./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 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_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e47f94c757882803b8e19e21a897c3f5ab1653c3391e3b246153a1c416bdab7c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:55:22,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:55:22,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:55:22,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:55:22,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:55:22,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:55:22,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:55:22,493 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:55:22,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:55:22,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:55:22,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:55:22,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:55:22,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:55:22,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:55:22,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:55:22,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:55:22,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:55:22,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:55:22,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:55:22,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:55:22,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:55:22,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:55:22,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:55:22,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:55:22,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:55:22,515 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:55:22,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:55:22,517 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:55:22,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:55:22,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:55:22,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:55:22,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:55:22,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:55:22,521 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:55:22,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:55:22,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:55:22,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:55:22,524 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:55:22,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:55:22,525 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:55:22,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:55:22,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 01:55:22,568 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:55:22,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:55:22,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:55:22,569 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:55:22,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:55:22,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:55:22,571 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:55:22,571 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:55:22,571 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:55:22,571 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:55:22,572 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:55:22,572 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:55:22,572 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:55:22,573 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:55:22,573 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:55:22,573 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:55:22,573 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:55:22,574 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:55:22,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:55:22,575 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:55:22,575 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:55:22,575 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:55:22,576 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:55:22,576 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:55:22,576 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:55:22,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:55:22,576 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:55:22,577 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:55:22,577 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:55:22,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:55:22,577 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:55:22,577 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:55:22,577 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:55:22,578 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:55:22,578 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:55:22,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:55:22,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:55:22,578 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:55:22,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:55:22,579 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:55:22,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:55:22,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:55:22,579 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_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e47f94c757882803b8e19e21a897c3f5ab1653c3391e3b246153a1c416bdab7c [2022-11-22 01:55:22,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:55:22,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:55:22,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:55:22,839 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:55:22,839 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:55:22,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2022-11-22 01:55:25,924 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:55:26,259 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:55:26,261 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2022-11-22 01:55:26,275 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/data/c7a5809d0/bd40ef16427749a8881e0682df285b69/FLAG7ff68c553 [2022-11-22 01:55:26,289 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/data/c7a5809d0/bd40ef16427749a8881e0682df285b69 [2022-11-22 01:55:26,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:55:26,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:55:26,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:55:26,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:55:26,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:55:26,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aeeaa48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26, skipping insertion in model container [2022-11-22 01:55:26,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:55:26,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:55:26,639 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_1719bdf1-efb5-4fdd-9917-9784e9f97765/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2022-11-22 01:55:26,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:55:26,695 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:55:26,728 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_1719bdf1-efb5-4fdd-9917-9784e9f97765/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2022-11-22 01:55:26,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:55:26,778 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:55:26,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26 WrapperNode [2022-11-22 01:55:26,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:55:26,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:55:26,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:55:26,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:55:26,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,861 INFO L138 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 294 [2022-11-22 01:55:26,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:55:26,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:55:26,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:55:26,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:55:26,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,903 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:55:26,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:55:26,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:55:26,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:55:26,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (1/1) ... [2022-11-22 01:55:26,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:55:26,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:26,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:55:26,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:55:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:55:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2022-11-22 01:55:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2022-11-22 01:55:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-11-22 01:55:27,004 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-11-22 01:55:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:55:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:55:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:55:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:55:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:55:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:55:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:55:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:55:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:55:27,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:55:27,244 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:55:27,246 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:55:27,994 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:55:28,078 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:55:28,078 INFO L300 CfgBuilder]: Removed 33 assume(true) statements. [2022-11-22 01:55:28,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:28 BoogieIcfgContainer [2022-11-22 01:55:28,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:55:28,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:55:28,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:55:28,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:55:28,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:55:26" (1/3) ... [2022-11-22 01:55:28,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2f9d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:55:28, skipping insertion in model container [2022-11-22 01:55:28,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:26" (2/3) ... [2022-11-22 01:55:28,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a2f9d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:55:28, skipping insertion in model container [2022-11-22 01:55:28,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:28" (3/3) ... [2022-11-22 01:55:28,102 INFO L112 eAbstractionObserver]: Analyzing ICFG merge_sort-2.i [2022-11-22 01:55:28,117 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:55:28,117 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 105 error locations. [2022-11-22 01:55:28,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:55:28,232 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;@77230572, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:55:28,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2022-11-22 01:55:28,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 230 states, 107 states have (on average 2.514018691588785) internal successors, (269), 227 states have internal predecessors, (269), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-22 01:55:28,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:55:28,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:28,242 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:55:28,243 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:28,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:28,247 INFO L85 PathProgramCache]: Analyzing trace with hash 18345167, now seen corresponding path program 1 times [2022-11-22 01:55:28,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:28,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571258195] [2022-11-22 01:55:28,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:28,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:28,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:28,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:28,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571258195] [2022-11-22 01:55:28,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571258195] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:28,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:28,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:55:28,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897227417] [2022-11-22 01:55:28,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:28,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:55:28,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:28,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:55:28,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:28,498 INFO L87 Difference]: Start difference. First operand has 230 states, 107 states have (on average 2.514018691588785) internal successors, (269), 227 states have internal predecessors, (269), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:29,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:29,034 INFO L93 Difference]: Finished difference Result 396 states and 447 transitions. [2022-11-22 01:55:29,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:29,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 01:55:29,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:29,061 INFO L225 Difference]: With dead ends: 396 [2022-11-22 01:55:29,061 INFO L226 Difference]: Without dead ends: 394 [2022-11-22 01:55:29,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:29,066 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 181 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:29,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 479 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:55:29,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-11-22 01:55:29,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 226. [2022-11-22 01:55:29,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 107 states have (on average 2.1869158878504673) internal successors, (234), 223 states have internal predecessors, (234), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:29,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 251 transitions. [2022-11-22 01:55:29,130 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 251 transitions. Word has length 4 [2022-11-22 01:55:29,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:29,130 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 251 transitions. [2022-11-22 01:55:29,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:29,131 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 251 transitions. [2022-11-22 01:55:29,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:55:29,131 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:29,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:55:29,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:55:29,132 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:29,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:29,133 INFO L85 PathProgramCache]: Analyzing trace with hash 18345168, now seen corresponding path program 1 times [2022-11-22 01:55:29,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:29,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500027883] [2022-11-22 01:55:29,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:29,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:29,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:29,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500027883] [2022-11-22 01:55:29,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500027883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:29,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:29,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:55:29,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263944536] [2022-11-22 01:55:29,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:29,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:55:29,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:29,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:55:29,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:29,251 INFO L87 Difference]: Start difference. First operand 226 states and 251 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:29,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:29,510 INFO L93 Difference]: Finished difference Result 360 states and 405 transitions. [2022-11-22 01:55:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:29,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-22 01:55:29,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:29,513 INFO L225 Difference]: With dead ends: 360 [2022-11-22 01:55:29,513 INFO L226 Difference]: Without dead ends: 360 [2022-11-22 01:55:29,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:29,515 INFO L413 NwaCegarLoop]: 322 mSDtfsCounter, 148 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:29,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 471 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:55:29,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-22 01:55:29,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 224. [2022-11-22 01:55:29,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 107 states have (on average 2.1682242990654204) internal successors, (232), 221 states have internal predecessors, (232), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:29,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 249 transitions. [2022-11-22 01:55:29,527 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 249 transitions. Word has length 4 [2022-11-22 01:55:29,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:29,528 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 249 transitions. [2022-11-22 01:55:29,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:29,528 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 249 transitions. [2022-11-22 01:55:29,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:55:29,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:29,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:55:29,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:55:29,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:29,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:29,530 INFO L85 PathProgramCache]: Analyzing trace with hash 568154688, now seen corresponding path program 1 times [2022-11-22 01:55:29,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:29,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597414860] [2022-11-22 01:55:29,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:29,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:29,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:29,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:29,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597414860] [2022-11-22 01:55:29,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597414860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:29,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:29,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:55:29,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673911559] [2022-11-22 01:55:29,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:29,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:55:29,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:29,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:55:29,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:29,559 INFO L87 Difference]: Start difference. First operand 224 states and 249 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:29,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:29,791 INFO L93 Difference]: Finished difference Result 349 states and 393 transitions. [2022-11-22 01:55:29,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:29,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2022-11-22 01:55:29,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:29,793 INFO L225 Difference]: With dead ends: 349 [2022-11-22 01:55:29,794 INFO L226 Difference]: Without dead ends: 348 [2022-11-22 01:55:29,794 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 [2022-11-22 01:55:29,795 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 125 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:29,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 311 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:55:29,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-11-22 01:55:29,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 227. [2022-11-22 01:55:29,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 110 states have (on average 2.1454545454545455) internal successors, (236), 224 states have internal predecessors, (236), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 253 transitions. [2022-11-22 01:55:29,807 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 253 transitions. Word has length 5 [2022-11-22 01:55:29,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:29,808 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 253 transitions. [2022-11-22 01:55:29,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 253 transitions. [2022-11-22 01:55:29,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:55:29,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:29,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:55:29,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:55:29,810 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:29,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:29,810 INFO L85 PathProgramCache]: Analyzing trace with hash 450363646, now seen corresponding path program 1 times [2022-11-22 01:55:29,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:29,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354848386] [2022-11-22 01:55:29,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:29,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:29,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:29,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354848386] [2022-11-22 01:55:29,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354848386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:29,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:29,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:55:29,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853085794] [2022-11-22 01:55:29,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:29,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:55:29,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:29,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:55:29,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:29,964 INFO L87 Difference]: Start difference. First operand 227 states and 253 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:30,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:30,245 INFO L93 Difference]: Finished difference Result 360 states and 404 transitions. [2022-11-22 01:55:30,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:30,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-11-22 01:55:30,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:30,248 INFO L225 Difference]: With dead ends: 360 [2022-11-22 01:55:30,249 INFO L226 Difference]: Without dead ends: 360 [2022-11-22 01:55:30,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:30,250 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 146 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:30,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 466 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:55:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2022-11-22 01:55:30,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 225. [2022-11-22 01:55:30,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 110 states have (on average 2.1272727272727274) internal successors, (234), 222 states have internal predecessors, (234), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:30,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 251 transitions. [2022-11-22 01:55:30,259 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 251 transitions. Word has length 6 [2022-11-22 01:55:30,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:30,259 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 251 transitions. [2022-11-22 01:55:30,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:30,260 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 251 transitions. [2022-11-22 01:55:30,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:55:30,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:30,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:55:30,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:55:30,261 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:30,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash 450363645, now seen corresponding path program 1 times [2022-11-22 01:55:30,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:30,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072523444] [2022-11-22 01:55:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:30,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:30,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:30,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:30,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072523444] [2022-11-22 01:55:30,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072523444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:30,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:30,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:55:30,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125497786] [2022-11-22 01:55:30,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:30,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:55:30,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:30,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:55:30,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:30,371 INFO L87 Difference]: Start difference. First operand 225 states and 251 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:30,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:30,637 INFO L93 Difference]: Finished difference Result 390 states and 440 transitions. [2022-11-22 01:55:30,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:30,637 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2022-11-22 01:55:30,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:30,639 INFO L225 Difference]: With dead ends: 390 [2022-11-22 01:55:30,639 INFO L226 Difference]: Without dead ends: 390 [2022-11-22 01:55:30,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:30,641 INFO L413 NwaCegarLoop]: 333 mSDtfsCounter, 174 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:30,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 474 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:55:30,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-11-22 01:55:30,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 223. [2022-11-22 01:55:30,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 110 states have (on average 2.109090909090909) internal successors, (232), 220 states have internal predecessors, (232), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 249 transitions. [2022-11-22 01:55:30,657 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 249 transitions. Word has length 6 [2022-11-22 01:55:30,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:30,658 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 249 transitions. [2022-11-22 01:55:30,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:30,658 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 249 transitions. [2022-11-22 01:55:30,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:55:30,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:30,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:30,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:55:30,660 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:30,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:30,661 INFO L85 PathProgramCache]: Analyzing trace with hash 535440203, now seen corresponding path program 1 times [2022-11-22 01:55:30,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:30,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454320869] [2022-11-22 01:55:30,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:30,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:30,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:30,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:30,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:30,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454320869] [2022-11-22 01:55:30,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454320869] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:30,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:30,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:55:30,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079831861] [2022-11-22 01:55:30,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:30,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:55:30,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:30,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:55:30,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:30,712 INFO L87 Difference]: Start difference. First operand 223 states and 249 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:30,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:30,798 INFO L93 Difference]: Finished difference Result 229 states and 253 transitions. [2022-11-22 01:55:30,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:55:30,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 01:55:30,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:30,800 INFO L225 Difference]: With dead ends: 229 [2022-11-22 01:55:30,800 INFO L226 Difference]: Without dead ends: 228 [2022-11-22 01:55:30,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:55:30,804 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 5 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:30,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 415 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:55:30,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-22 01:55:30,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2022-11-22 01:55:30,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 109 states have (on average 2.110091743119266) internal successors, (230), 219 states have internal predecessors, (230), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:30,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 247 transitions. [2022-11-22 01:55:30,817 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 247 transitions. Word has length 7 [2022-11-22 01:55:30,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:30,817 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 247 transitions. [2022-11-22 01:55:30,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:30,818 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 247 transitions. [2022-11-22 01:55:30,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:55:30,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:30,818 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:30,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:55:30,819 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:30,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:30,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1154009547, now seen corresponding path program 1 times [2022-11-22 01:55:30,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:30,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267183102] [2022-11-22 01:55:30,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:30,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:30,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:30,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:30,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267183102] [2022-11-22 01:55:30,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267183102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:30,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:30,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:55:30,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353136432] [2022-11-22 01:55:30,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:30,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:55:30,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:30,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:55:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:55:30,931 INFO L87 Difference]: Start difference. First operand 222 states and 247 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:31,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:31,084 INFO L93 Difference]: Finished difference Result 353 states and 393 transitions. [2022-11-22 01:55:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:55:31,085 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 01:55:31,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:31,086 INFO L225 Difference]: With dead ends: 353 [2022-11-22 01:55:31,087 INFO L226 Difference]: Without dead ends: 353 [2022-11-22 01:55:31,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:55:31,088 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 535 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:31,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 380 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:55:31,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-11-22 01:55:31,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 222. [2022-11-22 01:55:31,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 109 states have (on average 2.1009174311926606) internal successors, (229), 219 states have internal predecessors, (229), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:31,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 246 transitions. [2022-11-22 01:55:31,096 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 246 transitions. Word has length 11 [2022-11-22 01:55:31,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:31,096 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 246 transitions. [2022-11-22 01:55:31,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:31,097 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 246 transitions. [2022-11-22 01:55:31,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:55:31,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:31,097 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:31,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:55:31,098 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:31,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:31,099 INFO L85 PathProgramCache]: Analyzing trace with hash -901980672, now seen corresponding path program 1 times [2022-11-22 01:55:31,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:31,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003404469] [2022-11-22 01:55:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:31,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:31,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:31,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:31,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003404469] [2022-11-22 01:55:31,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003404469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:31,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:31,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:55:31,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325169917] [2022-11-22 01:55:31,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:31,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:55:31,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:31,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:55:31,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:55:31,179 INFO L87 Difference]: Start difference. First operand 222 states and 246 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:31,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:31,490 INFO L93 Difference]: Finished difference Result 627 states and 702 transitions. [2022-11-22 01:55:31,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:55:31,491 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-22 01:55:31,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:31,494 INFO L225 Difference]: With dead ends: 627 [2022-11-22 01:55:31,494 INFO L226 Difference]: Without dead ends: 627 [2022-11-22 01:55:31,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:55:31,495 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 1320 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:31,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 528 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:55:31,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-11-22 01:55:31,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 247. [2022-11-22 01:55:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 135 states have (on average 2.066666666666667) internal successors, (279), 244 states have internal predecessors, (279), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:31,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 295 transitions. [2022-11-22 01:55:31,505 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 295 transitions. Word has length 13 [2022-11-22 01:55:31,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:31,506 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 295 transitions. [2022-11-22 01:55:31,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:31,506 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 295 transitions. [2022-11-22 01:55:31,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:55:31,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:31,507 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:31,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:55:31,507 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:31,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:31,508 INFO L85 PathProgramCache]: Analyzing trace with hash -901991921, now seen corresponding path program 1 times [2022-11-22 01:55:31,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:31,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917002435] [2022-11-22 01:55:31,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:31,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:31,590 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:31,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917002435] [2022-11-22 01:55:31,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917002435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:31,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:31,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:55:31,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166810314] [2022-11-22 01:55:31,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:31,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:55:31,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:31,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:55:31,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:55:31,592 INFO L87 Difference]: Start difference. First operand 247 states and 295 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) [2022-11-22 01:55:32,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:32,053 INFO L93 Difference]: Finished difference Result 403 states and 470 transitions. [2022-11-22 01:55:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:55:32,054 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 13 [2022-11-22 01:55:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:32,056 INFO L225 Difference]: With dead ends: 403 [2022-11-22 01:55:32,056 INFO L226 Difference]: Without dead ends: 403 [2022-11-22 01:55:32,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:55:32,057 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 578 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:32,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 413 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:55:32,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2022-11-22 01:55:32,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 238. [2022-11-22 01:55:32,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 135 states have (on average 1.9777777777777779) internal successors, (267), 235 states have internal predecessors, (267), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:32,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 283 transitions. [2022-11-22 01:55:32,065 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 283 transitions. Word has length 13 [2022-11-22 01:55:32,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:32,065 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 283 transitions. [2022-11-22 01:55:32,066 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) [2022-11-22 01:55:32,066 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 283 transitions. [2022-11-22 01:55:32,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:55:32,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:32,066 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:32,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:55:32,067 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:32,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:32,067 INFO L85 PathProgramCache]: Analyzing trace with hash -901991920, now seen corresponding path program 1 times [2022-11-22 01:55:32,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:32,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201716222] [2022-11-22 01:55:32,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:32,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:32,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:32,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201716222] [2022-11-22 01:55:32,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201716222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:32,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:32,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:55:32,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714721135] [2022-11-22 01:55:32,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:32,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:55:32,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:32,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:55:32,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:55:32,205 INFO L87 Difference]: Start difference. First operand 238 states and 283 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) [2022-11-22 01:55:32,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:32,693 INFO L93 Difference]: Finished difference Result 534 states and 596 transitions. [2022-11-22 01:55:32,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:55:32,693 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 13 [2022-11-22 01:55:32,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:32,695 INFO L225 Difference]: With dead ends: 534 [2022-11-22 01:55:32,696 INFO L226 Difference]: Without dead ends: 534 [2022-11-22 01:55:32,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:55:32,696 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 806 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:32,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 441 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:55:32,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-11-22 01:55:32,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 258. [2022-11-22 01:55:32,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 155 states have (on average 1.8774193548387097) internal successors, (291), 255 states have internal predecessors, (291), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:32,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 307 transitions. [2022-11-22 01:55:32,705 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 307 transitions. Word has length 13 [2022-11-22 01:55:32,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:32,705 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 307 transitions. [2022-11-22 01:55:32,705 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) [2022-11-22 01:55:32,706 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 307 transitions. [2022-11-22 01:55:32,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 01:55:32,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:32,706 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:32,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:55:32,707 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:32,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:32,707 INFO L85 PathProgramCache]: Analyzing trace with hash -256693872, now seen corresponding path program 1 times [2022-11-22 01:55:32,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:32,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795987019] [2022-11-22 01:55:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:32,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:32,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:55:32,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:32,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795987019] [2022-11-22 01:55:32,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795987019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:32,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:32,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:55:32,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654550784] [2022-11-22 01:55:32,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:32,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:55:32,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:32,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:55:32,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:55:32,843 INFO L87 Difference]: Start difference. First operand 258 states and 307 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:33,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:33,098 INFO L93 Difference]: Finished difference Result 332 states and 387 transitions. [2022-11-22 01:55:33,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:55:33,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-22 01:55:33,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:33,100 INFO L225 Difference]: With dead ends: 332 [2022-11-22 01:55:33,100 INFO L226 Difference]: Without dead ends: 332 [2022-11-22 01:55:33,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:55:33,101 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 96 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:33,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 662 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:55:33,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2022-11-22 01:55:33,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 257. [2022-11-22 01:55:33,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 155 states have (on average 1.864516129032258) internal successors, (289), 254 states have internal predecessors, (289), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:33,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 304 transitions. [2022-11-22 01:55:33,109 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 304 transitions. Word has length 20 [2022-11-22 01:55:33,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:33,109 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 304 transitions. [2022-11-22 01:55:33,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 304 transitions. [2022-11-22 01:55:33,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-22 01:55:33,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:33,110 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:33,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:55:33,111 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:33,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash -937110950, now seen corresponding path program 1 times [2022-11-22 01:55:33,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:33,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127196490] [2022-11-22 01:55:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:33,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:55:33,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:33,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127196490] [2022-11-22 01:55:33,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127196490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:33,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:33,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:55:33,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098792779] [2022-11-22 01:55:33,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:33,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:55:33,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:33,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:55:33,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:55:33,234 