./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.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_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/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_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/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_1e382c14-34b5-489f-99e0-b630593b27d3/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 5b4659b27a54f579598b48dab11e67b47aff28d030592fa757cae575afffc3b5 --- 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 05:43:47,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:43:47,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:43:47,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:43:47,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:43:47,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:43:47,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:43:47,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:43:47,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:43:47,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:43:47,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:43:47,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:43:47,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:43:47,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:43:47,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:43:47,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:43:47,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:43:47,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:43:47,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:43:47,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:43:47,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:43:47,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:43:47,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:43:47,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:43:47,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:43:47,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:43:47,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:43:47,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:43:47,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:43:47,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:43:47,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:43:47,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:43:47,133 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:43:47,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:43:47,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:43:47,135 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:43:47,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:43:47,136 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:43:47,136 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:43:47,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:43:47,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:43:47,139 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 05:43:47,161 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:43:47,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:43:47,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:43:47,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:43:47,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:43:47,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:43:47,163 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:43:47,164 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:43:47,164 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:43:47,164 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:43:47,164 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:43:47,164 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:43:47,165 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:43:47,165 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:43:47,165 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:43:47,165 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:43:47,165 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:43:47,166 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:43:47,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 05:43:47,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 05:43:47,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:43:47,167 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:43:47,167 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:43:47,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:43:47,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:43:47,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:43:47,168 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 05:43:47,168 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 05:43:47,168 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 05:43:47,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:43:47,169 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 05:43:47,169 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:43:47,169 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:43:47,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:43:47,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:43:47,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:43:47,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:43:47,170 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:43:47,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:43:47,170 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:43:47,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:43:47,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:43:47,171 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_1e382c14-34b5-489f-99e0-b630593b27d3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b4659b27a54f579598b48dab11e67b47aff28d030592fa757cae575afffc3b5 [2022-12-14 05:43:47,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:43:47,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:43:47,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:43:47,378 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:43:47,378 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:43:47,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i [2022-12-14 05:43:50,070 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:43:50,246 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:43:50,247 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i [2022-12-14 05:43:50,254 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/data/a7e3cb530/16284536c4a4485082af214f59debb67/FLAG44efad2bd [2022-12-14 05:43:50,266 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/data/a7e3cb530/16284536c4a4485082af214f59debb67 [2022-12-14 05:43:50,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:43:50,269 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:43:50,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:43:50,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:43:50,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:43:50,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@770537b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50, skipping insertion in model container [2022-12-14 05:43:50,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:43:50,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:43:50,474 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_1e382c14-34b5-489f-99e0-b630593b27d3/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i[24132,24145] [2022-12-14 05:43:50,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:43:50,483 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:43:50,511 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_1e382c14-34b5-489f-99e0-b630593b27d3/sv-benchmarks/c/list-ext3-properties/sll_circular_traversal-1.i[24132,24145] [2022-12-14 05:43:50,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:43:50,528 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:43:50,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50 WrapperNode [2022-12-14 05:43:50,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:43:50,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:43:50,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:43:50,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:43:50,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,557 INFO L138 Inliner]: procedures = 122, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 93 [2022-12-14 05:43:50,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:43:50,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:43:50,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:43:50,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:43:50,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,575 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,578 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:43:50,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:43:50,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:43:50,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:43:50,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (1/1) ... [2022-12-14 05:43:50,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:43:50,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:43:50,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:43:50,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:43:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2022-12-14 05:43:50,630 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2022-12-14 05:43:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:43:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:43:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:43:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:43:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:43:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:43:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:43:50,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:43:50,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:43:50,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:43:50,713 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:43:50,715 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:43:50,734 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2022-12-14 05:43:50,895 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:43:50,922 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:43:50,923 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 05:43:50,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:43:50 BoogieIcfgContainer [2022-12-14 05:43:50,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:43:50,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:43:50,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:43:50,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:43:50,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:43:50" (1/3) ... [2022-12-14 05:43:50,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61246dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:43:50, skipping insertion in model container [2022-12-14 05:43:50,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:43:50" (2/3) ... [2022-12-14 05:43:50,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61246dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:43:50, skipping insertion in model container [2022-12-14 05:43:50,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:43:50" (3/3) ... [2022-12-14 05:43:50,932 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_circular_traversal-1.i [2022-12-14 05:43:50,947 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:43:50,947 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2022-12-14 05:43:50,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:43:50,985 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;@45756744, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:43:50,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-12-14 05:43:50,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 31 states have (on average 2.225806451612903) internal successors, (69), 60 states have internal predecessors, (69), 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 05:43:50,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 05:43:50,993 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:43:50,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 05:43:50,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:43:50,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:43:50,998 INFO L85 PathProgramCache]: Analyzing trace with hash 164750, now seen corresponding path program 1 times [2022-12-14 05:43:51,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:43:51,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604513359] [2022-12-14 05:43:51,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:43:51,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:43:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:43:51,151 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 05:43:51,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:43:51,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604513359] [2022-12-14 05:43:51,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604513359] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:43:51,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:43:51,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:43:51,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927214711] [2022-12-14 05:43:51,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:43:51,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:43:51,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:43:51,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:43:51,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:43:51,182 INFO L87 Difference]: Start difference. First operand has 62 states, 31 states have (on average 2.225806451612903) internal successors, (69), 60 states have internal predecessors, (69), 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 05:43:51,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:43:51,261 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2022-12-14 05:43:51,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:43:51,263 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 05:43:51,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:43:51,277 INFO L225 Difference]: With dead ends: 83 [2022-12-14 05:43:51,277 INFO L226 Difference]: Without dead ends: 78 [2022-12-14 05:43:51,278 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 05:43:51,280 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 54 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:43:51,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 55 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:43:51,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-14 05:43:51,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 54. [2022-12-14 05:43:51,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 29 states have (on average 2.0) internal successors, (58), 53 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 05:43:51,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2022-12-14 05:43:51,303 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 3 [2022-12-14 05:43:51,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:43:51,303 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2022-12-14 05:43:51,303 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 05:43:51,304 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2022-12-14 05:43:51,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 05:43:51,304 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:43:51,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 05:43:51,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:43:51,304 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:43:51,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:43:51,306 INFO L85 PathProgramCache]: Analyzing trace with hash 164751, now seen corresponding path program 1 times [2022-12-14 05:43:51,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:43:51,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496588790] [2022-12-14 05:43:51,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:43:51,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:43:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:43:51,378 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 05:43:51,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:43:51,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496588790] [2022-12-14 05:43:51,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496588790] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:43:51,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:43:51,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:43:51,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247380025] [2022-12-14 05:43:51,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:43:51,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:43:51,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:43:51,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:43:51,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:43:51,381 INFO L87 Difference]: Start difference. First operand 54 states and 58 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 05:43:51,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:43:51,438 INFO L93 Difference]: Finished difference Result 92 states and 100 transitions. [2022-12-14 05:43:51,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:43:51,438 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 05:43:51,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:43:51,439 INFO L225 Difference]: With dead ends: 92 [2022-12-14 05:43:51,439 INFO L226 Difference]: Without dead ends: 92 [2022-12-14 05:43:51,439 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 05:43:51,440 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 45 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 72 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 05:43:51,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 72 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:43:51,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-12-14 05:43:51,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 54. [2022-12-14 05:43:51,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 31 states have (on average 1.903225806451613) internal successors, (59), 53 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:43:51,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2022-12-14 05:43:51,445 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 3 [2022-12-14 05:43:51,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:43:51,445 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2022-12-14 05:43:51,445 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 05:43:51,445 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2022-12-14 05:43:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 05:43:51,446 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:43:51,446 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:43:51,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:43:51,446 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:43:51,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:43:51,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1829559840, now seen corresponding path program 1 times [2022-12-14 05:43:51,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:43:51,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107254991] [2022-12-14 05:43:51,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:43:51,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:43:51,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:43:51,537 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 05:43:51,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:43:51,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107254991] [2022-12-14 05:43:51,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107254991] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:43:51,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:43:51,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:43:51,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129902100] [2022-12-14 05:43:51,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:43:51,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:43:51,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:43:51,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:43:51,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:43:51,539 