./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c0706d1a5964bb8391155a217bd6084c2519a4607ef121976461541c97aecebc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:16:51,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:16:51,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:16:51,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:16:51,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:16:51,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:16:51,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:16:51,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:16:51,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:16:51,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:16:51,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:16:51,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:16:51,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:16:51,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:16:51,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:16:51,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:16:51,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:16:51,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:16:51,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:16:51,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:16:51,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:16:51,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:16:51,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:16:51,133 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:16:51,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:16:51,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:16:51,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:16:51,141 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:16:51,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:16:51,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:16:51,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:16:51,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:16:51,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:16:51,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:16:51,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:16:51,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:16:51,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:16:51,146 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:16:51,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:16:51,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:16:51,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:16:51,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 15:16:51,169 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:16:51,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:16:51,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:16:51,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:16:51,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:16:51,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:16:51,171 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:16:51,171 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:16:51,171 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:16:51,172 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:16:51,172 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:16:51,172 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:16:51,172 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:16:51,172 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:16:51,172 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:16:51,172 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:16:51,173 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:16:51,173 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:16:51,173 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 15:16:51,173 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 15:16:51,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:16:51,174 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:16:51,174 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:16:51,174 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:16:51,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:16:51,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:16:51,175 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 15:16:51,175 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 15:16:51,175 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 15:16:51,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:16:51,175 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:16:51,175 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:16:51,176 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:16:51,176 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:16:51,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:16:51,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:16:51,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:16:51,176 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:16:51,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:16:51,177 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:16:51,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:16:51,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:16:51,177 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_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0706d1a5964bb8391155a217bd6084c2519a4607ef121976461541c97aecebc [2022-12-14 15:16:51,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:16:51,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:16:51,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:16:51,400 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:16:51,401 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:16:51,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i [2022-12-14 15:16:54,048 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:16:54,240 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:16:54,240 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i [2022-12-14 15:16:54,257 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/data/99d9dd6ab/5c835d1a4f0b488aa104d4c3dedbfcdc/FLAGbe342dbd2 [2022-12-14 15:16:54,271 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/data/99d9dd6ab/5c835d1a4f0b488aa104d4c3dedbfcdc [2022-12-14 15:16:54,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:16:54,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:16:54,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:16:54,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:16:54,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:16:54,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@636a04e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54, skipping insertion in model container [2022-12-14 15:16:54,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:16:54,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:16:54,550 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i[24092,24105] [2022-12-14 15:16:54,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:16:54,560 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:16:54,584 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-2.i[24092,24105] [2022-12-14 15:16:54,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:16:54,601 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:16:54,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54 WrapperNode [2022-12-14 15:16:54,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:16:54,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:16:54,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:16:54,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:16:54,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,630 INFO L138 Inliner]: procedures = 122, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2022-12-14 15:16:54,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:16:54,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:16:54,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:16:54,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:16:54,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,640 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,648 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:16:54,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:16:54,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:16:54,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:16:54,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (1/1) ... [2022-12-14 15:16:54,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:16:54,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:16:54,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:16:54,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:16:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-12-14 15:16:54,717 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-12-14 15:16:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:16:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:16:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:16:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:16:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:16:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:16:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:16:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:16:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:16:54,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:16:54,803 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:16:54,804 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:16:54,822 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-12-14 15:16:55,011 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:16:55,041 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:16:55,041 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 15:16:55,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:16:55 BoogieIcfgContainer [2022-12-14 15:16:55,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:16:55,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:16:55,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:16:55,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:16:55,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:16:54" (1/3) ... [2022-12-14 15:16:55,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2e17ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:16:55, skipping insertion in model container [2022-12-14 15:16:55,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:54" (2/3) ... [2022-12-14 15:16:55,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2e17ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:16:55, skipping insertion in model container [2022-12-14 15:16:55,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:16:55" (3/3) ... [2022-12-14 15:16:55,054 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_circular_traversal-2.i [2022-12-14 15:16:55,070 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:16:55,070 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2022-12-14 15:16:55,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:16:55,107 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;@7581d103, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:16:55,107 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-12-14 15:16:55,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 27 states have (on average 2.259259259259259) internal successors, (61), 53 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 15:16:55,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:55,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 15:16:55,116 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:16:55,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:55,120 INFO L85 PathProgramCache]: Analyzing trace with hash 153218, now seen corresponding path program 1 times [2022-12-14 15:16:55,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:16:55,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458927932] [2022-12-14 15:16:55,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:55,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:16:55,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:55,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:16:55,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:16:55,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458927932] [2022-12-14 15:16:55,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458927932] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:16:55,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:16:55,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 15:16:55,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165022290] [2022-12-14 15:16:55,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:16:55,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:16:55,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:16:55,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:16:55,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:16:55,363 INFO L87 Difference]: Start difference. First operand has 55 states, 27 states have (on average 2.259259259259259) internal successors, (61), 53 states have internal predecessors, (61), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:16:55,434 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2022-12-14 15:16:55,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:16:55,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 15:16:55,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:16:55,441 INFO L225 Difference]: With dead ends: 67 [2022-12-14 15:16:55,441 INFO L226 Difference]: Without dead ends: 62 [2022-12-14 15:16:55,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:16:55,444 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 44 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:16:55,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 43 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:16:55,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-14 15:16:55,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 47. [2022-12-14 15:16:55,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 25 states have (on average 2.0) internal successors, (50), 46 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2022-12-14 15:16:55,468 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 3 [2022-12-14 15:16:55,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:16:55,468 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2022-12-14 15:16:55,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,469 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2022-12-14 15:16:55,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 15:16:55,469 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:55,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 15:16:55,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:16:55,470 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:16:55,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:55,470 INFO L85 PathProgramCache]: Analyzing trace with hash 153219, now seen corresponding path program 1 times [2022-12-14 15:16:55,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:16:55,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080258939] [2022-12-14 15:16:55,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:55,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:16:55,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:55,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:16:55,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:16:55,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080258939] [2022-12-14 15:16:55,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080258939] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:16:55,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:16:55,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 15:16:55,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939084640] [2022-12-14 15:16:55,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:16:55,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:16:55,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:16:55,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:16:55,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:16:55,563 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:16:55,620 INFO L93 Difference]: Finished difference Result 78 states and 84 transitions. [2022-12-14 15:16:55,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:16:55,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-12-14 15:16:55,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:16:55,622 INFO L225 Difference]: With dead ends: 78 [2022-12-14 15:16:55,622 INFO L226 Difference]: Without dead ends: 78 [2022-12-14 15:16:55,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:16:55,624 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 37 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:16:55,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 56 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:16:55,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-14 15:16:55,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 47. [2022-12-14 15:16:55,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 27 states have (on average 1.8888888888888888) internal successors, (51), 46 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2022-12-14 15:16:55,630 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 3 [2022-12-14 15:16:55,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:16:55,630 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2022-12-14 15:16:55,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,631 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-12-14 15:16:55,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:16:55,631 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:55,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:16:55,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:16:55,631 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:16:55,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:55,632 INFO L85 PathProgramCache]: Analyzing trace with hash -230919136, now seen corresponding path program 1 times [2022-12-14 15:16:55,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:16:55,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020941307] [2022-12-14 