INFO L87 Difference]: Start difference. First operand 257 states and 304 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:33,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:33,447 INFO L93 Difference]: Finished difference Result 256 states and 301 transitions. [2022-11-22 01:55:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:55:33,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-22 01:55:33,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:33,450 INFO L225 Difference]: With dead ends: 256 [2022-11-22 01:55:33,450 INFO L226 Difference]: Without dead ends: 256 [2022-11-22 01:55:33,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:55:33,451 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 19 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:33,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 673 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:55:33,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-11-22 01:55:33,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2022-11-22 01:55:33,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8516129032258064) internal successors, (287), 253 states have internal predecessors, (287), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:33,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 301 transitions. [2022-11-22 01:55:33,460 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 301 transitions. Word has length 20 [2022-11-22 01:55:33,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:33,461 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 301 transitions. [2022-11-22 01:55:33,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:33,461 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 301 transitions. [2022-11-22 01:55:33,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-22 01:55:33,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:33,462 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:33,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:55:33,463 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:33,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:33,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1946598122, now seen corresponding path program 1 times [2022-11-22 01:55:33,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:33,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735731004] [2022-11-22 01:55:33,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:33,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:33,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:33,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:33,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735731004] [2022-11-22 01:55:33,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735731004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:33,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:33,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:55:33,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480082647] [2022-11-22 01:55:33,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:33,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:55:33,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:33,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:55:33,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:55:33,649 INFO L87 Difference]: Start difference. First operand 256 states and 301 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:34,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:34,041 INFO L93 Difference]: Finished difference Result 538 states and 595 transitions. [2022-11-22 01:55:34,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:55:34,041 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-22 01:55:34,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:34,043 INFO L225 Difference]: With dead ends: 538 [2022-11-22 01:55:34,044 INFO L226 Difference]: Without dead ends: 538 [2022-11-22 01:55:34,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:55:34,045 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 1177 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:34,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1179 Valid, 825 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:55:34,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-11-22 01:55:34,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 256. [2022-11-22 01:55:34,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8451612903225807) internal successors, (286), 253 states have internal predecessors, (286), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:34,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 300 transitions. [2022-11-22 01:55:34,053 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 300 transitions. Word has length 23 [2022-11-22 01:55:34,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:34,054 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 300 transitions. [2022-11-22 01:55:34,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:34,054 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 300 transitions. [2022-11-22 01:55:34,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-22 01:55:34,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:34,055 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:34,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:55:34,055 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:34,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:34,055 INFO L85 PathProgramCache]: Analyzing trace with hash -479719491, now seen corresponding path program 1 times [2022-11-22 01:55:34,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:34,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035261501] [2022-11-22 01:55:34,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:34,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:34,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:34,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035261501] [2022-11-22 01:55:34,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035261501] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:34,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:34,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 01:55:34,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071978402] [2022-11-22 01:55:34,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:34,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:55:34,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:34,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:55:34,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:55:34,212 INFO L87 Difference]: Start difference. First operand 256 states and 300 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:34,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:34,625 INFO L93 Difference]: Finished difference Result 537 states and 593 transitions. [2022-11-22 01:55:34,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:55:34,625 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-22 01:55:34,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:34,627 INFO L225 Difference]: With dead ends: 537 [2022-11-22 01:55:34,628 INFO L226 Difference]: Without dead ends: 537 [2022-11-22 01:55:34,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:55:34,628 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 1173 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:34,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1175 Valid, 825 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:55:34,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-11-22 01:55:34,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 256. [2022-11-22 01:55:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8387096774193548) internal successors, (285), 253 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:34,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 299 transitions. [2022-11-22 01:55:34,637 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 299 transitions. Word has length 23 [2022-11-22 01:55:34,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:34,637 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 299 transitions. [2022-11-22 01:55:34,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:34,637 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 299 transitions. [2022-11-22 01:55:34,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 01:55:34,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:34,638 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:34,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 01:55:34,638 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:34,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:34,639 INFO L85 PathProgramCache]: Analyzing trace with hash 214784498, now seen corresponding path program 1 times [2022-11-22 01:55:34,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:34,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865137085] [2022-11-22 01:55:34,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:34,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:34,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:34,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:34,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865137085] [2022-11-22 01:55:34,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865137085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:34,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:34,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 01:55:34,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331573472] [2022-11-22 01:55:34,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:34,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:55:34,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:34,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:55:34,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:55:34,905 INFO L87 Difference]: Start difference. First operand 256 states and 299 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:35,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:35,705 INFO L93 Difference]: Finished difference Result 602 states and 673 transitions. [2022-11-22 01:55:35,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:55:35,706 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-22 01:55:35,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:35,708 INFO L225 Difference]: With dead ends: 602 [2022-11-22 01:55:35,708 INFO L226 Difference]: Without dead ends: 602 [2022-11-22 01:55:35,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:55:35,710 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1478 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:35,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1480 Valid, 642 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:55:35,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2022-11-22 01:55:35,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 257. [2022-11-22 01:55:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8397435897435896) internal successors, (287), 254 states have internal predecessors, (287), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:35,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 301 transitions. [2022-11-22 01:55:35,720 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 301 transitions. Word has length 24 [2022-11-22 01:55:35,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:35,720 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 301 transitions. [2022-11-22 01:55:35,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 301 transitions. [2022-11-22 01:55:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 01:55:35,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:35,722 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:35,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:55:35,722 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:35,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:35,723 INFO L85 PathProgramCache]: Analyzing trace with hash 214784499, now seen corresponding path program 1 times [2022-11-22 01:55:35,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:35,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81219710] [2022-11-22 01:55:35,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:35,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:36,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:36,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81219710] [2022-11-22 01:55:36,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81219710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:36,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:36,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:55:36,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705975964] [2022-11-22 01:55:36,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:36,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:55:36,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:36,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:55:36,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:55:36,091 INFO L87 Difference]: Start difference. First operand 257 states and 301 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:36,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:36,799 INFO L93 Difference]: Finished difference Result 595 states and 659 transitions. [2022-11-22 01:55:36,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:55:36,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-22 01:55:36,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:36,802 INFO L225 Difference]: With dead ends: 595 [2022-11-22 01:55:36,802 INFO L226 Difference]: Without dead ends: 595 [2022-11-22 01:55:36,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:55:36,803 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 1071 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:36,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 684 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:55:36,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-11-22 01:55:36,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 257. [2022-11-22 01:55:36,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8333333333333333) internal successors, (286), 254 states have internal predecessors, (286), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:36,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 300 transitions. [2022-11-22 01:55:36,811 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 300 transitions. Word has length 24 [2022-11-22 01:55:36,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:36,811 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 300 transitions. [2022-11-22 01:55:36,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:36,811 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 300 transitions. [2022-11-22 01:55:36,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 01:55:36,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:36,812 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:36,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 01:55:36,812 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:36,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:36,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1986692204, now seen corresponding path program 1 times [2022-11-22 01:55:36,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:36,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717610940] [2022-11-22 01:55:36,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:36,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:37,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:37,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:37,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717610940] [2022-11-22 01:55:37,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717610940] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:37,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:37,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 01:55:37,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695673398] [2022-11-22 01:55:37,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:37,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:55:37,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:37,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:55:37,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:55:37,061 INFO L87 Difference]: Start difference. First operand 257 states and 300 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:37,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:37,928 INFO L93 Difference]: Finished difference Result 600 states and 671 transitions. [2022-11-22 01:55:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:55:37,929 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-22 01:55:37,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:37,931 INFO L225 Difference]: With dead ends: 600 [2022-11-22 01:55:37,931 INFO L226 Difference]: Without dead ends: 600 [2022-11-22 01:55:37,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:55:37,932 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1009 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:37,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1011 Valid, 869 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:55:37,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2022-11-22 01:55:37,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 257. [2022-11-22 01:55:37,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8269230769230769) internal successors, (285), 254 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:37,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 299 transitions. [2022-11-22 01:55:37,941 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 299 transitions. Word has length 24 [2022-11-22 01:55:37,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:37,941 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 299 transitions. [2022-11-22 01:55:37,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:37,942 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 299 transitions. [2022-11-22 01:55:37,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 01:55:37,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:37,943 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:37,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 01:55:37,943 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:37,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:37,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1986692203, now seen corresponding path program 1 times [2022-11-22 01:55:37,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:37,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050000159] [2022-11-22 01:55:37,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:37,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:38,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:38,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050000159] [2022-11-22 01:55:38,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050000159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:38,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:38,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 01:55:38,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587794612] [2022-11-22 01:55:38,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:38,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:55:38,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:38,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:55:38,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:55:38,331 INFO L87 Difference]: Start difference. First operand 257 states and 299 transitions. Second operand has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:39,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:39,513 INFO L93 Difference]: Finished difference Result 707 states and 786 transitions. [2022-11-22 01:55:39,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:55:39,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-22 01:55:39,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:39,519 INFO L225 Difference]: With dead ends: 707 [2022-11-22 01:55:39,519 INFO L226 Difference]: Without dead ends: 707 [2022-11-22 01:55:39,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2022-11-22 01:55:39,520 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 1491 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:39,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 654 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 912 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 01:55:39,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-22 01:55:39,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 257. [2022-11-22 01:55:39,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8205128205128205) internal successors, (284), 254 states have internal predecessors, (284), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:39,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 298 transitions. [2022-11-22 01:55:39,529 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 298 transitions. Word has length 24 [2022-11-22 01:55:39,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:39,530 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 298 transitions. [2022-11-22 01:55:39,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.0) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:39,530 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 298 transitions. [2022-11-22 01:55:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 01:55:39,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:39,534 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:39,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 01:55:39,536 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:39,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash -856061257, now seen corresponding path program 1 times [2022-11-22 01:55:39,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:39,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974669176] [2022-11-22 01:55:39,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:39,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:40,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:40,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:40,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974669176] [2022-11-22 01:55:40,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974669176] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:40,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:40,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:55:40,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870645619] [2022-11-22 01:55:40,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:40,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:55:40,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:40,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:55:40,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:55:40,047 INFO L87 Difference]: Start difference. First operand 257 states and 298 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:40,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:40,999 INFO L93 Difference]: Finished difference Result 532 states and 587 transitions. [2022-11-22 01:55:40,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:55:40,999 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-22 01:55:40,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:41,001 INFO L225 Difference]: With dead ends: 532 [2022-11-22 01:55:41,001 INFO L226 Difference]: Without dead ends: 532 [2022-11-22 01:55:41,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:55:41,002 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1490 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:41,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1490 Valid, 1089 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-22 01:55:41,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2022-11-22 01:55:41,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 258. [2022-11-22 01:55:41,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 157 states have (on average 1.8152866242038217) internal successors, (285), 255 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:41,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 299 transitions. [2022-11-22 01:55:41,010 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 299 transitions. Word has length 27 [2022-11-22 01:55:41,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:41,011 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 299 transitions. [2022-11-22 01:55:41,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:41,011 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 299 transitions. [2022-11-22 01:55:41,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-22 01:55:41,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:41,011 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:41,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 01:55:41,012 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:41,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:41,012 INFO L85 PathProgramCache]: Analyzing trace with hash -897960630, now seen corresponding path program 1 times [2022-11-22 01:55:41,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:41,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466706159] [2022-11-22 01:55:41,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:41,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:41,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:41,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:41,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466706159] [2022-11-22 01:55:41,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466706159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:41,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:41,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:55:41,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877572682] [2022-11-22 01:55:41,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:41,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:55:41,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:55:41,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:55:41,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:55:41,473 INFO L87 Difference]: Start difference. First operand 258 states and 299 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:42,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:42,488 INFO L93 Difference]: Finished difference Result 531 states and 585 transitions. [2022-11-22 01:55:42,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:55:42,488 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-11-22 01:55:42,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:42,491 INFO L225 Difference]: With dead ends: 531 [2022-11-22 01:55:42,491 INFO L226 Difference]: Without dead ends: 531 [2022-11-22 01:55:42,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:55:42,492 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 1485 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1485 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:55:42,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1485 Valid, 1089 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:55:42,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2022-11-22 01:55:42,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 258. [2022-11-22 01:55:42,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 157 states have (on average 1.8089171974522293) internal successors, (284), 255 states have internal predecessors, (284), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:55:42,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 298 transitions. [2022-11-22 01:55:42,502 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 298 transitions. Word has length 27 [2022-11-22 01:55:42,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:42,502 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 298 transitions. [2022-11-22 01:55:42,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:55:42,503 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 298 transitions. [2022-11-22 01:55:42,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 01:55:42,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:42,503 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:42,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 01:55:42,504 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:55:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:42,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2067233019, now seen corresponding path program 1 times [2022-11-22 01:55:42,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:42,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477223611] [2022-11-22 01:55:42,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:42,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:42,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:42,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:55:42,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477223611] [2022-11-22 01:55:42,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477223611] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:55:42,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212712637] [2022-11-22 01:55:42,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:42,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:55:42,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:42,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:55:42,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:55:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:43,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-22 01:55:43,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:43,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:55:43,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:55:43,453 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 19 treesize of output 7 [2022-11-22 01:55:43,458 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 19 treesize of output 7 [2022-11-22 01:55:43,465 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:43,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:55:43,686 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:55:43,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212712637] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:55:43,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [266735312] [2022-11-22 01:55:43,709 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-22 01:55:43,709 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:55:43,714 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:55:43,719 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:55:43,719 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:55:43,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,820 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:55:43,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:55:43,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,851 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 [2022-11-22 01:55:43,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:55:43,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:55:43,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,907 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 [2022-11-22 01:55:43,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:55:43,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,940 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 [2022-11-22 01:55:43,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,970 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 [2022-11-22 01:55:43,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:43,988 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 50 treesize of output 38 [2022-11-22 01:55:44,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,006 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 [2022-11-22 01:55:44,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,046 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 54 treesize of output 38 [2022-11-22 01:55:44,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:55:44,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:55:44,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,149 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 38 treesize of output 47 [2022-11-22 01:55:44,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,234 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 01:55:44,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-22 01:55:44,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:55:44,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,285 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 54 treesize of output 40 [2022-11-22 01:55:44,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,365 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:44,386 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-22 01:55:44,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-22 01:55:44,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,416 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-22 01:55:44,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,438 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 52 treesize of output 49 [2022-11-22 01:55:44,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-22 01:55:44,595 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 01:55:44,595 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-22 01:55:44,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 01:55:44,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-22 01:55:44,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,786 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:44,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:44,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:44,815 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-22 01:55:44,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-11-22 01:55:44,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:44,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:44,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:44,867 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-11-22 01:55:44,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 621 treesize of output 624 [2022-11-22 01:55:44,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:44,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:44,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:44,925 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-22 01:55:44,926 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 639 treesize of output 606 [2022-11-22 01:55:45,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:45,452 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-22 01:55:45,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-11-22 01:55:46,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:46,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:46,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:46,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:46,375 INFO L321 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2022-11-22 01:55:46,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 2133 treesize of output 1288 [2022-11-22 01:55:46,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:46,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:46,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:46,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:46,541 INFO L321 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2022-11-22 01:55:46,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 2109 treesize of output 1967 [2022-11-22 01:55:46,626 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2022-11-22 01:55:46,626 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 2053 treesize of output 1908 [2022-11-22 01:55:48,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:48,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:48,007 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:48,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:48,070 INFO L321 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2022-11-22 01:55:48,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 3937 treesize of output 2318 [2022-11-22 01:55:48,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:48,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:48,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:48,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:48,256 INFO L321 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2022-11-22 01:55:48,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 3955 treesize of output 3637 [2022-11-22 01:55:48,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:48,546 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-22 01:55:48,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3936 treesize of output 3782 [2022-11-22 01:55:48,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:48,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:48,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:48,704 INFO L321 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2022-11-22 01:55:48,705 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 3888 treesize of output 3620 [2022-11-22 01:55:52,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:52,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:52,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:52,876 INFO L321 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2022-11-22 01:55:52,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 14329 treesize of output 8383 [2022-11-22 01:55:53,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:53,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:53,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:53,261 INFO L321 Elim1Store]: treesize reduction 300, result has 18.9 percent of original size [2022-11-22 01:55:53,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 14291 treesize of output 13122 [2022-11-22 01:55:53,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:53,473 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:55:53,500 INFO L321 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2022-11-22 01:55:53,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 14136 treesize of output 13160 [2022-11-22 01:55:57,711 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 13 treesize of output 9 [2022-11-22 01:55:57,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:55:57,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:55:57,742 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:55:57,742 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 [2022-11-22 01:55:57,765 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:55:57,765 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 [2022-11-22 01:55:57,778 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 15 treesize of output 1 [2022-11-22 01:55:57,785 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 21 treesize of output 20 [2022-11-22 01:55:57,792 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 [2022-11-22 01:55:57,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:55:57,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:57,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:55:57,847 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-22 01:55:57,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 31 [2022-11-22 01:55:57,885 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:55:57,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:55:57,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:57,899 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-22 01:55:57,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:55:57,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 01:55:57,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 01:55:57,948 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:55:57,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:55:57,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:55:58,954 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 01:55:58,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-22 01:55:59,111 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:55:59,111 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 [2022-11-22 01:55:59,146 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:55:59,147 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 [2022-11-22 01:55:59,332 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:55:59,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 418 treesize of output 421 [2022-11-22 01:55:59,359 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:55:59,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 410 treesize of output 381 [2022-11-22 01:55:59,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:55:59,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:59,712 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 01:55:59,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 726 treesize of output 723 [2022-11-22 01:55:59,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:59,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:59,739 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 691 treesize of output 653 [2022-11-22 01:55:59,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:55:59,800 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 01:55:59,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 704 treesize of output 687 [2022-11-22 01:56:01,199 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:56:01,199 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-22 01:56:01,241 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 01:56:01,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:01,314 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:56:01,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:56:01,467 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:56:01,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:56:01,523 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 01:56:01,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:01,580 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:56:01,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:56:01,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:01,684 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:01,761 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:56:04,040 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14798#(and (<= 0 |#NULL.base|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-22 01:56:04,040 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:56:04,040 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:56:04,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 13 [2022-11-22 01:56:04,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320189110] [2022-11-22 01:56:04,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:56:04,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:56:04,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:04,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:56:04,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=870, Unknown=0, NotChecked=0, Total=992 [2022-11-22 01:56:04,043 INFO L87 Difference]: Start difference. First operand 258 states and 298 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:04,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:04,495 INFO L93 Difference]: Finished difference Result 434 states and 491 transitions. [2022-11-22 01:56:04,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:56:04,496 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-11-22 01:56:04,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:04,498 INFO L225 Difference]: With dead ends: 434 [2022-11-22 01:56:04,498 INFO L226 Difference]: Without dead ends: 430 [2022-11-22 01:56:04,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=137, Invalid=985, Unknown=0, NotChecked=0, Total=1122 [2022-11-22 01:56:04,499 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 526 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:04,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 1248 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:56:04,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2022-11-22 01:56:04,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 269. [2022-11-22 01:56:04,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 168 states have (on average 1.7619047619047619) internal successors, (296), 266 states have internal predecessors, (296), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:56:04,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 310 transitions. [2022-11-22 01:56:04,507 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 310 transitions. Word has length 28 [2022-11-22 01:56:04,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:04,508 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 310 transitions. [2022-11-22 01:56:04,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 13 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:04,508 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 310 transitions. [2022-11-22 01:56:04,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-22 01:56:04,508 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:04,509 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:04,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:56:04,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-22 01:56:04,714 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:56:04,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:04,715 INFO L85 PathProgramCache]: Analyzing trace with hash -260397027, now seen corresponding path program 1 times [2022-11-22 01:56:04,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:04,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843717693] [2022-11-22 01:56:04,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:04,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:04,905 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:04,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843717693] [2022-11-22 01:56:04,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843717693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:04,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:04,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:56:04,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634706573] [2022-11-22 01:56:04,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:04,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:56:04,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:04,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:56:04,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:56:04,907 INFO L87 Difference]: Start difference. First operand 269 states and 310 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:05,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:05,337 INFO L93 Difference]: Finished difference Result 441 states and 486 transitions. [2022-11-22 01:56:05,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:56:05,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-22 01:56:05,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:05,345 INFO L225 Difference]: With dead ends: 441 [2022-11-22 01:56:05,345 INFO L226 Difference]: Without dead ends: 441 [2022-11-22 01:56:05,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:56:05,345 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 428 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:05,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 478 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:56:05,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2022-11-22 01:56:05,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 274. [2022-11-22 01:56:05,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 173 states have (on average 1.76878612716763) internal successors, (306), 271 states have internal predecessors, (306), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:56:05,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 320 transitions. [2022-11-22 01:56:05,353 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 320 transitions. Word has length 31 [2022-11-22 01:56:05,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:05,354 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 320 transitions. [2022-11-22 01:56:05,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:05,354 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 320 transitions. [2022-11-22 01:56:05,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-22 01:56:05,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:05,356 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:05,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 01:56:05,356 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:56:05,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:05,357 INFO L85 PathProgramCache]: Analyzing trace with hash -260397028, now seen corresponding path program 1 times [2022-11-22 01:56:05,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:05,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225064468] [2022-11-22 