34 (forall ((v_arrayElimIndex_42 Int)) (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimIndex_42) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse131 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse133 (select (select .cse131 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse132 (+ .cse133 4))) (or (<= 0 (+ (select (select .cse131 v_arrayElimIndex_42) .cse132) 4)) (<= 0 (+ (select (select .cse131 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse132) 4)) (not (= .cse133 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse131 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))))) (.cse37 (or .cse0 .cse28)) (.cse38 (or .cse18 .cse130)) (.cse39 (or (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1052 Int)) (let ((.cse128 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse129 (select (select .cse128 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse128 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse129 4)) 4)) (not (= .cse129 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse128 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))) .cse130) .cse18)) (.cse41 (or .cse0 (and .cse118 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1762 Int)) (let ((.cse124 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse125 (select (select .cse124 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse124 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse125 4)) 4)) (not (= .cse125 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse124 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))) (forall ((v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse126 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse127 (select (select .cse126 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (forall ((v_ArrVal_1767 (Array Int Int))) (not (= (select (select (store .cse126 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))) (<= 0 (+ (select (select .cse126 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse127 4)) 4)) (not (= .cse127 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))))) (.cse42 (or .cse18 (and (forall ((v_arrayElimCell_1052 Int)) (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimCell_1052) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse119 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse120 (select (select .cse119 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse119 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse120 4)) 4)) (not (= .cse120 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse119 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))) (forall ((v_arrayElimCell_1052 Int)) (or (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimCell_1052) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse121 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse123 (select (select .cse121 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse122 (+ .cse123 4))) (or (<= 0 (+ (select (select .cse121 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse122) 4)) (not (= .cse123 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse122 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse121 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))))))) (.cse43 (or .cse0 .cse118)) (.cse35 (not .cse36)) (.cse2 (or .cse0 .cse22)) (.cse3 (or .cse18 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1053 Int)) (let ((.cse115 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse117 (select (select .cse115 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse116 (+ .cse117 4))) (or (<= 0 (+ (select (select .cse115 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse116) 4)) (not (= .cse117 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse115 v_arrayElimCell_1053 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse116 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))) (.cse21 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse113 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse114 (select (select .cse113 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse113 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse114 4)) 4)) (not (= .cse114 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse113 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))) (.cse19 (forall ((v_ArrVal_1767 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse110 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse112 (select (select .cse110 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse111 (+ .cse112 4))) (or (<= 0 (+ (select (select .cse110 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse111) 4)) (not (= .cse112 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse110 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse111 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse23 (forall ((v_ArrVal_1767 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse108 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse109 (select (select .cse108 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse108 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse109 4)) 4)) (not (= .cse109 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse108 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))) (.cse55 (= |c_ULTIMATE.start_dll_create_~new_head~0#1.base| 0)) (.cse44 (= 0 |c_ULTIMATE.start_main_~#s~0#1.base|))) (and (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (or (and (or (and (or .cse0 .cse1) .cse2 .cse3 (or (and (forall ((v_arrayElimIndex_42 Int)) (or (= v_arrayElimIndex_42 |c_ULTIMATE.start_main_~#s~0#1.base|) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse4 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse6 (select (select .cse4 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse5 (+ .cse6 4))) (or (<= 0 (+ (select (select .cse4 v_arrayElimIndex_42) .cse5) 4)) (not (= (select (select (store .