INFO L87 Difference]: Start difference. First operand 54 states and 59 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 05:43:51,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:43:51,654 INFO L93 Difference]: Finished difference Result 114 states and 125 transitions. [2022-12-14 05:43:51,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 05:43:51,654 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 05:43:51,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:43:51,655 INFO L225 Difference]: With dead ends: 114 [2022-12-14 05:43:51,655 INFO L226 Difference]: Without dead ends: 114 [2022-12-14 05:43:51,655 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 05:43:51,656 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 174 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:43:51,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 66 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:43:51,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-12-14 05:43:51,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 51. [2022-12-14 05:43:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 32 states have (on average 1.78125) internal successors, (57), 50 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 05:43:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 57 transitions. [2022-12-14 05:43:51,660 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 57 transitions. Word has length 7 [2022-12-14 05:43:51,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:43:51,660 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 57 transitions. [2022-12-14 05:43:51,661 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 05:43:51,661 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 57 transitions. [2022-12-14 05:43:51,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 05:43:51,661 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:43:51,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:43:51,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:43:51,662 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:43:51,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:43:51,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1829559841, now seen corresponding path program 1 times [2022-12-14 05:43:51,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:43:51,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135194543] [2022-12-14 05:43:51,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:43:51,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:43:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:43:51,706 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 05:43:51,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:43:51,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135194543] [2022-12-14 05:43:51,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135194543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:43:51,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:43:51,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:43:51,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319469020] [2022-12-14 05:43:51,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:43:51,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:43:51,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:43:51,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:43:51,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:43:51,708 INFO L87 Difference]: Start difference. First operand 51 states and 57 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 05:43:51,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:43:51,725 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2022-12-14 05:43:51,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:43:51,726 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 05:43:51,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:43:51,726 INFO L225 Difference]: With dead ends: 56 [2022-12-14 05:43:51,726 INFO L226 Difference]: Without dead ends: 56 [2022-12-14 05:43:51,726 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 05:43:51,727 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 7 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 86 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 05:43:51,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 86 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:43:51,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-14 05:43:51,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2022-12-14 05:43:51,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.7666666666666666) internal successors, (53), 48 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 05:43:51,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2022-12-14 05:43:51,730 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 7 [2022-12-14 05:43:51,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:43:51,730 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2022-12-14 05:43:51,731 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 05:43:51,731 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2022-12-14 05:43:51,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 05:43:51,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:43:51,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:43:51,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:43:51,731 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:43:51,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:43:51,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1829447012, now seen corresponding path program 1 times [2022-12-14 05:43:51,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:43:51,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657023205] [2022-12-14 05:43:51,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:43:51,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:43:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:43:51,768 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 05:43:51,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:43:51,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657023205] [2022-12-14 05:43:51,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657023205] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:43:51,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:43:51,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:43:51,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982132237] [2022-12-14 05:43:51,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:43:51,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:43:51,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:43:51,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:43:51,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:43:51,771 INFO L87 Difference]: Start difference. First operand 49 states and 53 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 05:43:51,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:43:51,803 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2022-12-14 05:43:51,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:43:51,804 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 05:43:51,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:43:51,804 INFO L225 Difference]: With dead ends: 69 [2022-12-14 05:43:51,804 INFO L226 Difference]: Without dead ends: 69 [2022-12-14 05:43:51,804 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 05:43:51,805 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 41 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:43:51,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 50 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:43:51,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-12-14 05:43:51,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 47. [2022-12-14 05:43:51,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 30 states have (on average 1.7) 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 05:43:51,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 51 transitions. [2022-12-14 05:43:51,808 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 51 transitions. Word has length 7 [2022-12-14 05:43:51,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:43:51,808 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 51 transitions. [2022-12-14 05:43:51,808 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 05:43:51,808 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2022-12-14 05:43:51,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 05:43:51,809 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:43:51,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:43:51,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:43:51,809 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:43:51,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:43:51,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1829447013, now seen corresponding path program 1 times [2022-12-14 05:43:51,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:43:51,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486558084] [2022-12-14 05:43:51,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:43:51,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:43:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:43:51,861 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 05:43:51,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:43:51,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486558084] [2022-12-14 05:43:51,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486558084] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:43:51,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:43:51,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:43:51,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911350702] [2022-12-14 05:43:51,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:43:51,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:43:51,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:43:51,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:43:51,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:43:51,864 INFO L87 Difference]: Start difference. First operand 47 states and 51 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 05:43:51,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:43:51,887 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2022-12-14 05:43:51,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:43:51,887 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 05:43:51,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:43:51,888 INFO L225 Difference]: With dead ends: 45 [2022-12-14 05:43:51,888 INFO L226 Difference]: Without dead ends: 45 [2022-12-14 05:43:51,888 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 05:43:51,889 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 42 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 31 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 05:43:51,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 31 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:43:51,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-12-14 05:43:51,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-12-14 05:43:51,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 44 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 05:43:51,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2022-12-14 05:43:51,893 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 7 [2022-12-14 05:43:51,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:43:51,893 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2022-12-14 05:43:51,893 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 05:43:51,893 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2022-12-14 05:43:51,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 05:43:51,893 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:43:51,893 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:43:51,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 05:43:51,894 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:43:51,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:43:51,894 INFO L85 PathProgramCache]: Analyzing trace with hash -2078943446, now seen corresponding path program 1 times [2022-12-14 05:43:51,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:43:51,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576397165] [2022-12-14 05:43:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:43:51,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:43:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:43:51,970 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 05:43:51,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:43:51,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576397165] [2022-12-14 05:43:51,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576397165] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:43:51,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672880541] [2022-12-14 05:43:51,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:43:51,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:43:51,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:43:51,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:43:51,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:43:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:43:52,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:43:52,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:43:52,076 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 05:43:52,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:43:52,099 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 05:43:52,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672880541] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:43:52,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [259161362] [2022-12-14 05:43:52,114 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 05:43:52,114 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:43:52,117 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:43:52,121 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:43:52,122 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:43:52,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,182 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 05:43:52,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:43:52,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,223 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 05:43:52,237 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:43:52,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,270 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 05:43:52,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,284 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 05:43:52,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,299 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 05:43:52,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,338 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 05:43:52,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,383 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 05:43:52,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,402 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 05:43:52,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,420 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 05:43:52,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 05:43:52,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,479 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 05:43:52,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,497 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 05:43:52,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,563 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 05:43:52,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:43:52,701 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:43:52,726 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:43:52,727 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 05:43:52,752 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:43:52,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:43:52,773 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 05:43:52,773 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 05:43:52,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:43:52,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:43:52,814 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:43:52,814 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 05:43:52,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,942 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:43:52,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:43:52,950 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 05:43:52,950 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 05:43:52,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:52,965 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:43:52,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:43:52,991 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-12-14 05:43:52,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 442 treesize of output 436 [2022-12-14 05:43:53,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:53,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:53,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:43:53,024 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-12-14 05:43:53,025 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 05:43:53,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:53,167 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-12-14 05:43:53,167 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 05:43:53,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:43:53,307 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 05:43:53,315 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 05:43:53,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:53,339 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 05:43:53,352 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 05:43:53,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:43:53,399 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:43:53,399 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 05:43:53,425 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:43:53,425 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 05:43:53,464 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 05:43:53,471 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 05:43:53,477 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 05:43:53,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:53,501 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 05:43:53,515 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 05:43:53,522 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 05:43:53,593 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:43:53,593 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 05:43:53,603 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 05:43:53,617 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:43:54,296 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '908#(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 05:43:54,297 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:43:54,297 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:43:54,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-14 05:43:54,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170761537] [2022-12-14 05:43:54,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:43:54,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:43:54,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:43:54,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:43:54,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-12-14 05:43:54,299 INFO L87 Difference]: Start difference. First operand 45 states and 49 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 05:43:54,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:43:54,321 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2022-12-14 05:43:54,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:43:54,321 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 05:43:54,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:43:54,322 INFO L225 Difference]: With dead ends: 57 [2022-12-14 05:43:54,322 INFO L226 Difference]: Without dead ends: 57 [2022-12-14 05:43:54,322 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 05:43:54,323 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 