15:16:55,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:55,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:16:55,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:55,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:16:55,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:16:55,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020941307] [2022-12-14 15:16:55,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020941307] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:16:55,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:16:55,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:16:55,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786577976] [2022-12-14 15:16:55,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:16:55,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:16:55,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:16:55,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:16:55,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:16:55,753 INFO L87 Difference]: Start difference. First operand 47 states and 51 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:16:55,862 INFO L93 Difference]: Finished difference Result 88 states and 94 transitions. [2022-12-14 15:16:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:16:55,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 15:16:55,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:16:55,864 INFO L225 Difference]: With dead ends: 88 [2022-12-14 15:16:55,864 INFO L226 Difference]: Without dead ends: 88 [2022-12-14 15:16:55,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:16:55,865 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 138 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:16:55,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 47 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:16:55,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-12-14 15:16:55,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 44. [2022-12-14 15:16:55,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.75) internal successors, (49), 43 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-12-14 15:16:55,871 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 7 [2022-12-14 15:16:55,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:16:55,871 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-12-14 15:16:55,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,871 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-12-14 15:16:55,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:16:55,872 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:55,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:16:55,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:16:55,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:16:55,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:55,873 INFO L85 PathProgramCache]: Analyzing trace with hash -230919135, now seen corresponding path program 1 times [2022-12-14 15:16:55,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:16:55,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458201215] [2022-12-14 15:16:55,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:55,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:16:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:55,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:16:55,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:16:55,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458201215] [2022-12-14 15:16:55,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458201215] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:16:55,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:16:55,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:16:55,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274505558] [2022-12-14 15:16:55,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:16:55,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:16:55,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:16:55,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:16:55,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:16:55,930 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:16:55,948 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2022-12-14 15:16:55,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:16:55,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 15:16:55,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:16:55,949 INFO L225 Difference]: With dead ends: 49 [2022-12-14 15:16:55,950 INFO L226 Difference]: Without dead ends: 49 [2022-12-14 15:16:55,950 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 [2022-12-14 15:16:55,951 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:16:55,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 70 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:16:55,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-14 15:16:55,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 42. [2022-12-14 15:16:55,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 26 states have (on average 1.7307692307692308) internal successors, (45), 41 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-12-14 15:16:55,956 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 7 [2022-12-14 15:16:55,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:16:55,956 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-12-14 15:16:55,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:55,956 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-12-14 15:16:55,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:16:55,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:55,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:16:55,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:16:55,957 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:16:55,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:55,958 INFO L85 PathProgramCache]: Analyzing trace with hash -231020060, now seen corresponding path program 1 times [2022-12-14 15:16:55,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:16:55,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751125772] [2022-12-14 15:16:55,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:55,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:16:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:56,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:16:56,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:16:56,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751125772] [2022-12-14 15:16:56,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751125772] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:16:56,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:16:56,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:16:56,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123514299] [2022-12-14 15:16:56,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:16:56,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:16:56,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:16:56,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:16:56,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:16:56,014 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:56,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:16:56,051 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2022-12-14 15:16:56,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:16:56,052 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 15:16:56,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:16:56,052 INFO L225 Difference]: With dead ends: 53 [2022-12-14 15:16:56,052 INFO L226 Difference]: Without dead ends: 53 [2022-12-14 15:16:56,053 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 [2022-12-14 15:16:56,053 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 31 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:16:56,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 38 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:16:56,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-14 15:16:56,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 40. [2022-12-14 15:16:56,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-12-14 15:16:56,055 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 7 [2022-12-14 15:16:56,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:16:56,056 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-12-14 15:16:56,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:56,056 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-12-14 15:16:56,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:16:56,056 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:56,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:16:56,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:16:56,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:16:56,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:56,057 INFO L85 PathProgramCache]: Analyzing trace with hash -231020059, now seen corresponding path program 1 times [2022-12-14 15:16:56,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:16:56,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120323750] [2022-12-14 15:16:56,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:56,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:16:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:16:56,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:16:56,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120323750] [2022-12-14 15:16:56,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120323750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:16:56,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:16:56,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:16:56,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215177189] [2022-12-14 15:16:56,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:16:56,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:16:56,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:16:56,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:16:56,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:16:56,106 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:56,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:16:56,136 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-12-14 15:16:56,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:16:56,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 15:16:56,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:16:56,137 INFO L225 Difference]: With dead ends: 38 [2022-12-14 15:16:56,137 INFO L226 Difference]: Without dead ends: 38 [2022-12-14 15:16:56,137 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 [2022-12-14 15:16:56,138 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 34 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:16:56,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 23 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:16:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-14 15:16:56,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-12-14 15:16:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:56,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-12-14 15:16:56,141 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 7 [2022-12-14 15:16:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:16:56,141 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-12-14 15:16:56,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:56,141 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-12-14 15:16:56,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:16:56,142 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:56,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:16:56,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 15:16:56,142 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:16:56,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:56,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1780902870, now seen corresponding path program 1 times [2022-12-14 15:16:56,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:16:56,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563485684] [2022-12-14 15:16:56,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:56,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:16:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:16:56,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:16:56,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563485684] [2022-12-14 15:16:56,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563485684] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:16:56,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856304877] [2022-12-14 15:16:56,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:56,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:16:56,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:16:56,188 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:16:56,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:16:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:56,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:16:56,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:16:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:16:56,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:16:56,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:16:56,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856304877] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:16:56,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1842621115] [2022-12-14 15:16:56,330 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 15:16:56,330 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:16:56,333 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:16:56,337 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:16:56,337 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:16:56,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:16:56,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:16:56,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 15:16:56,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:16:56,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:16:56,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,508 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:16:56,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 15:16:56,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 15:16:56,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 15:16:56,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:16:56,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:16:56,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:16:56,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 15:16:56,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:16:56,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-12-14 15:16:56,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:16:56,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:16:56,937 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:16:56,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 370 treesize of output 368 [2022-12-14 15:16:56,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:16:56,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:56,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:16:56,982 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 15:16:56,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 374 treesize of output 357 [2022-12-14 15:16:57,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:16:57,001 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:16:57,022 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:16:57,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 370 treesize of output 368 [2022-12-14 15:16:57,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:57,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:57,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:57,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:16:57,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:16:57,161 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 15:16:57,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 448 treesize of output 397 [2022-12-14 15:16:57,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:57,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:57,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:16:57,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:16:57,209 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-12-14 15:16:57,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 442 treesize of output 436 [2022-12-14 15:16:57,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:57,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:57,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:16:57,251 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-12-14 15:16:57,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 462 treesize of output 423 [2022-12-14 15:16:57,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:57,429 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-12-14 15:16:57,430 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 436 treesize of output 434 [2022-12-14 15:16:57,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:16:57,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:16:57,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:16:57,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:57,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2022-12-14 15:16:57,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:16:57,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:16:57,643 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:16:57,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 15:16:57,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 15:16:57,682 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:16:57,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:16:57,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:16:57,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:57,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2022-12-14 15:16:57,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:16:57,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:16:57,806 