01:56:05,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:05,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:05,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:05,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:56:05,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:05,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225064468] [2022-11-22 01:56:05,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225064468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:05,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:05,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:56:05,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230804743] [2022-11-22 01:56:05,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:05,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:56:05,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:05,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:56:05,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:56:05,461 INFO L87 Difference]: Start difference. First operand 274 states and 320 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:05,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:05,901 INFO L93 Difference]: Finished difference Result 546 states and 628 transitions. [2022-11-22 01:56:05,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:56:05,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-11-22 01:56:05,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:05,904 INFO L225 Difference]: With dead ends: 546 [2022-11-22 01:56:05,904 INFO L226 Difference]: Without dead ends: 546 [2022-11-22 01:56:05,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:56:05,905 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 885 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 887 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:05,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [887 Valid, 442 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:56:05,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2022-11-22 01:56:05,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 274. [2022-11-22 01:56:05,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.7428571428571429) internal successors, (305), 271 states have internal predecessors, (305), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:56:05,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 319 transitions. [2022-11-22 01:56:05,913 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 319 transitions. Word has length 31 [2022-11-22 01:56:05,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:05,913 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 319 transitions. [2022-11-22 01:56:05,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:05,914 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 319 transitions. [2022-11-22 01:56:05,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:56:05,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:05,915 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:05,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 01:56:05,915 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:56:05,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:05,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1131391516, now seen corresponding path program 1 times [2022-11-22 01:56:05,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:05,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580492861] [2022-11-22 01:56:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:05,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:05,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:05,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:05,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580492861] [2022-11-22 01:56:05,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580492861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:05,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:05,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:56:05,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637126067] [2022-11-22 01:56:05,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:05,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:56:05,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:05,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:56:05,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:56:05,995 INFO L87 Difference]: Start difference. First operand 274 states and 319 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:06,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:06,193 INFO L93 Difference]: Finished difference Result 371 states and 412 transitions. [2022-11-22 01:56:06,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:56:06,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2022-11-22 01:56:06,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:06,195 INFO L225 Difference]: With dead ends: 371 [2022-11-22 01:56:06,195 INFO L226 Difference]: Without dead ends: 371 [2022-11-22 01:56:06,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:56:06,196 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 711 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:06,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 667 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:56:06,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-11-22 01:56:06,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 274. [2022-11-22 01:56:06,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.737142857142857) internal successors, (304), 271 states have internal predecessors, (304), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:56:06,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 318 transitions. [2022-11-22 01:56:06,202 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 318 transitions. Word has length 33 [2022-11-22 01:56:06,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:06,203 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 318 transitions. [2022-11-22 01:56:06,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 318 transitions. [2022-11-22 01:56:06,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 01:56:06,203 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:06,203 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:06,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-22 01:56:06,204 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:56:06,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:06,204 INFO L85 PathProgramCache]: Analyzing trace with hash 517949580, now seen corresponding path program 1 times [2022-11-22 01:56:06,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:06,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526092119] [2022-11-22 01:56:06,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:06,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:06,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:06,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:06,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526092119] [2022-11-22 01:56:06,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526092119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:06,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:06,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:56:06,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035879138] [2022-11-22 01:56:06,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:06,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:56:06,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:06,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:56:06,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:56:06,278 INFO L87 Difference]: Start difference. First operand 274 states and 318 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:06,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:06,543 INFO L93 Difference]: Finished difference Result 480 states and 533 transitions. [2022-11-22 01:56:06,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:56:06,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-11-22 01:56:06,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:06,546 INFO L225 Difference]: With dead ends: 480 [2022-11-22 01:56:06,546 INFO L226 Difference]: Without dead ends: 480 [2022-11-22 01:56:06,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-22 01:56:06,546 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 973 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:06,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 776 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:56:06,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2022-11-22 01:56:06,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 274. [2022-11-22 01:56:06,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.7314285714285715) internal successors, (303), 271 states have internal predecessors, (303), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:56:06,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 317 transitions. [2022-11-22 01:56:06,553 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 317 transitions. Word has length 32 [2022-11-22 01:56:06,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:06,553 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 317 transitions. [2022-11-22 01:56:06,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:06,553 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 317 transitions. [2022-11-22 01:56:06,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:56:06,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:06,554 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:06,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 01:56:06,554 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:56:06,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:06,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1131392727, now seen corresponding path program 1 times [2022-11-22 01:56:06,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:06,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235106736] [2022-11-22 01:56:06,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:06,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:06,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:56:06,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:06,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235106736] [2022-11-22 01:56:06,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235106736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:06,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:06,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:56:06,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107431579] [2022-11-22 01:56:06,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:06,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:56:06,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:06,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:56:06,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:56:06,637 INFO L87 Difference]: Start difference. First operand 274 states and 317 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:07,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:07,096 INFO L93 Difference]: Finished difference Result 492 states and 561 transitions. [2022-11-22 01:56:07,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:56:07,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 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 [2022-11-22 01:56:07,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:07,099 INFO L225 Difference]: With dead ends: 492 [2022-11-22 01:56:07,099 INFO L226 Difference]: Without dead ends: 492 [2022-11-22 01:56:07,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:56:07,099 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 422 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 558 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:07,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 558 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:56:07,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-11-22 01:56:07,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 271. [2022-11-22 01:56:07,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 175 states have (on average 1.697142857142857) internal successors, (297), 268 states have internal predecessors, (297), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:56:07,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 311 transitions. [2022-11-22 01:56:07,107 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 311 transitions. Word has length 33 [2022-11-22 01:56:07,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:07,108 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 311 transitions. [2022-11-22 01:56:07,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:07,108 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 311 transitions. [2022-11-22 01:56:07,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-22 01:56:07,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:07,109 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:07,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 01:56:07,109 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr68REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:56:07,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:07,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1131392726, now seen corresponding path program 1 times [2022-11-22 01:56:07,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:07,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747390150] [2022-11-22 01:56:07,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:07,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:07,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:07,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:07,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747390150] [2022-11-22 01:56:07,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747390150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:56:07,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:56:07,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:56:07,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003317731] [2022-11-22 01:56:07,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:56:07,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:56:07,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:07,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:56:07,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:56:07,248 INFO L87 Difference]: Start difference. First operand 271 states and 311 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:07,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:07,600 INFO L93 Difference]: Finished difference Result 365 states and 404 transitions. [2022-11-22 01:56:07,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:56:07,600 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 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 [2022-11-22 01:56:07,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:07,602 INFO L225 Difference]: With dead ends: 365 [2022-11-22 01:56:07,602 INFO L226 Difference]: Without dead ends: 365 [2022-11-22 01:56:07,603 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 [2022-11-22 01:56:07,603 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 312 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:07,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 426 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:56:07,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2022-11-22 01:56:07,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 271. [2022-11-22 01:56:07,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 175 states have (on average 1.68) internal successors, (294), 268 states have internal predecessors, (294), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:56:07,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 308 transitions. [2022-11-22 01:56:07,610 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 308 transitions. Word has length 33 [2022-11-22 01:56:07,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:07,610 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 308 transitions. [2022-11-22 01:56:07,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:07,611 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 308 transitions. [2022-11-22 01:56:07,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 01:56:07,611 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:07,611 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:07,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-22 01:56:07,612 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:56:07,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:07,612 INFO L85 PathProgramCache]: Analyzing trace with hash -100268176, now seen corresponding path program 2 times [2022-11-22 01:56:07,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:07,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986290290] [2022-11-22 01:56:07,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:07,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:07,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:08,209 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:08,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:08,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986290290] [2022-11-22 01:56:08,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986290290] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:56:08,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993592300] [2022-11-22 01:56:08,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:56:08,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:56:08,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:56:08,215 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:56:08,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:56:08,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-22 01:56:08,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:56:08,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-22 01:56:08,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:56:08,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:56:08,418 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:56:08,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:56:08,434 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-22 01:56:08,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-11-22 01:56:08,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:08,635 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 17 treesize of output 9 [2022-11-22 01:56:08,653 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:08,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:56:08,834 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:08,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993592300] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:56:08,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [256276652] [2022-11-22 01:56:08,836 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-22 01:56:08,837 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:56:08,838 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:56:08,838 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:56:08,839 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:56:08,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:56:08,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:56:08,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,897 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 [2022-11-22 01:56:08,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:56:08,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,928 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 [2022-11-22 01:56:08,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:08,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,948 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 [2022-11-22 01:56:08,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:08,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,985 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 [2022-11-22 01:56:08,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:08,994 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 [2022-11-22 01:56:09,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,010 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 50 treesize of output 38 [2022-11-22 01:56:09,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,036 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 54 treesize of output 38 [2022-11-22 01:56:09,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:56:09,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:56:09,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,109 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 38 treesize of output 47 [2022-11-22 01:56:09,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,172 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 01:56:09,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-22 01:56:09,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:56:09,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,215 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 54 treesize of output 40 [2022-11-22 01:56:09,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:09,294 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-22 01:56:09,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-22 01:56:09,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,319 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 52 treesize of output 49 [2022-11-22 01:56:09,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,339 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-22 01:56:09,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-22 01:56:09,466 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 01:56:09,466 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-22 01:56:09,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-22 01:56:09,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 01:56:09,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,611 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:09,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:09,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:09,637 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-22 01:56:09,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-11-22 01:56:09,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,656 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:09,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:09,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,691 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-22 01:56:09,692 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 627 treesize of output 594 [2022-11-22 01:56:09,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:09,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:09,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:09,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:09,739 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-11-22 01:56:09,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 593 treesize of output 596 [2022-11-22 01:56:10,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:10,171 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-22 01:56:10,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-11-22 01:56:10,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:10,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:10,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:10,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:10,903 INFO L321 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2022-11-22 01:56:10,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1462 treesize of output 893 [2022-11-22 01:56:10,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:10,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:10,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:10,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:11,042 INFO L321 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2022-11-22 01:56:11,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 1452 treesize of output 1380 [2022-11-22 01:56:11,105 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2022-11-22 01:56:11,106 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 1410 treesize of output 1313 [2022-11-22 01:56:12,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:12,012 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:12,013 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:12,014 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:12,089 INFO L321 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2022-11-22 01:56:12,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 3497 treesize of output 2086 [2022-11-22 01:56:12,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:12,401 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-22 01:56:12,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3496 treesize of output 3374 [2022-11-22 01:56:12,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:12,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:12,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:12,554 INFO L321 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2022-11-22 01:56:12,555 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 3460 treesize of output 3216 [2022-11-22 01:56:12,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:12,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:12,634 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:12,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:12,695 INFO L321 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2022-11-22 01:56:12,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 3435 treesize of output 3155 [2022-11-22 01:56:14,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:14,323 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:14,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:14,453 INFO L321 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2022-11-22 01:56:14,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 6984 treesize of output 4114 [2022-11-22 01:56:14,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:14,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:14,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:14,609 INFO L321 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2022-11-22 01:56:14,610 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 6959 treesize of output 6495 [2022-11-22 01:56:14,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:14,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:14,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:14,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:14,837 INFO L321 Elim1Store]: treesize reduction 284, result has 18.2 percent of original size [2022-11-22 01:56:14,838 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 23 case distinctions, treesize of input 6960 treesize of output 6423 [2022-11-22 01:56:18,236 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:56:18,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:18,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:18,268 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:56:18,269 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 [2022-11-22 01:56:18,276 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 [2022-11-22 01:56:18,290 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 15 treesize of output 1 [2022-11-22 01:56:18,296 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 21 treesize of output 20 [2022-11-22 01:56:18,303 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 [2022-11-22 01:56:18,337 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-22 01:56:18,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-11-22 01:56:18,376 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:56:18,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:56:18,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:18,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:18,397 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-22 01:56:18,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:18,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:18,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 01:56:18,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:56:18,439 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:56:18,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:18,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:56:18,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:19,364 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 01:56:19,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-22 01:56:19,490 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:56:19,490 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 [2022-11-22 01:56:19,526 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:56:19,526 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 [2022-11-22 01:56:19,716 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:56:19,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 418 treesize of output 421 [2022-11-22 01:56:19,741 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:56:19,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 410 treesize of output 381 [2022-11-22 01:56:19,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:56:20,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:20,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:20,078 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 852 treesize of output 802 [2022-11-22 01:56:20,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:20,165 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 01:56:20,165 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 857 treesize of output 850 [2022-11-22 01:56:20,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:20,230 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 01:56:20,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 831 treesize of output 814 [2022-11-22 01:56:21,835 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:56:21,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:56:22,076 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 01:56:22,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:22,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 01:56:22,320 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 01:56:22,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:22,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 01:56:22,393 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 01:56:22,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:22,442 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 01:56:22,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:22,487 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 01:56:22,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:22,538 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 01:56:22,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:22,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:22,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:22,821 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:56:25,386 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20146#(and (<= 0 |#NULL.base|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-22 01:56:25,386 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:56:25,386 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:56:25,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 17 [2022-11-22 01:56:25,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192099243] [2022-11-22 01:56:25,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:56:25,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-22 01:56:25,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:25,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-22 01:56:25,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1093, Unknown=0, NotChecked=0, Total=1260 [2022-11-22 01:56:25,388 INFO L87 Difference]: Start difference. First operand 271 states and 308 transitions. Second operand has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:26,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:26,791 INFO L93 Difference]: Finished difference Result 580 states and 658 transitions. [2022-11-22 01:56:26,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 01:56:26,792 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-22 01:56:26,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:26,795 INFO L225 Difference]: With dead ends: 580 [2022-11-22 01:56:26,795 INFO L226 Difference]: Without dead ends: 580 [2022-11-22 01:56:26,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=304, Invalid=1766, Unknown=0, NotChecked=0, Total=2070 [2022-11-22 01:56:26,796 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 1722 mSDsluCounter, 1143 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 1632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:26,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 1353 Invalid, 1632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-22 01:56:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-11-22 01:56:26,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 272. [2022-11-22 01:56:26,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 176 states have (on average 1.6818181818181819) internal successors, (296), 269 states have internal predecessors, (296), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:56:26,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 310 transitions. [2022-11-22 01:56:26,815 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 310 transitions. Word has length 34 [2022-11-22 01:56:26,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:26,815 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 310 transitions. [2022-11-22 01:56:26,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.235294117647059) internal successors, (89), 18 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:26,815 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 310 transitions. [2022-11-22 01:56:26,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 01:56:26,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:26,816 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:26,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:56:27,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-22 01:56:27,025 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:56:27,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:27,025 INFO L85 PathProgramCache]: Analyzing trace with hash -100268175, now seen corresponding path program 1 times [2022-11-22 01:56:27,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:27,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264588769] [2022-11-22 01:56:27,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:27,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:27,697 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:27,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:27,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264588769] [2022-11-22 01:56:27,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264588769] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:56:27,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040809541] [2022-11-22 01:56:27,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:27,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:56:27,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:56:27,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:56:27,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:56:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:27,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-22 01:56:27,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:56:27,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:56:27,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:27,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:56:27,974 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:56:27,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-22 01:56:28,011 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:56:28,012 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 [2022-11-22 01:56:28,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:28,069 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:28,335 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 [2022-11-22 01:56:28,338 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 17 treesize of output 9 [2022-11-22 01:56:28,370 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:28,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:56:28,992 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 83 treesize of output 79 [2022-11-22 01:56:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:29,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040809541] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:56:29,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2145357010] [2022-11-22 01:56:29,107 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-22 01:56:29,107 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:56:29,107 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:56:29,107 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:56:29,108 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:56:29,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:56:29,171 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:56:29,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:56:29,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,189 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 [2022-11-22 01:56:29,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,215 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 [2022-11-22 01:56:29,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,228 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 [2022-11-22 01:56:29,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:29,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:29,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,274 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 50 treesize of output 38 [2022-11-22 01:56:29,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,288 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 [2022-11-22 01:56:29,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,298 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 [2022-11-22 01:56:29,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,341 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 54 treesize of output 38 [2022-11-22 01:56:29,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:56:29,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:56:29,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,423 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 38 treesize of output 47 [2022-11-22 01:56:29,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,480 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 01:56:29,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-22 01:56:29,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,501 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 54 treesize of output 40 [2022-11-22 01:56:29,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:56:29,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,578 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:29,600 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-22 01:56:29,601 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-22 01:56:29,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-11-22 01:56:29,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 01:56:29,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,696 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 52 treesize of output 49 [2022-11-22 01:56:29,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,785 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 01:56:29,786 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-22 01:56:29,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-22 01:56:29,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 01:56:29,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:29,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:29,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:29,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:29,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:29,998 INFO L321 Elim1Store]: treesize reduction 79, result has 10.2 percent of original size [2022-11-22 01:56:29,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 494 treesize of output 497 [2022-11-22 01:56:30,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:30,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:30,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:30,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:30,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:30,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:30,032 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:30,033 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:30,059 INFO L321 Elim1Store]: treesize reduction 73, result has 17.0 percent of original size [2022-11-22 01:56:30,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 596 treesize of output 492 [2022-11-22 01:56:30,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:30,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:30,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:30,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:30,121 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-11-22 01:56:30,122 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 740 treesize of output 707 [2022-11-22 01:56:30,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:30,539 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-22 01:56:30,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1426 treesize of output 1403 [2022-11-22 01:56:31,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:31,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:31,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:31,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:31,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:31,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:31,314 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-11-22 01:56:31,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3222 treesize of output 1769 [2022-11-22 01:56:31,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:31,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:31,376 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:31,502 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-11-22 01:56:31,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 3203 treesize of output 2630 [2022-11-22 01:56:31,594 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-22 01:56:31,594 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 3066 treesize of output 2827 [2022-11-22 01:56:32,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:32,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:32,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:32,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:32,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:32,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:32,384 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-11-22 01:56:32,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 3225 treesize of output 1764 [2022-11-22 01:56:32,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:32,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:32,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:32,546 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-11-22 01:56:32,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 3243 treesize of output 2670 [2022-11-22 01:56:32,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:32,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:32,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:32,675 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-11-22 01:56:32,676 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 3212 treesize of output 3004 [2022-11-22 01:56:32,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:32,946 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-22 01:56:32,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3144 treesize of output 3054 [2022-11-22 01:56:35,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:35,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:35,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:35,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:35,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:35,646 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-11-22 01:56:35,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 11524 treesize of output 6264 [2022-11-22 01:56:35,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:35,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:35,773 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:35,938 INFO L321 Elim1Store]: treesize reduction 400, result has 12.3 percent of original size [2022-11-22 01:56:35,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 11505 treesize of output 9491 [2022-11-22 01:56:36,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:36,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:36,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:36,162 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-11-22 01:56:36,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 11381 treesize of output 10603 [2022-11-22 01:56:40,795 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:40,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:56:40,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:40,829 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:56:40,830 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 [2022-11-22 01:56:40,837 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 [2022-11-22 01:56:40,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:56:40,856 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 21 treesize of output 20 [2022-11-22 01:56:40,864 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 15 treesize of output 1 [2022-11-22 01:56:40,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:40,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:40,885 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 36 treesize of output 23 [2022-11-22 01:56:40,921 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:56:40,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:56:40,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-22 01:56:40,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:40,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:40,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:56:40,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 01:56:40,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:56:40,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:40,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:56:41,001 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:41,866 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 01:56:41,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-22 01:56:41,921 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:56:41,922 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 [2022-11-22 01:56:42,046 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:56:42,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 233 treesize of output 220 [2022-11-22 01:56:42,078 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:56:42,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 221 treesize of output 230 [2022-11-22 01:56:42,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:56:42,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:42,286 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 01:56:42,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 330 treesize of output 343 [2022-11-22 01:56:42,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:42,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:42,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 297 [2022-11-22 01:56:42,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:42,349 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 01:56:42,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 324 treesize of output 319 [2022-11-22 01:56:42,730 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:56:42,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:56:42,781 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:56:42,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:56:42,840 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 01:56:42,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:42,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:42,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:42,912 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:56:45,706 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21265#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (or (not (<= 0 (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|))) (not (<= (+ 8 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)))) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-22 01:56:45,706 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:56:45,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:56:45,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 