6 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:43:54,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 154 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:43:54,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-14 05:43:54,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-12-14 05:43:54,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 56 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:43:54,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2022-12-14 05:43:54,326 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 10 [2022-12-14 05:43:54,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:43:54,326 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2022-12-14 05:43:54,327 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 05:43:54,327 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2022-12-14 05:43:54,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 05:43:54,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:43:54,327 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2022-12-14 05:43:54,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:43:54,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-14 05:43:54,529 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:43:54,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:43:54,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1762763947, now seen corresponding path program 2 times [2022-12-14 05:43:54,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:43:54,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224250561] [2022-12-14 05:43:54,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:43:54,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:43:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:43:55,083 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 05:43:55,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:43:55,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224250561] [2022-12-14 05:43:55,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224250561] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:43:55,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487618308] [2022-12-14 05:43:55,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 05:43:55,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:43:55,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:43:55,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:43:55,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:43:55,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-12-14 05:43:55,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 05:43:55,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-14 05:43:55,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:43:55,416 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 05:43:55,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:55,453 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 05:43:55,467 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:43:55,467 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 05:43:55,510 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:43:55,510 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 05:43:55,517 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 05:43:55,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:43:55,583 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 05:43:55,593 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-12-14 05:43:55,593 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 05:43:55,618 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:43:55,619 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 05:43:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:43:55,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:44:02,746 WARN L233 SmtUtils]: Spent 6.69s on a formula simplification that was a NOOP. DAG size: 40 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 05:44:05,073 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 525 treesize of output 515 [2022-12-14 05:44:05,932 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 05:44:05,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487618308] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:44:05,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1462895571] [2022-12-14 05:44:05,934 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 05:44:05,935 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:44:05,935 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:44:05,935 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:44:05,935 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:44:05,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:05,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:05,950 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 05:44:05,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:05,970 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 05:44:05,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:05,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:06,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,010 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 05:44:06,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,022 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 05:44:06,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,032 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 05:44:06,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,056 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 05:44:06,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,089 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 05:44:06,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,102 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 05:44:06,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,114 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 05:44:06,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,136 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 05:44:06,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,150 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 05:44:06,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,166 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 05:44:06,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,201 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 05:44:06,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:06,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:06,285 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 05:44:06,286 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 367 treesize of output 350 [2022-12-14 05:44:06,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:06,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:06,323 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:06,324 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 363 treesize of output 361 [2022-12-14 05:44:06,336 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:06,337 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:06,360 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:06,360 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 363 treesize of output 361 [2022-12-14 05:44:06,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:06,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:06,477 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-12-14 05:44:06,477 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 427 treesize of output 421 [2022-12-14 05:44:06,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:06,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:06,505 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 05:44:06,505 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 433 treesize of output 386 [2022-12-14 05:44:06,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,522 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:06,538 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-12-14 05:44:06,538 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 447 treesize of output 412 [2022-12-14 05:44:06,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,704 INFO L321 Elim1Store]: treesize reduction 156, result has 13.8 percent of original size [2022-12-14 05:44:06,705 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 421 treesize of output 425 [2022-12-14 05:44:06,802 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 05:44:06,806 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 05:44:06,812 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 05:44:06,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,831 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 05:44:06,842 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 05:44:06,847 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 05:44:06,881 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:44:06,881 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 05:44:06,891 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 05:44:06,922 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 05:44:06,928 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 05:44:06,933 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 05:44:06,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:06,956 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 05:44:06,968 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 05:44:06,975 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 05:44:07,030 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:44:07,031 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 05:44:07,052 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:44:07,052 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 05:44:07,076 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:44:07,692 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1177#(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 05:44:07,692 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:44:07,692 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:44:07,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8] total 19 [2022-12-14 05:44:07,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320879854] [2022-12-14 05:44:07,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:44:07,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-12-14 05:44:07,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:44:07,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-12-14 05:44:07,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2022-12-14 05:44:07,694 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 21 states, 20 states have (on average 3.1) internal successors, (62), 20 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 05:44:07,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:44:07,831 INFO L93 Difference]: Finished difference Result 78 states and 84 transitions. [2022-12-14 05:44:07,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:44:07,832 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.1) internal successors, (62), 20 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 05:44:07,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:44:07,832 INFO L225 Difference]: With dead ends: 78 [2022-12-14 05:44:07,832 INFO L226 Difference]: Without dead ends: 78 [2022-12-14 05:44:07,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=237, Invalid=755, Unknown=0, NotChecked=0, Total=992 [2022-12-14 05:44:07,834 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 284 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:44:07,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 86 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:44:07,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-14 05:44:07,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 56. [2022-12-14 05:44:07,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 55 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:44:07,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2022-12-14 05:44:07,838 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 22 [2022-12-14 05:44:07,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:44:07,839 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2022-12-14 05:44:07,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.1) internal successors, (62), 20 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 05:44:07,839 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2022-12-14 05:44:07,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 05:44:07,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:07,839 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:44:07,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:44:08,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:44:08,041 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:44:08,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:08,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1188889612, now seen corresponding path program 1 times [2022-12-14 05:44:08,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:44:08,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186298916] [2022-12-14 05:44:08,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:08,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:44:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:08,184 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 05:44:08,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:44:08,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186298916] [2022-12-14 05:44:08,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186298916] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:44:08,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:44:08,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:44:08,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117709043] [2022-12-14 05:44:08,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:44:08,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:44:08,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:44:08,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:44:08,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:44:08,186 INFO L87 Difference]: Start difference. First operand 56 states and 60 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 05:44:08,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:44:08,255 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2022-12-14 05:44:08,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:44:08,255 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 05:44:08,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:44:08,256 INFO L225 Difference]: With dead ends: 81 [2022-12-14 05:44:08,256 INFO L226 Difference]: Without dead ends: 81 [2022-12-14 05:44:08,256 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 05:44:08,257 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 108 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:44:08,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 57 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:44:08,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-12-14 05:44:08,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 57. [2022-12-14 05:44:08,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 43 states have (on average 1.441860465116279) internal successors, (62), 56 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:44:08,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2022-12-14 05:44:08,261 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 23 [2022-12-14 05:44:08,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:44:08,261 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2022-12-14 05:44:08,261 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 05:44:08,261 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2022-12-14 05:44:08,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 05:44:08,262 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:08,262 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:44:08,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 05:44:08,262 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:44:08,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:08,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1188889611, now seen corresponding path program 1 times [2022-12-14 05:44:08,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:44:08,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284462430] [2022-12-14 05:44:08,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:08,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:44:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:08,456 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 05:44:08,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:44:08,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284462430] [2022-12-14 05:44:08,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284462430] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:44:08,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:44:08,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:44:08,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790381180] [2022-12-14 05:44:08,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:44:08,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:44:08,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:44:08,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:44:08,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:44:08,458 INFO L87 Difference]: Start difference. First operand 57 states and 62 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 05:44:08,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:44:08,531 INFO L93 Difference]: Finished difference Result 62 states and 66 transitions. [2022-12-14 05:44:08,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:44:08,532 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 05:44:08,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:44:08,532 INFO L225 Difference]: With dead ends: 62 [2022-12-14 05:44:08,532 INFO L226 Difference]: Without dead ends: 62 [2022-12-14 05:44:08,532 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 05:44:08,533 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 97 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:44:08,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 46 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:44:08,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-14 05:44:08,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 60. [2022-12-14 05:44:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 46 states have (on average 1.4130434782608696) internal successors, (65), 59 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:44:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2022-12-14 05:44:08,537 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 23 [2022-12-14 05:44:08,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:44:08,537 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2022-12-14 05:44:08,537 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 05:44:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2022-12-14 05:44:08,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 05:44:08,538 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:08,538 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:44:08,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 05:44:08,538 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:44:08,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:08,539 INFO L85 PathProgramCache]: Analyzing trace with hash -61615309, now seen corresponding path program 1 times [2022-12-14 05:44:08,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:44:08,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475829474] [2022-12-14 05:44:08,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:08,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:44:08,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:09,062 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 05:44:09,062 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:44:09,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475829474] [2022-12-14 05:44:09,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475829474] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:44:09,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417270597] [2022-12-14 