./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_insert_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5e519f3a 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_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_insert_unequal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI --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 97351642d4f3bf3f6d868e0a3719427b4c33bd5e0f87a93a325784728b912f03 --- 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-5e519f3 [2022-11-03 04:08:29,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 04:08:29,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 04:08:29,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 04:08:29,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 04:08:29,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 04:08:29,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 04:08:29,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 04:08:29,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 04:08:29,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 04:08:29,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 04:08:29,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 04:08:29,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 04:08:29,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 04:08:29,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 04:08:29,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 04:08:29,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 04:08:29,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 04:08:29,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 04:08:29,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 04:08:29,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 04:08:29,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 04:08:29,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 04:08:29,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 04:08:29,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 04:08:29,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 04:08:29,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 04:08:29,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 04:08:29,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 04:08:29,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 04:08:29,903 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 04:08:29,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 04:08:29,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 04:08:29,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 04:08:29,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 04:08:29,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 04:08:29,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 04:08:29,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 04:08:29,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 04:08:29,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 04:08:29,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 04:08:29,917 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-03 04:08:29,971 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 04:08:29,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 04:08:29,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 04:08:29,972 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 04:08:29,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 04:08:29,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 04:08:29,974 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 04:08:29,974 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 04:08:29,974 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 04:08:29,975 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 04:08:29,976 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 04:08:29,976 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 04:08:29,976 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 04:08:29,977 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 04:08:29,977 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 04:08:29,977 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 04:08:29,977 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 04:08:29,978 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 04:08:29,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-03 04:08:29,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-03 04:08:29,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 04:08:29,982 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 04:08:29,982 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 04:08:29,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 04:08:29,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 04:08:29,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 04:08:29,983 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-03 04:08:29,983 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-03 04:08:29,983 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-03 04:08:29,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 04:08:29,984 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 04:08:29,984 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 04:08:29,985 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 04:08:29,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 04:08:29,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 04:08:29,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:08:29,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 04:08:29,986 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 04:08:29,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 04:08:29,986 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 04:08:29,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 04:08:29,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 04:08:29,987 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_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97351642d4f3bf3f6d868e0a3719427b4c33bd5e0f87a93a325784728b912f03 [2022-11-03 04:08:30,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 04:08:30,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 04:08:30,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 04:08:30,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 04:08:30,403 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 04:08:30,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/list-simple/dll2n_insert_unequal.i [2022-11-03 04:08:30,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/data/cdd62b099/dc24565f443242ed8e4be0f111041d2c/FLAG50b4e4ef0 [2022-11-03 04:08:31,193 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 04:08:31,202 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/sv-benchmarks/c/list-simple/dll2n_insert_unequal.i [2022-11-03 04:08:31,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/data/cdd62b099/dc24565f443242ed8e4be0f111041d2c/FLAG50b4e4ef0 [2022-11-03 04:08:31,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/data/cdd62b099/dc24565f443242ed8e4be0f111041d2c [2022-11-03 04:08:31,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 04:08:31,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 04:08:31,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 04:08:31,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 04:08:31,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 04:08:31,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:08:31" (1/1) ... [2022-11-03 04:08:31,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d02d151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:31, skipping insertion in model container [2022-11-03 04:08:31,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:08:31" (1/1) ... [2022-11-03 04:08:31,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 04:08:31,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 04:08:32,079 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/sv-benchmarks/c/list-simple/dll2n_insert_unequal.i[24989,25002] [2022-11-03 04:08:32,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:08:32,101 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 04:08:32,182 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/sv-benchmarks/c/list-simple/dll2n_insert_unequal.i[24989,25002] [2022-11-03 04:08:32,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 04:08:32,221 INFO L208 MainTranslator]: Completed translation [2022-11-03 04:08:32,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32 WrapperNode [2022-11-03 04:08:32,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 04:08:32,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 04:08:32,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 04:08:32,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 04:08:32,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (1/1) ... [2022-11-03 04:08:32,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (1/1) ... [2022-11-03 04:08:32,278 INFO L138 Inliner]: procedures = 127, calls = 48, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2022-11-03 04:08:32,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 04:08:32,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 04:08:32,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 04:08:32,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 04:08:32,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (1/1) ... [2022-11-03 04:08:32,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (1/1) ... [2022-11-03 04:08:32,292 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (1/1) ... [2022-11-03 04:08:32,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (1/1) ... [2022-11-03 04:08:32,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (1/1) ... [2022-11-03 04:08:32,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (1/1) ... [2022-11-03 04:08:32,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (1/1) ... [2022-11-03 04:08:32,310 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (1/1) ... [2022-11-03 04:08:32,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 04:08:32,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 04:08:32,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 04:08:32,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 04:08:32,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (1/1) ... [2022-11-03 04:08:32,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 04:08:32,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:32,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 04:08:32,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 04:08:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-11-03 04:08:32,414 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-11-03 04:08:32,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 04:08:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 04:08:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 04:08:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 04:08:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 04:08:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 04:08:32,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 04:08:32,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 04:08:32,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 04:08:32,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 04:08:32,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 04:08:32,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 04:08:32,568 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 04:08:32,571 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 04:08:32,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-11-03 04:08:33,204 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 04:08:33,288 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 04:08:33,289 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-03 04:08:33,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:08:33 BoogieIcfgContainer [2022-11-03 04:08:33,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 04:08:33,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 04:08:33,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 04:08:33,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 04:08:33,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:08:31" (1/3) ... [2022-11-03 04:08:33,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e7b17d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:08:33, skipping insertion in model container [2022-11-03 04:08:33,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:08:32" (2/3) ... [2022-11-03 04:08:33,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59e7b17d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:08:33, skipping insertion in model container [2022-11-03 04:08:33,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:08:33" (3/3) ... [2022-11-03 04:08:33,305 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_insert_unequal.i [2022-11-03 04:08:33,330 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 04:08:33,330 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2022-11-03 04:08:33,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 04:08:33,441 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;@19eb27fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 04:08:33,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2022-11-03 04:08:33,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 53 states have (on average 2.4339622641509435) internal successors, (129), 115 states have internal predecessors, (129), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:33,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 04:08:33,465 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:33,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 04:08:33,467 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:08:33,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:33,474 INFO L85 PathProgramCache]: Analyzing trace with hash 8357563, now seen corresponding path program 1 times [2022-11-03 04:08:33,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:33,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588081095] [2022-11-03 04:08:33,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:33,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:33,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:33,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588081095] [2022-11-03 04:08:33,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588081095] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:33,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:33,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:08:33,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485501377] [2022-11-03 04:08:33,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:33,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:08:33,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:33,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:08:33,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:33,853 INFO L87 Difference]: Start difference. First operand has 117 states, 53 states have (on average 2.4339622641509435) internal successors, (129), 115 states have internal predecessors, (129), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 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) [2022-11-03 04:08:34,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:34,231 INFO L93 Difference]: Finished difference Result 209 states and 234 transitions. [2022-11-03 04:08:34,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:08:34,234 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 [2022-11-03 04:08:34,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:34,243 INFO L225 Difference]: With dead ends: 209 [2022-11-03 04:08:34,243 INFO L226 Difference]: Without dead ends: 203 [2022-11-03 04:08:34,245 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 [2022-11-03 04:08:34,248 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 115 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:34,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 202 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:08:34,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-03 04:08:34,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 109. [2022-11-03 04:08:34,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 51 states have (on average 2.3529411764705883) internal successors, (120), 108 states have internal predecessors, (120), 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) [2022-11-03 04:08:34,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 120 transitions. [2022-11-03 04:08:34,294 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 120 transitions. Word has length 4 [2022-11-03 04:08:34,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:34,295 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 120 transitions. [2022-11-03 04:08:34,295 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) [2022-11-03 04:08:34,295 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 120 transitions. [2022-11-03 04:08:34,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 04:08:34,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:34,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 04:08:34,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 04:08:34,297 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:08:34,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:34,298 INFO L85 PathProgramCache]: Analyzing trace with hash 8357564, now seen corresponding path program 1 times [2022-11-03 04:08:34,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:34,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611017677] [2022-11-03 04:08:34,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:34,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:34,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:34,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:34,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611017677] [2022-11-03 04:08:34,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611017677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:34,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:34,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:08:34,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667879184] [2022-11-03 04:08:34,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:34,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:08:34,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:34,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:08:34,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:34,419 INFO L87 Difference]: Start difference. First operand 109 states and 120 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) [2022-11-03 04:08:34,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:34,714 INFO L93 Difference]: Finished difference Result 202 states and 223 transitions. [2022-11-03 04:08:34,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:08:34,718 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 [2022-11-03 04:08:34,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:34,725 INFO L225 Difference]: With dead ends: 202 [2022-11-03 04:08:34,725 INFO L226 Difference]: Without dead ends: 202 [2022-11-03 04:08:34,729 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 [2022-11-03 04:08:34,732 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 113 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:34,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 197 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:08:34,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-03 04:08:34,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 106. [2022-11-03 04:08:34,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 51 states have (on average 2.2941176470588234) internal successors, (117), 105 states have internal predecessors, (117), 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) [2022-11-03 04:08:34,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2022-11-03 04:08:34,751 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 4 [2022-11-03 04:08:34,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:34,753 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2022-11-03 04:08:34,754 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) [2022-11-03 04:08:34,754 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2022-11-03 04:08:34,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 04:08:34,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:34,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 04:08:34,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 04:08:34,758 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:08:34,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:34,765 INFO L85 PathProgramCache]: Analyzing trace with hash 8595954, now seen corresponding path program 1 times [2022-11-03 04:08:34,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:34,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239806859] [2022-11-03 04:08:34,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:34,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:34,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:34,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:34,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239806859] [2022-11-03 04:08:34,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239806859] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:34,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:34,881 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:08:34,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142254249] [2022-11-03 04:08:34,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:34,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:08:34,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:34,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:08:34,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:34,884 INFO L87 Difference]: Start difference. First operand 106 states and 117 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) [2022-11-03 04:08:34,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:34,949 INFO L93 Difference]: Finished difference Result 116 states and 128 transitions. [2022-11-03 04:08:34,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:08:34,950 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 [2022-11-03 04:08:34,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:34,952 INFO L225 Difference]: With dead ends: 116 [2022-11-03 04:08:34,953 INFO L226 Difference]: Without dead ends: 116 [2022-11-03 04:08:34,957 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 [2022-11-03 04:08:34,961 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 10 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:34,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 194 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:08:34,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-03 04:08:34,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 107. [2022-11-03 04:08:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 52 states have (on average 2.269230769230769) internal successors, (118), 106 states have internal predecessors, (118), 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) [2022-11-03 04:08:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 118 transitions. [2022-11-03 04:08:34,984 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 118 transitions. Word has length 4 [2022-11-03 04:08:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:34,985 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 118 transitions. [2022-11-03 04:08:34,985 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) [2022-11-03 04:08:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 118 transitions. [2022-11-03 04:08:34,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-03 04:08:34,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:34,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:34,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 04:08:34,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:08:34,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:34,989 INFO L85 PathProgramCache]: Analyzing trace with hash 328619199, now seen corresponding path program 1 times [2022-11-03 04:08:34,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:34,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958667] [2022-11-03 04:08:34,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:34,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:35,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:35,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:35,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958667] [2022-11-03 04:08:35,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958667] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:35,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:35,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:08:35,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485466093] [2022-11-03 04:08:35,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:35,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:08:35,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:35,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:08:35,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:35,122 INFO L87 Difference]: Start difference. First operand 107 states and 118 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) [2022-11-03 04:08:35,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:35,186 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2022-11-03 04:08:35,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:08:35,187 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 [2022-11-03 04:08:35,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:35,188 INFO L225 Difference]: With dead ends: 113 [2022-11-03 04:08:35,188 INFO L226 Difference]: Without dead ends: 113 [2022-11-03 04:08:35,189 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 [2022-11-03 04:08:35,197 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 1 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:35,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 191 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:35,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-03 04:08:35,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 112. [2022-11-03 04:08:35,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 57 states have (on average 2.1578947368421053) internal successors, (123), 111 states have internal predecessors, (123), 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) [2022-11-03 04:08:35,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 123 transitions. [2022-11-03 04:08:35,216 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 123 transitions. Word has length 8 [2022-11-03 04:08:35,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:35,217 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 123 transitions. [2022-11-03 04:08:35,217 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) [2022-11-03 04:08:35,217 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 123 transitions. [2022-11-03 04:08:35,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 04:08:35,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:35,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:35,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 04:08:35,219 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:08:35,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:35,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1669110859, now seen corresponding path program 1 times [2022-11-03 04:08:35,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:35,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570921588] [2022-11-03 