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:16:57,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 15:16:57,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 15:16:57,826 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:16:58,476 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '773#(and (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (= |ULTIMATE.start_main_~data_init~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (< (select |#length| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (+ |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 4)) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= 5 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 5) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 15:16:58,477 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:16:58,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:16:58,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-14 15:16:58,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644352661] [2022-12-14 15:16:58,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:16:58,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:16:58,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:16:58,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:16:58,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:16:58,478 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:58,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:16:58,501 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2022-12-14 15:16:58,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:16:58,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 15:16:58,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:16:58,502 INFO L225 Difference]: With dead ends: 50 [2022-12-14 15:16:58,502 INFO L226 Difference]: Without dead ends: 50 [2022-12-14 15:16:58,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-12-14 15:16:58,503 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 6 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:16:58,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 94 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:16:58,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-12-14 15:16:58,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-12-14 15:16:58,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 38 states have (on average 1.394736842105263) internal successors, (53), 49 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:58,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-12-14 15:16:58,507 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 10 [2022-12-14 15:16:58,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:16:58,507 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-12-14 15:16:58,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:16:58,507 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-12-14 15:16:58,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 15:16:58,508 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:58,508 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-12-14 15:16:58,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:16:58,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 15:16:58,710 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:16:58,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:58,712 INFO L85 PathProgramCache]: Analyzing trace with hash -888930681, now seen corresponding path program 2 times [2022-12-14 15:16:58,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:16:58,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055690274] [2022-12-14 15:16:58,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:58,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:16:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:59,282 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:16:59,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:16:59,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055690274] [2022-12-14 15:16:59,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055690274] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:16:59,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232457589] [2022-12-14 15:16:59,283 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:16:59,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:16:59,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:16:59,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:16:59,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:16:59,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-14 15:16:59,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:16:59,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 15:16:59,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:16:59,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:16:59,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:59,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 15:16:59,566 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:16:59,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 15:16:59,610 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:16:59,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 15:16:59,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 15:16:59,696 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 15:16:59,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 15:16:59,726 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 15:16:59,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2022-12-14 15:16:59,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:16:59,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 15:16:59,896 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-12-14 15:16:59,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 15:16:59,914 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 15:16:59,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:17:08,534 WARN L233 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:17:14,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 288 treesize of output 282 [2022-12-14 15:17:15,575 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:17:15,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232457589] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:17:15,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2085482864] [2022-12-14 15:17:15,578 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 15:17:15,578 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:17:15,578 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:17:15,578 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:17:15,578 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:17:15,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:17:15,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 15:17:15,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:15,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:15,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 15:17:15,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:15,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:15,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 15:17:15,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:15,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 15:17:15,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:15,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 15:17:15,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:15,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:15,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-12-14 15:17:15,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:15,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:15,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:15,949 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 15:17:15,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 374 treesize of output 357 [2022-12-14 15:17:15,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:15,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:15,989 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:15,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 370 treesize of output 368 [2022-12-14 15:17:16,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:16,005 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:16,028 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:16,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 370 treesize of output 368 [2022-12-14 15:17:16,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:16,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:16,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:16,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:16,186 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-12-14 15:17:16,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 442 treesize of output 436 [2022-12-14 15:17:16,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:16,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:16,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:16,221 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-12-14 15:17:16,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 462 treesize of output 423 [2022-12-14 15:17:16,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:16,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:16,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:16,240 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:16,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:16,247 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 15:17:16,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 448 treesize of output 397 [2022-12-14 15:17:16,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:16,417 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-12-14 15:17:16,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 436 treesize of output 434 [2022-12-14 15:17:16,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:16,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:16,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:16,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:16,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2022-12-14 15:17:16,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:16,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:17:16,608 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:17:16,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 15:17:16,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 15:17:16,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:16,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:16,654 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:16,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:16,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 56 [2022-12-14 15:17:16,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:17:16,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:16,734 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 15:17:16,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 15:17:16,753 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:17:16,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 15:17:16,768 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:17:17,426 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1026#(and (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (= |ULTIMATE.start_main_~data_init~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (< (select |#length| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (+ |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 4)) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= 5 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 5) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 15:17:17,426 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:17:17,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:17:17,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 17 [2022-12-14 15:17:17,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516198963] [2022-12-14 15:17:17,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:17:17,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-14 15:17:17,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:17:17,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-14 15:17:17,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=551, Unknown=1, NotChecked=0, Total=702 [2022-12-14 15:17:17,428 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 19 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:17,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:17:17,556 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2022-12-14 15:17:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:17:17,556 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 15:17:17,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:17:17,557 INFO L225 Difference]: With dead ends: 62 [2022-12-14 15:17:17,557 INFO L226 Difference]: Without dead ends: 62 [2022-12-14 15:17:17,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=188, Invalid=623, Unknown=1, NotChecked=0, Total=812 [2022-12-14 15:17:17,558 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 172 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:17:17,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 96 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:17:17,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-14 15:17:17,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 49. [2022-12-14 15:17:17,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 38 states have (on average 1.368421052631579) internal successors, (52), 48 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:17,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2022-12-14 15:17:17,561 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 22 [2022-12-14 15:17:17,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:17:17,562 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2022-12-14 15:17:17,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 18 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:17,562 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2022-12-14 15:17:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 15:17:17,562 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:17:17,562 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:17:17,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:17:17,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-14 15:17:17,764 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:17:17,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:17:17,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1787044828, now seen corresponding path program 1 times [2022-12-14 15:17:17,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:17:17,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208190868] [2022-12-14 15:17:17,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:17,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:17:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:17,884 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-12-14 15:17:17,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:17:17,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208190868] [2022-12-14 15:17:17,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208190868] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:17:17,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:17:17,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:17:17,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277291725] [2022-12-14 15:17:17,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:17:17,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:17:17,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:17:17,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:17:17,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:17:17,886 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:17,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:17:17,950 INFO L93 Difference]: Finished difference Result 64 states and 67 transitions. [2022-12-14 15:17:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:17:17,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-12-14 15:17:17,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:17:17,951 INFO L225 Difference]: With dead ends: 64 [2022-12-14 15:17:17,951 INFO L226 Difference]: Without dead ends: 64 [2022-12-14 15:17:17,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:17:17,952 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 84 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:17:17,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 40 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:17:17,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-12-14 15:17:17,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 50. [2022-12-14 15:17:17,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:17,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-12-14 15:17:17,956 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 23 [2022-12-14 15:17:17,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:17:17,956 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-12-14 15:17:17,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:17,957 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-12-14 15:17:17,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 15:17:17,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:17:17,957 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:17:17,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 15:17:17,957 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:17:17,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:17:17,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1787044827, now seen corresponding path program 1 times [2022-12-14 15:17:17,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:17:17,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128734349] [2022-12-14 15:17:17,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:17,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:17:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:18,084 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 15:17:18,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:17:18,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128734349] [2022-12-14 