28 [2022-11-22 01:56:45,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816869393] [2022-11-22 01:56:45,707 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:56:45,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-22 01:56:45,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:56:45,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-22 01:56:45,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=220, Invalid=1942, Unknown=0, NotChecked=0, Total=2162 [2022-11-22 01:56:45,709 INFO L87 Difference]: Start difference. First operand 272 states and 310 transitions. Second operand has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:49,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:56:49,795 INFO L93 Difference]: Finished difference Result 856 states and 954 transitions. [2022-11-22 01:56:49,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-11-22 01:56:49,796 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2022-11-22 01:56:49,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:56:49,799 INFO L225 Difference]: With dead ends: 856 [2022-11-22 01:56:49,799 INFO L226 Difference]: Without dead ends: 856 [2022-11-22 01:56:49,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2042 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1039, Invalid=5767, Unknown=0, NotChecked=0, Total=6806 [2022-11-22 01:56:49,801 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 3688 mSDsluCounter, 1327 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3690 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:56:49,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3690 Valid, 1479 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2303 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-22 01:56:49,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2022-11-22 01:56:49,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 288. [2022-11-22 01:56:49,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 195 states have (on average 1.6205128205128205) internal successors, (316), 285 states have internal predecessors, (316), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:56:49,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 330 transitions. [2022-11-22 01:56:49,810 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 330 transitions. Word has length 34 [2022-11-22 01:56:49,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:56:49,811 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 330 transitions. [2022-11-22 01:56:49,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.4285714285714284) internal successors, (96), 29 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:56:49,811 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 330 transitions. [2022-11-22 01:56:49,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-22 01:56:49,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:56:49,812 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:56:49,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-22 01:56:50,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-11-22 01:56:50,018 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:56:50,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:56:50,018 INFO L85 PathProgramCache]: Analyzing trace with hash -767870067, now seen corresponding path program 1 times [2022-11-22 01:56:50,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:56:50,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379063748] [2022-11-22 01:56:50,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:50,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:56:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:50,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:50,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:56:50,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379063748] [2022-11-22 01:56:50,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379063748] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:56:50,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680693946] [2022-11-22 01:56:50,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:56:50,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:56:50,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:56:50,356 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:56:50,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:56:50,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:56:50,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-22 01:56:50,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:56:50,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:50,567 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:50,690 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 [2022-11-22 01:56:50,693 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 [2022-11-22 01:56:50,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:50,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:56:50,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:56:50,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680693946] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:56:50,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1349978398] [2022-11-22 01:56:50,831 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2022-11-22 01:56:50,831 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:56:50,832 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:56:50,832 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:56:50,832 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:56:50,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:50,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:50,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:56:50,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:50,903 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 [2022-11-22 01:56:50,912 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:56:50,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:56:50,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:50,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:50,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:50,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:50,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:50,946 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 [2022-11-22 01:56:50,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:50,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:50,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:50,969 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 [2022-11-22 01:56:50,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:50,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:51,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,007 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 [2022-11-22 01:56:51,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,021 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 50 treesize of output 38 [2022-11-22 01:56:51,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,035 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 [2022-11-22 01:56:51,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,063 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 54 treesize of output 38 [2022-11-22 01:56:51,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:56:51,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:56:51,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,137 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 38 treesize of output 47 [2022-11-22 01:56:51,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,204 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 01:56:51,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-22 01:56:51,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,226 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 54 treesize of output 40 [2022-11-22 01:56:51,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:56:51,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:51,311 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-22 01:56:51,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-22 01:56:51,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-22 01:56:51,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-22 01:56:51,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,417 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 52 treesize of output 49 [2022-11-22 01:56:51,501 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 01:56:51,501 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-22 01:56:51,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 01:56:51,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-22 01:56:51,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:51,647 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:51,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:51,675 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-22 01:56:51,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-11-22 01:56:51,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,712 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:51,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:51,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:51,738 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-11-22 01:56:51,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 621 treesize of output 624 [2022-11-22 01:56:51,758 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:51,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:51,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:51,790 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-22 01:56:51,791 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 639 treesize of output 606 [2022-11-22 01:56:52,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:52,153 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-22 01:56:52,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-11-22 01:56:52,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:52,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:52,659 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:52,660 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:52,739 INFO L321 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2022-11-22 01:56:52,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1462 treesize of output 893 [2022-11-22 01:56:52,801 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2022-11-22 01:56:52,802 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 1438 treesize of output 1341 [2022-11-22 01:56:52,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:52,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:52,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:52,837 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:52,921 INFO L321 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2022-11-22 01:56:52,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 1452 treesize of output 1380 [2022-11-22 01:56:53,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:53,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:53,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:53,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:53,369 INFO L321 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2022-11-22 01:56:53,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 1533 treesize of output 908 [2022-11-22 01:56:53,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:53,622 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-22 01:56:53,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 1532 treesize of output 1506 [2022-11-22 01:56:53,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:53,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:53,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:53,743 INFO L321 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2022-11-22 01:56:53,744 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 1496 treesize of output 1424 [2022-11-22 01:56:53,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:53,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:53,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:53,792 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:53,854 INFO L321 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2022-11-22 01:56:53,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 1499 treesize of output 1401 [2022-11-22 01:56:55,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:55,098 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:55,214 INFO L321 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2022-11-22 01:56:55,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 6103 treesize of output 3625 [2022-11-22 01:56:55,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:55,326 INFO L321 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2022-11-22 01:56:55,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 6064 treesize of output 5648 [2022-11-22 01:56:55,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:55,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:55,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:56:55,517 INFO L321 Elim1Store]: treesize reduction 284, result has 18.2 percent of original size [2022-11-22 01:56:55,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 23 case distinctions, treesize of input 6065 treesize of output 5632 [2022-11-22 01:56:56,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:56,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:56:56,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:56,579 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:56:56,580 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 [2022-11-22 01:56:56,586 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 [2022-11-22 01:56:56,598 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 21 treesize of output 20 [2022-11-22 01:56:56,606 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 15 treesize of output 1 [2022-11-22 01:56:56,613 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 [2022-11-22 01:56:56,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:56,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:56,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:56,659 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-22 01:56:56,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 31 [2022-11-22 01:56:56,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:56,669 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 34 treesize of output 21 [2022-11-22 01:56:56,702 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:56:56,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:56:56,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 01:56:56,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:56:56,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 01:56:56,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:56:56,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:56,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:56:57,034 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 01:56:57,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-22 01:56:57,143 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:56:57,143 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 [2022-11-22 01:56:57,176 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 01:56:57,176 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 1 [2022-11-22 01:56:57,304 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:56:57,305 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 351 treesize of output 360 [2022-11-22 01:56:57,329 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:56:57,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 320 [2022-11-22 01:56:57,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:56:57,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:57,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:56:57,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:57,609 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 01:56:57,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 539 treesize of output 546 [2022-11-22 01:56:57,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:57,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:57,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 514 treesize of output 484 [2022-11-22 01:56:57,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:56:57,678 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 01:56:57,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 527 treesize of output 516 [2022-11-22 01:56:58,385 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:56:58,385 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:56:58,414 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 01:56:58,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:58,449 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 01:56:58,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:58,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 01:56:58,577 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 01:56:58,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:58,607 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 01:56:58,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:56:58,777 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:57:02,340 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22709#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (= |ULTIMATE.start_seq_sort_core_#in~data#1.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) (= |ULTIMATE.start_main_~data~0#1.base| |ULTIMATE.start_seq_sort_core_#in~data#1.base|) (<= 0 |#NULL.base|) (<= |ULTIMATE.start_inspect_before_~shape#1.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (not (= |ULTIMATE.start_seq_sort_core_~data#1.base| 0)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) |ULTIMATE.start_seq_sort_core_~data#1.offset|) |ULTIMATE.start_seq_sort_core_#t~mem18#1.base|) (<= (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 1) (= |ULTIMATE.start_seq_sort_core_#in~data#1.offset| |ULTIMATE.start_main_~data~0#1.offset|) (= |ULTIMATE.start_seq_sort_core_~dst~0#1.base| 0) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (or (not (<= (+ |ULTIMATE.start_seq_sort_core_~next~0#1.offset| 4) (select |#length| |ULTIMATE.start_seq_sort_core_~next~0#1.base|))) (not (<= 0 |ULTIMATE.start_seq_sort_core_~next~0#1.offset|))) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (= (select |#valid| |ULTIMATE.start_main_~data~0#1.base|) 1) (= |ULTIMATE.start_seq_sort_core_#t~mem18#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_seq_sort_core_~data#1.base|) |ULTIMATE.start_seq_sort_core_~data#1.offset|)) (<= (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 8) (select |#length| |ULTIMATE.start_seq_sort_core_~data#1.base|)) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_seq_sort_core_~data#1.base|) (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 4)) |ULTIMATE.start_seq_sort_core_~next~0#1.offset|) (or (not (= |ULTIMATE.start_seq_sort_core_~next~0#1.base| 0)) (not (= |ULTIMATE.start_seq_sort_core_~next~0#1.offset| 0))) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (= |ULTIMATE.start_seq_sort_core_~dst~0#1.offset| 0) (= |ULTIMATE.start_seq_sort_core_~data#1.offset| |ULTIMATE.start_seq_sort_core_#in~data#1.offset|) (<= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (= |ULTIMATE.start_seq_sort_core_~next~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 4))) (<= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|))) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-22 01:57:02,340 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:57:02,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:57:02,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 4] total 9 [2022-11-22 01:57:02,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50138759] [2022-11-22 01:57:02,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:57:02,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:57:02,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:02,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:57:02,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=741, Unknown=0, NotChecked=0, Total=870 [2022-11-22 01:57:02,342 INFO L87 Difference]: Start difference. First operand 288 states and 330 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 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) [2022-11-22 01:57:02,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:02,601 INFO L93 Difference]: Finished difference Result 349 states and 395 transitions. [2022-11-22 01:57:02,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:57:02,602 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 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 34 [2022-11-22 01:57:02,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:02,603 INFO L225 Difference]: With dead ends: 349 [2022-11-22 01:57:02,603 INFO L226 Difference]: Without dead ends: 349 [2022-11-22 01:57:02,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2022-11-22 01:57:02,604 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 98 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:02,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1011 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:57:02,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-11-22 01:57:02,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 303. [2022-11-22 01:57:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 210 states have (on average 1.5761904761904761) internal successors, (331), 300 states have internal predecessors, (331), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:57:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 345 transitions. [2022-11-22 01:57:02,610 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 345 transitions. Word has length 34 [2022-11-22 01:57:02,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:02,611 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 345 transitions. [2022-11-22 01:57:02,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 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) [2022-11-22 01:57:02,611 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 345 transitions. [2022-11-22 01:57:02,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-22 01:57:02,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:02,612 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:02,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:57:02,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:02,819 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:57:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:02,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1583015888, now seen corresponding path program 1 times [2022-11-22 01:57:02,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:02,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264362237] [2022-11-22 01:57:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:02,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:03,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:03,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:03,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264362237] [2022-11-22 01:57:03,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264362237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:03,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:03,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-22 01:57:03,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461181876] [2022-11-22 01:57:03,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:03,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-22 01:57:03,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:03,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-22 01:57:03,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:57:03,323 INFO L87 Difference]: Start difference. First operand 303 states and 345 transitions. Second operand has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:03,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:03,894 INFO L93 Difference]: Finished difference Result 458 states and 508 transitions. [2022-11-22 01:57:03,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:57:03,896 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-11-22 01:57:03,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:03,899 INFO L225 Difference]: With dead ends: 458 [2022-11-22 01:57:03,899 INFO L226 Difference]: Without dead ends: 458 [2022-11-22 01:57:03,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=233, Unknown=0, NotChecked=0, Total=342 [2022-11-22 01:57:03,899 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 586 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:03,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 1357 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:57:03,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-11-22 01:57:03,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 312. [2022-11-22 01:57:03,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 219 states have (on average 1.5570776255707763) internal successors, (341), 309 states have internal predecessors, (341), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:57:03,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 355 transitions. [2022-11-22 01:57:03,906 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 355 transitions. Word has length 36 [2022-11-22 01:57:03,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:03,907 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 355 transitions. [2022-11-22 01:57:03,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:03,907 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 355 transitions. [2022-11-22 01:57:03,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 01:57:03,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:03,908 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:03,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-22 01:57:03,908 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:57:03,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:03,909 INFO L85 PathProgramCache]: Analyzing trace with hash -268978756, now seen corresponding path program 1 times [2022-11-22 01:57:03,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:03,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318263298] [2022-11-22 01:57:03,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:03,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-22 01:57:04,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:04,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318263298] [2022-11-22 01:57:04,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318263298] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:57:04,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003619555] [2022-11-22 01:57:04,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:04,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:04,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:57:04,132 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:57:04,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 01:57:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:04,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-22 01:57:04,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:04,427 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 31 treesize of output 19 [2022-11-22 01:57:04,430 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 25 treesize of output 13 [2022-11-22 01:57:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 01:57:04,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:57:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 01:57:04,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003619555] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:57:04,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1668251442] [2022-11-22 01:57:04,553 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2022-11-22 01:57:04,554 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:57:04,554 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:57:04,554 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:57:04,554 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:57:04,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:57:04,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:57:04,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,612 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 [2022-11-22 01:57:04,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:57:04,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,639 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 [2022-11-22 01:57:04,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,655 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 [2022-11-22 01:57:04,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:57:04,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:57:04,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,700 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 [2022-11-22 01:57:04,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,710 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 [2022-11-22 01:57:04,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,724 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 50 treesize of output 38 [2022-11-22 01:57:04,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,752 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 54 treesize of output 38 [2022-11-22 01:57:04,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:57:04,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,779 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:57:04,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,824 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 38 treesize of output 47 [2022-11-22 01:57:04,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,883 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 01:57:04,884 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-22 01:57:04,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:57:04,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,929 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 54 treesize of output 40 [2022-11-22 01:57:04,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:04,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:04,996 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-22 01:57:04,997 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-22 01:57:05,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 01:57:05,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,038 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 52 treesize of output 49 [2022-11-22 01:57:05,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-22 01:57:05,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,151 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 01:57:05,151 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-22 01:57:05,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 01:57:05,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-22 01:57:05,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:05,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:05,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:05,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:05,311 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-11-22 01:57:05,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 480 treesize of output 442 [2022-11-22 01:57:05,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:05,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:05,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:05,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:05,357 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-11-22 01:57:05,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 618 treesize of output 621 [2022-11-22 01:57:05,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:05,380 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:05,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,414 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-11-22 01:57:05,415 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 726 treesize of output 693 [2022-11-22 01:57:05,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:05,839 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-22 01:57:05,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1398 treesize of output 1383 [2022-11-22 01:57:06,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:06,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:06,385 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:06,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:06,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:06,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:06,475 INFO L321 Elim1Store]: treesize reduction 214, result has 16.7 percent of original size [2022-11-22 01:57:06,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 2541 treesize of output 1444 [2022-11-22 01:57:06,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:06,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:06,515 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:06,642 INFO L321 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2022-11-22 01:57:06,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 2542 treesize of output 2032 [2022-11-22 01:57:06,734 INFO L321 Elim1Store]: treesize reduction 158, result has 13.7 percent of original size [2022-11-22 01:57:06,734 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 2425 treesize of output 2208 [2022-11-22 01:57:08,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:08,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:08,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:08,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:08,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:08,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:08,261 INFO L321 Elim1Store]: treesize reduction 268, result has 11.8 percent of original size [2022-11-22 01:57:08,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 8796 treesize of output 4739 [2022-11-22 01:57:08,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:08,352 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:08,353 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:08,481 INFO L321 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2022-11-22 01:57:08,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 8814 treesize of output 6852 [2022-11-22 01:57:08,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:08,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:08,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:08,674 INFO L321 Elim1Store]: treesize reduction 174, result has 26.0 percent of original size [2022-11-22 01:57:08,675 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 8783 treesize of output 7973 [2022-11-22 01:57:08,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:08,966 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-22 01:57:08,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 8635 treesize of output 8283 [2022-11-22 01:57:15,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:15,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:15,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:15,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:15,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:15,549 INFO L321 Elim1Store]: treesize reduction 270, result has 15.6 percent of original size [2022-11-22 01:57:15,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 30531 treesize of output 16433 [2022-11-22 01:57:15,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:15,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:15,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:16,025 INFO L321 Elim1Store]: treesize reduction 438, result has 11.3 percent of original size [2022-11-22 01:57:16,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 30212 treesize of output 23719 [2022-11-22 01:57:16,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:16,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:16,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:16,446 INFO L321 Elim1Store]: treesize reduction 202, result has 11.0 percent of original size [2022-11-22 01:57:16,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 29788 treesize of output 27204 [2022-11-22 01:57:26,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:57:26,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:57:26,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:57:26,471 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:57:26,472 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 [2022-11-22 01:57:26,493 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:57:26,493 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 [2022-11-22 01:57:26,505 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 [2022-11-22 01:57:26,511 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 21 treesize of output 20 [2022-11-22 01:57:26,519 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 15 treesize of output 1 [2022-11-22 01:57:26,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:26,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:57:26,559 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-22 01:57:26,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-11-22 01:57:26,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:26,569 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 36 treesize of output 23 [2022-11-22 01:57:26,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:57:26,620 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:57:26,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:57:26,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:57:26,649 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 01:57:26,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:57:26,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:57:26,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:57:26,679 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:57:27,489 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 01:57:27,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-22 01:57:27,598 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:57:27,598 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 [2022-11-22 01:57:27,630 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 01:57:27,631 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 1 [2022-11-22 01:57:27,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:57:27,780 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:57:27,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 351 treesize of output 360 [2022-11-22 01:57:27,805 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:57:27,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 320 [2022-11-22 01:57:27,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:27,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:57:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:27,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:27,963 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 414 treesize of output 388 [2022-11-22 01:57:27,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:28,032 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 01:57:28,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 419 treesize of output 430 [2022-11-22 01:57:28,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:28,074 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 01:57:28,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 411 treesize of output 406 [2022-11-22 01:57:28,465 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:57:28,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:57:28,513 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 10 for LOIs [2022-11-22 01:57:28,515 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:57:30,793 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24412#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-22 01:57:30,794 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:57:30,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:57:30,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2022-11-22 01:57:30,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281278884] [2022-11-22 01:57:30,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:57:30,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:57:30,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:30,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:57:30,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=781, Unknown=0, NotChecked=0, Total=930 [2022-11-22 01:57:30,796 INFO L87 Difference]: Start difference. First operand 312 states and 355 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:31,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:31,207 INFO L93 Difference]: Finished difference Result 310 states and 349 transitions. [2022-11-22 01:57:31,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:57:31,208 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-11-22 01:57:31,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:31,209 INFO L225 Difference]: With dead ends: 310 [2022-11-22 01:57:31,209 INFO L226 Difference]: Without dead ends: 310 [2022-11-22 01:57:31,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=193, Invalid=997, Unknown=0, NotChecked=0, Total=1190 [2022-11-22 01:57:31,210 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 1259 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:31,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 368 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:57:31,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2022-11-22 01:57:31,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2022-11-22 01:57:31,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 219 states have (on average 1.538812785388128) internal successors, (337), 307 states have internal predecessors, (337), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:57:31,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 349 transitions. [2022-11-22 01:57:31,216 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 349 transitions. Word has length 38 [2022-11-22 01:57:31,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:31,216 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 349 transitions. [2022-11-22 01:57:31,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:31,217 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 349 transitions. [2022-11-22 01:57:31,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-22 01:57:31,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:31,217 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:31,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:57:31,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:31,424 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:57:31,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash 866023571, now seen corresponding path program 1 times [2022-11-22 01:57:31,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:31,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290747637] [2022-11-22 01:57:31,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:31,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:31,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:31,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:31,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290747637] [2022-11-22 01:57:31,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290747637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:31,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:31,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 01:57:31,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891797360] [2022-11-22 01:57:31,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:31,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:57:31,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:31,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:57:31,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:57:31,639 INFO L87 Difference]: Start difference. First operand 310 states and 349 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:32,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:32,036 INFO L93 Difference]: Finished difference Result 387 states and 422 transitions. [2022-11-22 01:57:32,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 01:57:32,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-11-22 01:57:32,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:32,038 INFO L225 Difference]: With dead ends: 387 [2022-11-22 01:57:32,038 INFO L226 Difference]: Without dead ends: 387 [2022-11-22 01:57:32,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:57:32,039 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 781 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:32,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 803 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:57:32,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2022-11-22 01:57:32,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 310. [2022-11-22 01:57:32,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 219 states have (on average 1.5342465753424657) internal successors, (336), 307 states have internal predecessors, (336), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:57:32,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 348 transitions. [2022-11-22 01:57:32,052 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 348 transitions. Word has length 39 [2022-11-22 01:57:32,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:32,052 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 348 transitions. [2022-11-22 01:57:32,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:32,052 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 348 transitions. [2022-11-22 01:57:32,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-22 01:57:32,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:32,053 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:32,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-22 01:57:32,053 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:57:32,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:32,054 INFO L85 PathProgramCache]: Analyzing trace with hash -543981640, now seen corresponding path program 2 times [2022-11-22 01:57:32,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:32,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514664871] [2022-11-22 01:57:32,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:32,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:32,524 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:57:32,524 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:32,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514664871] [2022-11-22 01:57:32,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514664871] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:57:32,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183863780] [2022-11-22 01:57:32,524 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:57:32,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:32,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:57:32,527 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:57:32,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 01:57:32,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-22 01:57:32,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:57:32,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 21 conjunts are in the unsatisfiable core [2022-11-22 01:57:32,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:32,836 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 19 treesize of output 7 [2022-11-22 01:57:32,839 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 19 treesize of output 7 [2022-11-22 01:57:32,853 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 01:57:32,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:57:32,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183863780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:32,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:57:32,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-11-22 01:57:32,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771171011] [2022-11-22 01:57:32,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:32,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:57:32,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:32,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:57:32,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2022-11-22 01:57:32,855 INFO L87 Difference]: Start difference. First operand 310 states and 348 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:33,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:33,161 INFO L93 Difference]: Finished difference Result 347 states and 386 transitions. [2022-11-22 01:57:33,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:57:33,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 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 40 [2022-11-22 01:57:33,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:33,163 INFO L225 Difference]: With dead ends: 347 [2022-11-22 01:57:33,163 INFO L226 Difference]: Without dead ends: 347 [2022-11-22 01:57:33,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:57:33,164 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 118 