05:44:09,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:09,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:44:09,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:44:09,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:44:09,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:44:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:09,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-14 05:44:09,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:44:09,219 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 05:44:09,249 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 05:44:09,267 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 05:44:09,278 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 05:44:09,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:44:09,395 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 05:44:09,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417270597] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:44:09,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1299649687] [2022-12-14 05:44:09,398 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2022-12-14 05:44:09,398 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:44:09,398 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:44:09,398 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:44:09,398 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:44:09,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 05:44:09,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:09,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:09,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,442 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 05:44:09,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,456 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 05:44:09,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,463 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 05:44:09,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,471 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 05:44:09,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,492 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 05:44:09,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,516 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 05:44:09,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,529 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 05:44:09,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,540 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 05:44:09,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,561 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 05:44:09,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,574 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 05:44:09,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 05:44:09,680 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 05:44:09,681 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 327 treesize of output 332 [2022-12-14 05:44:09,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:09,837 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:09,837 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 332 treesize of output 330 [2022-12-14 05:44:09,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:09,867 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 05:44:09,868 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 336 treesize of output 319 [2022-12-14 05:44:09,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:09,894 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:09,895 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 332 treesize of output 330 [2022-12-14 05:44:09,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:09,982 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 05:44:09,983 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 390 treesize of output 343 [2022-12-14 05:44:09,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:09,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:10,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:10,020 INFO L321 Elim1Store]: treesize reduction 58, result has 26.6 percent of original size [2022-12-14 05:44:10,020 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 384 treesize of output 378 [2022-12-14 05:44:10,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:10,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:10,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:10,046 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 05:44:10,046 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 404 treesize of output 378 [2022-12-14 05:44:10,123 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 05:44:10,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 05:44:10,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:44:10,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 05:44:10,152 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 05:44:10,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:10,167 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 05:44:10,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:10,181 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:10,195 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 05:44:10,201 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 05:44:10,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:10,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:10,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:10,251 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 15 treesize of output 1 [2022-12-14 05:44:10,259 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 05:44:10,267 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 05:44:10,289 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:44:11,396 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1767#(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 05:44:11,396 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:44:11,396 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:44:11,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 17 [2022-12-14 05:44:11,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960735289] [2022-12-14 05:44:11,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:44:11,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-14 05:44:11,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:44:11,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-14 05:44:11,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2022-12-14 05:44:11,398 INFO L87 Difference]: Start difference. First operand 60 states and 65 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 05:44:11,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:44:11,748 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2022-12-14 05:44:11,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 05:44:11,749 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 05:44:11,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:44:11,749 INFO L225 Difference]: With dead ends: 82 [2022-12-14 05:44:11,749 INFO L226 Difference]: Without dead ends: 82 [2022-12-14 05:44:11,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=234, Invalid=956, Unknown=0, NotChecked=0, Total=1190 [2022-12-14 05:44:11,750 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 291 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:44:11,750 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 154 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:44:11,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-12-14 05:44:11,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 60. [2022-12-14 05:44:11,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 46 states have (on average 1.391304347826087) internal successors, (64), 59 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 05:44:11,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2022-12-14 05:44:11,752 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 25 [2022-12-14 05:44:11,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:44:11,752 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2022-12-14 05:44:11,752 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 05:44:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2022-12-14 05:44:11,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 05:44:11,753 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:11,753 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:44:11,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:44:11,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:44:11,954 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:44:11,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:11,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1630466329, now seen corresponding path program 1 times [2022-12-14 05:44:11,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:44:11,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752679674] [2022-12-14 05:44:11,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:11,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:44:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:12,492 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 05:44:12,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:44:12,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752679674] [2022-12-14 05:44:12,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752679674] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:44:12,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590238661] [2022-12-14 05:44:12,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:12,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:44:12,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:44:12,493 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:44:12,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:44:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:12,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 60 conjunts are in the unsatisfiable core [2022-12-14 05:44:12,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:44:12,629 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 05:44:12,677 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:44:12,677 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 05:44:12,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:44:12,714 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 05:44:12,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:12,736 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 05:44:12,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:12,741 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 05:44:12,782 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 05:44:12,783 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 05:44:12,793 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:44:12,793 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 05:44:12,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:12,945 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:44:12,945 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 05:44:12,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:12,952 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:44:12,953 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 05:44:12,979 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:44:12,979 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 05:44:12,986 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:44:12,987 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 05:44:13,030 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 05:44:13,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:44:13,469 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 05:44:13,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590238661] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:44:13,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [56496379] [2022-12-14 05:44:13,470 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 05:44:13,470 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:44:13,471 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:44:13,471 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:44:13,471 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:44:13,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,482 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 05:44:13,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:44:13,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:13,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,510 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 05:44:13,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,532 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 05:44:13,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,540 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 05:44:13,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,552 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 05:44:13,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 05:44:13,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,601 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 05:44:13,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,613 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 05:44:13,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,626 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 05:44:13,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,649 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 05:44:13,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,662 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 05:44:13,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:13,675 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 05:44:13,796 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 05:44:13,796 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 05:44:13,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:13,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:13,995 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:13,996 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 05:44:14,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:14,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:14,034 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:14,034 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 05:44:14,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,054 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:14,067 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 05:44:14,068 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 05:44:14,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:14,148 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:14,155 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 05:44:14,156 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 05:44:14,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:14,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:14,198 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-12-14 05:44:14,199 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 05:44:14,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:14,232 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-12-14 05:44:14,233 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 05:44:14,299 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 05:44:14,306 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 05:44:14,316 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:14,321 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:14,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:14,340 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:14,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:44:14,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,353 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 05:44:14,369 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 05:44:14,374 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 05:44:14,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:14,395 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:14,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:14,421 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 05:44:14,434 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 05:44:14,442 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 05:44:14,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,476 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 05:44:14,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:14,488 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 05:44:14,497 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 05:44:14,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:14,589 INFO L321 Elim1Store]: treesize reduction 48, result has 47.3 percent of original size [2022-12-14 05:44:14,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 49 [2022-12-14 05:44:14,616 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-12-14 05:44:14,617 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 05:44:14,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:14,673 INFO L321 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-12-14 05:44:14,673 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 05:44:14,683 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-12-14 05:44:14,688 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-12-14 05:44:14,852 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 05:44:14,861 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 05:44:14,868 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 05:44:14,929 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 05:44:14,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:44:14,941 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 05:44:14,945 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:44:15,942 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2121#(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 05:44:15,942 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:44:15,942 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:44:15,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2022-12-14 05:44:15,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778268328] [2022-12-14 05:44:15,943 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:44:15,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 05:44:15,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:44:15,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 05:44:15,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1120, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 05:44:15,944 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand has 25 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 25 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 05:44:16,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:44:16,816 INFO L93 Difference]: Finished difference Result 141 states and 154 transitions. [2022-12-14 05:44:16,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-12-14 05:44:16,817 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 25 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 28 [2022-12-14 05:44:16,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:44:16,819 INFO L225 Difference]: With dead ends: 141 [2022-12-14 05:44:16,819 INFO L226 Difference]: Without dead ends: 141 [2022-12-14 05:44:16,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=413, Invalid=2037, Unknown=0, NotChecked=0, Total=2450 [2022-12-14 05:44:16,820 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 954 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:44:16,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 190 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 05:44:16,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-14 05:44:16,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 68. [2022-12-14 05:44:16,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 67 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:44:16,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2022-12-14 05:44:16,823 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 28 [2022-12-14 05:44:16,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:44:16,823 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2022-12-14 05:44:16,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.5833333333333335) internal successors, (62), 25 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 05:44:16,823 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2022-12-14 05:44:16,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 05:44:16,823 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:16,823 