15:17:18,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128734349] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:17:18,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:17:18,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:17:18,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996557939] [2022-12-14 15:17:18,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:17:18,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:17:18,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:17:18,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:17:18,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:17:18,085 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:18,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:17:18,153 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2022-12-14 15:17:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 15:17:18,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-12-14 15:17:18,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:17:18,153 INFO L225 Difference]: With dead ends: 55 [2022-12-14 15:17:18,154 INFO L226 Difference]: Without dead ends: 55 [2022-12-14 15:17:18,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:17:18,154 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 81 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:17:18,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 33 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:17:18,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-12-14 15:17:18,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2022-12-14 15:17:18,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 52 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:18,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2022-12-14 15:17:18,158 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 23 [2022-12-14 15:17:18,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:17:18,158 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2022-12-14 15:17:18,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:18,158 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2022-12-14 15:17:18,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 15:17:18,159 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:17:18,159 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:17:18,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 15:17:18,159 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:17:18,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:17:18,159 INFO L85 PathProgramCache]: Analyzing trace with hash 636839767, now seen corresponding path program 1 times [2022-12-14 15:17:18,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:17:18,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281279091] [2022-12-14 15:17:18,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:18,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:17:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:18,628 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 15:17:18,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:17:18,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281279091] [2022-12-14 15:17:18,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281279091] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:17:18,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756101765] [2022-12-14 15:17:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:18,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:17:18,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:17:18,629 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:17:18,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:17:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:18,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 15:17:18,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:17:18,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:17:18,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:18,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 15:17:18,872 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 15:17:18,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:17:19,010 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-14 15:17:19,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756101765] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:17:19,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1523795012] [2022-12-14 15:17:19,012 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-12-14 15:17:19,012 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:17:19,013 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:17:19,013 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:17:19,013 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:17:19,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:17:19,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:19,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:19,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 15:17:19,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:19,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:19,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 15:17:19,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 15:17:19,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:19,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 15:17:19,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:19,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 15:17:19,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,208 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:19,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:19,309 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 15:17:19,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 334 treesize of output 337 [2022-12-14 15:17:19,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:19,471 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:19,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 339 treesize of output 337 [2022-12-14 15:17:19,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:19,499 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 15:17:19,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 343 treesize of output 326 [2022-12-14 15:17:19,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:19,533 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:19,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 339 treesize of output 337 [2022-12-14 15:17:19,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:19,624 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 15:17:19,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 397 treesize of output 350 [2022-12-14 15:17:19,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:19,647 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 15:17:19,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 411 treesize of output 385 [2022-12-14 15:17:19,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,661 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:19,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:19,683 INFO L321 Elim1Store]: treesize reduction 58, result has 26.6 percent of original size [2022-12-14 15:17:19,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 391 treesize of output 385 [2022-12-14 15:17:19,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:19,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:17:19,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:19,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:19,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:19,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:19,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2022-12-14 15:17:19,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:17:19,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:19,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:17:19,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:19,845 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:19,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:19,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:19,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:19,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:19,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:19,914 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:17:20,820 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1553#(and (= |ULTIMATE.start_main_~data_new~0#1| 1) (<= (+ |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| |ULTIMATE.start_sll_circular_create_#res#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1) (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|)) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |ULTIMATE.start_sll_circular_create_~last~0#1.offset|)) (not (= |ULTIMATE.start_main_~data_init~0#1| (select (select |#memory_int| |ULTIMATE.start_main_~ptr~0#1.base|) (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)))) (= |ULTIMATE.start_main_~head~1#1.offset| |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (= |ULTIMATE.start_main_~data_init~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (= |ULTIMATE.start_main_~head~1#1.offset| |ULTIMATE.start_main_~ptr~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |ULTIMATE.start_sll_circular_create_~last~0#1.offset|)) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= 5 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 5) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_main_~head~1#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (= (select |#valid| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) 1) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~ptr~0#1.base| |ULTIMATE.start_main_~head~1#1.base|) (= |#NULL.base| 0))' at error location [2022-12-14 15:17:20,820 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:17:20,820 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:17:20,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2022-12-14 15:17:20,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859986769] [2022-12-14 15:17:20,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:17:20,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 15:17:20,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:17:20,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 15:17:20,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2022-12-14 15:17:20,823 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:21,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:17:21,116 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2022-12-14 15:17:21,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:17:21,117 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-12-14 15:17:21,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:17:21,117 INFO L225 Difference]: With dead ends: 66 [2022-12-14 15:17:21,117 INFO L226 Difference]: Without dead ends: 66 [2022-12-14 15:17:21,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=234, Invalid=956, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 15:17:21,118 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 216 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:17:21,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 81 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:17:21,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-12-14 15:17:21,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 53. [2022-12-14 15:17:21,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 52 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2022-12-14 15:17:21,120 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 25 [2022-12-14 15:17:21,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:17:21,120 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2022-12-14 15:17:21,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 17 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:21,120 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2022-12-14 15:17:21,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 15:17:21,121 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:17:21,121 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:17:21,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 15:17:21,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:17:21,322 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:17:21,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:17:21,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1223466923, now seen corresponding path program 1 times [2022-12-14 15:17:21,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:17:21,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336208936] [2022-12-14 15:17:21,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:21,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:17:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:22,063 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:17:22,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:17:22,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336208936] [2022-12-14 15:17:22,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336208936] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:17:22,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734847629] [2022-12-14 15:17:22,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:22,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:17:22,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:17:22,065 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:17:22,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:17:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:22,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 60 conjunts are in the unsatisfiable core [2022-12-14 15:17:22,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:17:22,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:22,216 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 15:17:22,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-14 15:17:22,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:22,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:22,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:22,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 15:17:22,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:22,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-12-14 15:17:22,333 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:17:22,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2022-12-14 15:17:22,343 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 15:17:22,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:22,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:22,497 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 15:17:22,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 44 [2022-12-14 15:17:22,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:22,505 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 15:17:22,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 55 [2022-12-14 15:17:22,532 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:17:22,533 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 32 [2022-12-14 15:17:22,540 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:17:22,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 31 [2022-12-14 15:17:22,576 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:17:22,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:17:22,983 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:17:22,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734847629] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:17:22,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1646416492] [2022-12-14 15:17:22,986 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 15:17:22,986 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:17:22,986 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:17:22,986 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:17:22,986 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:17:23,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:17:23,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:23,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:23,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 15:17:23,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:23,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,055 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 15:17:23,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:23,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 15:17:23,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,116 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:23,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:23,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 15:17:23,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 15:17:23,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,187 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:23,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:23,306 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 15:17:23,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 334 treesize of output 337 [2022-12-14 15:17:23,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:23,486 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:23,510 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:23,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 348 treesize of output 346 [2022-12-14 15:17:23,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:23,524 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:23,547 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:23,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 348 treesize of output 346 [2022-12-14 15:17:23,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:23,581 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 15:17:23,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 352 treesize of output 335 [2022-12-14 15:17:23,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:23,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:23,663 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 15:17:23,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 426 treesize of output 375 [2022-12-14 15:17:23,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:23,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:23,706 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-12-14 