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:33,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 780 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:57:33,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-11-22 01:57:33,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 295. [2022-11-22 01:57:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 204 states have (on average 1.5686274509803921) internal successors, (320), 292 states have internal predecessors, (320), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:57:33,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 332 transitions. [2022-11-22 01:57:33,171 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 332 transitions. Word has length 40 [2022-11-22 01:57:33,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:33,171 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 332 transitions. [2022-11-22 01:57:33,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:33,171 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 332 transitions. [2022-11-22 01:57:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-22 01:57:33,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:33,172 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:33,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-22 01:57:33,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:33,378 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:57:33,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:33,379 INFO L85 PathProgramCache]: Analyzing trace with hash -975101704, now seen corresponding path program 1 times [2022-11-22 01:57:33,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:33,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546257193] [2022-11-22 01:57:33,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:33,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:33,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:57:33,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:33,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546257193] [2022-11-22 01:57:33,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546257193] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:33,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:33,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:57:33,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355454167] [2022-11-22 01:57:33,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:33,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:57:33,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:33,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:57:33,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:57:33,546 INFO L87 Difference]: Start difference. First operand 295 states and 332 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:33,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:33,933 INFO L93 Difference]: Finished difference Result 330 states and 367 transitions. [2022-11-22 01:57:33,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:57:33,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 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 41 [2022-11-22 01:57:33,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:33,935 INFO L225 Difference]: With dead ends: 330 [2022-11-22 01:57:33,935 INFO L226 Difference]: Without dead ends: 330 [2022-11-22 01:57:33,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:57:33,936 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 144 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:33,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 787 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:57:33,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-11-22 01:57:33,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 300. [2022-11-22 01:57:33,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 211 states have (on average 1.5355450236966826) internal successors, (324), 297 states have internal predecessors, (324), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:57:33,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 336 transitions. [2022-11-22 01:57:33,942 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 336 transitions. Word has length 41 [2022-11-22 01:57:33,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:33,942 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 336 transitions. [2022-11-22 01:57:33,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:33,943 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 336 transitions. [2022-11-22 01:57:33,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-22 01:57:33,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:33,943 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:33,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-22 01:57:33,944 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:57:33,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:33,944 INFO L85 PathProgramCache]: Analyzing trace with hash -975101703, now seen corresponding path program 1 times [2022-11-22 01:57:33,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:33,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817939516] [2022-11-22 01:57:33,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:33,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:34,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:34,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:34,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817939516] [2022-11-22 01:57:34,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817939516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:57:34,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:57:34,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:57:34,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945774416] [2022-11-22 01:57:34,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:57:34,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:57:34,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:34,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:57:34,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:57:34,266 INFO L87 Difference]: Start difference. First operand 300 states and 336 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:34,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:57:34,899 INFO L93 Difference]: Finished difference Result 380 states and 415 transitions. [2022-11-22 01:57:34,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-22 01:57:34,899 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2022-11-22 01:57:34,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:57:34,901 INFO L225 Difference]: With dead ends: 380 [2022-11-22 01:57:34,901 INFO L226 Difference]: Without dead ends: 380 [2022-11-22 01:57:34,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:57:34,902 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 970 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:57:34,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 810 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:57:34,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2022-11-22 01:57:34,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 303. [2022-11-22 01:57:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 214 states have (on average 1.52803738317757) internal successors, (327), 300 states have internal predecessors, (327), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:57:34,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 339 transitions. [2022-11-22 01:57:34,907 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 339 transitions. Word has length 41 [2022-11-22 01:57:34,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:57:34,907 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 339 transitions. [2022-11-22 01:57:34,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:57:34,907 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 339 transitions. [2022-11-22 01:57:34,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-22 01:57:34,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:57:34,908 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:57:34,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-22 01:57:34,908 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:57:34,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:57:34,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1768846581, now seen corresponding path program 1 times [2022-11-22 01:57:34,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:57:34,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33783764] [2022-11-22 01:57:34,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:34,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:57:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:35,865 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:35,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:57:35,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33783764] [2022-11-22 01:57:35,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33783764] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:57:35,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1933439737] [2022-11-22 01:57:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:57:35,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:57:35,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:57:35,867 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:57:35,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:57:36,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:57:36,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 64 conjunts are in the unsatisfiable core [2022-11-22 01:57:36,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:57:36,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:57:36,162 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 [2022-11-22 01:57:36,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:36,201 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 [2022-11-22 01:57:36,244 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:57:36,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-22 01:57:36,280 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 15 treesize of output 17 [2022-11-22 01:57:36,293 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 15 treesize of output 17 [2022-11-22 01:57:36,346 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:57:36,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 21 [2022-11-22 01:57:36,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-22 01:57:36,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:36,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2022-11-22 01:57:36,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:57:36,696 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 [2022-11-22 01:57:36,985 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:57:36,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 22 [2022-11-22 01:57:36,989 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:36,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:57:37,494 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:57:37,494 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 33 [2022-11-22 01:57:37,863 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:57:37,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 53 [2022-11-22 01:57:37,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 157 treesize of output 139 [2022-11-22 01:57:37,889 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:57:37,889 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 141 treesize of output 119 [2022-11-22 01:57:37,897 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 99 treesize of output 93 [2022-11-22 01:57:38,184 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:57:38,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1933439737] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:57:38,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1367049168] [2022-11-22 01:57:38,187 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2022-11-22 01:57:38,188 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:57:38,188 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:57:38,188 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:57:38,188 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:57:38,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,224 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:57:38,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,240 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 [2022-11-22 01:57:38,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:57:38,255 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:57:38,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:57:38,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,292 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 [2022-11-22 01:57:38,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,305 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 [2022-11-22 01:57:38,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:57:38,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,345 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 50 treesize of output 38 [2022-11-22 01:57:38,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,358 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 [2022-11-22 01:57:38,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,368 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 [2022-11-22 01:57:38,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:57:38,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,407 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 54 treesize of output 38 [2022-11-22 01:57:38,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:57:38,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,465 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 38 treesize of output 47 [2022-11-22 01:57:38,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,536 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 01:57:38,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-22 01:57:38,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,562 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 54 treesize of output 40 [2022-11-22 01:57:38,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:57:38,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:38,652 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-22 01:57:38,653 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-22 01:57:38,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-22 01:57:38,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,696 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 52 treesize of output 49 [2022-11-22 01:57:38,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-22 01:57:38,829 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 01:57:38,829 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-22 01:57:38,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-22 01:57:38,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 01:57:38,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:38,950 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:38,951 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:38,959 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:38,988 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-22 01:57:38,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 483 treesize of output 445 [2022-11-22 01:57:39,006 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:39,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:39,009 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:39,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:39,044 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-22 01:57:39,044 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 627 treesize of output 594 [2022-11-22 01:57:39,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:39,063 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:39,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:39,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:39,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:39,088 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-11-22 01:57:39,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 593 treesize of output 596 [2022-11-22 01:57:39,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:39,421 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-22 01:57:39,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-11-22 01:57:39,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:39,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:39,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:39,873 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:39,968 INFO L321 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2022-11-22 01:57:39,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1572 treesize of output 983 [2022-11-22 01:57:40,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:40,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:40,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:40,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:40,113 INFO L321 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2022-11-22 01:57:40,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 1562 treesize of output 1421 [2022-11-22 01:57:40,193 INFO L321 Elim1Store]: treesize reduction 152, result has 14.1 percent of original size [2022-11-22 01:57:40,194 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 1520 treesize of output 1381 [2022-11-22 01:57:41,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:41,254 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:41,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:41,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:41,366 INFO L321 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2022-11-22 01:57:41,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 5738 treesize of output 3453 [2022-11-22 01:57:41,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:41,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:41,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:41,527 INFO L321 Elim1Store]: treesize reduction 156, result has 23.9 percent of original size [2022-11-22 01:57:41,528 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 5725 treesize of output 5131 [2022-11-22 01:57:41,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:41,840 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-22 01:57:41,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 5625 treesize of output 5377 [2022-11-22 01:57:41,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:41,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:41,978 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:41,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:42,085 INFO L321 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2022-11-22 01:57:42,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 5620 treesize of output 4911 [2022-11-22 01:57:45,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:45,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:45,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:45,325 INFO L321 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2022-11-22 01:57:45,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 13292 treesize of output 7932 [2022-11-22 01:57:45,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:45,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:45,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:45,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:45,613 INFO L321 Elim1Store]: treesize reduction 348, result has 15.3 percent of original size [2022-11-22 01:57:45,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 13170 treesize of output 11600 [2022-11-22 01:57:45,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:45,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:45,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:57:45,863 INFO L321 Elim1Store]: treesize reduction 190, result has 11.6 percent of original size [2022-11-22 01:57:45,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 13029 treesize of output 11795 [2022-11-22 01:57:51,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:57:51,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:57:51,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:57:51,616 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:57:51,617 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 [2022-11-22 01:57:51,640 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:57:51,640 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 [2022-11-22 01:57:51,653 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 15 treesize of output 1 [2022-11-22 01:57:51,660 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 21 treesize of output 20 [2022-11-22 01:57:51,669 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 [2022-11-22 01:57:51,719 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:57:51,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:57:51,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:51,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-22 01:57:51,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:57:51,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:51,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:57:51,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-22 01:57:51,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:57:51,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:57:51,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 01:57:51,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:57:51,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:57:51,811 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:57:52,675 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 01:57:52,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-22 01:57:52,789 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:57:52,790 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 [2022-11-22 01:57:52,821 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 01:57:52,821 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 1 [2022-11-22 01:57:52,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:57:52,959 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:57:52,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 326 [2022-11-22 01:57:52,993 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:57:52,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 335 treesize of output 344 [2022-11-22 01:57:53,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:53,192 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 01:57:53,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 667 treesize of output 656 [2022-11-22 01:57:53,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:53,294 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 01:57:53,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 647 treesize of output 646 [2022-11-22 01:57:53,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:53,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:53,321 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 614 treesize of output 576 [2022-11-22 01:57:53,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 01:57:54,014 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:57:54,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:57:54,119 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:57:54,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:57:54,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:57:54,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:57:54,225 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 49 for LOIs [2022-11-22 01:57:54,237 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:57:58,356 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28213#(and (<= 0 |#NULL.base|) (or (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2| Int)) (and (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2| 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|)))) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-22 01:57:58,356 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:57:58,356 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:57:58,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 39 [2022-11-22 01:57:58,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972686591] [2022-11-22 01:57:58,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:57:58,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-22 01:57:58,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:57:58,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-22 01:57:58,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=3531, Unknown=2, NotChecked=0, Total=3782 [2022-11-22 01:57:58,360 INFO L87 Difference]: Start difference. First operand 303 states and 339 transitions. Second operand has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:13,191 WARN L233 SmtUtils]: Spent 12.16s on a formula simplification. DAG size of input: 62 DAG size of output: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 01:58:15,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:15,391 INFO L93 Difference]: Finished difference Result 586 states and 644 transitions. [2022-11-22 01:58:15,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 01:58:15,391 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-22 01:58:15,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:15,393 INFO L225 Difference]: With dead ends: 586 [2022-11-22 01:58:15,394 INFO L226 Difference]: Without dead ends: 586 [2022-11-22 01:58:15,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1584 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=818, Invalid=5985, Unknown=3, NotChecked=0, Total=6806 [2022-11-22 01:58:15,396 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 3631 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 69 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3633 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 2802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:15,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3633 Valid, 3367 Invalid, 2802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2727 Invalid, 6 Unknown, 0 Unchecked, 2.8s Time] [2022-11-22 01:58:15,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2022-11-22 01:58:15,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 303. [2022-11-22 01:58:15,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 214 states have (on average 1.5233644859813085) internal successors, (326), 300 states have internal predecessors, (326), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:58:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 338 transitions. [2022-11-22 01:58:15,403 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 338 transitions. Word has length 44 [2022-11-22 01:58:15,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:15,403 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 338 transitions. [2022-11-22 01:58:15,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.051282051282051) internal successors, (119), 39 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:15,404 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 338 transitions. [2022-11-22 01:58:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-22 01:58:15,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:15,404 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:15,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:58:15,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-11-22 01:58:15,611 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:58:15,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:15,611 INFO L85 PathProgramCache]: Analyzing trace with hash 99803102, now seen corresponding path program 1 times [2022-11-22 01:58:15,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:15,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374423750] [2022-11-22 01:58:15,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:15,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:16,589 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:58:16,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:16,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374423750] [2022-11-22 01:58:16,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374423750] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:58:16,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318879232] [2022-11-22 01:58:16,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:16,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:58:16,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:58:16,595 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:58:16,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 01:58:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:16,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 69 conjunts are in the unsatisfiable core [2022-11-22 01:58:16,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:16,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:58:16,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:58:16,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:58:16,995 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:58:16,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:58:17,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-22 01:58:17,062 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-22 01:58:17,083 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:58:17,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-22 01:58:17,091 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 16 treesize of output 18 [2022-11-22 01:58:17,099 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 16 treesize of output 18 [2022-11-22 01:58:17,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-22 01:58:17,159 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-22 01:58:17,175 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 [2022-11-22 01:58:17,183 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 26 [2022-11-22 01:58:17,670 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:17,677 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2022-11-22 01:58:17,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 33 [2022-11-22 01:58:17,684 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-22 01:58:17,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 16 [2022-11-22 01:58:17,724 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:58:17,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:58:18,406 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:58:18,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:58:18,416 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:58:18,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:58:21,041 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:58:21,041 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 25 treesize of output 26 [2022-11-22 01:58:21,047 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 140 treesize of output 122 [2022-11-22 01:58:21,056 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 59 treesize of output 51 [2022-11-22 01:58:21,069 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:58:21,069 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 116 treesize of output 106 [2022-11-22 01:58:21,186 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:58:21,186 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 25 treesize of output 26 [2022-11-22 01:58:21,196 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 140 treesize of output 122 [2022-11-22 01:58:21,204 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 118 treesize of output 110 [2022-11-22 01:58:21,217 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:58:21,218 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 116 treesize of output 106 [2022-11-22 01:58:21,804 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:58:21,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318879232] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:58:21,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [410382336] [2022-11-22 01:58:21,806 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-22 01:58:21,807 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:58:21,807 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:58:21,807 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:58:21,807 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:58:21,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:58:21,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:58:21,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:58:21,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,871 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 [2022-11-22 01:58:21,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:58:21,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:58:21,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,919 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 [2022-11-22 01:58:21,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,934 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 [2022-11-22 01:58:21,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,957 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 [2022-11-22 01:58:21,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,973 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 50 treesize of output 38 [2022-11-22 01:58:21,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:21,988 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 [2022-11-22 01:58:22,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:58:22,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2022-11-22 01:58:22,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:58:22,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,097 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 38 treesize of output 47 [2022-11-22 01:58:22,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,157 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 01:58:22,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-22 01:58:22,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,180 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 54 treesize of output 40 [2022-11-22 01:58:22,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 01:58:22,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:22,271 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-22 01:58:22,271 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-22 01:58:22,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-11-22 01:58:22,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 01:58:22,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,370 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 52 treesize of output 49 [2022-11-22 01:58:22,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,480 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 01:58:22,480 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-22 01:58:22,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 01:58:22,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-22 01:58:22,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:22,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:22,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:22,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:22,659 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-11-22 01:58:22,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 494 treesize of output 456 [2022-11-22 01:58:22,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:22,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:22,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:22,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:22,711 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-11-22 01:58:22,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 638 treesize of output 641 [2022-11-22 01:58:22,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:22,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:22,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:22,777 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-11-22 01:58:22,778 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 752 treesize of output 719 [2022-11-22 01:58:23,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,171 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-22 01:58:23,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1450 treesize of output 1415 [2022-11-22 01:58:23,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:23,645 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:23,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:23,737 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-11-22 01:58:23,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1706 treesize of output 961 [2022-11-22 01:58:23,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:23,770 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:23,910 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-11-22 01:58:23,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 1727 treesize of output 1442 [2022-11-22 01:58:23,972 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-22 01:58:23,973 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 1630 treesize of output 1527 [2022-11-22 01:58:24,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:24,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:24,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:24,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:24,833 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-11-22 01:58:24,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 4587 treesize of output 2492 [2022-11-22 01:58:24,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:24,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:24,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:25,028 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-11-22 01:58:25,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 4605 treesize of output 3740 [2022-11-22 01:58:25,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:25,115 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:25,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:25,184 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-11-22 01:58:25,185 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 4574 treesize of output 4294 [2022-11-22 01:58:25,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:25,482 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-22 01:58:25,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 4506 treesize of output 4316 [2022-11-22 01:58:29,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:29,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:29,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:29,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:29,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:29,470 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-11-22 01:58:29,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 18379 treesize of output 9801 [2022-11-22 01:58:29,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:29,654 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:29,847 INFO L321 Elim1Store]: treesize reduction 416, result has 13.2 percent of original size [2022-11-22 01:58:29,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 18240 treesize of output 14766 [2022-11-22 01:58:30,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:30,084 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:58:30,116 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-11-22 01:58:30,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 17956 treesize of output 16866 [2022-11-22 01:58:34,969 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:58:34,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:58:34,978 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:58:35,004 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:58:35,004 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 [2022-11-22 01:58:35,029 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:58:35,029 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 [2022-11-22 01:58:35,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:58:35,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-22 01:58:35,058 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 15 treesize of output 1 [2022-11-22 01:58:35,102 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:58:35,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:58:35,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:35,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:58:35,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:58:35,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2022-11-22 01:58:35,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:35,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2022-11-22 01:58:35,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:58:35,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 01:58:35,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 01:58:35,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:58:35,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:58:35,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:58:36,017 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 01:58:36,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-22 01:58:36,187 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:58:36,187 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 [2022-11-22 01:58:36,219 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 01:58:36,219 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 1 [2022-11-22 01:58:36,260 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 01:58:36,261 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 1 [2022-11-22 01:58:36,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:58:36,432 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:58:36,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 475 treesize of output 430 [2022-11-22 01:58:36,473 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:58:36,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 447 treesize of output 456 [2022-11-22 01:58:36,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:36,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:58:36,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:36,770 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 01:58:36,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 779 treesize of output 774 [2022-11-22 01:58:36,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:36,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:36,793 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 742 treesize of output 688 [2022-11-22 01:58:36,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:36,847 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 01:58:36,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 755 treesize of output 744 [2022-11-22 01:58:37,583 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:58:37,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:58:37,641 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 01:58:37,641 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:58:37,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 01:58:37,711 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 01:58:37,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 01:58:37,799 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 32 for LOIs [2022-11-22 01:58:37,812 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:58:41,968 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '29462#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) 0) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) 0) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3| 4) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|)))) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-22 01:58:41,969 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:58:41,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:58:41,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 13] total 35 [2022-11-22 01:58:41,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563150482] [2022-11-22 01:58:41,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:58:41,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-22 01:58:41,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:58:41,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-22 01:58:41,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=2682, Unknown=1, NotChecked=0, Total=2862 [2022-11-22 01:58:41,972 INFO L87 Difference]: Start difference. First operand 303 states and 338 transitions. Second operand has 35 states, 35 states have (on average 3.4857142857142858) internal successors, (122), 35 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:49,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:49,393 INFO L93 Difference]: Finished difference Result 647 states and 700 transitions. [2022-11-22 01:58:49,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-22 01:58:49,393 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.4857142857142858) internal successors, (122), 35 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-22 01:58:49,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:49,395 INFO L225 Difference]: With dead ends: 647 [2022-11-22 01:58:49,395 INFO L226 Difference]: Without dead ends: 643 [2022-11-22 01:58:49,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=659, Invalid=6650, Unknown=1, NotChecked=0, Total=7310 [2022-11-22 01:58:49,398 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 4386 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4388 SdHoareTripleChecker+Valid, 4166 SdHoareTripleChecker+Invalid, 3031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:49,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4388 Valid, 4166 Invalid, 3031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-22 01:58:49,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2022-11-22 01:58:49,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 329. [2022-11-22 01:58:49,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 240 states have (on average 1.4708333333333334) internal successors, (353), 326 states have internal predecessors, (353), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:58:49,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 365 transitions. [2022-11-22 01:58:49,406 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 365 transitions. Word has length 44 [2022-11-22 01:58:49,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:49,406 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 365 transitions. [2022-11-22 01:58:49,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.4857142857142858) internal successors, (122), 35 states have internal predecessors, (122), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:49,406 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 365 transitions. [2022-11-22 01:58:49,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-22 01:58:49,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:49,407 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:49,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:58:49,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-11-22 01:58:49,614 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:58:49,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:49,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1904378488, now seen corresponding path program 1 times [2022-11-22 01:58:49,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:49,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10066981] [2022-11-22 01:58:49,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:49,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:49,949 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:58:49,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:49,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10066981] [2022-11-22 01:58:49,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10066981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:49,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:49,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-22 01:58:49,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715216388] [2022-11-22 01:58:49,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:49,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 01:58:49,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:58:49,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 01:58:49,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:58:49,951 INFO L87 Difference]: Start difference. First operand 329 states and 365 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:50,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:50,622 INFO L93 Difference]: Finished difference Result 349 states and 385 transitions. [2022-11-22 01:58:50,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:58:50,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-11-22 01:58:50,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:50,625 INFO L225 Difference]: With dead ends: 349 [2022-11-22 01:58:50,625 INFO L226 Difference]: Without dead ends: 349 [2022-11-22 01:58:50,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:58:50,626 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 140 