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse4 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse5) 4)) (not (= .cse6 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))))) (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse9 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse11 (select (select .cse9 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse10 (+ .cse11 4))) (or (<= 0 (+ (select (select .cse9 v_arrayElimIndex_42) .cse10) 4)) (not (= (select (select (store .cse9 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse9 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse10) 4)) (not (= .cse11 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))) (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse12 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse14 (select (select .cse12 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse13 (+ .cse14 4))) (or (<= 0 (+ (select (select .cse12 v_arrayElimIndex_42) .cse13) 4)) (not (= (select (select (store .cse12 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse12 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse13) 4)) (not (= .cse14 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse13 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) (forall ((v_arrayElimIndex_42 Int)) (or (= v_arrayElimIndex_42 |c_ULTIMATE.start_main_~#s~0#1.base|) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse15 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse17 (select (select .cse15 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse16 (+ .cse17 4))) (or (<= 0 (+ (select (select .cse15 v_arrayElimIndex_42) .cse16) 4)) (not (= (select (select (store .cse15 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse15 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse16) 4)) (not (= .cse17 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse16 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))))) .cse18) (or .cse0 (and .cse19 .cse20 .cse21 .cse22 .cse23 .cse24)) (or (forall ((v_arrayElimIndex_42 Int) (v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1053 Int)) (let ((.cse25 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse27 (select (select .cse25 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse26 (+ .cse27 4))) (or (<= 0 (+ (select (select .cse25 v_arrayElimIndex_42) .cse26) 4)) (<= 0 (+ (select (select .cse25 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse26) 4)) (not (= .cse27 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse25 v_arrayElimCell_1053 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse26 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) .cse18) (or .cse18 .cse28) (or .cse0 (and .cse29 .cse1 .cse30 .cse31 .cse32 .cse33 .cse34))) .cse35) (or .cse36 (and .cse37 .cse38 .cse39 .cse3 (or .cse40 (and .cse39 .cse41)) .cse42 .cse43))) (= .cse8 |c_ULTIMATE.start_main_~#s~0#1.offset|)) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) 1) (= (select .cse7 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) 0) .cse18 (or .cse40 (and (or (and .cse19 .cse29 .cse20 .cse1 .cse21 .cse22 .cse23 .cse30 .cse31 .cse24 .cse32 .cse33 .cse34) .cse35) (or .cse36 (and .cse37 .cse38 .cse39 .cse3 .cse41 .cse42 .cse43)))) (or .cse35 (let ((.cse54 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse75 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse77 (select (select .cse75 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse76 (+ .cse77 4))) (or (<= 0 (+ (select (select .cse75 0) .cse76) 4)) (<= 0 (+ (select (select .cse75 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse76) 4)) (not (= .cse77 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse76 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse75 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))))) (and (or (and (or .cse28 .cse44) .cse45 .cse46) .cse18) .cse2 (or .cse0 (let ((.cse50 (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1051 Int)) (let ((.cse56 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse58 (select (select .cse56 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse57 (+ .cse58 4))) (or (<= 0 (+ (select (select .cse56 0) .cse57) 4)) (<= 0 (+ (select (select .cse56 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse57) 4)) (not (= .cse58 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse56 v_arrayElimCell_1051 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))) .cse54))) (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse47 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse49 (select (select .cse47 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse48 (+ .cse49 4))) (or (<= 0 (+ (select (select .cse47 0) .cse48) 4)) (not (= (select (select (store .cse47 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse47 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse48) 4)) (not (= .cse49 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse48 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) (or .cse50 .cse44) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse51 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse53 (select (select .cse51 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse52 (+ .cse53 4))) (or (<= 0 (+ (select (select .cse51 0) .cse52) 4)) (not (= (select (select (store .cse51 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse51 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse52) 4)) (not (= .cse53 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|))))))) .cse54 (or .cse55 .cse50)))) .cse3 (or (let ((.cse59 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse64 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse66 (select (select .cse64 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse65 (+ .cse66 4))) (or (not (= (select (select (store .cse64 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse64 0) .cse65) 4)) (<= 0 (+ (select (select .cse64 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse65) 4)) (not (= .cse66 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))))) (.cse60 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse61 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse63 (select (select .cse61 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse62 (+ .cse63 4))) (or (not (= (select (select (store .cse61 |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse61 0) .cse62) 4)) (<= 0 (+ (select (select .cse61 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse62) 4)) (not (= .cse63 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse62 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))) (and .cse59 .cse60 (or (and .cse59 .cse60) .cse44))) .cse18) (or .cse0 (and .cse19 (or .cse55 (and (or .cse44 (and .cse21 .cse22)) .cse21 .cse22)) (or (and .cse19 .cse23) .cse44) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse67 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse68 (select (select .cse67 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (not (= (select (select (store .cse67 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse67 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) (+ .cse68 4)) 4)) (not (= .cse68 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse69 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse71 (select (select .cse69 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse70 (+ .cse71 4))) (or (not (= (select (select (store .cse69 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (<= 0 (+ (select (select .cse69 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse70) 4)) (not (= .cse71 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse70 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))) (or .cse18 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1053 Int)) (let ((.cse72 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse74 (select (select .cse72 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse73 (+ .cse74 4))) (or (<= 0 (+ (select (select .cse72 0) .cse73) 4)) (<= 0 (+ (select (select .cse72 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|) .cse73) 4)) (not (= .cse74 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse72 v_arrayElimCell_1053 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse73 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (or .cse0 .cse54)))) (not .cse44) (or .cse36 (not .cse55) (let ((.cse78 (= 0 |c_ULTIMATE.start_dll_create_~head~0#1.base|))) (let ((.cse85 (not .cse78)) (.cse91 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1052 Int)) (let ((.cse105 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse107 (select (select .cse105 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse106 (+ .cse107 4))) (or (<= 0 (+ (select (select .cse105 0) .cse106) 4)) (not (= .cse107 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse106 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse105 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))))) (let ((.cse81 (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1762 Int)) (let ((.cse102 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse104 (select (select .cse102 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse103 (+ .cse104 4))) (or (<= 0 (+ (select (select .cse102 0) .cse103) 4)) (not (= .cse104 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse102 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse103 |c_ULTIMATE.start_main_~#s~0#1.offset|))))))) (.cse84 (or .cse85 (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1052 Int)) (let ((.cse100 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse101 (select (select .cse100 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse100 0) (+ .cse101 4)) 4)) (not (= .cse101 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse100 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))) .cse91)))) (and (or (and (or .cse78 (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_arrayElimCell_1049 Int) (v_ArrVal_1762 Int)) (let ((.cse79 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse80 (select (select .cse79 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse79 0) (+ .cse80 4)) 4)) (not (= .cse80 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse79 v_arrayElimCell_1049 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))) .cse81 (forall ((v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse82 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse83 (select (select .cse82 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse82 0) (+ .cse83 4)) 4)) (not (= .cse83 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (forall ((v_ArrVal_1767 (Array Int Int))) (not (= (select (select (store .cse82 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))))) .cse84) .cse44) (or .cse78 .cse81) (or .cse85 (and (forall ((v_arrayElimCell_1052 Int)) (or (= v_arrayElimCell_1052 0) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse86 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse88 (select (select .cse86 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse87 (+ .cse88 4))) (or (<= 0 (+ (select (select .cse86 0) .cse87) 4)) (not (= .cse88 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse87 |c_ULTIMATE.start_main_~#s~0#1.offset|) (not (= (select (select (store .cse86 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))))))))) (forall ((v_arrayElimCell_1052 Int)) (or (= v_arrayElimCell_1052 0) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse89 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse90 (select (select .cse89 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse89 0) (+ .cse90 4)) 4)) (not (= .cse90 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse89 v_arrayElimCell_1052 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))))))))) (or .cse85 .cse91) (or .cse78 (and (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse92 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse93 (select (select .cse92 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (or (<= 0 (+ (select (select .cse92 0) (+ .cse93 4)) 4)) (not (= (select (select (store .cse92 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (not (= .cse93 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)))))) (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int)) (let ((.cse94 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse96 (select (select .cse94 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse95 (+ .cse96 4))) (or (<= 0 (+ (select (select .cse94 0) .cse95) 4)) (not (= (select (select (store .cse94 0 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (not (= .cse96 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (= .cse95 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))))) (or (forall ((v_ArrVal_1767 (Array Int Int)) (v_ArrVal_1764 (Array Int Int)) (v_ArrVal_1762 Int) (v_arrayElimCell_1053 Int)) (let ((.cse97 (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| (store .cse7 .cse8 v_ArrVal_1762)) |c_ULTIMATE.start_dll_create_~head~0#1.base| v_ArrVal_1764))) (let ((.cse99 (select (select .cse97 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse98 (+ .cse99 4))) (or (<= 0 (+ (select (select .cse97 0) .cse98) 4)) (not (= .cse99 |c_ULTIMATE.start_dll_create_~new_head~0#1.offset|)) (not (= (select (select (store .cse97 v_arrayElimCell_1053 v_ArrVal_1767) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (= .cse98 |c_ULTIMATE.start_main_~#s~0#1.offset|)))))) .cse85) .cse84))))) (= (select |c_#valid| |c_ULTIMATE.start_dll_create_~head~0#1.base|) 1)))))) is different from true [2022-11-22 00:17:01,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:01,942 INFO L93 Difference]: Finished difference Result 101 states and 108 transitions. [2022-11-22 00:17:01,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-22 00:17:01,943 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 1.7450980392156863) internal successors, (89), 52 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-11-22 00:17:01,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:01,943 INFO L225 Difference]: With dead ends: 101 [2022-11-22 00:17:01,944 INFO L226 Difference]: Without dead ends: 101 [2022-11-22 00:17:01,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2393 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=817, Invalid=6835, Unknown=16, NotChecked=522, Total=8190 [2022-11-22 00:17:01,946 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 320 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 113 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:01,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 353 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 717 Invalid, 0 Unknown, 113 Unchecked, 1.2s Time] [2022-11-22 00:17:01,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2022-11-22 00:17:01,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 57. [2022-11-22 00:17:01,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 56 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:17:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2022-11-22 00:17:01,949 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 30 [2022-11-22 00:17:01,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:01,949 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2022-11-22 00:17:01,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 1.7450980392156863) internal successors, (89), 52 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:17:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2022-11-22 00:17:01,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-22 00:17:01,950 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:01,950 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:17:01,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-22 00:17:02,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-22 00:17:02,159 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:17:02,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:02,159 INFO L85 PathProgramCache]: Analyzing trace with hash -439721473, now seen corresponding path program 1 times [2022-11-22 00:17:02,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:02,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609200030] [2022-11-22 00:17:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:02,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:02,248 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 00:17:02,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:02,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609200030] [2022-11-22 00:17:02,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609200030] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:17:02,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451751642] [2022-11-22 00:17:02,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:02,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:17:02,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:17:02,251 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:17:02,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-22 00:17:02,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:02,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 00:17:02,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:17:02,521 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 00:17:02,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:17:02,576 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 00:17:02,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451751642] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:17:02,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1238079929] [2022-11-22 00:17:02,578 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-22 00:17:02,578 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:17:02,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:17:02,579 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:17:02,579 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:17:02,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 00:17:02,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-22 00:17:02,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:17:02,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:17:02,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:17:02,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:17:02,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:17:02,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:17:02,741 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 22 [2022-11-22 00:17:02,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 31 [2022-11-22 00:17:02,768 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 22 [2022-11-22 00:17:02,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2022-11-22 00:17:02,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:17:02,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:17:02,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-22 00:17:02,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:17:02,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 00:17:02,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:02,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:17:03,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,003 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 