15:17:23,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 420 treesize of output 414 [2022-12-14 15:17:23,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:23,741 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-12-14 15:17:23,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 440 treesize of output 401 [2022-12-14 15:17:23,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:17:23,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:23,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:23,833 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:23,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:23,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:23,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:17:23,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2022-12-14 15:17:23,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:23,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:17:23,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:23,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:23,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:23,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:23,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:23,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:23,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:23,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:23,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:23,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 15:17:24,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:24,066 INFO L321 Elim1Store]: treesize reduction 48, result has 47.3 percent of original size [2022-12-14 15:17:24,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 49 [2022-12-14 15:17:24,088 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-12-14 15:17:24,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 30 [2022-12-14 15:17:24,102 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:24,132 INFO L321 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-12-14 15:17:24,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 41 [2022-12-14 15:17:24,139 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-12-14 15:17:24,148 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-12-14 15:17:24,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 15:17:24,282 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:24,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:24,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:24,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:24,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 15:17:24,371 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:17:25,418 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1882#(and (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_main_~data_init~0#1|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= |ULTIMATE.start_main_~data_init~0#1| 1) (not (= (select |#valid| |ULTIMATE.start_main_~ptr~0#1.base|) 1)) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~head~1#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= 0 |ULTIMATE.start_main_~head~1#1.offset|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= |#NULL.base| 0) (<= 5 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 5) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 15:17:25,419 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:17:25,419 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:17:25,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2022-12-14 15:17:25,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241964884] [2022-12-14 15:17:25,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:17:25,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-12-14 15:17:25,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:17:25,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-12-14 15:17:25,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=989, Unknown=0, NotChecked=0, Total=1122 [2022-12-14 15:17:25,420 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:26,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:17:26,365 INFO L93 Difference]: Finished difference Result 108 states and 113 transitions. [2022-12-14 15:17:26,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 15:17:26,366 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 15:17:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:17:26,366 INFO L225 Difference]: With dead ends: 108 [2022-12-14 15:17:26,366 INFO L226 Difference]: Without dead ends: 108 [2022-12-14 15:17:26,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=442, Invalid=2008, Unknown=0, NotChecked=0, Total=2450 [2022-12-14 15:17:26,367 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 672 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:17:26,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 159 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:17:26,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-12-14 15:17:26,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 60. [2022-12-14 15:17:26,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 59 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:26,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2022-12-14 15:17:26,373 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 28 [2022-12-14 15:17:26,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:17:26,373 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2022-12-14 15:17:26,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:26,373 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2022-12-14 15:17:26,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 15:17:26,373 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:17:26,373 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:17:26,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 15:17:26,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:17:26,575 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:17:26,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:17:26,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1223466924, now seen corresponding path program 1 times [2022-12-14 15:17:26,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:17:26,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41800835] [2022-12-14 15:17:26,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:26,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:17:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:27,226 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:17:27,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:17:27,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41800835] [2022-12-14 15:17:27,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41800835] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:17:27,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577661368] [2022-12-14 15:17:27,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:27,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:17:27,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:17:27,228 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:17:27,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:17:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:27,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 60 conjunts are in the unsatisfiable core [2022-12-14 15:17:27,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:17:27,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:27,443 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 15:17:27,444 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-14 15:17:27,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:27,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:27,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:27,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 15:17:27,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:27,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-12-14 15:17:27,577 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:27,586 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:17:27,586 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 28 [2022-12-14 15:17:27,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:27,594 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 15:17:27,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:27,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:27,816 INFO L321 Elim1Store]: treesize reduction 64, result has 32.6 percent of original size [2022-12-14 15:17:27,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 66 treesize of output 87 [2022-12-14 15:17:27,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:27,853 INFO L321 Elim1Store]: treesize reduction 64, result has 32.6 percent of original size [2022-12-14 15:17:27,853 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 65 treesize of output 86 [2022-12-14 15:17:28,011 INFO L321 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2022-12-14 15:17:28,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 67 treesize of output 71 [2022-12-14 15:17:28,032 INFO L321 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2022-12-14 15:17:28,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 52 treesize of output 56 [2022-12-14 15:17:28,152 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:17:28,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:17:28,861 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:17:28,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577661368] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:17:28,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [279078033] [2022-12-14 15:17:28,862 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 15:17:28,862 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:17:28,862 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:17:28,862 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:17:28,862 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:17:28,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,874 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:17:28,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 15:17:28,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:28,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:28,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 15:17:28,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,942 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:28,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:28,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 15:17:28,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:28,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 15:17:29,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:29,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:29,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:29,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:29,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 15:17:29,173 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 15:17:29,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 334 treesize of output 337 [2022-12-14 15:17:29,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:29,341 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 15:17:29,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 343 treesize of output 326 [2022-12-14 15:17:29,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:29,375 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:29,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 339 treesize of output 337 [2022-12-14 15:17:29,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:29,407 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:29,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 339 treesize of output 337 [2022-12-14 15:17:29,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,481 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:29,487 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 15:17:29,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 411 treesize of output 385 [2022-12-14 15:17:29,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:29,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,505 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:29,529 INFO L321 Elim1Store]: treesize reduction 58, result has 26.6 percent of original size [2022-12-14 15:17:29,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 391 treesize of output 385 [2022-12-14 15:17:29,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:29,547 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 15:17:29,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 397 treesize of output 350 [2022-12-14 15:17:29,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:17:29,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:29,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:29,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:29,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:29,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2022-12-14 15:17:29,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:17:29,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:29,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:29,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:17:29,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:29,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:29,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:29,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:29,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:29,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:29,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:29,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:29,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:29,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 15:17:29,835 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-12-14 15:17:29,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 27 [2022-12-14 15:17:29,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:29,884 INFO L321 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-12-14 15:17:29,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 41 [2022-12-14 15:17:29,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:29,930 INFO L321 Elim1Store]: treesize reduction 52, result has 42.9 percent of original size [2022-12-14 15:17:29,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 45 [2022-12-14 15:17:29,939 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-14 15:17:29,940 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-14 15:17:30,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:30,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:30,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 15:17:30,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:30,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 15:17:30,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:30,104 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:17:31,244 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2283#(and (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_main_~data_init~0#1|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (or (not (<= (+ |ULTIMATE.start_main_~ptr~0#1.offset| 8) (select |#length| |ULTIMATE.start_main_~ptr~0#1.base|))) (not (<= 0 (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)))) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= |ULTIMATE.start_main_~data_init~0#1| 1) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~head~1#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= 0 |ULTIMATE.start_main_~head~1#1.offset|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= 1 |ULTIMATE.start_main_~data_new~0#1|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= |#NULL.base| 0) (<= 5 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 5) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 15:17:31,245 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:17:31,245 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:17:31,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 26 [2022-12-14 15:17:31,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373941265] [2022-12-14 15:17:31,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:17:31,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-14 15:17:31,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:17:31,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-14 15:17:31,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1327, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 15:17:31,246 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand has 27 states, 26 states have (on average 2.4615384615384617) internal successors, (64), 27 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:33,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:17:33,153 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2022-12-14 15:17:33,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-14 15:17:33,154 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.4615384615384617) internal successors, (64), 27 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 15:17:33,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:17:33,154 INFO L225 Difference]: With dead ends: 97 [2022-12-14 15:17:33,154 INFO L226 Difference]: Without dead ends: 97 [2022-12-14 15:17:33,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=580, Invalid=2726, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 15:17:33,155 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1007 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:17:33,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1007 Valid, 127 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 15:17:33,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-12-14 15:17:33,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 62. [2022-12-14 15:17:33,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 61 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:33,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2022-12-14 15:17:33,157 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 68 transitions. Word has length 28 [2022-12-14 15:17:33,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:17:33,157 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 68 transitions. [2022-12-14 