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:50,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1214 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:58:50,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-11-22 01:58:50,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 328. [2022-11-22 01:58:50,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 239 states have (on average 1.4686192468619246) internal successors, (351), 325 states have internal predecessors, (351), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:58:50,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 363 transitions. [2022-11-22 01:58:50,632 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 363 transitions. Word has length 44 [2022-11-22 01:58:50,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:50,633 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 363 transitions. [2022-11-22 01:58:50,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:50,633 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 363 transitions. [2022-11-22 01:58:50,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-22 01:58:50,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:50,634 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:58:50,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-22 01:58:50,634 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:58:50,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:50,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1000115697, now seen corresponding path program 1 times [2022-11-22 01:58:50,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:50,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434296213] [2022-11-22 01:58:50,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:50,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:50,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:58:51,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:51,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434296213] [2022-11-22 01:58:51,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434296213] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:58:51,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199140663] [2022-11-22 01:58:51,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:51,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:58:51,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:58:51,994 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:58:52,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-22 01:58:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:52,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-22 01:58:52,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:52,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:58:52,289 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:58:52,289 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 [2022-11-22 01:58:52,349 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 [2022-11-22 01:58:52,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:52,419 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 31 treesize of output 26 [2022-11-22 01:58:52,539 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-22 01:58:52,540 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-22 01:58:52,633 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 32 treesize of output 30 [2022-11-22 01:58:52,661 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 32 treesize of output 30 [2022-11-22 01:58:52,712 INFO L321 Elim1Store]: treesize reduction 38, result has 48.6 percent of original size [2022-11-22 01:58:52,712 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 50 [2022-11-22 01:58:52,871 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:58:52,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 62 [2022-11-22 01:58:52,893 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 48 treesize of output 38 [2022-11-22 01:58:53,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:58:53,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:58:53,139 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 99 treesize of output 82 [2022-11-22 01:58:54,956 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 [2022-11-22 01:58:55,892 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-22 01:58:55,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 89 treesize of output 40 [2022-11-22 01:58:55,987 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:58:55,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:58:56,850 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:58:56,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 34 [2022-11-22 01:58:57,349 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:58:57,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 60 [2022-11-22 01:58:57,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 388 treesize of output 356 [2022-11-22 01:58:57,372 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 352 treesize of output 340 [2022-11-22 01:58:57,394 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:58:57,395 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 346 treesize of output 280 [2022-11-22 01:59:02,360 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:02,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199140663] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:59:02,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [613361964] [2022-11-22 01:59:02,363 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2022-11-22 01:59:02,363 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:59:02,363 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:59:02,363 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:59:02,364 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:59:02,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 01:59:02,415 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 11 treesize of output 7 [2022-11-22 01:59:02,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:59:02,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,431 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 [2022-11-22 01:59:02,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,448 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 [2022-11-22 01:59:02,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:59:02,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:59:02,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,501 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 [2022-11-22 01:59:02,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,522 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 [2022-11-22 01:59:02,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,533 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 [2022-11-22 01:59:02,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,548 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 50 treesize of output 38 [2022-11-22 01:59:02,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,574 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 28 treesize of output 30 [2022-11-22 01:59:02,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,588 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 54 treesize of output 38 [2022-11-22 01:59:02,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:59:02,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,647 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 53 treesize of output 56 [2022-11-22 01:59:02,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,709 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-22 01:59:02,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 178 treesize of output 142 [2022-11-22 01:59:02,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 97 [2022-11-22 01:59:02,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,752 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 66 treesize of output 46 [2022-11-22 01:59:02,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,802 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:02,822 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-22 01:59:02,822 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 214 treesize of output 162 [2022-11-22 01:59:02,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,888 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 64 [2022-11-22 01:59:02,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,918 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 100 [2022-11-22 01:59:02,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:02,940 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 52 treesize of output 49 [2022-11-22 01:59:02,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,048 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 01:59:03,048 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-22 01:59:03,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 01:59:03,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-22 01:59:03,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,179 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:03,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:03,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:03,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:03,213 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-11-22 01:59:03,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 494 treesize of output 456 [2022-11-22 01:59:03,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:03,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:03,275 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-22 01:59:03,276 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 638 treesize of output 605 [2022-11-22 01:59:03,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:03,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:03,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:03,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:03,327 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-11-22 01:59:03,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 604 treesize of output 607 [2022-11-22 01:59:03,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:03,732 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-22 01:59:03,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1426 treesize of output 1403 [2022-11-22 01:59:04,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:04,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:04,374 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:04,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:04,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:04,379 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:04,533 INFO L321 Elim1Store]: treesize reduction 214, result has 16.7 percent of original size [2022-11-22 01:59:04,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3502 treesize of output 1989 [2022-11-22 01:59:04,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:04,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:04,589 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:04,737 INFO L321 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2022-11-22 01:59:04,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 3483 treesize of output 2753 [2022-11-22 01:59:04,848 INFO L321 Elim1Store]: treesize reduction 158, result has 13.7 percent of original size [2022-11-22 01:59:04,848 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 3346 treesize of output 3017 [2022-11-22 01:59:06,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:06,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:06,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:06,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:06,088 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:06,089 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:06,318 INFO L321 Elim1Store]: treesize reduction 268, result has 11.8 percent of original size [2022-11-22 01:59:06,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 6570 treesize of output 3663 [2022-11-22 01:59:06,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:06,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:06,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:06,650 INFO L321 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2022-11-22 01:59:06,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 6588 treesize of output 5186 [2022-11-22 01:59:06,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:06,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:06,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:06,904 INFO L321 Elim1Store]: treesize reduction 174, result has 26.0 percent of original size [2022-11-22 01:59:06,905 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 6557 treesize of output 5927 [2022-11-22 01:59:06,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:07,408 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-22 01:59:07,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 6409 treesize of output 6077 [2022-11-22 01:59:12,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:12,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:12,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:12,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:12,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:12,393 INFO L321 Elim1Store]: treesize reduction 270, result has 15.6 percent of original size [2022-11-22 01:59:12,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 22099 treesize of output 12219 [2022-11-22 01:59:12,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:12,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:12,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:12,822 INFO L321 Elim1Store]: treesize reduction 438, result has 11.3 percent of original size [2022-11-22 01:59:12,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 21880 treesize of output 17357 [2022-11-22 01:59:13,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:13,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:13,108 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:13,183 INFO L321 Elim1Store]: treesize reduction 202, result has 11.0 percent of original size [2022-11-22 01:59:13,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 21756 treesize of output 19820 [2022-11-22 01:59:19,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:59:19,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:59:19,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:59:19,786 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 01:59:19,787 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 [2022-11-22 01:59:19,818 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:59:19,818 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 [2022-11-22 01:59:19,832 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 21 treesize of output 20 [2022-11-22 01:59:19,840 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 15 treesize of output 1 [2022-11-22 01:59:19,846 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 [2022-11-22 01:59:19,887 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-22 01:59:19,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-11-22 01:59:19,930 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:59:19,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:59:19,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:19,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-22 01:59:19,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:19,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:59:19,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:59:19,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 01:59:19,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 01:59:19,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 01:59:20,010 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 01:59:20,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:59:20,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 01:59:20,838 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 01:59:20,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-22 01:59:20,894 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:59:20,894 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 [2022-11-22 01:59:21,018 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:59:21,052 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 01:59:21,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 229 treesize of output 238 [2022-11-22 01:59:21,079 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 01:59:21,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 227 treesize of output 214 [2022-11-22 01:59:21,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:21,278 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 01:59:21,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 330 treesize of output 343 [2022-11-22 01:59:21,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:21,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:21,320 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 311 treesize of output 297 [2022-11-22 01:59:21,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:21,415 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 01:59:21,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 324 treesize of output 319 [2022-11-22 01:59:21,657 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:59:21,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:59:21,718 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 01:59:21,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 01:59:21,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:21,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 01:59:21,765 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:59:27,452 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '31532#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (= |ULTIMATE.start_inspect_before_#t~mem29#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (= |ULTIMATE.start_inspect_before_#t~mem29#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (or (not (= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|)) (not (= |ULTIMATE.start_inspect_before_~shape#1.base| 0))) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_#t~mem29#1.base|) 1)) (<= (+ 8 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-22 01:59:27,453 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 01:59:27,453 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:59:27,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 17] total 45 [2022-11-22 01:59:27,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519330324] [2022-11-22 01:59:27,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 01:59:27,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-22 01:59:27,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:59:27,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-22 01:59:27,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=329, Invalid=4499, Unknown=2, NotChecked=0, Total=4830 [2022-11-22 01:59:27,455 INFO L87 Difference]: Start difference. First operand 328 states and 363 transitions. Second operand has 46 states, 45 states have (on average 2.8222222222222224) internal successors, (127), 46 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:59:40,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:40,129 INFO L93 Difference]: Finished difference Result 591 states and 646 transitions. [2022-11-22 01:59:40,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-22 01:59:40,130 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.8222222222222224) internal successors, (127), 46 states have internal predecessors, (127), 0 states have call successors, (0), 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 45 [2022-11-22 01:59:40,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:40,133 INFO L225 Difference]: With dead ends: 591 [2022-11-22 01:59:40,133 INFO L226 Difference]: Without dead ends: 591 [2022-11-22 01:59:40,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2452 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=1092, Invalid=7830, Unknown=8, NotChecked=0, Total=8930 [2022-11-22 01:59:40,136 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 3810 mSDsluCounter, 3461 mSDsCounter, 0 mSdLazyCounter, 3983 mSolverCounterSat, 139 mSolverCounterUnsat, 44 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3812 SdHoareTripleChecker+Valid, 3662 SdHoareTripleChecker+Invalid, 4166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 3983 IncrementalHoareTripleChecker+Invalid, 44 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:40,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3812 Valid, 3662 Invalid, 4166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 3983 Invalid, 44 Unknown, 0 Unchecked, 6.0s Time] [2022-11-22 01:59:40,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2022-11-22 01:59:40,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 329. [2022-11-22 01:59:40,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 240 states have (on average 1.4708333333333334) internal successors, (353), 326 states have internal predecessors, (353), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 01:59:40,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 365 transitions. [2022-11-22 01:59:40,143 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 365 transitions. Word has length 45 [2022-11-22 01:59:40,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:40,143 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 365 transitions. [2022-11-22 01:59:40,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.8222222222222224) internal successors, (127), 46 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:59:40,143 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 365 transitions. [2022-11-22 01:59:40,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-22 01:59:40,144 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:40,144 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:40,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-11-22 01:59:40,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-11-22 01:59:40,350 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 01:59:40,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:40,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1000115698, now seen corresponding path program 1 times [2022-11-22 01:59:40,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:59:40,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700706533] [2022-11-22 01:59:40,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:40,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:59:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:42,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:42,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:59:42,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700706533] [2022-11-22 01:59:42,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700706533] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:59:42,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039119436] [2022-11-22 01:59:42,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:42,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:59:42,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:59:42,366 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:59:42,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:59:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:59:42,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 82 conjunts are in the unsatisfiable core [2022-11-22 01:59:42,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:59:42,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 01:59:42,645 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 01:59:42,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 01:59:42,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:59:42,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:59:42,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 01:59:42,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:42,792 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 40 treesize of output 31 [2022-11-22 01:59:42,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:42,804 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 [2022-11-22 01:59:42,918 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-22 01:59:42,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-22 01:59:42,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 18 [2022-11-22 01:59:43,015 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 41 treesize of output 37 [2022-11-22 01:59:43,044 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 14 treesize of output 16 [2022-11-22 01:59:43,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:59:43,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 18 [2022-11-22 01:59:43,085 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 41 treesize of output 37 [2022-11-22 01:59:43,109 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-22 01:59:43,109 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 20 treesize of output 22 [2022-11-22 01:59:43,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-22 01:59:43,217 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 32 treesize of output 30 [2022-11-22 01:59:43,232 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 14 treesize of output 16 [2022-11-22 01:59:43,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2022-11-22 01:59:43,266 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 26 [2022-11-22 01:59:44,549 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:59:44,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 45 [2022-11-22 01:59:44,560 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-22 01:59:44,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-11-22 01:59:44,640 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:59:44,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:59:45,434 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:59:45,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-22 01:59:45,446 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:59:45,447 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2022-11-22 01:59:45,454 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:59:45,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2022-11-22 01:59:50,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:50,378 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:59:50,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 65 [2022-11-22 01:59:50,391 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 386 treesize of output 374 [2022-11-22 01:59:50,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:50,411 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:59:50,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 370 treesize of output 284 [2022-11-22 01:59:50,426 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 1726 treesize of output 1658 [2022-11-22 01:59:50,455 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 827 treesize of output 795 [2022-11-22 01:59:50,479 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:59:50,480 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 1628 treesize of output 1570 [2022-11-22 01:59:50,501 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 1558 treesize of output 1526 [2022-11-22 01:59:50,527 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:59:50,527 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 1532 treesize of output 1474 [2022-11-22 01:59:58,443 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 01:59:58,451 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:59:58,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 32 [2022-11-22 01:59:58,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 110 [2022-11-22 01:59:58,490 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 01:59:58,491 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 112 treesize of output 110 [2022-11-22 01:59:58,497 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 98 treesize of output 94 [2022-11-22 02:00:10,622 WARN L233 SmtUtils]: Spent 11.38s on a formula simplification. DAG size of input: 148 DAG size of output: 52 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:00:10,648 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 299 treesize of output 293 [2022-11-22 02:00:11,208 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:00:11,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039119436] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:00:11,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [770057967] [2022-11-22 02:00:11,210 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2022-11-22 02:00:11,211 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:00:11,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:00:11,211 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:00:11,211 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:00:11,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:00:11,262 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 [2022-11-22 02:00:11,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,272 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 [2022-11-22 02:00:11,281 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:00:11,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,323 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:00:11,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:00:11,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,357 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 [2022-11-22 02:00:11,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,378 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 [2022-11-22 02:00:11,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,405 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 [2022-11-22 02:00:11,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,415 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 [2022-11-22 02:00:11,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,431 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 50 treesize of output 38 [2022-11-22 02:00:11,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:00:11,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:00:11,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,486 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 54 treesize of output 38 [2022-11-22 02:00:11,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,530 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 38 treesize of output 47 [2022-11-22 02:00:11,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,596 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 02:00:11,597 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-22 02:00:11,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 02:00:11,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,638 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 54 treesize of output 40 [2022-11-22 02:00:11,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:11,699 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-22 02:00:11,699 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-22 02:00:11,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,725 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 52 treesize of output 49 [2022-11-22 02:00:11,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,767 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-22 02:00:11,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 02:00:11,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,890 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 02:00:11,891 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-22 02:00:11,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-22 02:00:11,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:11,949 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 02:00:12,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:12,026 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:12,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,082 INFO L321 Elim1Store]: treesize reduction 62, result has 31.9 percent of original size [2022-11-22 02:00:12,082 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 493 treesize of output 460 [2022-11-22 02:00:12,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:12,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,105 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:12,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:12,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:12,134 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-11-22 02:00:12,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 490 treesize of output 452 [2022-11-22 02:00:12,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:12,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:12,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:12,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:12,191 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-11-22 02:00:12,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 597 treesize of output 600 [2022-11-22 02:00:12,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:12,748 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-22 02:00:12,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1412 treesize of output 1393 [2022-11-22 02:00:13,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:13,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:13,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:13,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:13,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:13,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:13,425 INFO L321 Elim1Store]: treesize reduction 214, result has 16.7 percent of original size [2022-11-22 02:00:13,426 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1778 treesize of output 1025 [2022-11-22 02:00:13,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:13,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:13,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:13,601 INFO L321 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2022-11-22 02:00:13,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 1799 treesize of output 1457 [2022-11-22 02:00:13,695 INFO L321 Elim1Store]: treesize reduction 158, result has 13.7 percent of original size [2022-11-22 02:00:13,696 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 1702 treesize of output 1557 [2022-11-22 02:00:14,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:14,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:14,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:14,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:14,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:14,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:14,903 INFO L321 Elim1Store]: treesize reduction 268, result has 11.8 percent of original size [2022-11-22 02:00:14,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 6469 treesize of output 3590 [2022-11-22 02:00:14,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:14,988 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:14,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:15,135 INFO L321 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2022-11-22 02:00:15,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 24 case distinctions, treesize of input 6487 treesize of output 5085 [2022-11-22 02:00:15,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:15,506 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-22 02:00:15,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 6468 treesize of output 6214 [2022-11-22 02:00:15,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:15,607 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:15,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:15,685 INFO L321 Elim1Store]: treesize reduction 174, result has 26.0 percent of original size [2022-11-22 02:00:15,686 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 6420 treesize of output 5790 [2022-11-22 02:00:21,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:21,061 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:21,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:21,067 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:21,071 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:21,249 INFO L321 Elim1Store]: treesize reduction 270, result has 15.6 percent of original size [2022-11-22 02:00:21,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 26281 treesize of output 14387 [2022-11-22 02:00:21,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:21,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:21,662 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:21,906 INFO L321 Elim1Store]: treesize reduction 438, result has 11.3 percent of original size [2022-11-22 02:00:21,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 26022 treesize of output 20467 [2022-11-22 02:00:22,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:22,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:22,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:00:22,317 INFO L321 Elim1Store]: treesize reduction 202, result has 11.0 percent of original size [2022-11-22 02:00:22,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 25658 treesize of output 23358 [2022-11-22 02:00:31,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 02:00:31,522 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 13 treesize of output 9 [2022-11-22 02:00:31,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:00:31,567 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:00:31,568 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 [2022-11-22 02:00:31,601 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:00:31,602 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 [2022-11-22 02:00:31,619 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 30 treesize of output 23 [2022-11-22 02:00:31,628 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 [2022-11-22 02:00:31,635 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 15 treesize of output 1 [2022-11-22 02:00:31,685 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:00:31,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:00:31,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-22 02:00:31,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:31,704 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2022-11-22 02:00:31,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:31,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:00:31,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:00:31,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 02:00:31,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 02:00:31,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2022-11-22 02:00:31,780 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 19 treesize of output 1 [2022-11-22 02:00:31,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:00:31,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:00:32,614 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 02:00:32,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 146 treesize of output 166 [2022-11-22 02:00:32,687 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:00:32,687 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 [2022-11-22 02:00:32,824 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 02:00:32,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 251 treesize of output 238 [2022-11-22 02:00:32,860 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 02:00:32,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 239 treesize of output 242 [2022-11-22 02:00:32,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:00:32,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:33,073 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 02:00:33,073 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 348 treesize of output 361 [2022-11-22 02:00:33,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:33,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:33,094 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 329 treesize of output 315 [2022-11-22 02:00:33,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:33,145 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 02:00:33,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 342 treesize of output 331 [2022-11-22 02:00:33,352 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:00:33,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:00:33,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:33,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:00:33,415 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:00:39,444 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '32834#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (= |ULTIMATE.start_inspect_before_#t~mem29#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (= |ULTIMATE.start_inspect_before_#t~mem29#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (or (not (<= (+ |ULTIMATE.start_inspect_before_#t~mem29#1.offset| 4) (select |#length| |ULTIMATE.start_inspect_before_#t~mem29#1.base|))) (not (<= 0 |ULTIMATE.start_inspect_before_#t~mem29#1.offset|))) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (or (not (= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|)) (not (= |ULTIMATE.start_inspect_before_~shape#1.base| 0))) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= (+ 8 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-22 02:00:39,444 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:00:39,445 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:00:39,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 14] total 41 [2022-11-22 02:00:39,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628843639] [2022-11-22 02:00:39,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:00:39,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-11-22 02:00:39,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:39,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-11-22 02:00:39,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=4017, Unknown=1, NotChecked=0, Total=4290 [2022-11-22 02:00:39,448 INFO L87 Difference]: Start difference. First operand 329 states and 365 transitions. Second operand has 42 states, 41 states have (on average 3.1951219512195124) internal successors, (131), 42 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:00:54,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:54,522 INFO L93 Difference]: Finished difference Result 713 states and 778 transitions. [2022-11-22 02:00:54,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-22 02:00:54,523 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.1951219512195124) internal successors, (131), 42 states have internal predecessors, (131), 0 states have call successors, (0), 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 45 [2022-11-22 02:00:54,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:54,525 INFO L225 Difference]: With dead ends: 713 [2022-11-22 02:00:54,526 INFO L226 Difference]: Without dead ends: 713 [2022-11-22 02:00:54,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2288 ImplicationChecksByTransitivity, 33.3s TimeCoverageRelationStatistics Valid=1095, Invalid=8024, Unknown=1, NotChecked=0, Total=9120 [2022-11-22 02:00:54,527 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 3600 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 4600 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3600 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 4698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:54,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3600 Valid, 2891 Invalid, 4698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4600 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-22 02:00:54,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2022-11-22 02:00:54,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 329. [2022-11-22 02:00:54,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 240 states have (on average 1.4666666666666666) internal successors, (352), 326 states have internal predecessors, (352), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:00:54,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 364 transitions. [2022-11-22 02:00:54,536 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 364 transitions. Word has length 45 [2022-11-22 02:00:54,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:54,536 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 364 transitions. [2022-11-22 02:00:54,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.1951219512195124) internal successors, (131), 42 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:00:54,536 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 364 transitions. [2022-11-22 02:00:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-22 02:00:54,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:54,537 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:54,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 02:00:54,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:00:54,744 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 02:00:54,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:54,744 INFO L85 PathProgramCache]: Analyzing trace with hash 446931310, now seen corresponding path program 1 times [2022-11-22 02:00:54,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:54,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884516258] [2022-11-22 02:00:54,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:54,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:54,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:00:54,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:54,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884516258] [2022-11-22 02:00:54,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884516258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:00:54,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:00:54,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:00:54,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500676359] [2022-11-22 02:00:54,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:00:54,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:00:54,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:00:54,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:00:54,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:00:54,844 INFO L87 Difference]: Start difference. First operand 329 states and 364 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:00:55,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:00:55,094 INFO L93 Difference]: Finished difference Result 328 states and 361 transitions. [2022-11-22 02:00:55,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:00:55,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-11-22 02:00:55,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:00:55,096 INFO L225 Difference]: With dead ends: 328 [2022-11-22 02:00:55,096 INFO L226 Difference]: Without dead ends: 328 [2022-11-22 02:00:55,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:00:55,097 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 24 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:00:55,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 641 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:00:55,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2022-11-22 02:00:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2022-11-22 02:00:55,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 240 states have (on average 1.4583333333333333) internal successors, (350), 325 states have internal predecessors, (350), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:00:55,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 361 transitions. [2022-11-22 02:00:55,103 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 361 transitions. Word has length 46 [2022-11-22 02:00:55,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:00:55,103 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 361 transitions. [2022-11-22 02:00:55,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:00:55,104 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 361 transitions. [2022-11-22 02:00:55,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-22 02:00:55,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:00:55,105 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:00:55,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-22 02:00:55,105 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 02:00:55,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:00:55,105 INFO L85 PathProgramCache]: Analyzing trace with hash 258826840, now seen corresponding path program 1 times [2022-11-22 02:00:55,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:00:55,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324481453] [2022-11-22 02:00:55,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:55,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:00:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:57,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:00:57,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:00:57,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324481453] [2022-11-22 02:00:57,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324481453] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:00:57,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945126734] [2022-11-22 