04:08:35,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:35,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:35,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:08:35,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:35,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570921588] [2022-11-03 04:08:35,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570921588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:35,382 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:35,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:08:35,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521832648] [2022-11-03 04:08:35,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:35,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:08:35,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:35,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:08:35,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:35,390 INFO L87 Difference]: Start difference. First operand 112 states and 123 transitions. Second operand has 3 states, 2 states have (on average 5.5) 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) [2022-11-03 04:08:35,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:35,538 INFO L93 Difference]: Finished difference Result 119 states and 131 transitions. [2022-11-03 04:08:35,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:08:35,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) 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 [2022-11-03 04:08:35,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:35,540 INFO L225 Difference]: With dead ends: 119 [2022-11-03 04:08:35,541 INFO L226 Difference]: Without dead ends: 119 [2022-11-03 04:08:35,547 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 [2022-11-03 04:08:35,550 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 97 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:35,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 68 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:35,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-03 04:08:35,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 109. [2022-11-03 04:08:35,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 57 states have (on average 2.1052631578947367) internal successors, (120), 108 states have internal predecessors, (120), 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) [2022-11-03 04:08:35,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 120 transitions. [2022-11-03 04:08:35,560 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 120 transitions. Word has length 11 [2022-11-03 04:08:35,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:35,560 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 120 transitions. [2022-11-03 04:08:35,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) 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) [2022-11-03 04:08:35,561 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 120 transitions. [2022-11-03 04:08:35,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 04:08:35,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:35,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:35,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 04:08:35,562 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:08:35,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:35,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1669110860, now seen corresponding path program 1 times [2022-11-03 04:08:35,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:35,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679653185] [2022-11-03 04:08:35,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:35,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:35,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:35,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:35,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679653185] [2022-11-03 04:08:35,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679653185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:35,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299300897] [2022-11-03 04:08:35,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:35,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:35,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:35,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:35,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 04:08:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:35,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-03 04:08:35,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:35,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:35,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:35,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:35,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299300897] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:35,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [562477100] [2022-11-03 04:08:36,031 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-03 04:08:36,031 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:36,037 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:36,044 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:36,044 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:36,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 04:08:36,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-03 04:08:36,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,337 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:36,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:08:36,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:08:36,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:36,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:08:36,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:08:36,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:36,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:36,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,648 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:36,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:36,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:08:36,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:08:36,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:08:36,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:08:36,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:36,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:37,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:08:37,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:37,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:37,272 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 04:08:37,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 395 treesize of output 376 [2022-11-03 04:08:37,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:37,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:37,344 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 04:08:37,345 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:37,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:37,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:37,408 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 04:08:37,409 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:37,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,653 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:37,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:08:37,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:08:37,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,778 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:08:37,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:37,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:08:37,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:37,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:08:38,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:38,043 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:38,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:38,072 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 04:08:38,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:38,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:38,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:38,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:38,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:38,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:38,123 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 04:08:38,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 395 treesize of output 376 [2022-11-03 04:08:38,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:38,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:38,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:38,173 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-11-03 04:08:38,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:38,795 INFO L356 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-03 04:08:38,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:39,337 INFO L356 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2022-11-03 04:08:39,338 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:39,411 INFO L356 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2022-11-03 04:08:39,412 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 396 treesize of output 387 [2022-11-03 04:08:39,473 INFO L356 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2022-11-03 04:08:39,474 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 396 treesize of output 387 [2022-11-03 04:08:39,583 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:43,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [562477100] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:43,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:08:43,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3, 3] total 10 [2022-11-03 04:08:43,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317643143] [2022-11-03 04:08:43,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:43,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:08:43,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:43,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:08:43,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-03 04:08:43,817 INFO L87 Difference]: Start difference. First operand 109 states and 120 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) [2022-11-03 04:08:45,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:45,035 INFO L93 Difference]: Finished difference Result 120 states and 132 transitions. [2022-11-03 04:08:45,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:08:45,035 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 [2022-11-03 04:08:45,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:45,036 INFO L225 Difference]: With dead ends: 120 [2022-11-03 04:08:45,036 INFO L226 Difference]: Without dead ends: 120 [2022-11-03 04:08:45,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:08:45,038 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 9 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:45,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 178 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 04:08:45,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-11-03 04:08:45,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 116. [2022-11-03 04:08:45,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 64 states have (on average 2.0) internal successors, (128), 115 states have internal predecessors, (128), 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) [2022-11-03 04:08:45,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 128 transitions. [2022-11-03 04:08:45,044 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 128 transitions. Word has length 11 [2022-11-03 04:08:45,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:45,045 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 128 transitions. [2022-11-03 04:08:45,045 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) [2022-11-03 04:08:45,045 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 128 transitions. [2022-11-03 04:08:45,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 04:08:45,046 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:45,046 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-03 04:08:45,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:45,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:45,259 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:08:45,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:45,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1653804392, now seen corresponding path program 1 times [2022-11-03 04:08:45,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:45,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609972210] [2022-11-03 04:08:45,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:45,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:45,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:45,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609972210] [2022-11-03 04:08:45,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609972210] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:45,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311899116] [2022-11-03 04:08:45,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:45,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:45,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:45,501 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:45,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 04:08:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:45,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 04:08:45,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:45,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:45,687 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:08:45,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:45,703 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:45,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:45,835 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:45,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311899116] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:45,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1758162212] [2022-11-03 04:08:45,839 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-03 04:08:45,839 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:45,840 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:45,840 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:45,840 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:45,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:45,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:45,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 04:08:45,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:45,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:45,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:45,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:45,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:45,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-03 04:08:45,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:45,968 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:45,981 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:08:45,991 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:08:46,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,025 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:46,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:08:46,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:08:46,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:46,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:46,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:46,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:46,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,282 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-03 04:08:46,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,308 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:08:46,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-03 04:08:46,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:08:46,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,401 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:46,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:08:46,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:46,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:46,622 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 04:08:46,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:46,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:46,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:46,684 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 04:08:46,685 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:46,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:46,728 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 04:08:46,729 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 387 treesize of output 368 [2022-11-03 04:08:46,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,910 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:46,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:46,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-03 04:08:47,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-03 04:08:47,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:08:47,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,096 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:08:47,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,127 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:47,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:08:47,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:47,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:47,288 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 04:08:47,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:47,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:47,330 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 04:08:47,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 387 treesize of output 368 [2022-11-03 04:08:47,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:47,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:47,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:08:47,375 INFO L356 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-03 04:08:47,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:47,818 INFO L356 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-11-03 04:08:47,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:48,196 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:08:48,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 396 treesize of output 387 [2022-11-03 04:08:48,255 INFO L356 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-03 04:08:48,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:48,289 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:08:48,290 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 396 treesize of output 387 [2022-11-03 04:08:48,376 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:08:52,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1758162212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:52,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:08:52,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 3, 4] total 13 [2022-11-03 04:08:52,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577299831] [2022-11-03 04:08:52,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:52,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:08:52,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:52,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:08:52,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2022-11-03 04:08:52,569 INFO L87 Difference]: Start difference. First operand 116 states and 128 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) [2022-11-03 04:08:53,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:53,977 INFO L93 Difference]: Finished difference Result 118 states and 130 transitions. [2022-11-03 04:08:53,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 04:08:53,978 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 [2022-11-03 04:08:53,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:53,979 INFO L225 Difference]: With dead ends: 118 [2022-11-03 04:08:53,979 INFO L226 Difference]: Without dead ends: 118 [2022-11-03 04:08:53,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-11-03 04:08:53,980 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 9 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:53,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 197 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-03 04:08:53,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-11-03 04:08:53,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2022-11-03 04:08:53,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 65 states have (on average 1.9846153846153847) internal successors, (129), 116 states have internal predecessors, (129), 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) [2022-11-03 04:08:53,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 129 transitions. [2022-11-03 04:08:53,985 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 129 transitions. Word has length 15 [2022-11-03 04:08:53,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:53,986 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 129 transitions. [2022-11-03 04:08:53,986 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) [2022-11-03 04:08:53,986 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 129 transitions. [2022-11-03 04:08:53,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-03 04:08:53,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:53,987 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:54,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:08:54,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:54,215 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:08:54,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:54,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1644873912, now seen corresponding path program 1 times [2022-11-03 04:08:54,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:54,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412445636] [2022-11-03 04:08:54,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:54,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:54,387 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 04:08:54,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:54,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412445636] [2022-11-03 04:08:54,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412445636] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:08:54,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:08:54,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 04:08:54,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802465443] [2022-11-03 04:08:54,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:08:54,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:08:54,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:08:54,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:08:54,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:08:54,390 INFO L87 Difference]: Start difference. First operand 117 states and 129 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:54,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:08:54,505 INFO L93 Difference]: Finished difference Result 114 states and 126 transitions. [2022-11-03 04:08:54,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:08:54,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-03 04:08:54,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:08:54,507 INFO L225 Difference]: With dead ends: 114 [2022-11-03 04:08:54,507 INFO L226 Difference]: Without dead ends: 114 [2022-11-03 04:08:54,508 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 [2022-11-03 04:08:54,508 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 97 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:08:54,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 64 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:08:54,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-03 04:08:54,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-11-03 04:08:54,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 65 states have (on average 1.9384615384615385) internal successors, (126), 113 states have internal predecessors, (126), 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) [2022-11-03 04:08:54,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 126 transitions. [2022-11-03 04:08:54,514 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 126 transitions. Word has length 19 [2022-11-03 04:08:54,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:08:54,515 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 126 transitions. [2022-11-03 04:08:54,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:08:54,515 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 126 transitions. [2022-11-03 04:08:54,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 04:08:54,516 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:08:54,516 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:08:54,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:08:54,517 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:08:54,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:08:54,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1156837450, now seen corresponding path program 1 times [2022-11-03 04:08:54,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:08:54,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750967105] [2022-11-03 04:08:54,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:54,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:08:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:55,055 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:08:55,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:08:55,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750967105] [2022-11-03 04:08:55,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750967105] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:08:55,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711225978] [2022-11-03 04:08:55,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:08:55,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:08:55,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:08:55,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:08:55,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 04:08:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:08:55,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-03 04:08:55,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:08:55,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:55,285 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-03 04:08:55,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-11-03 04:08:55,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:55,396 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-03 04:08:55,458 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 04:08:55,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:55,484 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:08:55,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:08:59,817 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dll_create_~new_head~0#1.base_27| Int) (v_ArrVal_381 Int) (v_ArrVal_380 Int) (|v_ULTIMATE.start_dll_create_~new_head~0#1.base_28| Int)) (let ((.cse0 (store (store |c_#valid| |v_ULTIMATE.start_dll_create_~new_head~0#1.base_28| v_ArrVal_380) |v_ULTIMATE.start_dll_create_~new_head~0#1.base_27| v_ArrVal_381))) (or (not (< |v_ULTIMATE.start_dll_create_~new_head~0#1.base_27| |c_#StackHeapBarrier|)) (not (= (select .cse0 |v_ULTIMATE.start_dll_create_~new_head~0#1.base_28|) 1)) (= (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) 1)))) is different from false [2022-11-03 04:08:59,819 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2022-11-03 04:08:59,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711225978] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:08:59,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1493673282] [2022-11-03 04:08:59,822 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-03 04:08:59,822 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:08:59,823 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:08:59,823 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:08:59,823 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:08:59,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:59,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:59,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 04:08:59,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:59,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:59,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:59,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:59,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:59,891 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-03 04:08:59,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:08:59,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:08:59,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:08:59,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:08:59,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:08:59,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,001 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:00,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:00,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:00,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,071 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:00,087 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:00,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:00,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:09:00,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-03 04:09:00,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-03 04:09:00,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,348 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:09:00,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:09:00,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:00,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:00,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:00,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,540 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:00,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:00,612 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:00,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:00,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:00,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:00,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,108 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 04:09:01,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,206 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:09:01,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,232 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:09:01,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:09:01,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,310 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:09:01,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,340 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:09:01,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,650 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,716 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:09:01,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:09:01,741 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:09:01,749 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:09:01,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:09:01,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:01,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:01,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,829 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,839 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:01,875 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-03 04:09:01,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:01,903 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 04:09:01,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:01,921 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:01,938 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 04:09:01,938 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:02,026 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:09:02,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:09:02,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:09:02,067 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:09:02,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:09:02,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:02,106 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:02,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:02,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:02,152 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:02,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:02,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:02,205 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 04:09:02,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:02,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-03 04:09:02,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:02,253 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 04:09:02,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:02,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:09:02,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:09:02,489 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:09:02,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,508 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:09:02,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:09:02,596 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:09:02,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,637 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:09:02,637 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:09:02,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,681 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:09:02,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:09:02,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,751 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:02,774 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:09:02,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:09:02,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:09:02,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:02,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:02,848 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:09:02,848 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:09:02,913 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:09:02,921 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:09:02,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:09:02,953 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:09:02,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:09:03,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:03,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:03,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:03,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:03,076 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:09:03,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:03,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:03,194 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:09:03,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:03,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:03,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:03,222 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:09:03,223 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:03,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:09:03,323 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:09:08,035 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2453#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~mid_index~0#1| (ite (and (not (= (mod |ULTIMATE.start_main_~len~0#1| 2) 0)) (< |ULTIMATE.start_main_~len~0#1| 0)) (+ (div |ULTIMATE.start_main_~len~0#1| 2) 1) (div |ULTIMATE.start_main_~len~0#1| 2))) (= |ULTIMATE.start_node_create_~data#1| |ULTIMATE.start_node_create_#in~data#1|) (= (select (select |#memory_int| |ULTIMATE.start_node_create_~temp~0#1.base|) |ULTIMATE.start_node_create_~temp~0#1.offset|) |ULTIMATE.start_node_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|) (= (select |#valid| |ULTIMATE.start_node_create_~temp~0#1.base|) 1) (= |ULTIMATE.start_main_~#s~0#1.offset| |ULTIMATE.start_dll_insert_#in~head#1.offset|) (= |ULTIMATE.start_node_create_#res#1.base| |ULTIMATE.start_dll_insert_~new_node~0#1.base|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (= |ULTIMATE.start_dll_insert_#in~data#1| |ULTIMATE.start_dll_insert_~data#1|) (= |ULTIMATE.start_node_create_~temp~0#1.offset| |ULTIMATE.start_node_create_#res#1.offset|) (= |ULTIMATE.start_dll_insert_~snd_to_last~0#1.offset| 0) (= |ULTIMATE.start_dll_insert_#in~index#1| |ULTIMATE.start_main_~mid_index~0#1|) (= 12 (select |#length| |ULTIMATE.start_node_create_~temp~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 8)) 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_create_#res#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= |ULTIMATE.start_main_~uneq~0#1| |ULTIMATE.start_dll_insert_#in~data#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_dll_create_#res#1.offset|) (= |ULTIMATE.start_node_create_#res#1.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_dll_insert_#in~head#1.base| |ULTIMATE.start_dll_insert_~head#1.base|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_node_create_#in~data#1| |ULTIMATE.start_dll_insert_~data#1|) (= |ULTIMATE.start_dll_insert_~new_node~0#1.offset| |ULTIMATE.start_node_create_#res#1.offset|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (not (= (select |#valid| |ULTIMATE.start_dll_insert_~head#1.base|) 1)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 4)) 0) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (< |ULTIMATE.start_node_create_~temp~0#1.base| |#StackHeapBarrier|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 8)) 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= |ULTIMATE.start_dll_insert_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_insert_~index#1| |ULTIMATE.start_dll_insert_#in~index#1|) (= |ULTIMATE.start_dll_insert_~snd_to_last~0#1.base| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (not (= |ULTIMATE.start_node_create_~temp~0#1.base| 0)) (= |ULTIMATE.start_dll_insert_~head#1.offset| |ULTIMATE.start_dll_insert_#in~head#1.offset|) (= |#NULL.base| 0))' at error location [2022-11-03 04:09:08,035 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:09:08,035 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:09:08,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-03 04:09:08,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714768942] [2022-11-03 04:09:08,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:09:08,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-03 04:09:08,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:08,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-03 04:09:08,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=541, Unknown=2, NotChecked=48, Total=702 [2022-11-03 04:09:08,038 INFO L87 Difference]: Start difference. First operand 114 states and 126 transitions. Second operand has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 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) [2022-11-03 04:09:08,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:08,254 INFO L93 Difference]: Finished difference Result 117 states and 130 transitions. [2022-11-03 04:09:08,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:09:08,255 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 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) Word has length 22 [2022-11-03 04:09:08,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:08,256 INFO L225 Difference]: With dead ends: 117 [2022-11-03 04:09:08,256 INFO L226 Difference]: Without dead ends: 117 [2022-11-03 04:09:08,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 45 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=125, Invalid=579, Unknown=2, NotChecked=50, Total=756 [2022-11-03 04:09:08,258 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 661 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 127 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:08,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 79 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 115 Invalid, 0 Unknown, 127 Unchecked, 0.2s Time] [2022-11-03 04:09:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-03 04:09:08,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 107. [2022-11-03 04:09:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 65 states have (on average 1.8307692307692307) internal successors, (119), 106 states have internal predecessors, (119), 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) [2022-11-03 04:09:08,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 119 transitions. [2022-11-03 04:09:08,263 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 119 transitions. Word has length 22 [2022-11-03 04:09:08,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:08,263 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 119 transitions. [2022-11-03 04:09:08,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 14 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) [2022-11-03 04:09:08,263 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 119 transitions. [2022-11-03 04:09:08,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 04:09:08,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:08,264 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:08,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:08,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:08,465 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:08,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:08,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1156837451, now seen corresponding path program 1 times [2022-11-03 04:09:08,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:08,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831026073] [2022-11-03 04:09:08,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:08,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:09,061 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-03 04:09:09,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:09,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831026073] [2022-11-03 04:09:09,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831026073] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:09,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729663603] [2022-11-03 04:09:09,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:09,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:09,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:09,067 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:09,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 04:09:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:09,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 04:09:09,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:09,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:09,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:09,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:09,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-03 04:09:09,305 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 04:09:09,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-03 04:09:09,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:09,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-03 04:09:09,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:09,450 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-03 04:09:09,474 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-03 04:09:09,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:13,783 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_dll_create_~new_head~0#1.base_33| Int)) (or (forall ((v_ArrVal_522 Int) (|v_ULTIMATE.start_node_create_~temp~0#1.base_25| Int)) (or (not (< |v_ULTIMATE.start_node_create_~temp~0#1.base_25| |c_#StackHeapBarrier|)) (forall ((v_ArrVal_523 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_33| v_ArrVal_522) |v_ULTIMATE.start_node_create_~temp~0#1.base_25| v_ArrVal_523) |c_ULTIMATE.start_main_~#s~0#1.base|))))) (not (< |v_ULTIMATE.start_dll_create_~new_head~0#1.base_33| |c_#StackHeapBarrier|)))) (<= 0 |c_ULTIMATE.start_main_~#s~0#1.offset|)) is different from false [2022-11-03 04:09:14,050 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2022-11-03 04:09:14,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729663603] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:09:14,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1817721977] [2022-11-03 04:09:14,053 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-11-03 04:09:14,053 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:09:14,053 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:09:14,054 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:09:14,054 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:09:14,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,083 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 04:09:14,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-03 04:09:14,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:09:14,181 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:09:14,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:14,216 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:14,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,299 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:09:14,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:09:14,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:09:14,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,548 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:09:14,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,592 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:09:14,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,662 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,699 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,766 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:14,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:14,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:15,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,173 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:15,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:09:15,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:09:15,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:09:15,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:09:15,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:09:15,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:15,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:15,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:15,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,505 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:15,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,588 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:15,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:15,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:15,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:15,987 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:09:16,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:09:16,095 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:09:16,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:16,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:09:16,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:16,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:09:16,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:09:16,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:16,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:16,226 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:09:16,226 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:09:16,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:16,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:16,257 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:09:16,258 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:09:16,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:16,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:16,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:16,351 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:09:16,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:09:16,383 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:09:16,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:16,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:16,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:09:16,437 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:09:16,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:09:16,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:09:16,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:09:16,558 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:09:16,573 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:09:16,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:09:16,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:09:16,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:16,650 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:16,678 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:09:16,690 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:09:16,701 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:09:16,723 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:09:21,957 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2829#(and (<= 1 |ULTIMATE.start_dll_create_~data#1|) (= |ULTIMATE.start_main_~mid_index~0#1| (ite (and (not (= (mod |ULTIMATE.start_main_~len~0#1| 2) 0)) (< |ULTIMATE.start_main_~len~0#1| 0)) (+ (div |ULTIMATE.start_main_~len~0#1| 2) 1) (div |ULTIMATE.start_main_~len~0#1| 2))) (= |ULTIMATE.start_node_create_~data#1| |ULTIMATE.start_node_create_#in~data#1|) (= (select (select |#memory_int| |ULTIMATE.start_node_create_~temp~0#1.base|) |ULTIMATE.start_node_create_~temp~0#1.offset|) |ULTIMATE.start_node_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|) (= (select |#valid| |ULTIMATE.start_node_create_~temp~0#1.base|) 1) (= |ULTIMATE.start_main_~#s~0#1.offset| |ULTIMATE.start_dll_insert_#in~head#1.offset|) (= |ULTIMATE.start_node_create_#res#1.base| |ULTIMATE.start_dll_insert_~new_node~0#1.base|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (= |ULTIMATE.start_dll_insert_#in~data#1| |ULTIMATE.start_dll_insert_~data#1|) (= |ULTIMATE.start_node_create_~temp~0#1.offset| |ULTIMATE.start_node_create_#res#1.offset|) (= |ULTIMATE.start_dll_insert_~snd_to_last~0#1.offset| 0) (not (<= (+ |ULTIMATE.start_dll_insert_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_insert_~head#1.base|))) (= |ULTIMATE.start_dll_insert_#in~index#1| |ULTIMATE.start_main_~mid_index~0#1|) (= 12 (select |#length| |ULTIMATE.start_node_create_~temp~0#1.base|)) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 4)) 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 8)) 0) (<= |ULTIMATE.start_dll_create_~data#1| 1) (= |ULTIMATE.start_dll_create_#res#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|)) (= |ULTIMATE.start_dll_create_~head~0#1.base| |ULTIMATE.start_dll_create_#res#1.base|) (= |ULTIMATE.start_main_~uneq~0#1| |ULTIMATE.start_dll_insert_#in~data#1|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) |ULTIMATE.start_dll_create_#res#1.offset|) (or (and (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (= |ULTIMATE.start_dll_create_~head~0#1.base| 0) (= |#NULL.base| 0)) (and (= |ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (= |#NULL.base| 0))) (= |ULTIMATE.start_node_create_#res#1.