15:17:33,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.4615384615384617) internal successors, (64), 27 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:33,158 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 68 transitions. [2022-12-14 15:17:33,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 15:17:33,158 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:17:33,159 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:17:33,163 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 15:17:33,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 15:17:33,360 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:17:33,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:17:33,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1069325026, now seen corresponding path program 1 times [2022-12-14 15:17:33,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:17:33,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197444708] [2022-12-14 15:17:33,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:33,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:17:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:34,561 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:17:34,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:17:34,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197444708] [2022-12-14 15:17:34,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197444708] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:17:34,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665768363] [2022-12-14 15:17:34,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:34,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:17:34,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:17:34,563 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:17:34,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 15:17:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:34,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 73 conjunts are in the unsatisfiable core [2022-12-14 15:17:34,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:17:34,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:17:34,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:34,812 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 15:17:34,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 28 [2022-12-14 15:17:34,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-12-14 15:17:34,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:34,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:34,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 28 [2022-12-14 15:17:34,880 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 15:17:34,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 36 [2022-12-14 15:17:34,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:34,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 15:17:34,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2022-12-14 15:17:34,960 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:17:34,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 30 [2022-12-14 15:17:34,970 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 15:17:34,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:35,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:35,103 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 15:17:35,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 46 [2022-12-14 15:17:35,121 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 15:17:35,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 51 [2022-12-14 15:17:35,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:35,127 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 15:17:35,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 51 [2022-12-14 15:17:35,144 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 15:17:35,167 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:17:35,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 34 [2022-12-14 15:17:35,174 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:17:35,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 33 [2022-12-14 15:17:35,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 15:17:35,274 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:17:35,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:17:37,619 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse8 (+ 4 |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|)) (.cse4 (+ |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 4))) (let ((.cse1 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse56 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse56 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse56 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse2 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (let ((.cse54 (select (store (let ((.cse55 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse55 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse55 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse54 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse54 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))))))) (.cse7 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (= (select (select (store (let ((.cse53 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse53 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse53 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse0 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (= (select (select (store (let ((.cse52 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse52 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse52 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse6 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse50 (select (store (let ((.cse51 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse51 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse51 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse50 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse50 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)))))) (.cse14 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse49 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse49 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse49 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse5 (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|))) (and .cse0 .cse1 .cse2 (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select (select (store (let ((.cse3 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse3 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse3 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse5) .cse6 (or (and .cse2 .cse7) .cse5) .cse7 (or (and .cse0 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= (select v_ArrVal_1135 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse9 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse9 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse9 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse1 .cse2 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse10 (select (store (let ((.cse11 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse11 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse11 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse10 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse10 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse6 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (let ((.cse12 (select (store (let ((.cse13 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse13 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse13 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse12 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse12 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) .cse7 .cse14 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (= (select (select (store (let ((.cse15 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse15 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse15 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse16 (select (store (let ((.cse17 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse17 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse17 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse16 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse16 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (= (select (select (store (let ((.cse18 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse18 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse18 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))))) .cse5) (or (and .cse0 .cse6 .cse14) .cse5) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select v_ArrVal_1135 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select (select (store (let ((.cse19 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse19 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse19 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse5) (or (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|) (let ((.cse28 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse46 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse46 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse46 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse30 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (= (select (select (store (let ((.cse45 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse45 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse45 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse31 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse43 (select (store (let ((.cse44 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse44 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse44 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse43 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse43 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)))) (.cse20 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (let ((.cse41 (select (store (let ((.cse42 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse42 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse42 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse41 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse41 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))))) (.cse29 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (= (select (select (store (let ((.cse40 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse40 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse40 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) (.cse34 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse39 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse39 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse39 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))))) (and (or (and .cse20 (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse21 (select (store (let ((.cse22 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse22 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse22 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse21 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse21 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select v_ArrVal_1135 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse23 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse23 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse23 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse24 (select (store (let ((.cse25 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse25 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse25 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse24 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse24 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (let ((.cse26 (select (store (let ((.cse27 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse27 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse27 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse26 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse26 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) .cse28 .cse29 .cse30 .cse31 (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (= (select (select (store (let ((.cse32 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse32 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse32 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (= (select (select (store (let ((.cse33 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse33 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse33 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)) .cse34) .cse5) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select v_ArrVal_1135 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select (select (store (let ((.cse35 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse35 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse35 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse5) .cse20 (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select (select (store (let ((.cse36 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse36 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse36 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse5) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse37 (select (store (let ((.cse38 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse38 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse38 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse37 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse37 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) (or (and .cse28 .cse30 .cse31) .cse5) .cse29 .cse30 .cse31 (or (and .cse20 .cse29) .cse5) .cse34))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse47 (select (store (let ((.cse48 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse48 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse48 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse47 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse47 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse8) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse4) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))))) is different from false [2022-12-14 15:17:39,027 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 4))) (let ((.cse35 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (let ((.cse54 (select (store (let ((.cse55 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse55 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse55 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse54 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse54 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)))))) (.cse0 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (= (select (select (store (let ((.cse53 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse53 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse53 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse36 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse51 (select (store (let ((.cse52 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse52 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse52 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse51 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse51 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse41 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse50 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse50 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse50 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse39 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse49 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse49 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse49 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse40 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (= (select (select (store (let ((.cse48 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse48 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse48 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse1 (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0))) (and .cse0 (or (let ((.cse10 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse29 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse29 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse29 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse7 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse27 (select (store (let ((.cse28 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse28 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse28 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse27 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse27 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse4 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (let ((.cse25 (select (store (let ((.cse26 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse26 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse26 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse25 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse25 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)))) (.cse11 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (= (select (select (store (let ((.cse24 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse24 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse24 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))))) (.cse12 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (= (select (select (store (let ((.cse23 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse23 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse23 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse14 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse22 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse22 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse22 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))))))) (and (or .cse1 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select (select (store (let ((.cse2 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse2 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse2 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (or (and .cse4 (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse5 (select (store (let ((.cse6 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse6 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse6 