02:00:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:00:57,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:00:57,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:00:57,282 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:00:57,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-22 02:00:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:00:57,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 100 conjunts are in the unsatisfiable core [2022-11-22 02:00:57,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:00:57,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:00:57,528 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 [2022-11-22 02:00:57,533 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 [2022-11-22 02:00:57,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:57,547 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 [2022-11-22 02:00:57,570 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:00:57,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 02:00:57,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:57,585 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 21 treesize of output 20 [2022-11-22 02:00:57,655 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 [2022-11-22 02:00:57,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-22 02:00:57,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:57,700 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 02:00:57,701 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 61 treesize of output 54 [2022-11-22 02:00:57,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:57,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 48 [2022-11-22 02:00:57,858 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-22 02:00:57,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-22 02:00:57,981 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:00:57,981 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 54 treesize of output 54 [2022-11-22 02:00:57,994 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 25 treesize of output 30 [2022-11-22 02:00:58,036 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:00:58,037 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 54 treesize of output 54 [2022-11-22 02:00:58,062 INFO L321 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2022-11-22 02:00:58,063 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2022-11-22 02:00:58,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-11-22 02:00:58,196 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-22 02:00:58,196 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 58 treesize of output 47 [2022-11-22 02:00:58,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-11-22 02:00:58,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:58,321 INFO L321 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-11-22 02:00:58,321 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 80 treesize of output 64 [2022-11-22 02:00:58,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:00:58,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 46 [2022-11-22 02:00:59,872 INFO L321 Elim1Store]: treesize reduction 97, result has 10.2 percent of original size [2022-11-22 02:00:59,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 14 case distinctions, treesize of input 168 treesize of output 86 [2022-11-22 02:00:59,894 INFO L321 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2022-11-22 02:00:59,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 37 treesize of output 25 [2022-11-22 02:00:59,899 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:00:59,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:01:00,410 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:01:00,410 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2022-11-22 02:01:00,421 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:01:00,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 53 [2022-11-22 02:01:20,264 INFO L321 Elim1Store]: treesize reduction 109, result has 31.4 percent of original size [2022-11-22 02:01:20,264 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 240 treesize of output 253 [2022-11-22 02:01:20,274 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:20,383 INFO L321 Elim1Store]: treesize reduction 95, result has 40.3 percent of original size [2022-11-22 02:01:20,384 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 203 treesize of output 119 [2022-11-22 02:01:20,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:20,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:20,421 INFO L321 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2022-11-22 02:01:20,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 81 [2022-11-22 02:01:20,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:20,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:20,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:20,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:20,494 INFO L321 Elim1Store]: treesize reduction 20, result has 51.2 percent of original size [2022-11-22 02:01:20,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 151 treesize of output 149 [2022-11-22 02:01:20,512 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 36 treesize of output 34 [2022-11-22 02:01:20,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:20,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:20,565 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-22 02:01:20,608 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 42 treesize of output 36 [2022-11-22 02:01:20,665 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:01:20,666 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 150 treesize of output 148 [2022-11-22 02:01:21,127 INFO L321 Elim1Store]: treesize reduction 114, result has 28.3 percent of original size [2022-11-22 02:01:21,127 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 4 case distinctions, treesize of input 192 treesize of output 163 [2022-11-22 02:01:21,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:21,227 INFO L321 Elim1Store]: treesize reduction 119, result has 25.2 percent of original size [2022-11-22 02:01:21,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 118 treesize of output 84 [2022-11-22 02:01:21,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:21,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:21,258 INFO L321 Elim1Store]: treesize reduction 72, result has 5.3 percent of original size [2022-11-22 02:01:21,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 241 treesize of output 200 [2022-11-22 02:01:21,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:21,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:21,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:21,282 INFO L321 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2022-11-22 02:01:21,283 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 93 treesize of output 61 [2022-11-22 02:01:21,304 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:01:21,305 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 54 treesize of output 56 [2022-11-22 02:01:21,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 02:01:25,934 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:01:25,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945126734] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:01:25,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2011177752] [2022-11-22 02:01:25,936 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-22 02:01:25,936 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:01:25,937 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:01:25,937 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:01:25,937 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:01:25,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:25,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:25,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:01:25,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:01:25,999 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:01:26,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,009 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 [2022-11-22 02:01:26,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:01:26,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:01:26,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,060 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 [2022-11-22 02:01:26,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:01:26,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,095 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 50 treesize of output 38 [2022-11-22 02:01:26,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,108 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 [2022-11-22 02:01:26,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,119 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 [2022-11-22 02:01:26,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,142 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:01:26,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,157 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 54 treesize of output 38 [2022-11-22 02:01:26,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:01:26,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,217 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 38 treesize of output 47 [2022-11-22 02:01:26,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,294 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 02:01:26,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-22 02:01:26,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,314 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 54 treesize of output 40 [2022-11-22 02:01:26,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 02:01:26,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:26,404 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-22 02:01:26,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-22 02:01:26,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-22 02:01:26,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,473 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 52 treesize of output 49 [2022-11-22 02:01:26,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-22 02:01:26,585 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 02:01:26,585 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-22 02:01:26,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-22 02:01:26,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 02:01:26,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:26,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:26,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:26,747 INFO L321 Elim1Store]: treesize reduction 77, result has 8.3 percent of original size [2022-11-22 02:01:26,748 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 483 treesize of output 486 [2022-11-22 02:01:26,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,769 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:26,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:26,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:26,798 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-22 02:01:26,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 495 treesize of output 457 [2022-11-22 02:01:26,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:26,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:26,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:26,861 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-22 02:01:26,861 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 639 treesize of output 606 [2022-11-22 02:01:27,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:27,267 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-22 02:01:27,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1230 treesize of output 1211 [2022-11-22 02:01:27,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:27,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:27,713 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:27,718 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:27,882 INFO L321 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2022-11-22 02:01:27,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 1572 treesize of output 983 [2022-11-22 02:01:27,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:27,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:27,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:27,927 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:28,033 INFO L321 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2022-11-22 02:01:28,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 1562 treesize of output 1421 [2022-11-22 02:01:28,132 INFO L321 Elim1Store]: treesize reduction 152, result has 14.1 percent of original size [2022-11-22 02:01:28,132 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 1520 treesize of output 1381 [2022-11-22 02:01:29,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:29,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:29,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:29,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:29,357 INFO L321 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2022-11-22 02:01:29,357 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 5753 treesize of output 3464 [2022-11-22 02:01:29,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:29,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:29,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:29,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:29,544 INFO L321 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2022-11-22 02:01:29,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 5771 treesize of output 5058 [2022-11-22 02:01:29,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:29,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:29,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:29,701 INFO L321 Elim1Store]: treesize reduction 156, result has 23.9 percent of original size [2022-11-22 02:01:29,702 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 5740 treesize of output 5146 [2022-11-22 02:01:29,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:30,016 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-22 02:01:30,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 5640 treesize of output 5386 [2022-11-22 02:01:36,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:36,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:36,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:36,416 INFO L321 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2022-11-22 02:01:36,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 23399 treesize of output 13925 [2022-11-22 02:01:36,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:36,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:36,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:36,925 INFO L321 Elim1Store]: treesize reduction 364, result has 16.1 percent of original size [2022-11-22 02:01:36,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 23193 treesize of output 20371 [2022-11-22 02:01:37,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:37,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:01:37,378 INFO L321 Elim1Store]: treesize reduction 190, result has 11.6 percent of original size [2022-11-22 02:01:37,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 22968 treesize of output 20758 [2022-11-22 02:01:46,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:01:46,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 02:01:46,806 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 13 treesize of output 9 [2022-11-22 02:01:46,835 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:01:46,835 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 [2022-11-22 02:01:46,863 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:01:46,863 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 [2022-11-22 02:01:46,877 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 15 treesize of output 1 [2022-11-22 02:01:46,885 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 [2022-11-22 02:01:46,893 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 30 treesize of output 23 [2022-11-22 02:01:46,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:01:46,947 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-22 02:01:46,947 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-11-22 02:01:46,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:46,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:01:47,007 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:01:47,007 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:01:47,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:47,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2022-11-22 02:01:47,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 02:01:47,051 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2022-11-22 02:01:47,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 02:01:47,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 02:01:47,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:01:47,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:01:48,068 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 02:01:48,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 146 treesize of output 166 [2022-11-22 02:01:48,196 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:01:48,196 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 [2022-11-22 02:01:48,248 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:01:48,248 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 [2022-11-22 02:01:48,294 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:01:48,294 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 [2022-11-22 02:01:48,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:01:48,774 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 02:01:48,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1035 treesize of output 1002 [2022-11-22 02:01:48,821 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 02:01:48,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 991 treesize of output 914 [2022-11-22 02:01:49,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:49,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:01:49,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:49,875 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 02:01:49,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 2653 treesize of output 2582 [2022-11-22 02:01:49,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:49,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:49,934 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 2550 treesize of output 2352 [2022-11-22 02:01:50,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:50,046 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 02:01:50,046 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 2563 treesize of output 2504 [2022-11-22 02:01:53,900 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:01:53,901 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:01:53,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:53,966 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 02:01:53,966 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 02:01:54,200 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:01:54,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2022-11-22 02:01:54,344 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:01:54,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:01:54,433 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 02:01:54,434 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 02:01:54,656 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 02:01:54,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 02:01:54,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:01:54,694 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2022-11-22 02:01:54,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 02:01:54,792 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 02:01:54,912 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:01:54,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:01:55,032 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:01:55,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:01:55,294 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 89 for LOIs [2022-11-22 02:01:55,367 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:02:03,916 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '34947#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (or (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| 0)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)) (not (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0))) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0)))) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4| Int)) (and (= (select |#valid| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 1) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|)) (<= 0 (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) 1) (not (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|)) 0)) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (<= (+ (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|))) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 4)) 0) (not (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_4|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) 0)))) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4|) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_4| 0))))) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-22 02:02:03,916 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:02:03,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:02:03,916 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 16] total 40 [2022-11-22 02:02:03,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538463414] [2022-11-22 02:02:03,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:02:03,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-11-22 02:02:03,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:03,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-11-22 02:02:03,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=287, Invalid=3995, Unknown=8, NotChecked=0, Total=4290 [2022-11-22 02:02:03,919 INFO L87 Difference]: Start difference. First operand 328 states and 361 transitions. Second operand has 40 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:20,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:20,638 INFO L93 Difference]: Finished difference Result 627 states and 675 transitions. [2022-11-22 02:02:20,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-22 02:02:20,638 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-11-22 02:02:20,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:20,640 INFO L225 Difference]: With dead ends: 627 [2022-11-22 02:02:20,640 INFO L226 Difference]: Without dead ends: 627 [2022-11-22 02:02:20,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 97 SyntacticMatches, 4 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2229 ImplicationChecksByTransitivity, 41.1s TimeCoverageRelationStatistics Valid=869, Invalid=7495, Unknown=8, NotChecked=0, Total=8372 [2022-11-22 02:02:20,641 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 3262 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 3196 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3264 SdHoareTripleChecker+Valid, 3590 SdHoareTripleChecker+Invalid, 3262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:20,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3264 Valid, 3590 Invalid, 3262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3196 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2022-11-22 02:02:20,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2022-11-22 02:02:20,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 329. [2022-11-22 02:02:20,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 241 states have (on average 1.4564315352697095) internal successors, (351), 326 states have internal predecessors, (351), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:02:20,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 362 transitions. [2022-11-22 02:02:20,649 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 362 transitions. Word has length 48 [2022-11-22 02:02:20,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:20,649 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 362 transitions. [2022-11-22 02:02:20,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.975) internal successors, (119), 40 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:20,650 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 362 transitions. [2022-11-22 02:02:20,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-22 02:02:20,650 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:20,650 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:20,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-11-22 02:02:20,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2022-11-22 02:02:20,857 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 02:02:20,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:20,857 INFO L85 PathProgramCache]: Analyzing trace with hash 168125297, now seen corresponding path program 1 times [2022-11-22 02:02:20,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:20,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791498925] [2022-11-22 02:02:20,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:20,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:20,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:20,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:20,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:20,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791498925] [2022-11-22 02:02:20,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791498925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:20,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:20,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:02:20,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084939743] [2022-11-22 02:02:20,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:20,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:02:20,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:20,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:02:20,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:02:20,927 INFO L87 Difference]: Start difference. First operand 329 states and 362 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:21,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:21,117 INFO L93 Difference]: Finished difference Result 402 states and 440 transitions. [2022-11-22 02:02:21,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:02:21,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-11-22 02:02:21,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:21,119 INFO L225 Difference]: With dead ends: 402 [2022-11-22 02:02:21,119 INFO L226 Difference]: Without dead ends: 402 [2022-11-22 02:02:21,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:21,119 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 399 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:21,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 300 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 02:02:21,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-11-22 02:02:21,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 330. [2022-11-22 02:02:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 242 states have (on average 1.4545454545454546) internal successors, (352), 327 states have internal predecessors, (352), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:02:21,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 363 transitions. [2022-11-22 02:02:21,126 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 363 transitions. Word has length 49 [2022-11-22 02:02:21,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:21,126 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 363 transitions. [2022-11-22 02:02:21,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:21,126 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 363 transitions. [2022-11-22 02:02:21,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-22 02:02:21,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:21,127 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:21,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-22 02:02:21,127 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 02:02:21,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:21,128 INFO L85 PathProgramCache]: Analyzing trace with hash -556748152, now seen corresponding path program 1 times [2022-11-22 02:02:21,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:21,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295514650] [2022-11-22 02:02:21,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:21,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:22,788 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 23 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:02:22,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:22,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295514650] [2022-11-22 02:02:22,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295514650] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:02:22,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132672656] [2022-11-22 02:02:22,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:22,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:22,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:22,792 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:02:22,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-22 02:02:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:23,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 67 conjunts are in the unsatisfiable core [2022-11-22 02:02:23,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:02:23,065 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:02:23,094 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:02:23,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 02:02:23,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:02:23,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:23,219 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 [2022-11-22 02:02:23,337 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-22 02:02:23,337 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-22 02:02:23,424 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 32 treesize of output 30 [2022-11-22 02:02:23,459 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 32 treesize of output 30 [2022-11-22 02:02:23,538 INFO L321 Elim1Store]: treesize reduction 66, result has 35.3 percent of original size [2022-11-22 02:02:23,539 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 31 treesize of output 53 [2022-11-22 02:02:23,670 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 40 treesize of output 36 [2022-11-22 02:02:23,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:02:23,716 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 47 treesize of output 34 [2022-11-22 02:02:24,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 02:02:25,614 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:02:25,614 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 37 [2022-11-22 02:02:25,719 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:02:25,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:02:26,218 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:02:26,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 02:02:28,468 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:02:28,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 40 [2022-11-22 02:02:28,493 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 186 treesize of output 174 [2022-11-22 02:02:28,502 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 170 treesize of output 166 [2022-11-22 02:02:28,515 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:02:28,515 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 172 treesize of output 170 [2022-11-22 02:02:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 16 refuted. 2 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:02:29,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132672656] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:02:29,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [221451115] [2022-11-22 02:02:29,387 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-22 02:02:29,387 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:02:29,387 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:02:29,388 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:02:29,388 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:02:29,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:02:29,436 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:02:29,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:02:29,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,455 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 [2022-11-22 02:02:29,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,475 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 [2022-11-22 02:02:29,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:02:29,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:02:29,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,516 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 [2022-11-22 02:02:29,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,541 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 50 treesize of output 38 [2022-11-22 02:02:29,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,556 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 [2022-11-22 02:02:29,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,570 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 [2022-11-22 02:02:29,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:02:29,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:02:29,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,644 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 54 treesize of output 38 [2022-11-22 02:02:29,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,692 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 53 treesize of output 56 [2022-11-22 02:02:29,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,755 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-22 02:02:29,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 163 treesize of output 131 [2022-11-22 02:02:29,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,777 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 66 treesize of output 46 [2022-11-22 02:02:29,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 86 [2022-11-22 02:02:29,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:29,877 INFO L321 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2022-11-22 02:02:29,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 177 treesize of output 129 [2022-11-22 02:02:29,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-22 02:02:29,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-11-22 02:02:29,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:29,977 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 52 treesize of output 49 [2022-11-22 02:02:30,066 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 02:02:30,066 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 169 treesize of output 136 [2022-11-22 02:02:30,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-11-22 02:02:30,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 02:02:30,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:30,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:30,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:30,243 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-11-22 02:02:30,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 490 treesize of output 452 [2022-11-22 02:02:30,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:30,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:30,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,312 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-22 02:02:30,313 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 634 treesize of output 601 [2022-11-22 02:02:30,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:30,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:30,340 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:30,371 INFO L321 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2022-11-22 02:02:30,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 600 treesize of output 603 [2022-11-22 02:02:30,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:30,800 INFO L321 Elim1Store]: treesize reduction 296, result has 15.9 percent of original size [2022-11-22 02:02:30,801 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1244 treesize of output 1221 [2022-11-22 02:02:31,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:31,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:31,580 INFO L321 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2022-11-22 02:02:31,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3120 treesize of output 1919 [2022-11-22 02:02:31,704 INFO L321 Elim1Store]: treesize reduction 152, result has 14.1 percent of original size [2022-11-22 02:02:31,704 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 3068 treesize of output 2757 [2022-11-22 02:02:31,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:31,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:31,754 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:31,869 INFO L321 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2022-11-22 02:02:31,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 3082 treesize of output 2713 [2022-11-22 02:02:32,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:32,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:32,740 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:32,853 INFO L321 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2022-11-22 02:02:32,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 3845 treesize of output 2358 [2022-11-22 02:02:32,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:32,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:32,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:32,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:33,042 INFO L321 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2022-11-22 02:02:33,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 3863 treesize of output 3400 [2022-11-22 02:02:33,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:33,378 INFO L321 Elim1Store]: treesize reduction 410, result has 13.7 percent of original size [2022-11-22 02:02:33,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 3844 treesize of output 3650 [2022-11-22 02:02:33,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:33,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:33,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:33,539 INFO L321 Elim1Store]: treesize reduction 156, result has 23.9 percent of original size [2022-11-22 02:02:33,540 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 3796 treesize of output 3438 [2022-11-22 02:02:35,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:35,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:35,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:35,380 INFO L321 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2022-11-22 02:02:35,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 7664 treesize of output 4614 [2022-11-22 02:02:35,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:35,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:35,555 INFO L321 Elim1Store]: treesize reduction 190, result has 11.6 percent of original size [2022-11-22 02:02:35,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 7639 treesize of output 6965 [2022-11-22 02:02:35,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:35,670 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:35,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:02:35,850 INFO L321 Elim1Store]: treesize reduction 364, result has 16.1 percent of original size [2022-11-22 02:02:35,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 7640 treesize of output 6802 [2022-11-22 02:02:38,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 02:02:38,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:02:38,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:02:38,312 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:02:38,313 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 [2022-11-22 02:02:38,354 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:02:38,354 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 [2022-11-22 02:02:38,369 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 15 treesize of output 1 [2022-11-22 02:02:38,380 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 [2022-11-22 02:02:38,388 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 21 treesize of output 20 [2022-11-22 02:02:38,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:02:38,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:38,417 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 34 treesize of output 21 [2022-11-22 02:02:38,470 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-22 02:02:38,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 31 [2022-11-22 02:02:38,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:38,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:02:38,548 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:02:38,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:02:38,568 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 02:02:38,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-22 02:02:38,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 02:02:38,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 02:02:38,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:02:38,621 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:02:39,451 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 02:02:39,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-22 02:02:39,590 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:02:39,590 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 [2022-11-22 02:02:39,645 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:02:39,645 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 [2022-11-22 02:02:39,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:02:39,840 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 02:02:39,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 418 treesize of output 421 [2022-11-22 02:02:39,876 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 02:02:39,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 410 treesize of output 381 [2022-11-22 02:02:40,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:40,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:02:40,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:40,260 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 02:02:40,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 857 treesize of output 850 [2022-11-22 02:02:40,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:40,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:40,289 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 818 treesize of output 768 [2022-11-22 02:02:40,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:40,363 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 02:02:40,364 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 831 treesize of output 814 [2022-11-22 02:02:41,801 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:02:41,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:02:41,860 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 02:02:41,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 02:02:41,892 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 02:02:41,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 02:02:42,305 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 02:02:42,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 02:02:42,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 02:02:42,388 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 02:02:42,440 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 02:02:42,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 02:02:42,502 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 02:02:42,502 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 02:02:42,715 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:02:47,426 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '37061#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (<= (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) |ULTIMATE.start_inspect_before_#t~mem24#1.offset|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_#t~mem24#1.base|) 1)) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_inspect_before_#t~mem24#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-22 02:02:47,426 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:02:47,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:02:47,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 14] total 38 [2022-11-22 02:02:47,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512062452] [2022-11-22 02:02:47,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:02:47,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-22 02:02:47,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:47,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-22 02:02:47,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=2945, Unknown=3, NotChecked=0, Total=3192 [2022-11-22 02:02:47,428 INFO L87 Difference]: Start difference. First operand 330 states and 363 transitions. Second operand has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 39 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:57,330 INFO L93 Difference]: Finished difference Result 562 states and 610 transitions. [2022-11-22 02:02:57,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-22 02:02:57,332 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 39 states have internal predecessors, (127), 0 states have call successors, (0), 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 51 [2022-11-22 02:02:57,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:57,334 INFO L225 Difference]: With dead ends: 562 [2022-11-22 02:02:57,335 INFO L226 Difference]: Without dead ends: 562 [2022-11-22 02:02:57,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 117 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1446 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=756, Invalid=5247, Unknown=3, NotChecked=0, Total=6006 [2022-11-22 02:02:57,335 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 3026 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 2727 mSolverCounterSat, 104 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3028 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 2832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 2727 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:57,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3028 Valid, 2648 Invalid, 2832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 2727 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-22 02:02:57,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-11-22 02:02:57,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 331. [2022-11-22 02:02:57,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 243 states have (on average 1.4567901234567902) internal successors, (354), 328 states have internal predecessors, (354), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:02:57,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 365 transitions. [2022-11-22 02:02:57,342 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 365 transitions. Word has length 51 [2022-11-22 02:02:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:57,343 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 365 transitions. [2022-11-22 02:02:57,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 39 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:57,343 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 365 transitions. [2022-11-22 02:02:57,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-22 02:02:57,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:57,344 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:57,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-11-22 02:02:57,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2022-11-22 02:02:57,551 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 02:02:57,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:57,551 INFO L85 PathProgramCache]: Analyzing trace with hash -556748151, now seen corresponding path program 1 times [2022-11-22 02:02:57,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:57,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284422591] [2022-11-22 02:02:57,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:57,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:02:59,483 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:59,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284422591] [2022-11-22 02:02:59,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284422591] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:02:59,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298562478] [2022-11-22 