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:44:16,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 05:44:17,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:44:17,024 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:44:17,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:17,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1630466328, now seen corresponding path program 1 times [2022-12-14 05:44:17,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:44:17,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973197757] [2022-12-14 05:44:17,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:17,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:44:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:17,730 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 05:44:17,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:44:17,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973197757] [2022-12-14 05:44:17,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973197757] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:44:17,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195610203] [2022-12-14 05:44:17,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:17,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:44:17,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:44:17,731 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:44:17,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 05:44:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:17,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 60 conjunts are in the unsatisfiable core [2022-12-14 05:44:17,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:44:17,847 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 05:44:17,905 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:44:17,905 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 05:44:17,944 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 05:44:17,950 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 05:44:17,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:17,990 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 05:44:18,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:18,002 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 05:44:18,055 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:18,064 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 05:44:18,064 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 05:44:18,070 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:18,076 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:44:18,076 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 05:44:18,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:18,352 INFO L321 Elim1Store]: treesize reduction 64, result has 32.6 percent of original size [2022-12-14 05:44:18,352 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 05:44:18,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:18,389 INFO L321 Elim1Store]: treesize reduction 64, result has 32.6 percent of original size [2022-12-14 05:44:18,390 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 05:44:18,520 INFO L321 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2022-12-14 05:44:18,520 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 05:44:18,542 INFO L321 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2022-12-14 05:44:18,543 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 05:44:18,621 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 05:44:18,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:44:20,706 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 05:44:20,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195610203] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:44:20,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1681279025] [2022-12-14 05:44:20,707 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 05:44:20,707 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:44:20,707 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:44:20,707 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:44:20,707 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:44:20,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,719 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 05:44:20,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,736 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 05:44:20,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:20,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:20,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,768 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 05:44:20,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,777 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 05:44:20,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,785 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 05:44:20,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,811 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 05:44:20,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,835 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 05:44:20,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,847 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 05:44:20,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,859 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 05:44:20,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,882 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 05:44:20,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,895 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 05:44:20,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:20,909 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 05:44:21,008 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 05:44:21,009 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 327 treesize of output 332 [2022-12-14 05:44:21,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:21,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:21,162 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 05:44:21,163 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 336 treesize of output 319 [2022-12-14 05:44:21,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:21,189 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:21,190 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 332 treesize of output 330 [2022-12-14 05:44:21,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:21,216 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:21,217 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 332 treesize of output 330 [2022-12-14 05:44:21,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:21,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:21,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:21,297 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 05:44:21,297 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 390 treesize of output 343 [2022-12-14 05:44:21,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:21,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:21,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:21,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:21,331 INFO L321 Elim1Store]: treesize reduction 58, result has 26.6 percent of original size [2022-12-14 05:44:21,331 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 384 treesize of output 378 [2022-12-14 05:44:21,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:21,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:21,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:21,348 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 05:44:21,348 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 404 treesize of output 378 [2022-12-14 05:44:21,401 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 05:44:21,407 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 05:44:21,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:21,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:21,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:21,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:21,435 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 05:44:21,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:44:21,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:21,460 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 05:44:21,465 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 05:44:21,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:21,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:21,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:21,503 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 05:44:21,512 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 05:44:21,520 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 05:44:21,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:21,555 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 05:44:21,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:21,569 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 05:44:21,580 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 05:44:21,636 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-12-14 05:44:21,637 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 05:44:21,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:21,692 INFO L321 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-12-14 05:44:21,692 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 05:44:21,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:21,746 INFO L321 Elim1Store]: treesize reduction 52, result has 42.9 percent of original size [2022-12-14 05:44:21,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 45 [2022-12-14 05:44:21,754 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-14 05:44:21,755 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-14 05:44:21,823 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 05:44:21,832 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 05:44:21,840 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 05:44:21,912 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 05:44:21,921 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 05:44:21,927 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 05:44:21,931 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:44:23,341 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2559#(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 05:44:23,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:44:23,341 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:44:23,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 26 [2022-12-14 05:44:23,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731356412] [2022-12-14 05:44:23,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:44:23,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-12-14 05:44:23,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:44:23,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-12-14 05:44:23,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1327, Unknown=0, NotChecked=0, Total=1482 [2022-12-14 05:44:23,343 INFO L87 Difference]: Start difference. First operand 68 states and 78 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 05:44:25,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:44:25,583 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2022-12-14 05:44:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-12-14 05:44:25,584 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 05:44:25,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:44:25,584 INFO L225 Difference]: With dead ends: 115 [2022-12-14 05:44:25,584 INFO L226 Difference]: Without dead ends: 115 [2022-12-14 05:44:25,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 52 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=580, Invalid=2726, Unknown=0, NotChecked=0, Total=3306 [2022-12-14 05:44:25,585 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1327 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:44:25,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 110 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 05:44:25,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-12-14 05:44:25,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 70. [2022-12-14 05:44:25,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.368421052631579) internal successors, (78), 69 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:44:25,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2022-12-14 05:44:25,587 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 28 [2022-12-14 05:44:25,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:44:25,587 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2022-12-14 05:44:25,587 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 05:44:25,587 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2022-12-14 05:44:25,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 05:44:25,588 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:25,588 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 05:44:25,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 05:44:25,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 05:44:25,790 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:44:25,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:25,791 INFO L85 PathProgramCache]: Analyzing trace with hash 784921958, now seen corresponding path program 1 times [2022-12-14 05:44:25,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:44:25,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460887400] [2022-12-14 05:44:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:25,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:44:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:27,100 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 05:44:27,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:44:27,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460887400] [2022-12-14 05:44:27,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460887400] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:44:27,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151756392] [2022-12-14 05:44:27,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:27,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:44:27,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:44:27,101 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:44:27,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 05:44:27,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:27,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 73 conjunts are in the unsatisfiable core [2022-12-14 05:44:27,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:44:27,304 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 05:44:27,353 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 11 treesize of output 7 [2022-12-14 05:44:27,360 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 05:44:27,360 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 05:44:27,364 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 05:44:27,370 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 05:44:27,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:27,413 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 05:44:27,425 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 05:44:27,425 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 05:44:27,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:27,435 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 05:44:27,484 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 05:44:27,495 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 05:44:27,495 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 05:44:27,504 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:44:27,504 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 05:44:27,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:27,623 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:44:27,623 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 40 treesize of output 38 [2022-12-14 05:44:27,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:27,630 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:44:27,630 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 28 treesize of output 30 [2022-12-14 05:44:27,642 INFO L321 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size [2022-12-14 05:44:27,642 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 05:44:27,646 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 05:44:27,695 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:44:27,695 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 22 treesize of output 10 [2022-12-14 05:44:27,703 INFO L321 Elim1Store]: treesize reduction 8, result has 60.0 percent of original size [2022-12-14 05:44:27,703 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 29 [2022-12-14 05:44:27,758 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 05:44:27,776 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 05:44:27,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:44:29,220 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ 4 |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|)) (.cse2 (+ |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 4))) (let ((.cse4 (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse55 (select (store (let ((.cse56 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|))) (or (= (select .cse55 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse55 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse2) |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 (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (= (select (select (store (let ((.cse54 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (store .cse54 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse54 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))))))) (.cse11 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse53 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse6 (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_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse52 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse2) |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|)))) (.cse8 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (let ((.cse50 (select (store (let ((.cse51 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse50 .cse2) |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|)))) (.cse10 (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_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (= (select (select (store (let ((.cse49 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |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|)))))) (.cse7 (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|))) (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 ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse1 (select (store (let ((.cse3 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|))) (or (= (select .cse1 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse1 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))))))) (or (and .cse4 .cse5 .cse6) .cse7) .cse8 .cse4 (or .cse7 (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (= (select (select (store (let ((.cse9 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))) .cse10 .cse5 .cse11 (or (and (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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_1125))) (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 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse12 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= (select v_ArrVal_1135 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse14 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (store .cse14 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse14 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse2) |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|))) .cse8 .cse4 .cse10 (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_1131 Int) (v_ArrVal_1125 (Array Int 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_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))) .cse5 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= (select v_ArrVal_1135 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse16 (select (store (let ((.cse17 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse16 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse11 (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (= (select (select (store (let ((.cse18 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse2) |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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse19 (select (store (let ((.cse20 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse19 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse6) .cse7) (or (and .cse8 .cse10) .cse7) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (= (select (select (store (let ((.cse21 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse7) (or (let ((.cse22 (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_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse48 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse28 (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_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse47 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse2) |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|)))) (.cse23 (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse45 (select (store (let ((.cse46 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse45 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse24 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int))) (= (select (select (store (let ((.cse44 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse25 (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_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (let ((.cse42 (select (store (let ((.cse43 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|))) (or (= (select .cse42 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse42 .cse2) |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 (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (= (select (select (store (let ((.cse41 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (store .cse41 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse41 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse2) |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|))))) (and (or (and .cse22 .cse23 .cse24) .cse7) .cse25 (or (and .cse25 (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse26 (select (store (let ((.cse27 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse26 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse28 (forall ((v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= (select v_ArrVal_1135 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse29 (select (store (let ((.cse30 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|))) (or (= (select .cse29 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse29 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse22 (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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 ((.cse31 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (store .cse31 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse31 |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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)) (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse32 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse23 .cse24 (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (= (select (select (store (let ((.cse33 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse34 (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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 ((.cse35 (select (store (let ((.cse36 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|))) (or (= (select .cse35 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse35 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse7) .cse28 .cse23 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|) (forall ((v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse37 (select (store (let ((.cse38 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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 .cse0) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse37 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse24 (or (and .cse25 .cse34) .cse7) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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 ((.cse39 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse7) .cse34 (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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 .cse0) |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 ((.cse40 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse2) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse2) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse7))) (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| |c_ULTIMATE.start_sll_circular_create_~new_head~0#1.offset|))))) is different from false [2022-12-14 05:44:30,631 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (+ |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 4))) (let ((.cse0 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse55 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|)))) (.cse1 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (= (select (select (store (let ((.cse54 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (store .cse54 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse54 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |ULTIMATE.start_sll_circular_create_~last~0#1.base|)))))) (.cse2 (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (= (select (select (store (let ((.cse53 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))))))) (.cse44 (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_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse52 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse5) |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|)))) (.cse3 (= |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| 0)) (.cse34 (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_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (let ((.cse50 (select (store (let ((.cse51 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse50 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))))))))) (.cse45 (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse48 (select (store (let ((.cse49 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|))) (or (= (select .cse48 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse48 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))))))))) (and .cse0 .cse1 .cse2 (or (= |c_ULTIMATE.start_sll_circular_create_~head~0#1.offset| 0) (let ((.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_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (or (= (select (select (store (let ((.cse31 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (store .cse31 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse31 |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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse6 (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse29 (select (store (let ((.cse30 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|))) (or (= (select .cse29 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse29 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse5) |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_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (let ((.cse27 (select (store (let ((.cse28 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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 .cse5) |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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (= (select (select (store (let ((.cse26 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))))) (.cse20 (forall ((|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int) (|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int))) (or (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse25 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse5) |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|)))) (.cse8 (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_1131 Int) (v_ArrVal_1125 (Array Int 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_1125))) (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|) .cse5) |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|))))) (and (or .cse3 (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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 ((.cse4 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (store .cse4 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse4 |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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))) .cse6 (or (and .cse7 .cse8) .cse3) (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse9 (select (store (let ((.cse10 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (store .cse10 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse10 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_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 .cse9 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse9 .cse5) |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 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse7 (or (and .cse11 .cse6 .cse12) .cse3) .cse12 (or (and (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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 ((.cse13 (select (store (let ((.cse14 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (store .cse14 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse14 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_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 .cse13 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse13 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))) (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse15 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse11 (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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 ((.cse16 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse5) |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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse17 (select (store (let ((.cse18 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|))) (or (= (select .cse17 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse17 .cse5) |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 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse6 .cse7 .cse12 (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (= (select (select (store (let ((.cse19 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse20 .cse8 (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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse21 (select (store (let ((.cse22 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse21 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))) .cse3) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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 v_ArrVal_1135 4) |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_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse3) .cse20 .cse8))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((|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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse32 (select (store (let ((.cse33 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|))) (or (= (select .cse32 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse32 .cse5) |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 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))))))) (or (and .cse1 .cse34) .cse3) (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_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (let ((.cse35 (select (store (let ((.cse36 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|))) (or (= (select .cse35 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse35 .cse5) |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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse37 (select (store (let ((.cse38 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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 .cse5) |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 .cse5) |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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (let ((.cse39 (select (store (let ((.cse40 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|))) (or (= (select .cse39 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select .cse39 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))))) (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int Int)) (v_ArrVal_1135 (Array Int Int)) (|ULTIMATE.start_sll_circular_create_~last~0#1.base| Int)) (or (= (select v_ArrVal_1135 4) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select (select (store (let ((.cse41 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (store .cse41 |ULTIMATE.start_sll_circular_create_~last~0#1.base| (store (select .cse41 |ULTIMATE.start_sll_circular_create_~last~0#1.base|) |c_ULTIMATE.start_sll_circular_create_~last~0#1.offset| v_ArrVal_1131))) |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1135) |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|))) .cse1 (forall ((|ULTIMATE.start_sll_circular_create_~new_head~0#1.base| Int)) (or (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))) .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_1131 Int) (v_ArrVal_1125 (Array Int Int))) (= (select (select (store (let ((.cse43 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))))) .cse44 .cse34 .cse45) .cse3) (or (and .cse2 .cse44 .cse45) .cse3) (or .cse3 (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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|) (= |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| |c_ULTIMATE.start_sll_circular_create_~head~0#1.base|) (= (select (select (store (let ((.cse46 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|)))) (or (forall ((v_ArrVal_1131 Int) (v_ArrVal_1125 (Array Int 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|) (= |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 (select (store (let ((.cse47 (store |c_#memory_int| |ULTIMATE.start_sll_circular_create_~new_head~0#1.base| v_ArrVal_1125))) (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|) .cse5) |c_ULTIMATE.start_main_~data_init~0#1|) (= (select v_ArrVal_1135 .cse5) |c_ULTIMATE.start_main_~data_init~0#1|))) .cse3) .cse34 .cse45))) is different from false [2022-12-14 05:44:31,057 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:44:31,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 37 [2022-12-14 05:44:31,060 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:31,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:31,066 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:44:31,066 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 05:44:31,071 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:44:31,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 15 [2022-12-14 05:44:31,087 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 05:44:31,095 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,096 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,102 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,102 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,107 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,108 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,113 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 05:44:31,121 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,121 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,126 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 05:44:31,132 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 05:44:31,138 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,138 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,148 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,148 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,153 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,154 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,159 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,159 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,165 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 1 [2022-12-14 05:44:31,170 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,170 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,175 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,175 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,181 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,181 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,186 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,186 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,191 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,192 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,197 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 1 [2022-12-14 05:44:31,202 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,202 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,207 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,208 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,214 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,215 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,225 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:44:31,225 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 46 treesize of output 37 [2022-12-14 05:44:31,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:31,234 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 05:44:31,234 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 296 treesize of output 285 [2022-12-14 05:44:31,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:31,241 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 262 treesize of output 246 [2022-12-14 05:44:31,246 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 246 treesize of output 214 [2022-12-14 05:44:31,252 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 116 treesize of output 104 [2022-12-14 05:44:31,259 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 106 treesize of output 98 [2022-12-14 05:44:31,293 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:44:31,293 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 46 treesize of output 37 [2022-12-14 05:44:31,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:31,302 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 05:44:31,302 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 1184 treesize of output 1137 [2022-12-14 05:44:31,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:31,314 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 1078 treesize of output 1014 [2022-12-14 05:44:31,323 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 1021 treesize of output 889 [2022-12-14 05:44:31,332 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 894 treesize of output 858 [2022-12-14 05:44:31,345 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 854 treesize of output 822 [2022-12-14 05:44:31,450 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,450 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,456 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,456 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,462 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-12-14 05:44:31,463 INFO L350 Elim1Store]: Elim1 eliminated variable 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 05:44:31,555 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 05:44:31,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151756392] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:44:31,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1341737923] [2022-12-14 05:44:31,560 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-12-14 05:44:31,560 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:44:31,560 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:44:31,560 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:44:31,560 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:44:31,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,575 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 05:44:31,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:31,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:31,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,605 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 05:44:31,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,620 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 05:44:31,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,627 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 05:44:31,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,632 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 05:44:31,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,655 