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (= |ULTIMATE.start_dll_insert_#in~head#1.base| |ULTIMATE.start_dll_insert_~head#1.base|) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_node_create_#in~data#1| |ULTIMATE.start_dll_insert_~data#1|) (= |ULTIMATE.start_dll_insert_~new_node~0#1.offset| |ULTIMATE.start_node_create_#res#1.offset|) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 4)) 0) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (< |ULTIMATE.start_node_create_~temp~0#1.base| |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_node_create_~temp~0#1.base|) (+ |ULTIMATE.start_node_create_~temp~0#1.offset| 8)) 0) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= |ULTIMATE.start_dll_insert_#in~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (= |ULTIMATE.start_dll_insert_~index#1| |ULTIMATE.start_dll_insert_#in~index#1|) (= |ULTIMATE.start_dll_insert_~snd_to_last~0#1.base| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (not (= |ULTIMATE.start_node_create_~temp~0#1.base| 0)) (= |ULTIMATE.start_dll_insert_~head#1.offset| |ULTIMATE.start_dll_insert_#in~head#1.offset|))' at error location [2022-11-03 04:09:21,957 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:09:21,957 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:09:21,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 8 [2022-11-03 04:09:21,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126983820] [2022-11-03 04:09:21,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:09:21,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 04:09:21,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:21,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 04:09:21,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=341, Unknown=1, NotChecked=38, Total=462 [2022-11-03 04:09:21,959 INFO L87 Difference]: Start difference. First operand 107 states and 119 transitions. Second operand has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:22,240 INFO L93 Difference]: Finished difference Result 110 states and 123 transitions. [2022-11-03 04:09:22,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 04:09:22,240 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-03 04:09:22,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:22,242 INFO L225 Difference]: With dead ends: 110 [2022-11-03 04:09:22,242 INFO L226 Difference]: Without dead ends: 110 [2022-11-03 04:09:22,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=108, Invalid=447, Unknown=1, NotChecked=44, Total=600 [2022-11-03 04:09:22,243 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 283 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 100 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:22,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 38 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 105 Invalid, 0 Unknown, 100 Unchecked, 0.2s Time] [2022-11-03 04:09:22,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-11-03 04:09:22,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 100. [2022-11-03 04:09:22,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 65 states have (on average 1.7230769230769232) internal successors, (112), 99 states have internal predecessors, (112), 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) [2022-11-03 04:09:22,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2022-11-03 04:09:22,248 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 22 [2022-11-03 04:09:22,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:22,248 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2022-11-03 04:09:22,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 04:09:22,249 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2022-11-03 04:09:22,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 04:09:22,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:22,250 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2022-11-03 04:09:22,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 04:09:22,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 04:09:22,471 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:22,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:22,472 INFO L85 PathProgramCache]: Analyzing trace with hash 385288452, now seen corresponding path program 1 times [2022-11-03 04:09:22,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:22,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903316763] [2022-11-03 04:09:22,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:22,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:22,611 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:22,612 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:22,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903316763] [2022-11-03 04:09:22,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903316763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:22,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:22,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:09:22,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163700124] [2022-11-03 04:09:22,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:22,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:09:22,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:22,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:09:22,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:09:22,615 INFO L87 Difference]: Start difference. First operand 100 states and 112 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 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) [2022-11-03 04:09:22,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:22,661 INFO L93 Difference]: Finished difference Result 94 states and 103 transitions. [2022-11-03 04:09:22,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:09:22,662 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 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 [2022-11-03 04:09:22,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:22,663 INFO L225 Difference]: With dead ends: 94 [2022-11-03 04:09:22,663 INFO L226 Difference]: Without dead ends: 92 [2022-11-03 04:09:22,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:09:22,664 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 258 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:22,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 93 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:09:22,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-03 04:09:22,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-03 04:09:22,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 91 states have internal predecessors, (101), 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) [2022-11-03 04:09:22,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2022-11-03 04:09:22,668 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 23 [2022-11-03 04:09:22,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:22,669 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2022-11-03 04:09:22,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 4 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) [2022-11-03 04:09:22,669 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2022-11-03 04:09:22,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 04:09:22,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:22,670 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:22,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 04:09:22,671 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:22,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:22,671 INFO L85 PathProgramCache]: Analyzing trace with hash -675566594, now seen corresponding path program 1 times [2022-11-03 04:09:22,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:22,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024559923] [2022-11-03 04:09:22,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:22,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:23,222 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 04:09:23,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:23,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024559923] [2022-11-03 04:09:23,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024559923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:23,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:23,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 04:09:23,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044620240] [2022-11-03 04:09:23,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:23,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 04:09:23,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:23,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 04:09:23,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-03 04:09:23,228 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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) [2022-11-03 04:09:23,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:23,661 INFO L93 Difference]: Finished difference Result 168 states and 188 transitions. [2022-11-03 04:09:23,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 04:09:23,661 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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 24 [2022-11-03 04:09:23,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:23,663 INFO L225 Difference]: With dead ends: 168 [2022-11-03 04:09:23,663 INFO L226 Difference]: Without dead ends: 168 [2022-11-03 04:09:23,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-11-03 04:09:23,664 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 456 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:23,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 130 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 04:09:23,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-11-03 04:09:23,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 100. [2022-11-03 04:09:23,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 67 states have (on average 1.791044776119403) internal successors, (120), 99 states have internal predecessors, (120), 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) [2022-11-03 04:09:23,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 120 transitions. [2022-11-03 04:09:23,669 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 120 transitions. Word has length 24 [2022-11-03 04:09:23,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:23,669 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 120 transitions. [2022-11-03 04:09:23,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 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) [2022-11-03 04:09:23,670 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 120 transitions. [2022-11-03 04:09:23,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 04:09:23,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:23,670 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:23,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 04:09:23,671 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:23,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:23,671 INFO L85 PathProgramCache]: Analyzing trace with hash -675566593, now seen corresponding path program 1 times [2022-11-03 04:09:23,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:23,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398768679] [2022-11-03 04:09:23,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:23,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:09:24,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:24,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398768679] [2022-11-03 04:09:24,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398768679] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:24,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:24,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 04:09:24,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263159164] [2022-11-03 04:09:24,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:24,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 04:09:24,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:24,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 04:09:24,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-03 04:09:24,275 INFO L87 Difference]: Start difference. First operand 100 states and 120 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) 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) [2022-11-03 04:09:24,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:24,686 INFO L93 Difference]: Finished difference Result 158 states and 176 transitions. [2022-11-03 04:09:24,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 04:09:24,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) 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 [2022-11-03 04:09:24,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:24,688 INFO L225 Difference]: With dead ends: 158 [2022-11-03 04:09:24,688 INFO L226 Difference]: Without dead ends: 158 [2022-11-03 04:09:24,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-03 04:09:24,689 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 417 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:24,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 106 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:09:24,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-03 04:09:24,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 100. [2022-11-03 04:09:24,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 67 states have (on average 1.7611940298507462) internal successors, (118), 99 states have internal predecessors, (118), 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) [2022-11-03 04:09:24,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 118 transitions. [2022-11-03 04:09:24,693 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 118 transitions. Word has length 24 [2022-11-03 04:09:24,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:24,694 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 118 transitions. [2022-11-03 04:09:24,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) 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) [2022-11-03 04:09:24,694 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 118 transitions. [2022-11-03 04:09:24,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 04:09:24,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:24,695 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:24,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-03 04:09:24,695 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:24,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:24,696 INFO L85 PathProgramCache]: Analyzing trace with hash 532451152, now seen corresponding path program 1 times [2022-11-03 04:09:24,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:24,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207865202] [2022-11-03 04:09:24,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:24,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:24,767 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 04:09:24,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:24,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207865202] [2022-11-03 04:09:24,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207865202] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:24,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:24,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:09:24,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320913680] [2022-11-03 04:09:24,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:24,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:09:24,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:24,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:09:24,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:09:24,770 INFO L87 Difference]: Start difference. First operand 100 states and 118 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2022-11-03 04:09:24,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:24,827 INFO L93 Difference]: Finished difference Result 136 states and 151 transitions. [2022-11-03 04:09:24,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:09:24,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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 [2022-11-03 04:09:24,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:24,828 INFO L225 Difference]: With dead ends: 136 [2022-11-03 04:09:24,829 INFO L226 Difference]: Without dead ends: 136 [2022-11-03 04:09:24,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:09:24,830 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 59 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:24,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 138 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:09:24,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-03 04:09:24,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 95. [2022-11-03 04:09:24,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 62 states have (on average 1.6935483870967742) internal successors, (105), 94 states have internal predecessors, (105), 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) [2022-11-03 04:09:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 105 transitions. [2022-11-03 04:09:24,836 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 105 transitions. Word has length 25 [2022-11-03 04:09:24,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:24,839 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 105 transitions. [2022-11-03 04:09:24,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2022-11-03 04:09:24,839 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 105 transitions. [2022-11-03 04:09:24,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:09:24,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:24,842 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:09:24,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-03 04:09:24,842 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:24,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:24,843 INFO L85 PathProgramCache]: Analyzing trace with hash -679271128, now seen corresponding path program 1 times [2022-11-03 04:09:24,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:24,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134035291] [2022-11-03 04:09:24,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:24,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:25,103 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 04:09:25,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:25,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134035291] [2022-11-03 04:09:25,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134035291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:25,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:25,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:09:25,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332780337] [2022-11-03 04:09:25,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:25,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:09:25,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:25,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:09:25,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:09:25,107 INFO L87 Difference]: Start difference. First operand 95 states and 105 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 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) [2022-11-03 04:09:25,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:25,170 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2022-11-03 04:09:25,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:09:25,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 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 [2022-11-03 04:09:25,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:25,172 INFO L225 Difference]: With dead ends: 92 [2022-11-03 04:09:25,172 INFO L226 Difference]: Without dead ends: 92 [2022-11-03 04:09:25,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-03 04:09:25,176 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 231 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:25,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 85 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:09:25,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-03 04:09:25,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-03 04:09:25,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 61 states have (on average 1.6557377049180328) internal successors, (101), 91 states have internal predecessors, (101), 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) [2022-11-03 04:09:25,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2022-11-03 04:09:25,181 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 26 [2022-11-03 04:09:25,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:25,182 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2022-11-03 04:09:25,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 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) [2022-11-03 04:09:25,182 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2022-11-03 04:09:25,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:09:25,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:25,186 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] [2022-11-03 04:09:25,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-03 04:09:25,186 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:25,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:25,187 INFO L85 PathProgramCache]: Analyzing trace with hash -673863548, now seen corresponding path program 1 times [2022-11-03 04:09:25,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:25,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004012677] [2022-11-03 04:09:25,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:25,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 04:09:25,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:25,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004012677] [2022-11-03 04:09:25,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004012677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:25,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:25,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:09:25,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013547767] [2022-11-03 04:09:25,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:25,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:09:25,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:25,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:09:25,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:09:25,322 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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) [2022-11-03 04:09:25,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:25,447 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2022-11-03 04:09:25,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:09:25,447 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 [2022-11-03 04:09:25,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:25,448 INFO L225 Difference]: With dead ends: 99 [2022-11-03 04:09:25,448 INFO L226 Difference]: Without dead ends: 99 [2022-11-03 04:09:25,449 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 [2022-11-03 04:09:25,449 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 142 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:25,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 64 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:09:25,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2022-11-03 04:09:25,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 89. [2022-11-03 04:09:25,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 61 states have (on average 1.6065573770491803) internal successors, (98), 88 states have internal predecessors, (98), 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) [2022-11-03 04:09:25,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2022-11-03 04:09:25,453 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 26 [2022-11-03 04:09:25,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:25,453 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2022-11-03 04:09:25,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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) [2022-11-03 04:09:25,453 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2022-11-03 04:09:25,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-03 04:09:25,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:25,454 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] [2022-11-03 04:09:25,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-03 04:09:25,454 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:25,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:25,457 INFO L85 PathProgramCache]: Analyzing trace with hash -673863547, now seen corresponding path program 1 times [2022-11-03 04:09:25,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:25,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598900411] [2022-11-03 04:09:25,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:25,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:25,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:25,598 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 04:09:25,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:25,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598900411] [2022-11-03 04:09:25,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598900411] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:25,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:25,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:09:25,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124968317] [2022-11-03 04:09:25,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:25,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:09:25,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:25,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:09:25,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:09:25,601 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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) [2022-11-03 04:09:25,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:25,661 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2022-11-03 04:09:25,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:09:25,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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 [2022-11-03 04:09:25,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:25,663 INFO L225 Difference]: With dead ends: 88 [2022-11-03 04:09:25,663 INFO L226 Difference]: Without dead ends: 88 [2022-11-03 04:09:25,663 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 [2022-11-03 04:09:25,664 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 80 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:25,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 137 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 04:09:25,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-03 04:09:25,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-11-03 04:09:25,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.6) internal successors, (96), 87 states have internal predecessors, (96), 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) [2022-11-03 04:09:25,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2022-11-03 04:09:25,668 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 26 [2022-11-03 04:09:25,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:25,670 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2022-11-03 04:09:25,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 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) [2022-11-03 04:09:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2022-11-03 04:09:25,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 04:09:25,676 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:25,676 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] [2022-11-03 04:09:25,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-03 04:09:25,678 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:25,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:25,679 INFO L85 PathProgramCache]: Analyzing trace with hash 417610598, now seen corresponding path program 1 times [2022-11-03 04:09:25,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:25,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842045704] [2022-11-03 04:09:25,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:25,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:25,775 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 04:09:25,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:25,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842045704] [2022-11-03 04:09:25,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842045704] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:25,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:25,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:09:25,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002221529] [2022-11-03 04:09:25,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:25,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:09:25,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:25,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:09:25,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:09:25,779 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-11-03 04:09:25,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:25,962 INFO L93 Difference]: Finished difference Result 136 states and 151 transitions. [2022-11-03 04:09:25,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 04:09:25,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 27 [2022-11-03 04:09:25,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:25,964 INFO L225 Difference]: With dead ends: 136 [2022-11-03 04:09:25,964 INFO L226 Difference]: Without dead ends: 136 [2022-11-03 04:09:25,964 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 [2022-11-03 04:09:25,965 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 109 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:25,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 117 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 04:09:25,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-03 04:09:25,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 87. [2022-11-03 04:09:25,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 60 states have (on average 1.5833333333333333) internal successors, (95), 86 states have internal predecessors, (95), 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) [2022-11-03 04:09:25,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 95 transitions. [2022-11-03 04:09:25,968 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 95 transitions. Word has length 27 [2022-11-03 04:09:25,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:25,968 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 95 transitions. [2022-11-03 