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse5 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse5 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse7 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (let ((.cse8 (select (store (let ((.cse9 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse9 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse9 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse8 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse8 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) .cse10 .cse11 .cse12 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select (select (store (let ((.cse13 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse13 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse13 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse14 (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse15 (select (store (let ((.cse16 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse16 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse16 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse15 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse15 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))) (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (= (select (select (store (let ((.cse17 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse17 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse17 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (= (select (select (store (let ((.cse18 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse18 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse18 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse1) (or .cse1 (and .cse7 .cse10 .cse12)) .cse4 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse19 (select (store (let ((.cse20 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse20 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse20 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse19 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse19 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))))) (or .cse1 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select (select (store (let ((.cse21 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse21 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse21 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) .cse7 (or .cse1 (and .cse4 .cse11)) .cse11 .cse12 .cse14)) (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0)) (or (and (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= (select (select (store (let ((.cse30 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse30 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse30 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse0 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse31 (select (store (let ((.cse32 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse32 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse32 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse31 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse31 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (let ((.cse33 (select (store (let ((.cse34 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse34 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse34 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse33 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse33 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))))) .cse35 .cse36 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse37 (select (store (let ((.cse38 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse38 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse38 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse37 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse37 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) .cse39 .cse40 .cse41 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (= (select (select (store (let ((.cse42 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse42 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse42 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (= (select (select (store (let ((.cse43 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse43 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse43 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))))) .cse1) (or .cse1 (and .cse35 .cse40)) .cse35 .cse36 (or .cse1 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select (select (store (let ((.cse44 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse44 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse44 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (or (and .cse0 .cse36 .cse41) .cse1) .cse39 .cse40 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int)) (let ((.cse45 (select (store (let ((.cse46 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse46 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse46 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (or (= (select .cse45 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse45 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))))))) (or .cse1 (forall ((v_ArrVal_1126 (Array Int Int)) (v_ArrVal_1131 Int) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= (select (select (store (let ((.cse47 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1126))) (store .cse47 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse47 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse3) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse3) |c_ULTIMATE.start_main_~data_init~0#1|))))))) is different from false [2022-12-14 15:17:39,421 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:17:39,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 37 [2022-12-14 15:17:39,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:39,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:39,431 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:17:39,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 43 [2022-12-14 15:17:39,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 15:17:39,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 29 [2022-12-14 15:17:39,457 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,464 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 15:17:39,470 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,477 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,486 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:17:39,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 61 [2022-12-14 15:17:39,488 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:39,495 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 15:17:39,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 269 treesize of output 258 [2022-12-14 15:17:39,500 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:39,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:39,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 249 [2022-12-14 15:17:39,508 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:39,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 256 treesize of output 228 [2022-12-14 15:17:39,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:39,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 112 [2022-12-14 15:17:39,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:39,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 106 [2022-12-14 15:17:39,546 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 15:17:39,554 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 15:17:39,559 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,564 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,569 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 15:17:39,574 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,579 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 15:17:39,584 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 15:17:39,591 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,596 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,602 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,608 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 15:17:39,614 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,628 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,634 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 15:17:39,640 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,648 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 15:17:39,655 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,659 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 15:17:39,664 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 15:17:39,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 15:17:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 10 not checked. [2022-12-14 15:17:39,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665768363] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:17:39,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1352603719] [2022-12-14 15:17:39,757 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-12-14 15:17:39,757 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:17:39,758 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:17:39,758 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:17:39,758 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:17:39,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:17:39,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:39,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:39,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 15:17:39,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:39,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:39,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 15:17:39,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 15:17:39,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:39,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 15:17:39,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:39,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 15:17:39,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:39,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:39,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:40,031 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 15:17:40,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 334 treesize of output 337 [2022-12-14 15:17:40,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,208 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 15:17:40,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 352 treesize of output 335 [2022-12-14 15:17:40,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,242 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:40,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 348 treesize of output 346 [2022-12-14 15:17:40,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,276 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:40,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 348 treesize of output 346 [2022-12-14 15:17:40,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,364 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 15:17:40,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 426 treesize of output 375 [2022-12-14 15:17:40,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,395 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-12-14 15:17:40,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 440 treesize of output 401 [2022-12-14 15:17:40,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,434 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-12-14 15:17:40,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 420 treesize of output 414 [2022-12-14 15:17:40,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:17:40,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:40,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:40,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:40,510 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:40,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:17:40,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:40,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2022-12-14 15:17:40,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:17:40,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:40,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:40,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:40,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:40,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:40,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:40,608 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:40,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 15:17:40,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:40,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:40,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:40,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,741 INFO L321 Elim1Store]: treesize reduction 48, result has 47.3 percent of original size [2022-12-14 15:17:40,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 49 [2022-12-14 15:17:40,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:40,784 INFO L321 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-12-14 15:17:40,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 41 [2022-12-14 15:17:40,808 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-12-14 15:17:40,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 25 [2022-12-14 15:17:40,814 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-12-14 15:17:40,816 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-12-14 15:17:40,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 15:17:40,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:40,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:41,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:41,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 15:17:41,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:41,030 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:17:42,333 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2703#(and (<= 0 |#NULL.base|) (<= 1 |ULTIMATE.start_main_~data_init~0#1|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (<= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (<= |ULTIMATE.start_sll_circular_create_#res#1.offset| 0) (<= |ULTIMATE.start_main_~data_init~0#1| 1) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (<= |ULTIMATE.start_main_~head~1#1.offset| 0) (<= 0 |ULTIMATE.start_sll_circular_create_~last~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (<= 0 |ULTIMATE.start_sll_circular_create_~head~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (<= 0 |ULTIMATE.start_main_~head~1#1.offset|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (<= 1 |ULTIMATE.start_main_~data_new~0#1|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= |#NULL.base| 0) (<= 5 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ptr~0#1.offset| 4)) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 5) (<= 0 |#NULL.offset|) (<= 0 |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-12-14 15:17:42,333 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:17:42,333 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:17:42,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 12] total 35 [2022-12-14 15:17:42,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554955764] [2022-12-14 15:17:42,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:17:42,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-12-14 15:17:42,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:17:42,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-12-14 15:17:42,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1874, Unknown=12, NotChecked=178, Total=2256 [2022-12-14 15:17:42,335 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. Second operand has 36 states, 36 states have (on average 2.0277777777777777) internal successors, (73), 35 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:46,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:17:46,073 INFO L93 Difference]: Finished difference Result 82 states and 85 transitions. [2022-12-14 15:17:46,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-12-14 15:17:46,073 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 2.0277777777777777) internal successors, (73), 35 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-12-14 15:17:46,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:17:46,074 INFO L225 Difference]: With dead ends: 82 [2022-12-14 15:17:46,074 INFO L226 Difference]: Without dead ends: 82 [2022-12-14 15:17:46,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 898 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=520, Invalid=3258, Unknown=12, NotChecked=242, Total=4032 [2022-12-14 15:17:46,076 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 284 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 125 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:17:46,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 160 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 681 Invalid, 0 Unknown, 125 Unchecked, 0.7s Time] [2022-12-14 15:17:46,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-12-14 15:17:46,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 62. [2022-12-14 15:17:46,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 61 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:46,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 67 transitions. [2022-12-14 15:17:46,078 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 67 transitions. Word has length 30 [2022-12-14 15:17:46,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:17:46,078 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 67 transitions. [2022-12-14 15:17:46,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 2.0277777777777777) internal successors, (73), 35 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:46,078 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 67 transitions. [2022-12-14 15:17:46,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 15:17:46,079 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:17:46,079 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:17:46,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 15:17:46,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:17:46,280 