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 05:44:31,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,677 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 05:44:31,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,689 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 05:44:31,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,700 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 05:44:31,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,727 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 05:44:31,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,737 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 05:44:31,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,745 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 05:44:31,827 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 05:44:31,828 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 05:44:31,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:31,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:31,981 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 05:44:31,981 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 05:44:31,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:31,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:32,009 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:32,010 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 05:44:32,024 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:32,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:32,039 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:32,040 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 05:44:32,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:32,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:32,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:32,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:32,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:32,128 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 05:44:32,128 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 05:44:32,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:32,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:32,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:32,155 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-12-14 05:44:32,155 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 05:44:32,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:32,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:32,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:32,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:32,186 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-12-14 05:44:32,186 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 05:44:32,236 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 05:44:32,241 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 05:44:32,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 05:44:32,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:32,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:32,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:32,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:32,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:32,281 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 05:44:32,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:44:32,299 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 05:44:32,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:32,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:32,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:32,347 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 05:44:32,352 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 05:44:32,358 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 05:44:32,391 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 05:44:32,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:32,400 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 05:44:32,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:32,407 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 05:44:32,458 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:32,490 INFO L321 Elim1Store]: treesize reduction 48, result has 47.3 percent of original size [2022-12-14 05:44:32,490 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 05:44:32,504 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:32,528 INFO L321 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-12-14 05:44:32,528 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 05:44:32,549 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-12-14 05:44:32,549 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 05:44:32,555 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-12-14 05:44:32,557 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2022-12-14 05:44:32,701 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 05:44:32,707 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 05:44:32,713 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 05:44:32,777 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 05:44:32,782 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 05:44:32,789 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 05:44:32,790 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:44:34,137 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3004#(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 05:44:34,137 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:44:34,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:44:34,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 12] total 34 [2022-12-14 05:44:34,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625129193] [2022-12-14 05:44:34,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:44:34,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-12-14 05:44:34,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:44:34,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-12-14 05:44:34,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1785, Unknown=18, NotChecked=174, Total=2162 [2022-12-14 05:44:34,139 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand has 35 states, 35 states have (on average 2.1142857142857143) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:44:38,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:44:38,692 INFO L93 Difference]: Finished difference Result 205 states and 222 transitions. [2022-12-14 05:44:38,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-14 05:44:38,692 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.1142857142857143) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-12-14 05:44:38,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:44:38,693 INFO L225 Difference]: With dead ends: 205 [2022-12-14 05:44:38,693 INFO L226 Difference]: Without dead ends: 205 [2022-12-14 05:44:38,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 65 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1196 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=767, Invalid=4192, Unknown=19, NotChecked=278, Total=5256 [2022-12-14 05:44:38,694 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1143 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 313 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:44:38,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 250 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 770 Invalid, 0 Unknown, 313 Unchecked, 0.8s Time] [2022-12-14 05:44:38,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-12-14 05:44:38,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 70. [2022-12-14 05:44:38,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 57 states have (on average 1.3508771929824561) internal successors, (77), 69 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:44:38,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2022-12-14 05:44:38,696 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 30 [2022-12-14 05:44:38,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:44:38,696 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2022-12-14 05:44:38,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.1142857142857143) internal successors, (74), 34 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:44:38,697 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2022-12-14 05:44:38,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 05:44:38,697 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:38,697 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 05:44:38,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-12-14 05:44:38,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 05:44:38,898 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:44:38,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:38,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1438334023, now seen corresponding path program 1 times [2022-12-14 05:44:38,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:44:38,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380148141] [2022-12-14 05:44:38,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:38,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:44:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:39,206 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 05:44:39,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:44:39,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380148141] [2022-12-14 05:44:39,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380148141] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:44:39,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196978888] [2022-12-14 05:44:39,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:39,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:44:39,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:44:39,208 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:44:39,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 05:44:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:39,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 52 conjunts are in the unsatisfiable core [2022-12-14 05:44:39,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:44:39,334 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 05:44:39,364 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:44:39,364 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 05:44:39,382 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 05:44:39,382 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 05:44:39,409 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 05:44:39,410 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 05:44:39,458 INFO L321 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-12-14 05:44:39,458 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 05:44:39,485 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 05:44:39,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,516 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 05:44:39,542 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 05:44:39,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,575 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:44:39,576 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 05:44:39,584 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 05:44:39,585 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 05:44:39,586 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 05:44:39,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:44:39,778 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 05:44:39,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196978888] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:44:39,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1289657465] [2022-12-14 05:44:39,780 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-12-14 05:44:39,780 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:44:39,780 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:44:39,780 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:44:39,780 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:44:39,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,793 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 05:44:39,807 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:39,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,814 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 05:44:39,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:44:39,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,839 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 05:44:39,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,844 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 05:44:39,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,851 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 05:44:39,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,871 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 05:44:39,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,895 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 05:44:39,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,904 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 05:44:39,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,916 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 05:44:39,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,939 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 05:44:39,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,948 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 05:44:39,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:39,958 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 05:44:40,059 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 05:44:40,060 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 05:44:40,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:40,198 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 05:44:40,199 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 05:44:40,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:40,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:40,224 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:40,225 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 05:44:40,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:40,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:40,251 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:40,251 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 05:44:40,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:40,327 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:40,331 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 05:44:40,331 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 05:44:40,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:40,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:40,369 INFO L321 Elim1Store]: treesize reduction 64, result has 29.7 percent of original size [2022-12-14 05:44:40,369 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 05:44:40,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,388 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:40,404 INFO L321 Elim1Store]: treesize reduction 87, result has 11.2 percent of original size [2022-12-14 05:44:40,405 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 05:44:40,451 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 05:44:40,456 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 05:44:40,464 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:44:40,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:40,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 05:44:40,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,481 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 05:44:40,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:44:40,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:40,501 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 05:44:40,505 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 05:44:40,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:40,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:40,524 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 11 treesize of output 7 [2022-12-14 05:44:40,543 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 05:44:40,546 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 05:44:40,552 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 05:44:40,581 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 05:44:40,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,592 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 27 treesize of output 11 [2022-12-14 05:44:40,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:40,601 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 05:44:40,649 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:44:42,499 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3549#(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 05:44:42,499 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:44:42,499 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:44:42,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 24 [2022-12-14 05:44:42,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091385336] [2022-12-14 05:44:42,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:44:42,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-14 05:44:42,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:44:42,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-14 05:44:42,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1216, Unknown=0, NotChecked=0, Total=1406 [2022-12-14 05:44:42,500 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 25 states, 25 states have (on average 2.68) internal successors, (67), 24 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 05:44:42,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:44:42,796 INFO L93 Difference]: Finished difference Result 86 states and 92 transitions. [2022-12-14 05:44:42,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 05:44:42,797 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.68) internal successors, (67), 24 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) Word has length 31 [2022-12-14 05:44:42,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:44:42,797 INFO L225 Difference]: With dead ends: 86 [2022-12-14 05:44:42,797 INFO L226 Difference]: Without dead ends: 86 [2022-12-14 05:44:42,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 66 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 630 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=370, Invalid=1792, Unknown=0, NotChecked=0, Total=2162 [2022-12-14 05:44:42,798 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 246 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:44:42,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 282 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:44:42,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-12-14 05:44:42,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 64. [2022-12-14 05:44:42,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 63 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 05:44:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2022-12-14 05:44:42,800 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 31 [2022-12-14 05:44:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:44:42,800 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2022-12-14 05:44:42,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.68) internal successors, (67), 24 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 05:44:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2022-12-14 05:44:42,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 05:44:42,801 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:42,801 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:44:42,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-14 05:44:43,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 05:44:43,003 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:44:43,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:43,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1808260052, now seen corresponding path program 2 times [2022-12-14 05:44:43,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:44:43,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016588446] [2022-12-14 05:44:43,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:43,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:44:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:44,180 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 