04:09:25,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-11-03 04:09:25,969 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 95 transitions. [2022-11-03 04:09:25,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 04:09:25,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:25,969 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] [2022-11-03 04:09:25,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-03 04:09:25,969 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:25,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:25,970 INFO L85 PathProgramCache]: Analyzing trace with hash 417610599, now seen corresponding path program 1 times [2022-11-03 04:09:25,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:25,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937125916] [2022-11-03 04:09:25,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:25,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:26,129 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 04:09:26,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:26,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937125916] [2022-11-03 04:09:26,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937125916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:26,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:26,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:09:26,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066645604] [2022-11-03 04:09:26,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:26,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 04:09:26,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:26,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 04:09:26,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:09:26,134 INFO L87 Difference]: Start difference. First operand 87 states and 95 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-11-03 04:09:26,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:26,282 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2022-11-03 04:09:26,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:09:26,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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 27 [2022-11-03 04:09:26,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:26,283 INFO L225 Difference]: With dead ends: 86 [2022-11-03 04:09:26,283 INFO L226 Difference]: Without dead ends: 86 [2022-11-03 04:09:26,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 04:09:26,284 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 68 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:26,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 86 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:09:26,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-03 04:09:26,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-03 04:09:26,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 60 states have (on average 1.5666666666666667) internal successors, (94), 85 states have internal predecessors, (94), 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) [2022-11-03 04:09:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2022-11-03 04:09:26,287 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 27 [2022-11-03 04:09:26,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:26,287 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2022-11-03 04:09:26,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-11-03 04:09:26,288 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2022-11-03 04:09:26,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 04:09:26,289 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:26,289 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] [2022-11-03 04:09:26,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-03 04:09:26,290 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:26,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:26,290 INFO L85 PathProgramCache]: Analyzing trace with hash 61026715, now seen corresponding path program 1 times [2022-11-03 04:09:26,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:26,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243808792] [2022-11-03 04:09:26,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:26,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:26,516 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-03 04:09:26,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:26,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243808792] [2022-11-03 04:09:26,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243808792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:09:26,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:09:26,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 04:09:26,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213664438] [2022-11-03 04:09:26,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:09:26,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 04:09:26,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:09:26,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 04:09:26,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 04:09:26,520 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2022-11-03 04:09:26,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:09:26,632 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2022-11-03 04:09:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 04:09:26,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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 [2022-11-03 04:09:26,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:09:26,633 INFO L225 Difference]: With dead ends: 83 [2022-11-03 04:09:26,633 INFO L226 Difference]: Without dead ends: 83 [2022-11-03 04:09:26,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-03 04:09:26,634 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 209 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 04:09:26,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 58 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 04:09:26,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-03 04:09:26,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-03 04:09:26,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 60 states have (on average 1.5166666666666666) internal successors, (91), 82 states have internal predecessors, (91), 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) [2022-11-03 04:09:26,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2022-11-03 04:09:26,637 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 28 [2022-11-03 04:09:26,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:09:26,638 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2022-11-03 04:09:26,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 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) [2022-11-03 04:09:26,638 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2022-11-03 04:09:26,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 04:09:26,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:09:26,640 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] [2022-11-03 04:09:26,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-03 04:09:26,642 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:09:26,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:09:26,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1275737258, now seen corresponding path program 1 times [2022-11-03 04:09:26,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:09:26,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866990344] [2022-11-03 04:09:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:26,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:09:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:28,100 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:28,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:09:28,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866990344] [2022-11-03 04:09:28,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866990344] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:09:28,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995999189] [2022-11-03 04:09:28,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:09:28,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:09:28,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:09:28,102 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:09:28,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-03 04:09:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:09:28,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-03 04:09:28,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:09:28,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:28,541 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:09:28,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:28,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:09:28,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:09:28,764 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 04:09:28,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 35 [2022-11-03 04:09:28,912 INFO L356 Elim1Store]: treesize reduction 72, result has 37.4 percent of original size [2022-11-03 04:09:28,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 34 treesize of output 57 [2022-11-03 04:09:29,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:29,065 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:09:29,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 55 [2022-11-03 04:09:29,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:29,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-03 04:09:29,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:29,124 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-03 04:09:29,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:29,147 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:09:29,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 55 [2022-11-03 04:09:29,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:29,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-03 04:09:29,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:09:29,209 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:09:29,210 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 55 [2022-11-03 04:09:29,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-03 04:09:29,467 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:09:29,467 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 29 [2022-11-03 04:09:29,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:09:29,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:09:29,731 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1395 (Array Int Int)) (v_ArrVal_1394 (Array Int Int))) (= (select |c_#valid| (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1395))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1394) |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|) 4))) 1)) is different from false [2022-11-03 04:09:29,774 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 64 [2022-11-03 04:09:29,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-11-03 04:09:30,847 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:09:30,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 147 treesize of output 92 [2022-11-03 04:09:31,286 INFO L356 Elim1Store]: treesize reduction 152, result has 54.6 percent of original size [2022-11-03 04:09:31,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 2101 treesize of output 2029 [2022-11-03 04:09:31,433 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:09:31,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1893 treesize of output 1765 [2022-11-03 04:09:31,535 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:09:31,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1765 treesize of output 1707 [2022-11-03 04:14:45,583 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:14:45,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 54 [2022-11-03 04:14:45,588 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:14:45,621 INFO L356 Elim1Store]: treesize reduction 19, result has 54.8 percent of original size [2022-11-03 04:14:45,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 116 [2022-11-03 04:14:45,640 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:14:45,640 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 87 [2022-11-03 04:14:45,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2022-11-03 04:20:26,677 WARN L234 SmtUtils]: Spent 5.58m on a formula simplification. DAG size of input: 1061 DAG size of output: 64 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-03 04:20:27,289 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-03 04:20:27,289 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 53 treesize of output 47 [2022-11-03 04:20:27,327 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:20:27,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995999189] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:20:27,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2103581623] [2022-11-03 04:20:27,330 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-03 04:20:27,330 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:20:27,330 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:20:27,331 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:20:27,331 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:20:27,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 04:20:27,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-03 04:20:27,434 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:20:27,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:20:27,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:20:27,513 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:20:27,538 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,563 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:20:27,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-03 04:20:27,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,725 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-03 04:20:27,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,755 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:20:27,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,773 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:20:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,850 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,870 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:27,920 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:27,961 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:27,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:28,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:28,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,263 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:20:28,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:20:28,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:20:28,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,336 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:28,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:20:28,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:20:28,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:28,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:28,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:28,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:28,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:28,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,527 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:28,774 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:20:28,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:20:28,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,869 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:20:28,885 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:20:28,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,900 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:20:28,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,935 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:20:28,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:20:28,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:28,967 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:20:28,967 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:20:28,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:20:29,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:29,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:29,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:29,042 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:20:29,042 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:20:29,060 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:20:29,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:29,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:29,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:29,103 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:20:29,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:20:29,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:20:29,270 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:20:29,286 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:20:29,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:20:29,344 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-03 04:20:29,344 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-11-03 04:20:29,374 INFO L356 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-03 04:20:29,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:20:29,441 INFO L356 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2022-11-03 04:20:29,441 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 52 [2022-11-03 04:20:29,485 INFO L356 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2022-11-03 04:20:29,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2022-11-03 04:20:29,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:20:29,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:20:29,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:20:29,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:20:29,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:20:29,682 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:20:29,723 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:20:29,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:20:29,739 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:20:29,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:20:29,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:20:29,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:20:29,805 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:20:37,097 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5406#(and (<= |ULTIMATE.start_main_~uneq~0#1| 5) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 5 |ULTIMATE.start_dll_insert_~data#1|) (<= 5 |ULTIMATE.start_main_~uneq~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_insert_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 5 |ULTIMATE.start_node_create_#in~data#1|) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.offset|) (<= |ULTIMATE.start_dll_insert_~data#1| 5) (not (= (select |#valid| |ULTIMATE.start_dll_insert_~last~0#1.base|) 1)) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 5 |ULTIMATE.start_dll_insert_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_insert_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.base|) (<= |ULTIMATE.start_dll_insert_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_insert_~head#1.offset|) (<= 0 |ULTIMATE.start_dll_insert_~head#1.base|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) (<= |ULTIMATE.start_node_create_#in~data#1| 5) (<= |#NULL.base| 0) (<= 0 (+ 4 |ULTIMATE.start_dll_insert_~snd_to_last~0#1.offset|)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_node_create_~data#1| 5) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_node_create_~temp~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|) (<= |ULTIMATE.start_dll_insert_~index#1| 0) (<= |ULTIMATE.start_dll_insert_~new_node~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_dll_insert_~new_node~0#1.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|) (<= 5 |ULTIMATE.start_node_create_~data#1|))' at error location [2022-11-03 04:20:37,097 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:20:37,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:20:37,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 35 [2022-11-03 04:20:37,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614118431] [2022-11-03 04:20:37,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:20:37,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-03 04:20:37,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:20:37,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-03 04:20:37,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=2804, Unknown=4, NotChecked=108, Total=3192 [2022-11-03 04:20:37,100 INFO L87 Difference]: Start difference. First operand 83 states and 91 transitions. Second operand has 37 states, 36 states have (on average 2.5) internal successors, (90), 36 states have internal predecessors, (90), 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) [2022-11-03 04:20:37,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:20:37,808 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2022-11-03 04:20:37,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 04:20:37,808 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.5) internal successors, (90), 36 states have internal predecessors, (90), 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 [2022-11-03 04:20:37,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:20:37,809 INFO L225 Difference]: With dead ends: 82 [2022-11-03 04:20:37,809 INFO L226 Difference]: Without dead ends: 82 [2022-11-03 04:20:37,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1342 ImplicationChecksByTransitivity, 349.8s TimeCoverageRelationStatistics Valid=344, Invalid=3196, Unknown=4, NotChecked=116, Total=3660 [2022-11-03 04:20:37,810 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 40 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 421 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:20:37,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 542 Invalid, 827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 385 Invalid, 0 Unknown, 421 Unchecked, 0.4s Time] [2022-11-03 04:20:37,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-03 04:20:37,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-11-03 04:20:37,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.5) internal successors, (90), 81 states have internal predecessors, (90), 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) [2022-11-03 04:20:37,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2022-11-03 04:20:37,813 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 31 [2022-11-03 04:20:37,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:20:37,813 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2022-11-03 04:20:37,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.5) internal successors, (90), 36 states have internal predecessors, (90), 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) [2022-11-03 04:20:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2022-11-03 04:20:37,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 04:20:37,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:20:37,814 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] [2022-11-03 04:20:37,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-03 04:20:38,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:20:38,014 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:20:38,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:20:38,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1275737259, now seen corresponding path program 1 times [2022-11-03 04:20:38,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:20:38,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191639166] [2022-11-03 04:20:38,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:20:38,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:20:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:20:39,630 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:20:39,630 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:20:39,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191639166] [2022-11-03 04:20:39,631 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191639166] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:20:39,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84650480] [2022-11-03 04:20:39,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:20:39,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:20:39,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:20:39,632 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:20:39,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-03 04:20:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:20:39,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 85 conjunts are in the unsatisfiable core [2022-11-03 04:20:39,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:20:39,878 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:40,012 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-03 04:20:40,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:40,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:20:40,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:20:40,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:40,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:20:40,268 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 04:20:40,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65 treesize of output 62 [2022-11-03 04:20:40,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 41 [2022-11-03 04:20:40,440 INFO L356 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2022-11-03 04:20:40,440 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 44 [2022-11-03 04:20:40,471 INFO L356 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2022-11-03 04:20:40,472 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:20:40,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:40,575 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:20:40,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 65 [2022-11-03 04:20:40,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:40,584 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 04:20:40,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 47 [2022-11-03 04:20:40,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:40,620 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:20:40,621 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 65 [2022-11-03 04:20:40,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:40,631 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 04:20:40,631 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 47 [2022-11-03 04:20:40,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:40,673 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-03 04:20:40,673 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 77 treesize of output 65 [2022-11-03 04:20:40,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:20:40,683 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-03 04:20:40,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 47 [2022-11-03 04:20:40,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:20:40,805 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:20:40,805 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 85 treesize of output 45 [2022-11-03 04:20:40,814 INFO L356 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-11-03 04:20:40,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 25 [2022-11-03 04:20:40,837 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:20:40,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:20:40,981 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1587 (Array Int Int)) (v_ArrVal_1586 (Array Int Int))) (<= 0 (+ 8 (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1587))) (select (select .cse0 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1586) |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|)) (+ (select (select .cse0 |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|) 4)))))) (forall ((v_ArrVal_1587 (Array Int Int)) (v_ArrVal_1586 (Array Int Int))) (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1587)) (.