00:17:03,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,021 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 0 case distinctions, treesize of input 37 treesize of output 42 [2022-11-22 00:17:03,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:17:03,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:17:03,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:17:03,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 46 treesize of output 47 [2022-11-22 00:17:03,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:17:03,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 46 treesize of output 47 [2022-11-22 00:17:03,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-22 00:17:03,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-22 00:17:03,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:17:03,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-22 00:17:03,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:17:03,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-22 00:17:03,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:17:03,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,539 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:17:03,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,558 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 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-22 00:17:03,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:17:03,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:17:03,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 50 treesize of output 49 [2022-11-22 00:17:03,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:03,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 41 [2022-11-22 00:17:03,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:04,001 INFO L321 Elim1Store]: treesize reduction 46, result has 49.5 percent of original size [2022-11-22 00:17:04,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 79 treesize of output 92 [2022-11-22 00:17:04,067 INFO L321 Elim1Store]: treesize reduction 58, result has 30.1 percent of original size [2022-11-22 00:17:04,067 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 5 case distinctions, treesize of input 81 treesize of output 76 [2022-11-22 00:17:04,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 00:17:04,425 INFO L321 Elim1Store]: treesize reduction 14, result has 65.0 percent of original size [2022-11-22 00:17:04,426 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 33 treesize of output 49 [2022-11-22 00:17:04,578 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 19 treesize of output 11 [2022-11-22 00:17:04,589 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 28 treesize of output 16 [2022-11-22 00:17:04,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:17:05,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:17:05,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:17:05,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 00:17:05,480 INFO L321 Elim1Store]: treesize reduction 36, result has 58.6 percent of original size [2022-11-22 00:17:05,481 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 38 treesize of output 77 [2022-11-22 00:17:05,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:17:05,568 INFO L321 Elim1Store]: treesize reduction 20, result has 63.0 percent of original size [2022-11-22 00:17:05,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 61 [2022-11-22 00:17:05,629 INFO L321 Elim1Store]: treesize reduction 35, result has 35.2 percent of original size [2022-11-22 00:17:05,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2022-11-22 00:17:06,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:17:06,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 00:17:06,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:17:06,492 INFO L321 Elim1Store]: treesize reduction 36, result has 58.6 percent of original size [2022-11-22 00:17:06,493 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 38 treesize of output 77 [2022-11-22 00:17:06,587 INFO L321 Elim1Store]: treesize reduction 20, result has 63.0 percent of original size [2022-11-22 00:17:06,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 61 [2022-11-22 00:17:06,653 INFO L321 Elim1Store]: treesize reduction 35, result has 35.2 percent of original size [2022-11-22 00:17:06,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 33 [2022-11-22 00:17:06,672 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:17:07,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-22 00:17:07,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:17:07,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:17:07,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:17:07,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:17:07,123 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:17:07,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:07,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:07,138 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:17:07,144 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:17:07,145 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:17:07,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:17:07,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:07,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:07,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:17:07,235 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:17:07,235 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 2 case distinctions, treesize of input 230 treesize of output 216 [2022-11-22 00:17:07,265 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 23 treesize of output 22 [2022-11-22 00:17:07,277 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 23 treesize of output 22 [2022-11-22 00:17:07,317 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:17:12,255 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5866#(and (or (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) 0))) (< |ULTIMATE.start_main_~i~0#1| 0) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~#s~0#1.base|) 1) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= (+ |ULTIMATE.start_main_~#s~0#1.offset| 4) (select |#length| |ULTIMATE.start_main_~#s~0#1.base|)) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= |#NULL.base| 0) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= 0 |#NULL.offset|) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|))' at error location [2022-11-22 00:17:12,256 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 00:17:12,256 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:17:12,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2022-11-22 00:17:12,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614509889] [2022-11-22 00:17:12,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 00:17:12,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 00:17:12,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:17:12,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 00:17:12,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:17:12,258 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:17:12,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:17:12,320 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2022-11-22 00:17:12,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 00:17:12,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-22 00:17:12,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:17:12,321 INFO L225 Difference]: With dead ends: 57 [2022-11-22 00:17:12,321 INFO L226 Difference]: Without dead ends: 57 [2022-11-22 00:17:12,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 71 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=138, Invalid=512, Unknown=0, NotChecked=0, Total=650 [2022-11-22 00:17:12,322 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 62 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:17:12,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 72 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:17:12,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-22 00:17:12,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-22 00:17:12,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 48 states have (on average 1.25) internal successors, (60), 56 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:17:12,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2022-11-22 00:17:12,325 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 31 [2022-11-22 00:17:12,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:17:12,325 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2022-11-22 00:17:12,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:17:12,325 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2022-11-22 00:17:12,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 00:17:12,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:17:12,326 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:17:12,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-22 00:17:12,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:17:12,526 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-11-22 00:17:12,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:17:12,527 INFO L85 PathProgramCache]: Analyzing trace with hash -801981762, now seen corresponding path program 1 times [2022-11-22 00:17:12,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:17:12,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119714093] [2022-11-22 00:17:12,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:12,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:17:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:15,416 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:17:15,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:17:15,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119714093] [2022-11-22 00:17:15,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119714093] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:17:15,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302779650] [2022-11-22 00:17:15,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:17:15,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:17:15,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:17:15,419 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:17:15,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_443529d6-4a8f-4b3f-822a-fbc3c819d2fd/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-22 00:17:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:17:15,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 110 conjunts are in the unsatisfiable core [2022-11-22 00:17:15,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:17:15,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 00:17:15,780 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 00:17:15,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 00:17:15,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:17:15,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 00:17:16,050 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 22 [2022-11-22 00:17:16,059 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 22 [2022-11-22 00:17:16,222 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-22 00:17:16,223 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 16 treesize of output 18 [2022-11-22 00:17:16,359 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 14 treesize of output 16 [2022-11-22 00:17:16,379 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 14 treesize of output 16 [2022-11-22 00:17:16,398 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 21 treesize of output 20 [2022-11-22 00:17:16,411 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 21 treesize of output 20 [2022-11-22 00:17:16,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:17:16,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 00:17:16,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:16,726 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 00:17:16,727 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 66 [2022-11-22 00:17:16,747 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-11-22 00:17:16,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 41 [2022-11-22 00:17:17,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:17,790 INFO L321 Elim1Store]: treesize reduction 140, result has 36.1 percent of original size [2022-11-22 00:17:17,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 125 treesize of output 142 [2022-11-22 00:17:17,950 INFO L321 Elim1Store]: treesize