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:17:46,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:17:46,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1209551977, now seen corresponding path program 1 times [2022-12-14 15:17:46,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:17:46,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234147235] [2022-12-14 15:17:46,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:46,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:17:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:46,645 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:17:46,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:17:46,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234147235] [2022-12-14 15:17:46,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234147235] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:17:46,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258846955] [2022-12-14 15:17:46,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:46,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:17:46,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:17:46,646 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:17:46,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 15:17:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:46,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 52 conjunts are in the unsatisfiable core [2022-12-14 15:17:46,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:17:46,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:46,805 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:17:46,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 15:17:46,822 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 15:17:46,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 15:17:46,852 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 15:17:46,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 15:17:46,907 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-14 15:17:46,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 15:17:46,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:46,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:46,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-12-14 15:17:46,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2022-12-14 15:17:47,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,042 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 15:17:47,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 31 [2022-12-14 15:17:47,052 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 15:17:47,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 15 [2022-12-14 15:17:47,054 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:17:47,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:17:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 13 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 15:17:47,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258846955] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:17:47,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2104224173] [2022-12-14 15:17:47,291 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-12-14 15:17:47,291 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:17:47,291 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:17:47,291 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:17:47,292 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:17:47,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:17:47,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:47,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 15:17:47,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:47,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:47,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,367 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 15:17:47,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,375 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:47,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,400 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 15:17:47,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:47,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 15:17:47,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 15:17:47,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 15:17:47,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:47,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 15:17:47,595 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 15:17:47,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 334 treesize of output 337 [2022-12-14 15:17:47,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:47,766 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 15:17:47,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 349 treesize of output 332 [2022-12-14 15:17:47,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:47,779 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:47,802 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:47,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 345 treesize of output 343 [2022-12-14 15:17:47,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:47,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:47,837 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 15:17:47,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 345 treesize of output 343 [2022-12-14 15:17:47,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:47,911 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:47,917 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 15:17:47,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 419 treesize of output 368 [2022-12-14 15:17:47,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:47,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:47,958 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-12-14 15:17:47,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 413 treesize of output 407 [2022-12-14 15:17:47,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:47,974 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:47,990 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-12-14 15:17:47,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 433 treesize of output 398 [2022-12-14 15:17:48,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:48,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:17:48,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:48,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:48,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:48,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:48,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 14 [2022-12-14 15:17:48,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:17:48,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:17:48,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 15:17:48,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:17:48,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:48,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:48,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:48,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:17:48,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:48,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:48,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2022-12-14 15:17:48,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:48,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:48,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:48,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 15:17:48,285 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:17:50,458 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3097#(and (<= (+ |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 4) (select |#length| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= |ULTIMATE.start_sll_circular_create_#in~data#1| 1) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~head~1#1.base|) |ULTIMATE.start_main_~head~1#1.offset|) |ULTIMATE.start_main_~ptr~0#1.offset|) (= |ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0) (= |ULTIMATE.start_main_~ptr~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~head~1#1.base|) |ULTIMATE.start_main_~head~1#1.offset|)) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |ULTIMATE.start_sll_circular_create_~last~0#1.offset|)) (= |ULTIMATE.start_main_~head~1#1.offset| |ULTIMATE.start_sll_circular_create_#res#1.offset|) (<= |#NULL.offset| 0) (<= 5 |ULTIMATE.start_main_~len~0#1|) (= |ULTIMATE.start_main_~data_init~0#1| 1) (<= 1 |ULTIMATE.start_sll_circular_create_~data#1|) (= |ULTIMATE.start_main_~head~1#1.offset| |ULTIMATE.start_main_~ptr~0#1.offset|) (<= 1 |ULTIMATE.start_sll_circular_create_#in~data#1|) (= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |ULTIMATE.start_sll_circular_create_~last~0#1.offset|)) (<= 0 |ULTIMATE.start_main_~head~1#1.offset|) (<= |ULTIMATE.start_sll_circular_create_~len#1| 1) (= |ULTIMATE.start_sll_circular_create_~head~0#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (<= |ULTIMATE.start_sll_circular_create_~data#1| 1) (<= |ULTIMATE.start_main_~len~0#1| 5) (<= (+ |ULTIMATE.start_main_~head~1#1.offset| 8) (select |#length| |ULTIMATE.start_main_~head~1#1.base|)) (<= 5 |ULTIMATE.start_sll_circular_create_#in~len#1|) (<= |ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (= (+ (select (select |#memory_int| |ULTIMATE.start_main_~head~1#1.base|) (+ |ULTIMATE.start_main_~head~1#1.offset| 4)) 1) (+ |ULTIMATE.start_main_~len~0#1| |ULTIMATE.start_main_~data_new~0#1|)) (= (select (select |#memory_int| |ULTIMATE.start_main_~head~1#1.base|) (+ |ULTIMATE.start_main_~head~1#1.offset| 4)) 1) (<= |ULTIMATE.start_sll_circular_create_#in~len#1| 5) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_main_~head~1#1.base| |ULTIMATE.start_sll_circular_create_#res#1.base|) (= (select |#valid| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) 1) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~ptr~0#1.base| |ULTIMATE.start_main_~head~1#1.base|) (= |#NULL.base| 0) (= (select |#valid| |ULTIMATE.start_main_~head~1#1.base|) 1))' at error location [2022-12-14 15:17:50,459 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 15:17:50,459 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 15:17:50,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 24 [2022-12-14 15:17:50,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099259011] [2022-12-14 15:17:50,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 15:17:50,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 15:17:50,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:17:50,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 15:17:50,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1216, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 15:17:50,460 INFO L87 Difference]: Start difference. First operand 62 states and 67 transitions. Second operand has 25 states, 25 states have (on average 2.84) internal successors, (71), 24 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:50,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:17:50,743 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2022-12-14 15:17:50,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 15:17:50,744 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.84) internal successors, (71), 24 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-12-14 15:17:50,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:17:50,744 INFO L225 Difference]: With dead ends: 70 [2022-12-14 15:17:50,744 INFO L226 Difference]: Without dead ends: 70 [2022-12-14 15:17:50,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 64 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=370, Invalid=1792, Unknown=0, NotChecked=0, Total=2162 [2022-12-14 15:17:50,745 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 200 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:17:50,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 238 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 15:17:50,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-12-14 15:17:50,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 57. [2022-12-14 15:17:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 47 states have (on average 1.2765957446808511) internal successors, (60), 56 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:50,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2022-12-14 15:17:50,747 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 31 [2022-12-14 15:17:50,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:17:50,747 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2022-12-14 15:17:50,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.84) internal successors, (71), 24 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:17:50,747 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2022-12-14 15:17:50,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 15:17:50,747 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:17:50,747 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:17:50,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 15:17:50,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 15:17:50,949 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 22 more)] === [2022-12-14 15:17:50,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:17:50,950 INFO L85 PathProgramCache]: Analyzing trace with hash -488900476, now seen corresponding path program 2 times [2022-12-14 15:17:50,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:17:50,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534981100] [2022-12-14 15:17:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:17:50,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:17:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:17:52,044 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 32 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 15:17:52,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:17:52,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534981100] [2022-12-14 15:17:52,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534981100] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:17:52,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683373622] [2022-12-14 15:17:52,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 15:17:52,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:17:52,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:17:52,046 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:17:52,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60077261-acf5-4f5a-8f7b-8c7b9e8b85c5/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 15:17:52,427 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 15:17:52,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 15:17:52,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 81 conjunts are in the unsatisfiable core [2022-12-14 15:17:52,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:17:52,488 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 15:17:52,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 15:17:52,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:52,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2022-12-14 15:17:52,605 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 15:17:52,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26 [2022-12-14 15:17:52,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:52,669 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:17:52,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 32 [2022-12-14 15:17:52,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:17:52,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:52,764 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:52,767 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 15:17:52,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 55 [2022-12-14 15:17:52,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 75 [2022-12-14 15:17:52,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:52,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:52,899 INFO L321 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-12-14 15:17:52,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 69 [2022-12-14 15:17:52,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:52,910 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 15:17:52,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 32 [2022-12-14 15:17:53,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:53,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:53,272 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 15:17:53,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 135 treesize of output 113 [2022-12-14 15:17:53,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:53,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:53,281 INFO L321 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2022-12-14 15:17:53,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 121 treesize of output 100 [2022-12-14 15:17:53,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:53,658 INFO L321 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2022-12-14 15:17:53,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 65 [2022-12-14 15:17:53,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:53,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:53,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:17:53,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:53,669 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:53,671 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 15:17:53,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 49 [2022-12-14 15:17:53,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:53,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:17:53,751 INFO L321 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-12-14 15:17:53,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 46 [2022-12-14 15:17:53,762 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-14 15:17:53,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2022-12-14 15:17:53,821 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 15:17:53,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:17:59,664 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 15:17:59,665 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 65741 treesize of output 63053