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1586))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|)) (.cse3 (+ (select (select .cse1 |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|) 4))) (<= (+ 12 (select (select .cse1 .cse2) .cse3)) (select |c_#length| (select (select .cse4 .cse2) .cse3))))))) is different from false [2022-11-03 04:20:41,334 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:20:41,335 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 250 treesize of output 254 [2022-11-03 04:20:44,572 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:20:44,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 97 [2022-11-03 04:20:44,587 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:20:44,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 92 treesize of output 67 [2022-11-03 04:20:44,735 INFO L356 Elim1Store]: treesize reduction 27, result has 85.5 percent of original size [2022-11-03 04:20:44,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 1138 treesize of output 1086 [2022-11-03 04:20:44,815 INFO L356 Elim1Store]: treesize reduction 12, result has 7.7 percent of original size [2022-11-03 04:20:44,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2372 treesize of output 2274 [2022-11-03 04:20:44,953 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:20:44,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1916 treesize of output 1856 [2022-11-03 04:20:45,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2164 treesize of output 2086 [2022-11-03 04:20:45,055 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2110 treesize of output 2066 [2022-11-03 04:20:45,155 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:20:45,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 1602 treesize of output 1466 [2022-11-03 04:21:04,211 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:04,211 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 99 [2022-11-03 04:21:04,230 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:04,231 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 69 [2022-11-03 04:21:04,264 INFO L356 Elim1Store]: treesize reduction 3, result has 76.9 percent of original size [2022-11-03 04:21:04,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 340 treesize of output 332 [2022-11-03 04:21:04,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:04,730 INFO L356 Elim1Store]: treesize reduction 203, result has 48.2 percent of original size [2022-11-03 04:21:04,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 2496 treesize of output 2280 [2022-11-03 04:21:04,798 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:04,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1990 treesize of output 1810 [2022-11-03 04:21:04,837 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 853 treesize of output 789 [2022-11-03 04:21:04,897 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:04,898 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1869 treesize of output 1787 [2022-11-03 04:21:04,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1724 treesize of output 1488 [2022-11-03 04:21:08,344 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:08,344 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 99 [2022-11-03 04:21:08,362 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:08,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 94 treesize of output 69 [2022-11-03 04:21:08,391 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:08,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 340 treesize of output 335 [2022-11-03 04:21:08,401 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:08,831 INFO L356 Elim1Store]: treesize reduction 177, result has 54.8 percent of original size [2022-11-03 04:21:08,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 28 case distinctions, treesize of input 1632 treesize of output 1578 [2022-11-03 04:21:08,879 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 757 treesize of output 693 [2022-11-03 04:21:08,938 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:08,939 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1362 treesize of output 1280 [2022-11-03 04:21:08,989 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1180 treesize of output 1072 [2022-11-03 04:21:09,035 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:09,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1014 treesize of output 958 [2022-11-03 04:21:16,269 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:21:16,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 18 [2022-11-03 04:21:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 04:21:16,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84650480] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:21:16,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1671101758] [2022-11-03 04:21:16,327 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-03 04:21:16,328 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:21:16,328 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:21:16,328 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:21:16,328 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:21:16,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 04:21:16,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-03 04:21:16,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:16,412 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:16,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:16,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:16,491 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,642 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:16,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,666 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:21:16,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,683 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:16,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:16,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,741 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:16,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,831 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,894 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,916 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:16,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:16,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:17,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,170 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:17,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:17,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,235 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:21:17,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,249 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:17,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,279 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:17,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:17,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:17,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:17,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,369 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:17,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:17,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:17,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,458 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:17,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,475 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:17,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:17,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:17,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:21:17,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,819 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:21:17,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:17,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,882 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:17,882 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:21:17,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:17,915 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:17,915 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:21:17,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:17,978 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:18,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:18,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:18,004 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:18,020 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:21:18,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:21:18,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:18,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:18,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:18,063 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:21:18,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:21:18,204 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:18,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:18,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:18,274 INFO L356 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-03 04:21:18,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:21:18,312 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-03 04:21:18,313 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-11-03 04:21:18,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:18,391 INFO L356 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2022-11-03 04:21:18,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2022-11-03 04:21:18,436 INFO L356 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2022-11-03 04:21:18,436 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 52 [2022-11-03 04:21:18,456 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:18,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:18,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:18,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:18,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:18,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:18,644 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:18,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:18,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:18,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:18,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:18,688 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:21:18,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:18,741 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:21:18,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:18,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:18,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:18,762 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:21:18,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:18,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:21:18,838 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:21:26,901 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5817#(and (<= |ULTIMATE.start_main_~uneq~0#1| 5) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 5 |ULTIMATE.start_dll_insert_~data#1|) (<= 5 |ULTIMATE.start_main_~uneq~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (or (not (<= (+ |ULTIMATE.start_dll_insert_~last~0#1.offset| 12) (select |#length| |ULTIMATE.start_dll_insert_~last~0#1.base|))) (not (<= 0 (+ |ULTIMATE.start_dll_insert_~last~0#1.offset| 8)))) (<= |ULTIMATE.start_dll_insert_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 5 |ULTIMATE.start_node_create_#in~data#1|) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.offset|) (<= |ULTIMATE.start_dll_insert_~data#1| 5) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 5 |ULTIMATE.start_dll_insert_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_insert_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.base|) (<= |ULTIMATE.start_dll_insert_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_insert_~head#1.offset|) (<= 0 |ULTIMATE.start_dll_insert_~head#1.base|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) (<= |ULTIMATE.start_node_create_#in~data#1| 5) (<= |#NULL.base| 0) (<= 0 (+ 4 |ULTIMATE.start_dll_insert_~snd_to_last~0#1.offset|)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_node_create_~data#1| 5) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_node_create_~temp~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|) (<= |ULTIMATE.start_dll_insert_~index#1| 0) (<= |ULTIMATE.start_dll_insert_~new_node~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_dll_insert_~new_node~0#1.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|) (<= 5 |ULTIMATE.start_node_create_~data#1|))' at error location [2022-11-03 04:21:26,901 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:21:26,902 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:21:26,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 35 [2022-11-03 04:21:26,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968367737] [2022-11-03 04:21:26,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:21:26,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-03 04:21:26,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:21:26,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-03 04:21:26,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=2810, Unknown=4, NotChecked=108, Total=3192 [2022-11-03 04:21:26,904 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand has 37 states, 36 states have (on average 2.388888888888889) internal successors, (86), 36 states have internal predecessors, (86), 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) [2022-11-03 04:21:28,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:21:28,396 INFO L93 Difference]: Finished difference Result 81 states and 89 transitions. [2022-11-03 04:21:28,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 04:21:28,399 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.388888888888889) internal successors, (86), 36 states have internal predecessors, (86), 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 [2022-11-03 04:21:28,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:21:28,400 INFO L225 Difference]: With dead ends: 81 [2022-11-03 04:21:28,400 INFO L226 Difference]: Without dead ends: 81 [2022-11-03 04:21:28,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1420 ImplicationChecksByTransitivity, 13.9s TimeCoverageRelationStatistics Valid=408, Invalid=3624, Unknown=4, NotChecked=124, Total=4160 [2022-11-03 04:21:28,402 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 166 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 517 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 04:21:28,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 425 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 527 Invalid, 0 Unknown, 517 Unchecked, 0.5s Time] [2022-11-03 04:21:28,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-11-03 04:21:28,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-11-03 04:21:28,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 60 states have (on average 1.4833333333333334) internal successors, (89), 80 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) [2022-11-03 04:21:28,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 89 transitions. [2022-11-03 04:21:28,405 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 89 transitions. Word has length 31 [2022-11-03 04:21:28,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:21:28,406 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 89 transitions. [2022-11-03 04:21:28,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.388888888888889) internal successors, (86), 36 states have internal predecessors, (86), 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) [2022-11-03 04:21:28,406 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 89 transitions. [2022-11-03 04:21:28,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-03 04:21:28,406 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:21:28,407 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, 1] [2022-11-03 04:21:28,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-03 04:21:28,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:21:28,607 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:21:28,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:21:28,607 INFO L85 PathProgramCache]: Analyzing trace with hash -2110620606, now seen corresponding path program 1 times [2022-11-03 04:21:28,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:21:28,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447657108] [2022-11-03 04:21:28,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:21:28,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:21:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:21:28,880 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:21:28,880 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:21:28,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447657108] [2022-11-03 04:21:28,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447657108] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:21:28,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811584929] [2022-11-03 04:21:28,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:21:28,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:21:28,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:21:28,883 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:21:28,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-03 04:21:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:21:29,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 04:21:29,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:21:29,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-03 04:21:29,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-03 04:21:29,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-03 04:21:29,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-11-03 04:21:29,212 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-03 04:21:29,212 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-03 04:21:29,216 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-03 04:21:29,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:21:29,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 04:21:29,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811584929] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:21:29,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [538630540] [2022-11-03 04:21:29,349 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2022-11-03 04:21:29,349 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:21:29,349 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:21:29,349 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:21:29,350 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:21:29,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 04:21:29,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-03 04:21:29,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:29,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:29,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,464 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,475 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:29,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:29,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,516 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,528 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,630 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:21:29,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,646 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:29,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:29,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:29,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,756 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,775 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:29,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:29,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,168 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 04:21:30,169 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,225 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:30,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,243 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:30,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,260 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:21:30,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,296 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:30,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:30,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,385 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:30,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:30,564 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:30,570 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:30,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:30,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,609 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:30,616 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:30,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,651 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,676 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:30,687 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 04:21:30,687 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:30,711 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 04:21:30,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,726 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-03 04:21:30,782 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:30,788 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:30,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:30,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:30,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:30,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,835 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:30,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:30,857 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:30,906 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 04:21:30,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:30,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:30,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-03 04:21:30,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:30,943 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 04:21:30,943 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:31,032 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:31,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:31,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:31,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:21:31,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:21:31,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,173 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:31,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:21:31,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:31,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,221 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:31,221 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:21:31,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:31,284 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:21:31,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:21:31,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:31,327 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:21:31,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:21:31,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:31,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-03 04:21:31,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:31,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-11-03 04:21:31,571 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:31,582 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:31,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:31,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:31,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:31,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:31,688 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:21:31,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:31,719 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:31,731 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:31,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:21:31,789 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:21:31,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:31,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:31,811 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-03 04:21:31,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:31,873 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:21:37,461 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6220#(and (<= (+ |ULTIMATE.start_dll_insert_~head#1.offset| 4) (select |#length| |ULTIMATE.start_dll_insert_~head#1.base|)) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= 5 |ULTIMATE.start_dll_insert_~data#1|) (or (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_insert_~head#1.base|) |ULTIMATE.start_dll_insert_~head#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_insert_~head#1.base|) |ULTIMATE.start_dll_insert_~head#1.offset|) 0))) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_insert_#in~head#1.offset| 0) (= (select |#valid| |ULTIMATE.start_dll_insert_~new_node~0#1.base|) 1) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_insert_~new_node~0#1.base|) (+ |ULTIMATE.start_dll_insert_~new_node~0#1.offset| 4)) (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_insert_~head#1.base|) |ULTIMATE.start_dll_insert_~head#1.offset|)) (<= 5 |ULTIMATE.start_node_create_#in~data#1|) (= |ULTIMATE.start_main_~uneq~0#1| 5) (= |ULTIMATE.start_node_create_~temp~0#1.offset| 0) (= |ULTIMATE.start_dll_insert_~snd_to_last~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.offset|) (<= |ULTIMATE.start_dll_insert_~data#1| 5) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_insert_~head#1.base|) |ULTIMATE.start_dll_insert_~head#1.offset|) |ULTIMATE.start_dll_insert_#t~mem13#1.offset|) (<= |ULTIMATE.start_dll_create_~data#1| 1) (not (= (select |#valid| |ULTIMATE.start_dll_insert_#t~mem13#1.base|) 1)) (<= 5 |ULTIMATE.start_dll_insert_#in~data#1|) (<= (+ |ULTIMATE.start_dll_insert_~new_node~0#1.offset| 8) (select |#length| |ULTIMATE.start_dll_insert_~new_node~0#1.base|)) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_insert_#in~data#1| 5) (= |ULTIMATE.start_dll_insert_#t~mem13#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_dll_insert_~head#1.base|) |ULTIMATE.start_dll_insert_~head#1.offset|)) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.base|) (<= |ULTIMATE.start_dll_insert_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_insert_~head#1.offset|) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |ULTIMATE.start_dll_insert_~head#1.base|) (<= |ULTIMATE.start_node_create_#in~data#1| 5) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_node_create_~data#1| 5) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (= |ULTIMATE.start_main_~len~0#1| 2) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#s~0#1.base|) (<= |ULTIMATE.start_dll_create_#in~data#1| 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_insert_~head#1.base|) |ULTIMATE.start_dll_insert_~head#1.offset|) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_dll_insert_~new_node~0#1.base|) (+ |ULTIMATE.start_dll_insert_~new_node~0#1.offset| 4))) (<= |ULTIMATE.start_dll_create_~head~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_dll_insert_~index#1| 0) (<= |ULTIMATE.start_dll_insert_~new_node~0#1.offset| 0) (<= 0 |ULTIMATE.start_dll_insert_~new_node~0#1.offset|) (= |ULTIMATE.start_dll_insert_~snd_to_last~0#1.base| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (= (select |#valid| |ULTIMATE.start_dll_insert_~head#1.base|) 1) (<= 5 |ULTIMATE.start_node_create_~data#1|) (= |#NULL.base| 0))' at error location [2022-11-03 04:21:37,461 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:21:37,461 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:21:37,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 4] total 13 [2022-11-03 04:21:37,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670745465] [2022-11-03 04:21:37,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:21:37,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 04:21:37,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:21:37,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 04:21:37,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1045, Unknown=0, NotChecked=0, Total=1190 [2022-11-03 04:21:37,463 INFO L87 Difference]: Start difference. First operand 81 states and 89 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 13 states have internal predecessors, (74), 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) [2022-11-03 04:21:37,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:21:37,956 INFO L93 Difference]: Finished difference Result 113 states and 124 transitions. [2022-11-03 04:21:37,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 04:21:37,956 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 13 states have internal predecessors, (74), 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 32 [2022-11-03 04:21:37,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:21:37,957 INFO L225 Difference]: With dead ends: 113 [2022-11-03 04:21:37,957 INFO L226 Difference]: Without dead ends: 113 [2022-11-03 04:21:37,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 68 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=285, Invalid=1785, Unknown=0, NotChecked=0, Total=2070 [2022-11-03 04:21:37,959 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 279 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 04:21:37,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 164 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 04:21:37,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-03 04:21:37,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 72. [2022-11-03 04:21:37,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 53 states have (on average 1.471698113207547) internal successors, (78), 71 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) [2022-11-03 04:21:37,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2022-11-03 04:21:37,961 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 32 [2022-11-03 04:21:37,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:21:37,962 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 78 transitions. [2022-11-03 04:21:37,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 13 states have internal predecessors, (74), 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) [2022-11-03 04:21:37,962 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 78 transitions. [2022-11-03 04:21:37,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 04:21:37,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:21:37,962 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, 1, 1, 1] [2022-11-03 04:21:38,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-03 04:21:38,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-03 04:21:38,188 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:21:38,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:21:38,189 INFO L85 PathProgramCache]: Analyzing trace with hash -671063491, now seen corresponding path program 1 times [2022-11-03 04:21:38,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:21:38,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924218180] [2022-11-03 04:21:38,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:21:38,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:21:38,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:21:38,759 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:21:38,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:21:38,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924218180] [2022-11-03 04:21:38,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924218180] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:21:38,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693411574] [2022-11-03 04:21:38,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:21:38,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:21:38,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:21:38,761 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:21:38,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-03 04:21:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:21:38,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-03 04:21:38,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:21:39,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:39,253 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-11-03 04:21:39,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:39,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-11-03 04:21:39,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:39,310 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-11-03 04:21:39,541 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 04:21:39,541 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2022-11-03 04:21:39,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:39,599 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-11-03 04:21:39,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:39,623 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2022-11-03 04:21:39,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-11-03 04:21:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:21:39,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:21:39,810 WARN L833 $PredicateComparison]: unable to prove that (and (not (<= |c_ULTIMATE.start_main_~mid_index~0#1| 0)) (forall ((v_ArrVal_1918 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_1918) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))) is different from false [2022-11-03 04:21:39,824 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_1918 (Array Int Int)) (v_ArrVal_1916 (Array Int Int))) (not (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base| v_ArrVal_1916) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_1918) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))) (not (<= |c_ULTIMATE.start_main_~mid_index~0#1| 0))) is different from false [2022-11-03 04:21:39,850 WARN L833 $PredicateComparison]: unable to prove that (or (and (not (<= |c_ULTIMATE.start_main_~mid_index~0#1| 0)) (forall ((v_ArrVal_1918 (Array Int Int)) (v_ArrVal_1916 (Array Int Int))) (not (= (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_insert_~last~0#1.base| v_ArrVal_1916) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_1918) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))) (not (< 0 |c_ULTIMATE.start_dll_insert_~index#1|))) is different from false [2022-11-03 04:21:39,861 WARN L833 $PredicateComparison]: unable to prove that (or (and (not (<= |c_ULTIMATE.start_main_~mid_index~0#1| 0)) (forall ((v_ArrVal_1918 (Array Int Int)) (v_ArrVal_1916 (Array Int Int))) (not (= (select (select (store (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|) v_ArrVal_1916) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_1918) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0)))) (not (< 0 |c_ULTIMATE.start_dll_insert_~index#1|))) is different from false [2022-11-03 04:21:39,874 WARN L833 $PredicateComparison]: unable to prove that (or (and (forall ((v_ArrVal_1918 (Array Int Int)) (v_ArrVal_1916 (Array Int Int)) (v_ArrVal_1915 (Array Int Int))) (not (= (select (select (store (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1915))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|) v_ArrVal_1916)) |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_1918) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0))) (not (<= |c_ULTIMATE.start_main_~mid_index~0#1| 0))) (not (< 0 |c_ULTIMATE.start_dll_insert_~index#1|))) is different from false [2022-11-03 04:21:39,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 563 treesize of output 487 [2022-11-03 04:21:39,922 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 482 treesize of output 446 [2022-11-03 04:21:39,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 446 treesize of output 430 [2022-11-03 04:21:39,935 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 430 treesize of output 422 [2022-11-03 04:21:40,115 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-11-03 04:21:40,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693411574] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:21:40,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1222903115] [2022-11-03 04:21:40,117 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-03 04:21:40,117 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:21:40,117 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:21:40,118 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:21:40,118 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:21:40,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,144 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 04:21:40,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,174 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-03 04:21:40,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:40,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:40,244 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:40,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:40,284 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-03 04:21:40,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-11-03 04:21:40,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:21:40,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:21:40,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-03 04:21:40,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,522 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,575 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:40,638 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:40,656 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:40,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:40,949 INFO L356 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2022-11-03 04:21:40,950 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:41,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,019 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:41,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:21:41,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,072 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:41,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,096 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:41,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,172 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,190 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,254 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,328 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:41,334 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:41,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:41,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:41,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:41,376 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:41,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:41,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,405 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,414 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,423 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-03 04:21:41,455 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:41,467 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 04:21:41,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:41,490 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 04:21:41,490 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,550 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:41,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:41,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:41,578 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:41,583 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:41,597 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:41,604 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:41,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,634 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,641 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,684 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-03 04:21:41,692 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:41,702 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-03 04:21:41,702 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:41,728 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-11-03 04:21:41,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:41,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:41,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:41,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:21:41,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,911 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:21:41,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:41,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,964 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:41,964 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:21:41,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:41,993 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:41,993 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:21:42,012 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:42,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:42,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:42,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:42,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:42,091 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:21:42,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:21:42,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:42,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:42,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:42,128 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:21:42,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:21:42,253 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:42,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:42,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:42,325 INFO L356 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-03 04:21:42,325 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:21:42,364 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-03 04:21:42,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-11-03 04:21:42,378 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:42,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:42,460 INFO L356 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2022-11-03 04:21:42,460 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2022-11-03 04:21:42,509 INFO L356 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2022-11-03 04:21:42,509 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 52 [2022-11-03 04:21:42,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:42,770 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:42,785 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:42,790 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:42,798 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:42,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:42,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:42,818 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:42,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:42,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:42,845 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:42,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:42,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:42,901 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:21:52,098 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6679#(and (or (and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= |ULTIMATE.start_main_~uneq~0#1| 5) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 5 |ULTIMATE.start_dll_insert_~data#1|) (<= 5 |ULTIMATE.start_main_~uneq~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_insert_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 5 |ULTIMATE.start_node_create_#in~data#1|) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.offset|) (<= |ULTIMATE.start_dll_insert_~data#1| 5) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= 0 |ULTIMATE.start_dll_insert_~last~0#1.base|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 5 |ULTIMATE.start_dll_insert_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_insert_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.base|) (<= |ULTIMATE.start_dll_insert_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_insert_~head#1.offset|) (<= |ULTIMATE.start_dll_insert_~last~0#1.base| 0) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (<= 0 |ULTIMATE.start_dll_insert_~head#1.base|) (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) (<= |ULTIMATE.start_node_create_#in~data#1| 5) (<= |#NULL.base| 0) (<= 0 (+ 4 |ULTIMATE.start_dll_insert_~snd_to_last~0#1.offset|)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_main_~count~0#1| 0) (<= |ULTIMATE.start_node_create_~data#1| 5) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_node_create_~temp~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_insert_~last~0#1.offset|) (<= 0 |ULTIMATE.start_main_~mid_index~0#1|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_dll_insert_~index#1| 0) (<= |ULTIMATE.start_dll_insert_~new_node~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_dll_insert_~new_node~0#1.offset|) (<= |ULTIMATE.start_dll_insert_~last~0#1.offset| 0) (<= 1 |ULTIMATE.start_main_~data~0#1|) (<= |ULTIMATE.start_main_~mid_index~0#1| 0) (<= 0 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_dll_create_#res#1.offset|) (<= 0 |ULTIMATE.start_main_~#s~0#1.offset|) (<= 5 |ULTIMATE.start_node_create_~data#1|)) (and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= |ULTIMATE.start_main_~uneq~0#1| 5) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 5 |ULTIMATE.start_dll_insert_~data#1|) (<= 5 |ULTIMATE.start_main_~uneq~0#1|) (<= |ULTIMATE.start_main_~ptr~0#1.offset| 0) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_insert_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 5 |ULTIMATE.start_node_create_#in~data#1|) (<= |ULTIMATE.start_main_~ptr~0#1.base| 0) (<= 0 |ULTIMATE.start_main_~ptr~0#1.base|) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.offset|) (<= |ULTIMATE.start_dll_insert_~data#1| 5) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= 0 |ULTIMATE.start_dll_insert_~last~0#1.base|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 5 |ULTIMATE.start_dll_insert_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_insert_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.base|) (<= |ULTIMATE.start_dll_insert_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_insert_~head#1.offset|) (<= |ULTIMATE.start_dll_insert_~last~0#1.base| 0) (<= 0 (+ |ULTIMATE.start_dll_create_~len#1| 1)) (<= 0 |ULTIMATE.start_dll_insert_~head#1.base|) (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) (<= |ULTIMATE.start_node_create_#in~data#1| 5) (<= |#NULL.base| 0) (<= 0 (+ 4 |ULTIMATE.start_dll_insert_~snd_to_last~0#1.offset|)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_main_~count~0#1| 0) (<= |ULTIMATE.start_node_create_~data#1| 5) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_node_create_~temp~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_insert_~last~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_dll_insert_~index#1| 0) (<= |ULTIMATE.start_dll_insert_~new_node~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_dll_insert_~new_node~0#1.offset|) (<= |ULTIMATE.start_dll_insert_~last~0#1.offset| 0) (<= 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|) (<= 5 |ULTIMATE.start_node_create_~data#1|) (<= 0 |ULTIMATE.start_main_~ptr~0#1.offset|))) (not (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1)))' at error location [2022-11-03 04:21:52,098 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:21:52,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:21:52,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 32 [2022-11-03 04:21:52,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789508854] [2022-11-03 04:21:52,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:21:52,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-03 04:21:52,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:21:52,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-03 04:21:52,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=2259, Unknown=5, NotChecked=500, Total=2970 [2022-11-03 04:21:52,101 INFO L87 Difference]: Start difference. First operand 72 states and 78 transitions. Second operand has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 32 states have internal predecessors, (101), 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) [2022-11-03 04:21:53,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:21:53,590 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2022-11-03 04:21:53,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 04:21:53,590 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 32 states have internal predecessors, (101), 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 34 [2022-11-03 04:21:53,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:21:53,591 INFO L225 Difference]: With dead ends: 127 [2022-11-03 04:21:53,591 INFO L226 Difference]: Without dead ends: 127 [2022-11-03 04:21:53,592 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 59 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 1013 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=362, Invalid=3435, Unknown=5, NotChecked=620, Total=4422 [2022-11-03 04:21:53,593 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 237 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 851 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 471 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:21:53,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 851 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 994 Invalid, 0 Unknown, 471 Unchecked, 0.8s Time] [2022-11-03 04:21:53,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-03 04:21:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 73. [2022-11-03 04:21:53,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 72 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) [2022-11-03 04:21:53,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 80 transitions. [2022-11-03 04:21:53,595 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 80 transitions. Word has length 34 [2022-11-03 04:21:53,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:21:53,596 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 80 transitions. [2022-11-03 04:21:53,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.0606060606060606) internal successors, (101), 32 states have internal predecessors, (101), 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) [2022-11-03 04:21:53,596 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 80 transitions. [2022-11-03 04:21:53,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-03 04:21:53,597 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:21:53,597 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, 1, 1, 1] [2022-11-03 04:21:53,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-03 04:21:53,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:21:53,812 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:21:53,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:21:53,813 INFO L85 PathProgramCache]: Analyzing trace with hash -671066915, now seen corresponding path program 1 times [2022-11-03 04:21:53,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:21:53,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637313951] [2022-11-03 04:21:53,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:21:53,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:21:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:21:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:21:54,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:21:54,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637313951] [2022-11-03 04:21:54,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637313951] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:21:54,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538381236] [2022-11-03 04:21:54,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:21:54,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:21:54,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:21:54,654 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:21:54,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-03 04:21:54,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:21:54,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-03 04:21:54,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 04:21:55,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:55,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-03 04:21:55,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:55,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-03 04:21:55,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:55,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-03 04:21:55,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:55,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-03 04:21:55,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:55,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-03 04:21:55,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:55,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-03 04:21:55,418 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-03 04:21:55,418 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 36 [2022-11-03 04:21:55,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:55,425 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-11-03 04:21:55,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:55,476 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 31 [2022-11-03 04:21:55,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:55,482 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-11-03 04:21:55,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:55,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 31 [2022-11-03 04:21:55,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:55,505 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-11-03 04:21:55,566 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-11-03 04:21:55,569 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2022-11-03 04:21:55,590 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:21:55,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 