reduction 72, result has 51.7 percent of original size [2022-11-22 00:17:17,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 68 treesize of output 119 [2022-11-22 00:17:20,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:17:20,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:17:20,569 INFO L321 Elim1Store]: treesize reduction 155, result has 18.0 percent of original size [2022-11-22 00:17:20,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 187 treesize of output 178 [2022-11-22 00:17:20,655 INFO L321 Elim1Store]: treesize reduction 169, result has 5.1 percent of original size [2022-11-22 00:17:20,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 168 treesize of output 171 [2022-11-22 00:17:22,080 INFO L321 Elim1Store]: treesize reduction 153, result has 40.5 percent of original size [2022-11-22 00:17:22,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 199 treesize of output 246 [2022-11-22 00:17:22,273 INFO L321 Elim1Store]: treesize reduction 129, result has 40.6 percent of original size [2022-11-22 00:17:22,273 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 28 case distinctions, treesize of input 197 treesize of output 206 [2022-11-22 00:17:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:17:22,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:17:47,149 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:17:47,149 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 1908 treesize of output 1404 [2022-11-22 00:17:47,182 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:17:47,183 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 1364 treesize of output 980 [2022-11-22 00:17:47,296 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:17:47,296 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 1908 treesize of output 1504 [2022-11-22 00:17:47,338 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:17:47,339 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 1464 treesize of output 980 [2022-11-22 00:17:49,412 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (+ |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 4)) (.cse11 (+ |c_ULTIMATE.start_dll_create_~head~0#1.offset| 8))) (and (forall ((v_ArrVal_2041 Int) (v_ArrVal_2043 Int) (v_ArrVal_2038 Int) (v_ArrVal_2039 Int) (v_arrayElimArr_105 (Array Int Int)) (v_arrayElimArr_104 (Array Int Int))) (let ((.cse0 (let ((.cse12 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_105))) (store .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse12 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse11 v_ArrVal_2039)))) (.cse6 (let ((.cse10 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_104))) (store .cse10 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse10 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse11 v_ArrVal_2038))))) (let ((.cse7 (select (select .cse6 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse9 (+ (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse8 (select (select .cse0 .cse7) .cse9))) (let ((.cse2 (+ .cse8 8)) (.cse1 (select (select .cse6 .cse7) .cse9)) (.cse3 (+ .cse8 4))) (or (not (= (select (select (store .cse0 .cse1 (store (select .cse0 .cse1) .cse2 v_ArrVal_2041)) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (not (<= 0 .cse3)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| (select v_arrayElimArr_105 .cse4))) (= (select (select (let ((.cse5 (store .cse6 .cse1 (store (select .cse6 .cse1) .cse2 v_ArrVal_2043)))) (store .cse5 |c_ULTIMATE.start_main_~#s~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset| .cse1))) .cse1) .cse3) 0) (not (= (select v_arrayElimArr_104 .cse4) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (not (= .cse7 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|)))))))) (forall ((v_ArrVal_2041 Int) (v_ArrVal_2038 Int) (v_ArrVal_2039 Int) (v_arrayElimArr_107 (Array Int Int)) (v_arrayElimArr_106 (Array Int Int))) (let ((.cse19 (let ((.cse23 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_107))) (store .cse23 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse23 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse11 v_ArrVal_2039)))) (.cse21 (let ((.cse22 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_create_~new_head~0#1.base| v_arrayElimArr_106))) (store .cse22 |c_ULTIMATE.start_dll_create_~head~0#1.base| (store (select .cse22 |c_ULTIMATE.start_dll_create_~head~0#1.base|) .cse11 v_ArrVal_2038))))) (let ((.cse18 (select (select .cse21 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse20 (+ (select (select .cse19 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse17 (select (select .cse21 .cse18) .cse20)) (.cse16 (select (select .cse19 .cse18) .cse20))) (let ((.cse14 (store .cse19 .cse17 (store (select .cse19 .cse17) (+ .cse16 8) v_ArrVal_2041)))) (let ((.cse13 (+ .cse16 4)) (.cse15 (select .cse14 |c_ULTIMATE.start_main_~#s~0#1.base|))) (or (not (<= 0 .cse13)) (not (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| (select v_arrayElimArr_107 .cse4))) (= (select (select (store .cse14 |c_ULTIMATE.start_main_~#s~0#1.base| (store .cse15 |c_ULTIMATE.start_main_~#s~0#1.offset| .cse16)) .cse17) .cse13) 0) (not (= (select .cse15 |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)) (not (= (select v_arrayElimArr_106 .cse4) |c_ULTIMATE.start_dll_create_~head~0#1.base|)) (not (= .cse18 |c_ULTIMATE.start_dll_create_~new_head~0#1.base|))))))))))) is different from false [2022-11-22 00:17:59,439 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:17:59,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 2368 treesize of output 1608 [2022-11-22 00:17:59,472 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 00:17:59,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 1564 treesize of output 984 [2022-11-22 00:18:36,724 WARN L233 SmtUtils]: Spent 35.32s on a formula simplification. DAG size of input: 358 DAG size of output: 226 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-22 00:18:36,725 INFO L321 Elim1Store]: treesize reduction 726, result has 47.0 percent of original size [2022-11-22 00:18:36,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 20 new quantified variables, introduced 78 case distinctions, treesize of input 983122 treesize of output 891570 [2022-11-22 00:19:37,718 INFO L217 Elim1Store]: Index analysis took 184 ms