05:44:44,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:44:44,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016588446] [2022-12-14 05:44:44,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016588446] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:44:44,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451622608] [2022-12-14 05:44:44,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 05:44:44,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:44:44,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:44:44,181 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:44:44,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 05:44:44,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 05:44:44,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 05:44:44,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 81 conjunts are in the unsatisfiable core [2022-12-14 05:44:44,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:44:44,663 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:44:44,664 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 05:44:44,699 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 05:44:44,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 05:44:44,771 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 05:44:44,798 INFO L321 Elim1Store]: treesize reduction 40, result has 40.3 percent of original size [2022-12-14 05:44:44,798 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 3 case distinctions, treesize of input 21 treesize of output 38 [2022-12-14 05:44:44,875 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:44,884 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 05:44:44,885 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 05:44:44,889 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 05:44:44,967 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 45 treesize of output 36 [2022-12-14 05:44:44,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:44,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:44,975 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:44:44,975 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 40 treesize of output 41 [2022-12-14 05:44:45,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:45,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:45,087 INFO L321 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-12-14 05:44:45,087 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 38 treesize of output 55 [2022-12-14 05:44:45,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:45,100 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:44:45,100 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 05:44:45,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:45,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:45,319 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:44:45,319 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 52 treesize of output 46 [2022-12-14 05:44:45,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:45,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:45,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:45,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:45,329 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 05:44:45,329 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 47 treesize of output 51 [2022-12-14 05:44:45,362 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:45,364 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:44:45,364 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 46 treesize of output 26 [2022-12-14 05:44:45,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:45,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:45,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:45,553 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:45,555 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 05:44:45,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 64 [2022-12-14 05:44:45,561 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 17 treesize of output 9 [2022-12-14 05:44:45,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:45,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:45,630 INFO L321 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2022-12-14 05:44:45,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 41 [2022-12-14 05:44:45,683 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 24 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:44:45,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:44:57,146 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 138 treesize of output 98 [2022-12-14 05:44:58,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:58,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:58,685 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 05:44:58,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451622608] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:44:58,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1466049000] [2022-12-14 05:44:58,687 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2022-12-14 05:44:58,687 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:44:58,687 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:44:58,687 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:44:58,687 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:44:58,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,699 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 05:44:58,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:58,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,723 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 05:44:58,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:44:58,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,744 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 05:44:58,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,751 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 05:44:58,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,756 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 05:44:58,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,774 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 05:44:58,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,795 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 05:44:58,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,805 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 05:44:58,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,814 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 05:44:58,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,831 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 05:44:58,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,841 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 05:44:58,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:58,852 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 05:44:58,928 INFO L321 Elim1Store]: treesize reduction 92, result has 21.4 percent of original size [2022-12-14 05:44:58,928 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 327 treesize of output 332 [2022-12-14 05:44:59,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:59,108 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:59,109 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 332 treesize of output 330 [2022-12-14 05:44:59,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:59,126 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:59,141 INFO L321 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2022-12-14 05:44:59,141 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 336 treesize of output 319 [2022-12-14 05:44:59,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:59,177 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-12-14 05:44:59,178 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 332 treesize of output 330 [2022-12-14 05:44:59,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:59,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:59,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:59,259 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-12-14 05:44:59,259 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 390 treesize of output 343 [2022-12-14 05:44:59,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:59,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:59,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:59,280 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 05:44:59,281 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 404 treesize of output 378 [2022-12-14 05:44:59,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:59,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:59,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:59,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:59,323 INFO L321 Elim1Store]: treesize reduction 58, result has 26.6 percent of original size [2022-12-14 05:44:59,324 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 384 treesize of output 378 [2022-12-14 05:44:59,382 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 05:44:59,386 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 05:44:59,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:59,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:59,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:59,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:44:59,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:59,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:59,430 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 05:44:59,445 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 05:44:59,451 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 05:44:59,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:59,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select 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 05:44:59,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:44:59,500 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 05:44:59,507 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 05:44:59,513 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 05:44:59,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:59,549 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 05:44:59,555 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 05:44:59,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:44:59,567 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 05:44:59,626 INFO L321 Elim1Store]: treesize reduction 39, result has 18.8 percent of original size [2022-12-14 05:44:59,626 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 05:44:59,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:59,672 INFO L321 Elim1Store]: treesize reduction 56, result has 38.5 percent of original size [2022-12-14 05:44:59,673 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 05:44:59,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:44:59,716 INFO L321 Elim1Store]: treesize reduction 52, result has 42.9 percent of original size [2022-12-14 05:44:59,716 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 05:44:59,725 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-14 05:44:59,726 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-14 05:44:59,789 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 05:44:59,796 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 05:44:59,803 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 05:44:59,861 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 05:44:59,866 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 05:44:59,873 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 05:44:59,878 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:45:01,327 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3965#(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 05:45:01,327 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:45:01,327 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:45:01,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 14] total 42 [2022-12-14 05:45:01,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067924558] [2022-12-14 05:45:01,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:45:01,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-12-14 05:45:01,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:01,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-12-14 05:45:01,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=2631, Unknown=0, NotChecked=0, Total=2862 [2022-12-14 05:45:01,328 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand has 43 states, 42 states have (on average 2.142857142857143) internal successors, (90), 43 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:05,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:05,781 INFO L93 Difference]: Finished difference Result 142 states and 154 transitions. [2022-12-14 05:45:05,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-12-14 05:45:05,781 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 2.142857142857143) internal successors, (90), 43 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-12-14 05:45:05,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:05,782 INFO L225 Difference]: With dead ends: 142 [2022-12-14 05:45:05,782 INFO L226 Difference]: Without dead ends: 142 [2022-12-14 05:45:05,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1584 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=894, Invalid=5112, Unknown=0, NotChecked=0, Total=6006 [2022-12-14 05:45:05,786 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1307 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1307 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:05,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1307 Valid, 264 Invalid, 995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 05:45:05,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-12-14 05:45:05,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 68. [2022-12-14 05:45:05,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.3636363636363635) internal successors, (75), 67 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:05,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2022-12-14 05:45:05,789 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 33 [2022-12-14 05:45:05,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:05,789 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2022-12-14 05:45:05,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 2.142857142857143) internal successors, (90), 43 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:05,789 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2022-12-14 05:45:05,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 05:45:05,790 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:05,790 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:45:05,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-12-14 05:45:05,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 05:45:05,992 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 25 more)] === [2022-12-14 05:45:05,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:05,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1808260053, now seen corresponding path program 2 times [2022-12-14 05:45:05,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:05,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542872497] [2022-12-14 05:45:05,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:05,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:07,333 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 05:45:07,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:07,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542872497] [2022-12-14 05:45:07,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542872497] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:45:07,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749186469] [2022-12-14 05:45:07,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-14 05:45:07,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:07,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:45:07,335 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:45:07,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e382c14-34b5-489f-99e0-b630593b27d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 05:45:07,644 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-14 05:45:07,644 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 05:45:07,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 95 conjunts are in the unsatisfiable core [2022-12-14 05:45:07,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:45:07,722 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:45:07,722 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 05:45:07,728 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 05:45:07,776 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 05:45:07,780 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 05:45:07,835 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 38 treesize of output 33 [2022-12-14 05:45:07,839 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 46 treesize of output 37 [2022-12-14 05:45:07,900 INFO L321 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-12-14 05:45:07,900 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-12-14 05:45:07,907 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 22 treesize of output 24 [2022-12-14 05:45:07,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:45:08,005 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 05:45:08,005 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 43 treesize of output 38 [2022-12-14 05:45:08,010 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:45:08,020 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 05:45:08,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 39 [2022-12-14 05:45:08,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:45:08,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:45:08,222 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:45:08,222 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 121 treesize of output 82 [2022-12-14 05:45:08,237 INFO L321 Elim1Store]: treesize reduction 57, result has 16.2 percent of original size [2022-12-14 05:45:08,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 135 treesize of output 108 [2022-12-14 05:45:08,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:45:08,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:45:08,429 INFO L321 Elim1Store]: treesize reduction 28, result has 55.6 percent of original size [2022-12-14 05:45:08,429 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 119 treesize of output 96 [2022-12-14 05:45:08,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:45:08,464 INFO L321 Elim1Store]: treesize reduction 40, result has 40.3 percent of original size [2022-12-14 05:45:08,464 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 92 treesize of output 89 [2022-12-14 05:45:09,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:45:09,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:45:09,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:45:09,127 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:45:09,133 INFO L321 Elim1Store]: treesize reduction 43, result has 2.3 percent of original size [2022-12-14 05:45:09,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 154 treesize of output 117 [2022-12-14 05:45:09,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:45:09,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:45:09,157 INFO L321 Elim1Store]: treesize reduction 113, result has 8.9 percent of original size [2022-12-14 05:45:09,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 168 treesize of output 147 [2022-12-14 05:45:09,917 INFO L321 Elim1Store]: treesize reduction 234, result has 27.8 percent of original size [2022-12-14 05:45:09,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 15 case distinctions, treesize of input 358 treesize of output 283 [2022-12-14 05:45:10,057 INFO L321 Elim1Store]: treesize reduction 234, result has 27.8 percent of original size [2022-12-14 05:45:10,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 316 treesize of output 267 [2022-12-14 05:45:18,407 INFO L321 Elim1Store]: treesize reduction 56, result has 71.6 percent of original size [2022-12-14 05:45:18,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 15 case distinctions, treesize of input 352 treesize of output 328 [2022-12-14 05:45:18,596 INFO L321 Elim1Store]: treesize reduction 52, result has 70.6 percent of original size [2022-12-14 05:45:18,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 304 treesize of output 310