04:21:55,671 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2101 (Array Int Int))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 8) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2101) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (forall ((v_ArrVal_2102 (Array Int Int))) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2022-11-03 04:21:55,687 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2098 (Array Int Int)) (v_ArrVal_2097 (Array Int Int))) (<= (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base| v_ArrVal_2098) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 8) (select |c_#length| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base| v_ArrVal_2097) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2101) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2098 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base| v_ArrVal_2098) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4)))) is different from false [2022-11-03 04:21:55,714 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:55,714 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 56 [2022-11-03 04:21:55,754 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_prenex_28 (Array Int Int)) (v_prenex_27 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base| v_prenex_28) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2098 (Array Int Int))) (< (select (select (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base| v_ArrVal_2098) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (+ |c_ULTIMATE.start_dll_insert_~last~0#1.offset| 1))) (forall ((v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2097 (Array Int Int))) (= |c_ULTIMATE.start_dll_insert_~last~0#1.base| (select (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base| v_ArrVal_2097) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2101) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)))) is different from false [2022-11-03 04:21:55,788 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| |c_ULTIMATE.start_dll_insert_~last~0#1.base|)) (forall ((v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2097 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2097) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2101) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |c_ULTIMATE.start_dll_insert_~last~0#1.base|)))) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| |c_ULTIMATE.start_dll_insert_~last~0#1.base|)) (forall ((v_prenex_28 (Array Int Int)) (v_prenex_27 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_prenex_28) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| |c_ULTIMATE.start_dll_insert_~last~0#1.base|)) (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2098 (Array Int Int))) (< (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2098) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (+ |c_ULTIMATE.start_dll_insert_~last~0#1.offset| 1)))))) is different from false [2022-11-03 04:21:55,819 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (and (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| .cse0)) (forall ((v_prenex_28 (Array Int Int)) (v_prenex_27 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_prenex_28) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| .cse0)) (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2098 (Array Int Int))) (< (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2098) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|) 1))))) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| .cse0)) (forall ((v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2097 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2097) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2101) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse0)))))) is different from false [2022-11-03 04:21:55,849 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int) (v_ArrVal_2096 (Array Int Int)) (v_ArrVal_2095 (Array Int Int))) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2095) |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2098 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2096))) (< (select (select (store (store .cse0 |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2098) |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (+ (select (select .cse0 |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|) 1)))))) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int) (v_ArrVal_2096 (Array Int Int)) (v_ArrVal_2095 (Array Int Int))) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2095) |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (forall ((v_prenex_28 (Array Int Int)) (v_prenex_27 (Array Int Int))) (<= 0 (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2096) |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_prenex_28) |c_ULTIMATE.start_node_create_~temp~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int) (v_ArrVal_2095 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2095))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| .cse1)) (forall ((v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2097 (Array Int Int))) (= (select (select (store (store .cse2 |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2097) |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2101) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse1))))))) is different from false [2022-11-03 04:21:55,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1204 treesize of output 1060 [2022-11-03 04:21:56,028 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1706 treesize of output 1634 [2022-11-03 04:21:56,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1613 treesize of output 1611 [2022-11-03 04:21:56,119 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1611 treesize of output 1579 [2022-11-03 04:21:56,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1579 treesize of output 1563 [2022-11-03 04:21:56,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1563 treesize of output 1531 [2022-11-03 04:21:56,179 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1531 treesize of output 1529 [2022-11-03 04:21:56,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1529 treesize of output 1521 [2022-11-03 04:21:56,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1521 treesize of output 1517 [2022-11-03 04:21:56,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1517 treesize of output 1515 [2022-11-03 04:21:56,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1515 treesize of output 1451 [2022-11-03 04:21:56,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1451 treesize of output 1419 [2022-11-03 04:21:56,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1419 treesize of output 1353 [2022-11-03 04:21:56,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 1 not checked. [2022-11-03 04:21:56,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538381236] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 04:21:56,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1194082860] [2022-11-03 04:21:56,990 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-03 04:21:56,990 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 04:21:56,990 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 04:21:56,991 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 04:21:56,991 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 04:21:57,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,011 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-03 04:21:57,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-03 04:21:57,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,062 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,073 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:57,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:57,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,101 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,112 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:57,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:57,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,142 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,164 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,272 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:57,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:21:57,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,303 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:57,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,359 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:57,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,377 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:57,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,535 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,804 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:57,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-11-03 04:21:57,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,881 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38 [2022-11-03 04:21:57,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,909 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:57,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,926 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-11-03 04:21:57,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,946 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:57,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:57,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:58,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,015 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:58,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,065 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:58,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:58,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:58,331 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:58,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:58,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:21:58,406 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:58,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,420 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 20 [2022-11-03 04:21:58,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,478 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:58,478 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:21:58,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:58,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,515 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-03 04:21:58,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-11-03 04:21:58,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,555 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:58,571 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:21:58,571 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:21:58,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:58,599 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 04:21:58,617 INFO L356 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-03 04:21:58,618 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 41 treesize of output 39 [2022-11-03 04:21:58,639 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:58,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:58,777 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:58,787 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:58,840 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-03 04:21:58,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2022-11-03 04:21:58,871 INFO L356 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2022-11-03 04:21:58,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 04:21:58,887 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:58,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 04:21:58,965 INFO L356 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2022-11-03 04:21:58,965 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 52 [2022-11-03 04:21:59,017 INFO L356 Elim1Store]: treesize reduction 33, result has 34.0 percent of original size [2022-11-03 04:21:59,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2022-11-03 04:21:59,168 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 04:21:59,175 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-03 04:21:59,202 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-03 04:21:59,219 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:59,228 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-03 04:21:59,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:59,252 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:59,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:59,268 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 04:21:59,298 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:59,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 04:21:59,310 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:59,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-11-03 04:21:59,344 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 04:22:07,876 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7158#(and (<= 0 |ULTIMATE.start_main_~count~0#1|) (<= |ULTIMATE.start_main_~uneq~0#1| 5) (<= 1 |ULTIMATE.start_dll_create_~data#1|) (<= |ULTIMATE.start_main_~data~0#1| 1) (<= 0 |#NULL.base|) (<= 2 |ULTIMATE.start_main_~len~0#1|) (<= 5 |ULTIMATE.start_dll_insert_~data#1|) (<= 5 |ULTIMATE.start_main_~uneq~0#1|) (<= 2 |ULTIMATE.start_dll_create_#in~len#1|) (<= |ULTIMATE.start_dll_insert_#in~head#1.offset| 0) (<= |ULTIMATE.start_dll_create_#res#1.offset| 0) (<= 5 |ULTIMATE.start_node_create_#in~data#1|) (or (not (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|))) (not (<= 0 (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)))) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.offset|) (<= |ULTIMATE.start_dll_insert_~data#1| 5) (<= 0 |ULTIMATE.start_node_create_#res#1.offset|) (<= 0 |ULTIMATE.start_dll_insert_~last~0#1.base|) (<= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~len~0#1| 2) (<= |ULTIMATE.start_dll_create_~data#1| 1) (<= 5 |ULTIMATE.start_dll_insert_#in~data#1|) (<= |ULTIMATE.start_node_create_#res#1.offset| 0) (<= |ULTIMATE.start_dll_insert_#in~data#1| 5) (<= 0 |ULTIMATE.start_dll_insert_#in~head#1.base|) (<= |ULTIMATE.start_dll_insert_~head#1.offset| 0) (<= 0 |ULTIMATE.start_dll_insert_~head#1.offset|) (<= |ULTIMATE.start_dll_insert_~last~0#1.base| 0) (<= 0 |ULTIMATE.start_dll_insert_~head#1.base|) (<= 0 |ULTIMATE.start_dll_create_~len#1|) (<= 0 |ULTIMATE.start_node_create_~temp~0#1.offset|) (<= |ULTIMATE.start_node_create_#in~data#1| 5) (<= |#NULL.base| 0) (<= 0 (+ 4 |ULTIMATE.start_dll_insert_~snd_to_last~0#1.offset|)) (<= |ULTIMATE.start_dll_create_#in~len#1| 2) (<= |ULTIMATE.start_main_~count~0#1| 0) (<= |ULTIMATE.start_node_create_~data#1| 5) (<= |ULTIMATE.start_dll_create_~len#1| 0) (<= 1 |ULTIMATE.start_dll_create_#in~data#1|) (<= |ULTIMATE.start_main_~#s~0#1.offset| 0) (<= |ULTIMATE.start_node_create_~temp~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_insert_~last~0#1.offset|) (<= 0 |ULTIMATE.start_dll_create_~head~0#1.offset|) (<= |ULTIMATE.start_dll_insert_~index#1| 0) (<= |ULTIMATE.start_dll_insert_~new_node~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_dll_insert_~new_node~0#1.offset|) (<= |ULTIMATE.start_dll_insert_~last~0#1.offset| 0) (<= 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|) (<= 5 |ULTIMATE.start_node_create_~data#1|))' at error location [2022-11-03 04:22:07,876 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 04:22:07,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 04:22:07,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 33 [2022-11-03 04:22:07,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991700187] [2022-11-03 04:22:07,877 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 04:22:07,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-03 04:22:07,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:22:07,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-03 04:22:07,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=2349, Unknown=6, NotChecked=618, Total=3192 [2022-11-03 04:22:07,879 INFO L87 Difference]: Start difference. First operand 73 states and 80 transitions. Second operand has 35 states, 34 states have (on average 2.9411764705882355) internal successors, (100), 34 states have internal predecessors, (100), 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) [2022-11-03 04:22:08,022 WARN L833 $PredicateComparison]: unable to prove that (and (<= (+ 2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) |c_ULTIMATE.start_main_~#s~0#1.base|) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_dll_create_~head~0#1.offset| 0) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (= |c_ULTIMATE.start_dll_create_~new_head~0#1.offset| 0) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_insert_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_dll_insert_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int) (v_ArrVal_2096 (Array Int Int)) (v_ArrVal_2095 (Array Int Int))) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2095) |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2098 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2096))) (< (select (select (store (store .cse0 |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2098) |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (+ (select (select .cse0 |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|) 1)))))) (<= (+ |c_ULTIMATE.start_node_create_~temp~0#1.base| 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (<= (+ 1 |c_ULTIMATE.start_dll_create_~head~0#1.base|) |c_#StackHeapBarrier|) (< |c_ULTIMATE.start_dll_create_~new_head~0#1.base| |c_#StackHeapBarrier|) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int) (v_ArrVal_2096 (Array Int Int)) (v_ArrVal_2095 (Array Int Int))) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2095) |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (forall ((v_prenex_28 (Array Int Int)) (v_prenex_27 (Array Int Int))) (<= 0 (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2096) |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_prenex_28) |c_ULTIMATE.start_node_create_~temp~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int) (v_ArrVal_2095 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2095))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| .cse1)) (forall ((v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2097 (Array Int Int))) (= (select (select (store (store .cse2 |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2097) |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2101) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse1))))))) is different from false [2022-11-03 04:22:08,029 WARN L833 $PredicateComparison]: unable to prove that (and (<= (+ 2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_insert_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (= |c_ULTIMATE.start_dll_insert_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int) (v_ArrVal_2096 (Array Int Int)) (v_ArrVal_2095 (Array Int Int))) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2095) |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2098 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2096))) (< (select (select (store (store .cse0 |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2098) |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (+ (select (select .cse0 |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|) 1)))))) (<= (+ |c_ULTIMATE.start_node_create_~temp~0#1.base| 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int) (v_ArrVal_2096 (Array Int Int)) (v_ArrVal_2095 (Array Int Int))) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2095) |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (forall ((v_prenex_28 (Array Int Int)) (v_prenex_27 (Array Int Int))) (<= 0 (+ (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2096) |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_prenex_28) |c_ULTIMATE.start_node_create_~temp~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int) (v_ArrVal_2095 (Array Int Int))) (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2095))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| .cse1)) (forall ((v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2097 (Array Int Int))) (= (select (select (store (store .cse2 |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2097) |c_ULTIMATE.start_node_create_~temp~0#1.base| v_ArrVal_2101) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse1))))))) is different from false [2022-11-03 04:22:08,037 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|))) (and (<= (+ 2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) |c_ULTIMATE.start_main_~#s~0#1.base|) (<= (+ |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 0) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| .cse0)) (forall ((v_prenex_28 (Array Int Int)) (v_prenex_27 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_prenex_28) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| .cse0)) (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2098 (Array Int Int))) (< (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2098) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (+ (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_dll_insert_~head#1.base|) |c_ULTIMATE.start_dll_insert_~head#1.offset|) 1))))) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_insert_~head#1.base| |c_ULTIMATE.start_main_~#s~0#1.base|) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| .cse0)) (forall ((v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2097 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2097) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2101) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) .cse0)))) (= |c_ULTIMATE.start_dll_insert_~head#1.offset| |c_ULTIMATE.start_main_~#s~0#1.offset|))) is different from false [2022-11-03 04:22:10,041 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse1 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|))) (and (<= (+ 2 .cse0) |c_ULTIMATE.start_main_~#s~0#1.base|) (<= (+ |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| 2) |c_ULTIMATE.start_main_~#s~0#1.base|) (= .cse1 0) (= |c_ULTIMATE.start_main_~#s~0#1.offset| 0) (= |c_ULTIMATE.start_dll_insert_~last~0#1.base| .cse0) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| |c_ULTIMATE.start_dll_insert_~last~0#1.base|)) (forall ((v_ArrVal_2101 (Array Int Int)) (v_ArrVal_2097 (Array Int Int))) (= (select (select (store (store |c_#memory_$Pointer$.base| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2097) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2101) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) |c_ULTIMATE.start_dll_insert_~last~0#1.base|)))) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| |c_ULTIMATE.start_dll_insert_~last~0#1.base|)) (forall ((v_prenex_28 (Array Int Int)) (v_prenex_27 (Array Int Int))) (<= 0 (+ (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_prenex_28) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_prenex_27) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))))) (forall ((|v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| Int)) (or (not (<= |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| |c_ULTIMATE.start_dll_insert_~last~0#1.base|)) (forall ((v_ArrVal_2102 (Array Int Int)) (v_ArrVal_2098 (Array Int Int))) (< (select (select (store (store |c_#memory_$Pointer$.offset| |v_ULTIMATE.start_dll_insert_~snd_to_last~0#1.base_37| v_ArrVal_2098) |c_ULTIMATE.start_dll_insert_~new_node~0#1.base| v_ArrVal_2102) |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) (+ |c_ULTIMATE.start_dll_insert_~last~0#1.offset| 1))))) (= |c_ULTIMATE.start_dll_insert_~last~0#1.offset| .cse1))) is different from false [2022-11-03 04:22:10,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:22:10,684 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2022-11-03 04:22:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 04:22:10,685 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.9411764705882355) internal successors, (100), 34 states have internal predecessors, (100), 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 34 [2022-11-03 04:22:10,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:22:10,685 INFO L225 Difference]: With dead ends: 115 [2022-11-03 04:22:10,685 INFO L226 Difference]: Without dead ends: 115 [2022-11-03 04:22:10,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 57 SyntacticMatches, 5 SemanticMatches, 64 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 1061 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=273, Invalid=2837, Unknown=10, NotChecked=1170, Total=4290 [2022-11-03 04:22:10,687 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 192 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 1021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 508 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:22:10,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 633 Invalid, 1021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 501 Invalid, 0 Unknown, 508 Unchecked, 0.4s Time] [2022-11-03 04:22:10,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-11-03 04:22:10,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 74. [2022-11-03 04:22:10,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 73 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) [2022-11-03 04:22:10,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 80 transitions. [2022-11-03 04:22:10,689 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 80 transitions. Word has length 34 [2022-11-03 04:22:10,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:22:10,689 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 80 transitions. [2022-11-03 04:22:10,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.9411764705882355) internal successors, (100), 34 states have internal predecessors, (100), 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) [2022-11-03 04:22:10,690 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 80 transitions. [2022-11-03 04:22:10,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-03 04:22:10,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:22:10,690 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, 1, 1, 1, 1] [2022-11-03 04:22:10,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-03 04:22:10,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:22:10,891 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-11-03 04:22:10,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:22:10,891 INFO L85 PathProgramCache]: Analyzing trace with hash 492853347, now seen corresponding path program 1 times [2022-11-03 04:22:10,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:22:10,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882912741] [2022-11-03 04:22:10,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:22:10,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:22:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:22:12,247 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 04:22:12,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:22:12,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882912741] [2022-11-03 04:22:12,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882912741] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 04:22:12,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992753282] [2022-11-03 04:22:12,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:22:12,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 04:22:12,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 04:22:12,251 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 04:22:12,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0be2345f-ad88-4b4a-90a1-279fd45ac745/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process