02:02:59,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:59,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:59,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:59,485 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:02:59,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-22 02:02:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:59,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 83 conjunts are in the unsatisfiable core [2022-11-22 02:02:59,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:02:59,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:02:59,810 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:02:59,810 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 [2022-11-22 02:02:59,841 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:02:59,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 02:02:59,905 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 [2022-11-22 02:02:59,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:02:59,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:59,987 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 [2022-11-22 02:02:59,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:59,995 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 40 treesize of output 31 [2022-11-22 02:03:00,129 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-22 02:03:00,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-22 02:03:00,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 18 [2022-11-22 02:03:00,242 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 41 treesize of output 37 [2022-11-22 02:03:00,265 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 14 treesize of output 16 [2022-11-22 02:03:00,291 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 41 treesize of output 37 [2022-11-22 02:03:00,300 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 14 treesize of output 16 [2022-11-22 02:03:00,329 INFO L321 Elim1Store]: treesize reduction 12, result has 58.6 percent of original size [2022-11-22 02:03:00,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 25 treesize of output 29 [2022-11-22 02:03:00,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 18 [2022-11-22 02:03:00,422 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 32 treesize of output 30 [2022-11-22 02:03:00,436 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 14 treesize of output 16 [2022-11-22 02:03:00,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2022-11-22 02:03:00,459 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 26 [2022-11-22 02:03:01,583 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:01,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 45 [2022-11-22 02:03:01,598 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-22 02:03:01,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-11-22 02:03:01,676 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:03:01,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:03:02,457 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:02,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-11-22 02:03:02,471 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:02,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 35 [2022-11-22 02:03:02,478 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:02,479 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2022-11-22 02:03:05,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:05,996 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:05,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 32 [2022-11-22 02:03:06,002 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 60 treesize of output 52 [2022-11-22 02:03:06,014 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:06,014 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 54 treesize of output 56 [2022-11-22 02:03:06,021 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 22 treesize of output 20 [2022-11-22 02:03:06,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:06,145 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:06,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 65 [2022-11-22 02:03:06,155 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 386 treesize of output 374 [2022-11-22 02:03:06,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:06,175 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:06,175 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 2 case distinctions, treesize of input 370 treesize of output 284 [2022-11-22 02:03:06,188 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 862 treesize of output 826 [2022-11-22 02:03:06,214 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:06,215 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 828 treesize of output 802 [2022-11-22 02:03:06,233 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 403 treesize of output 387 [2022-11-22 02:03:06,256 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:03:06,256 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 780 treesize of output 754 [2022-11-22 02:03:06,271 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 742 treesize of output 726 [2022-11-22 02:03:30,002 WARN L233 SmtUtils]: Spent 21.30s on a formula simplification. DAG size of input: 137 DAG size of output: 46 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:03:30,024 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 1025 treesize of output 1007 [2022-11-22 02:03:32,432 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:03:32,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298562478] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:03:32,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [50373957] [2022-11-22 02:03:32,435 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2022-11-22 02:03:32,435 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:03:32,436 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:03:32,436 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:03:32,436 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:03:32,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:03:32,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,487 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 [2022-11-22 02:03:32,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:32,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:03:32,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:03:32,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:03:32,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,546 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 [2022-11-22 02:03:32,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,566 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 [2022-11-22 02:03:32,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,587 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 [2022-11-22 02:03:32,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,598 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 [2022-11-22 02:03:32,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,615 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 50 treesize of output 38 [2022-11-22 02:03:32,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:03:32,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:03:32,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,677 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 54 treesize of output 38 [2022-11-22 02:03:32,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,723 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 38 treesize of output 47 [2022-11-22 02:03:32,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,799 INFO L321 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-11-22 02:03:32,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 163 treesize of output 131 [2022-11-22 02:03:32,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,824 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 66 treesize of output 46 [2022-11-22 02:03:32,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 86 [2022-11-22 02:03:32,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:32,927 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-22 02:03:32,927 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-22 02:03:32,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 02:03:32,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:32,981 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 52 treesize of output 49 [2022-11-22 02:03:33,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 55 [2022-11-22 02:03:33,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,181 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 02:03:33,181 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-22 02:03:33,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,221 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-22 02:03:33,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 02:03:33,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:33,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:33,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:33,360 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:33,391 INFO L321 Elim1Store]: treesize reduction 79, result has 10.2 percent of original size [2022-11-22 02:03:33,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 487 treesize of output 490 [2022-11-22 02:03:33,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:33,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:33,469 INFO L321 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2022-11-22 02:03:33,469 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 595 treesize of output 562 [2022-11-22 02:03:33,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:33,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,493 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:33,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:33,494 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:33,527 INFO L321 Elim1Store]: treesize reduction 73, result has 17.0 percent of original size [2022-11-22 02:03:33,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 592 treesize of output 488 [2022-11-22 02:03:33,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:33,891 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-22 02:03:33,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1412 treesize of output 1393 [2022-11-22 02:03:34,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:34,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:34,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:34,626 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-11-22 02:03:34,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 2421 treesize of output 1344 [2022-11-22 02:03:34,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:34,674 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:34,831 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-11-22 02:03:34,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 2422 treesize of output 2005 [2022-11-22 02:03:34,917 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-22 02:03:34,918 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 2305 treesize of output 2154 [2022-11-22 02:03:36,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:36,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:36,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:36,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:36,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:36,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:36,554 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-11-22 02:03:36,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 6065 treesize of output 3156 [2022-11-22 02:03:36,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:36,640 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:36,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:36,775 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-11-22 02:03:36,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 6083 treesize of output 4878 [2022-11-22 02:03:36,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:37,172 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-22 02:03:37,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 6064 treesize of output 5808 [2022-11-22 02:03:37,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:37,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:37,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:37,361 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-11-22 02:03:37,362 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 5962 treesize of output 5650 [2022-11-22 02:03:42,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:42,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:42,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:42,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:42,082 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:42,251 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-11-22 02:03:42,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 18683 treesize of output 9577 [2022-11-22 02:03:42,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:42,454 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:42,700 INFO L321 Elim1Store]: treesize reduction 416, result has 13.2 percent of original size [2022-11-22 02:03:42,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 18464 treesize of output 14848 [2022-11-22 02:03:42,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:42,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:03:43,026 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-11-22 02:03:43,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 18140 treesize of output 17194 [2022-11-22 02:03:50,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:03:50,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:03:50,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 02:03:50,993 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:03:50,993 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 [2022-11-22 02:03:51,002 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 [2022-11-22 02:03:51,015 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 15 treesize of output 1 [2022-11-22 02:03:51,023 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 21 treesize of output 20 [2022-11-22 02:03:51,032 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 [2022-11-22 02:03:51,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:51,047 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 36 treesize of output 23 [2022-11-22 02:03:51,099 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:03:51,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:03:51,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:51,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:03:51,119 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:03:51,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2022-11-22 02:03:51,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 02:03:51,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 02:03:51,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:03:51,180 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 02:03:51,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:03:51,192 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:03:52,006 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 02:03:52,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-22 02:03:52,122 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:03:52,122 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 [2022-11-22 02:03:52,152 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 02:03:52,152 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 1 [2022-11-22 02:03:52,314 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 02:03:52,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 351 treesize of output 360 [2022-11-22 02:03:52,348 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 02:03:52,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 320 [2022-11-22 02:03:52,516 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 11 treesize of output 7 [2022-11-22 02:03:52,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:52,689 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 02:03:52,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 745 treesize of output 744 [2022-11-22 02:03:52,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:52,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:52,717 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 712 treesize of output 662 [2022-11-22 02:03:52,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:52,785 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 02:03:52,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 725 treesize of output 714 [2022-11-22 02:03:53,514 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:03:53,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:03:53,584 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:03:53,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:03:53,664 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 02:03:53,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 02:03:53,692 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 02:03:53,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:03:53,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:03:53,763 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:03:58,637 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '38356#(and (<= 0 |#NULL.base|) (or (not (<= (+ |ULTIMATE.start_inspect_before_#t~mem24#1.offset| 4) (select |#length| |ULTIMATE.start_inspect_before_#t~mem24#1.base|))) (not (<= 0 |ULTIMATE.start_inspect_before_#t~mem24#1.offset|))) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (<= (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) |ULTIMATE.start_inspect_before_#t~mem24#1.offset|) (<= 0 |#NULL.offset|) (= |ULTIMATE.start_inspect_before_#t~mem24#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2022-11-22 02:03:58,637 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:03:58,637 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:03:58,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 13] total 38 [2022-11-22 02:03:58,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699183810] [2022-11-22 02:03:58,638 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:03:58,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-22 02:03:58,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:58,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-22 02:03:58,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=2957, Unknown=2, NotChecked=0, Total=3192 [2022-11-22 02:03:58,639 INFO L87 Difference]: Start difference. First operand 331 states and 365 transitions. Second operand has 39 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 39 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:12,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:12,267 INFO L93 Difference]: Finished difference Result 699 states and 756 transitions. [2022-11-22 02:04:12,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-22 02:04:12,268 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 39 states have internal predecessors, (140), 0 states have call successors, (0), 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 51 [2022-11-22 02:04:12,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:12,271 INFO L225 Difference]: With dead ends: 699 [2022-11-22 02:04:12,271 INFO L226 Difference]: Without dead ends: 699 [2022-11-22 02:04:12,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 118 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1444 ImplicationChecksByTransitivity, 39.2s TimeCoverageRelationStatistics Valid=897, Invalid=5743, Unknown=2, NotChecked=0, Total=6642 [2022-11-22 02:04:12,273 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 4054 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 3892 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4056 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 4004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 3892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:12,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4056 Valid, 2501 Invalid, 4004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 3892 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-22 02:04:12,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2022-11-22 02:04:12,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 331. [2022-11-22 02:04:12,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 243 states have (on average 1.4526748971193415) internal successors, (353), 328 states have internal predecessors, (353), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:04:12,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 364 transitions. [2022-11-22 02:04:12,280 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 364 transitions. Word has length 51 [2022-11-22 02:04:12,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:12,280 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 364 transitions. [2022-11-22 02:04:12,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 3.6842105263157894) internal successors, (140), 39 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:12,281 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 364 transitions. [2022-11-22 02:04:12,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-22 02:04:12,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:12,281 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:12,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-22 02:04:12,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:04:12,482 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr84REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 02:04:12,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:12,482 INFO L85 PathProgramCache]: Analyzing trace with hash 689402232, now seen corresponding path program 1 times [2022-11-22 02:04:12,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:12,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891395976] [2022-11-22 02:04:12,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:12,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:12,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:12,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:12,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891395976] [2022-11-22 02:04:12,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891395976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:12,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:12,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 02:04:12,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589845019] [2022-11-22 02:04:12,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:12,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-22 02:04:12,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:12,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-22 02:04:12,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:04:12,849 INFO L87 Difference]: Start difference. First operand 331 states and 364 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:14,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:14,244 INFO L93 Difference]: Finished difference Result 474 states and 517 transitions. [2022-11-22 02:04:14,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 02:04:14,244 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 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 52 [2022-11-22 02:04:14,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:14,246 INFO L225 Difference]: With dead ends: 474 [2022-11-22 02:04:14,246 INFO L226 Difference]: Without dead ends: 474 [2022-11-22 02:04:14,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=180, Invalid=470, Unknown=0, NotChecked=0, Total=650 [2022-11-22 02:04:14,247 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 1081 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:14,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 799 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-22 02:04:14,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2022-11-22 02:04:14,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 339. [2022-11-22 02:04:14,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 252 states have (on average 1.4404761904761905) internal successors, (363), 336 states have internal predecessors, (363), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:04:14,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 374 transitions. [2022-11-22 02:04:14,257 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 374 transitions. Word has length 52 [2022-11-22 02:04:14,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:14,258 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 374 transitions. [2022-11-22 02:04:14,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 11 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:14,258 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 374 transitions. [2022-11-22 02:04:14,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-22 02:04:14,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:14,259 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:14,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-22 02:04:14,259 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr85REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 02:04:14,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:14,260 INFO L85 PathProgramCache]: Analyzing trace with hash 689402233, now seen corresponding path program 1 times [2022-11-22 02:04:14,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:14,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835361721] [2022-11-22 02:04:14,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:14,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:14,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:14,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835361721] [2022-11-22 02:04:14,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835361721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:14,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:14,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 02:04:14,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323676758] [2022-11-22 02:04:14,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:14,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 02:04:14,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:14,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 02:04:14,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:04:14,605 INFO L87 Difference]: Start difference. First operand 339 states and 374 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:15,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:15,471 INFO L93 Difference]: Finished difference Result 379 states and 408 transitions. [2022-11-22 02:04:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-22 02:04:15,471 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 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 52 [2022-11-22 02:04:15,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:15,473 INFO L225 Difference]: With dead ends: 379 [2022-11-22 02:04:15,474 INFO L226 Difference]: Without dead ends: 379 [2022-11-22 02:04:15,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2022-11-22 02:04:15,474 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 671 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:15,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 881 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 02:04:15,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2022-11-22 02:04:15,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 340. [2022-11-22 02:04:15,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 253 states have (on average 1.434782608695652) internal successors, (363), 337 states have internal predecessors, (363), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:04:15,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 374 transitions. [2022-11-22 02:04:15,481 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 374 transitions. Word has length 52 [2022-11-22 02:04:15,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:15,481 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 374 transitions. [2022-11-22 02:04:15,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:15,482 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 374 transitions. [2022-11-22 02:04:15,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-22 02:04:15,482 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:15,483 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:15,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-22 02:04:15,483 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 02:04:15,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:15,483 INFO L85 PathProgramCache]: Analyzing trace with hash 689404850, now seen corresponding path program 1 times [2022-11-22 02:04:15,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:15,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923588473] [2022-11-22 02:04:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:15,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:04:15,711 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:15,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923588473] [2022-11-22 02:04:15,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923588473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:04:15,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:04:15,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-22 02:04:15,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431380322] [2022-11-22 02:04:15,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:04:15,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:04:15,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:04:15,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:04:15,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-22 02:04:15,713 INFO L87 Difference]: Start difference. First operand 340 states and 374 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:16,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:04:16,229 INFO L93 Difference]: Finished difference Result 386 states and 415 transitions. [2022-11-22 02:04:16,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:04:16,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 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 52 [2022-11-22 02:04:16,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:04:16,231 INFO L225 Difference]: With dead ends: 386 [2022-11-22 02:04:16,231 INFO L226 Difference]: Without dead ends: 386 [2022-11-22 02:04:16,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:04:16,231 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 652 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:04:16,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 694 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 02:04:16,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-11-22 02:04:16,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 342. [2022-11-22 02:04:16,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 255 states have (on average 1.427450980392157) internal successors, (364), 339 states have internal predecessors, (364), 9 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 02:04:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 375 transitions. [2022-11-22 02:04:16,237 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 375 transitions. Word has length 52 [2022-11-22 02:04:16,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:04:16,238 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 375 transitions. [2022-11-22 02:04:16,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:04:16,238 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 375 transitions. [2022-11-22 02:04:16,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-11-22 02:04:16,239 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:04:16,239 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:04:16,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-22 02:04:16,239 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, merge_single_nodeErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 102 more)] === [2022-11-22 02:04:16,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:04:16,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1079650774, now seen corresponding path program 1 times [2022-11-22 02:04:16,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:04:16,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102877007] [2022-11-22 02:04:16,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:16,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:04:16,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:18,750 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:04:18,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:04:18,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102877007] [2022-11-22 02:04:18,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102877007] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:04:18,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411631975] [2022-11-22 02:04:18,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:04:18,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:04:18,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:04:18,753 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:04:18,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1719bdf1-efb5-4fdd-9917-9784e9f97765/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-22 02:04:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:04:19,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 109 conjunts are in the unsatisfiable core [2022-11-22 02:04:19,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:04:19,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-22 02:04:19,040 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 [2022-11-22 02:04:19,045 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 [2022-11-22 02:04:19,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:19,058 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 [2022-11-22 02:04:19,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:19,067 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 [2022-11-22 02:04:19,099 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:04:19,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-22 02:04:19,193 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 [2022-11-22 02:04:19,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-22 02:04:19,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:19,254 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 02:04:19,254 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 61 treesize of output 54 [2022-11-22 02:04:19,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:19,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 48 [2022-11-22 02:04:19,417 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-11-22 02:04:19,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-11-22 02:04:19,530 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:04:19,530 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 62 treesize of output 62 [2022-11-22 02:04:19,536 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 44 treesize of output 45 [2022-11-22 02:04:19,591 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:04:19,591 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 62 treesize of output 62 [2022-11-22 02:04:19,614 INFO L321 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2022-11-22 02:04:19,615 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 20 treesize of output 22 [2022-11-22 02:04:19,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-11-22 02:04:19,732 INFO L321 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-11-22 02:04:19,733 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 53 treesize of output 55 [2022-11-22 02:04:19,741 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 44 treesize of output 45 [2022-11-22 02:04:19,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:19,783 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-22 02:04:19,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 53 [2022-11-22 02:04:19,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 66 [2022-11-22 02:04:21,871 INFO L321 Elim1Store]: treesize reduction 149, result has 28.4 percent of original size [2022-11-22 02:04:21,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 20 case distinctions, treesize of input 170 treesize of output 143 [2022-11-22 02:04:21,917 INFO L321 Elim1Store]: treesize reduction 82, result has 7.9 percent of original size [2022-11-22 02:04:21,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 8 case distinctions, treesize of input 100 treesize of output 67 [2022-11-22 02:04:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:04:21,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:04:23,105 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:04:23,105 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 110 [2022-11-22 02:04:23,117 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:04:23,117 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 90 [2022-11-22 02:04:44,239 INFO L321 Elim1Store]: treesize reduction 125, result has 31.7 percent of original size [2022-11-22 02:04:44,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 220 treesize of output 195 [2022-11-22 02:04:44,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:44,428 INFO L321 Elim1Store]: treesize reduction 109, result has 40.4 percent of original size [2022-11-22 02:04:44,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 179 treesize of output 129 [2022-11-22 02:04:44,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:44,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:44,586 INFO L321 Elim1Store]: treesize reduction 35, result has 55.1 percent of original size [2022-11-22 02:04:44,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 157 treesize of output 169 [2022-11-22 02:04:44,634 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:04:44,635 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 129 treesize of output 131 [2022-11-22 02:04:44,658 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 60 treesize of output 58 [2022-11-22 02:04:44,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:44,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:44,880 INFO L321 Elim1Store]: treesize reduction 49, result has 53.8 percent of original size [2022-11-22 02:04:44,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 343 treesize of output 277 [2022-11-22 02:04:44,927 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:04:44,927 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 118 treesize of output 120 [2022-11-22 02:04:45,022 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:04:45,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 407 treesize of output 379 [2022-11-22 02:04:49,613 INFO L321 Elim1Store]: treesize reduction 132, result has 27.9 percent of original size [2022-11-22 02:04:49,613 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 220 treesize of output 147 [2022-11-22 02:04:49,626 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:49,810 INFO L321 Elim1Store]: treesize reduction 137, result has 25.1 percent of original size [2022-11-22 02:04:49,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 138 treesize of output 101 [2022-11-22 02:04:49,825 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:49,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:49,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:49,944 INFO L321 Elim1Store]: treesize reduction 61, result has 42.5 percent of original size [2022-11-22 02:04:49,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 462 treesize of output 412 [2022-11-22 02:04:49,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:49,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:50,029 INFO L321 Elim1Store]: treesize reduction 29, result has 37.0 percent of original size [2022-11-22 02:04:50,030 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 310 treesize of output 219 [2022-11-22 02:04:50,067 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:04:50,067 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 176 treesize of output 178 [2022-11-22 02:04:50,147 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:04:50,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 299 treesize of output 311 [2022-11-22 02:04:50,206 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:04:50,206 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 222 treesize of output 190 [2022-11-22 02:04:50,229 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 48 treesize of output 46 [2022-11-22 02:04:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:04:56,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411631975] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:04:56,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1051004365] [2022-11-22 02:04:56,280 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-22 02:04:56,280 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:04:56,281 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:04:56,281 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:04:56,281 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:04:56,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-22 02:04:56,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,342 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 [2022-11-22 02:04:56,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:56,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:04:56,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,389 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 [2022-11-22 02:04:56,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,420 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 [2022-11-22 02:04:56,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:04:56,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:04:56,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,483 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 [2022-11-22 02:04:56,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,501 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 [2022-11-22 02:04:56,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,524 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 50 treesize of output 38 [2022-11-22 02:04:56,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:04:56,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:04:56,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,593 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 54 treesize of output 38 [2022-11-22 02:04:56,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,647 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 38 treesize of output 47 [2022-11-22 02:04:56,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,732 INFO L321 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2022-11-22 02:04:56,733 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 143 treesize of output 111 [2022-11-22 02:04:56,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,760 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 54 treesize of output 40 [2022-11-22 02:04:56,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-11-22 02:04:56,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:56,877 INFO L321 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2022-11-22 02:04:56,877 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 5 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 131 [2022-11-22 02:04:56,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,945 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-11-22 02:04:56,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:56,977 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 52 treesize of output 49 [2022-11-22 02:04:56,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2022-11-22 02:04:57,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,158 INFO L321 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2022-11-22 02:04:57,158 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 5 new quantified variables, introduced 8 case distinctions, treesize of input 171 treesize of output 138 [2022-11-22 02:04:57,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-11-22 02:04:57,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 57 [2022-11-22 02:04:57,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:57,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:57,332 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:57,333 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:57,372 INFO L321 Elim1Store]: treesize reduction 67, result has 11.8 percent of original size [2022-11-22 02:04:57,372 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 494 treesize of output 456 [2022-11-22 02:04:57,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,402 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:57,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:57,403 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:57,404 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:57,444 INFO L321 Elim1Store]: treesize reduction 133, result has 10.1 percent of original size [2022-11-22 02:04:57,445 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 638 treesize of output 641 [2022-11-22 02:04:57,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:57,472 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:57,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,540 INFO L321 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2022-11-22 02:04:57,541 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 752 treesize of output 719 [2022-11-22 02:04:57,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:57,972 INFO L321 Elim1Store]: treesize reduction 338, result has 16.7 percent of original size [2022-11-22 02:04:57,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 19 case distinctions, treesize of input 1450 treesize of output 1415 [2022-11-22 02:04:58,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:58,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:58,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:58,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:58,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:58,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:58,731 INFO L321 Elim1Store]: treesize reduction 122, result has 24.2 percent of original size [2022-11-22 02:04:58,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 3298 treesize of output 1821 [2022-11-22 02:04:58,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:58,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:04:58,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:04:58,984 INFO L321 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2022-11-22 02:04:58,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 3279 treesize of output 2682 [2022-11-22 02:04:59,079 INFO L321 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2022-11-22 02:04:59,080 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 3142 treesize of output 2903 [2022-11-22 02:05:00,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:00,385 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:00,386 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:00,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:00,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:00,390 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:00,564 INFO L321 Elim1Store]: treesize reduction 142, result has 15.0 percent of original size [2022-11-22 02:05:00,564 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 7525 treesize of output 4044 [2022-11-22 02:05:00,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:00,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:00,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:00,804 INFO L321 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2022-11-22 02:05:00,804 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 7512 treesize of output 6984 [2022-11-22 02:05:00,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:00,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:00,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:01,076 INFO L321 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2022-11-22 02:05:01,077 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 23 case distinctions, treesize of input 7426 treesize of output 6029 [2022-11-22 02:05:01,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:01,588 INFO L321 Elim1Store]: treesize reduction 458, result has 14.4 percent of original size [2022-11-22 02:05:01,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 7364 treesize of output 6954 [2022-11-22 02:05:08,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:08,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:08,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:08,349 INFO L321 Elim1Store]: treesize reduction 170, result has 21.3 percent of original size [2022-11-22 02:05:08,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 28703 treesize of output 15295 [2022-11-22 02:05:08,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:08,638 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:08,881 INFO L321 Elim1Store]: treesize reduction 400, result has 12.3 percent of original size [2022-11-22 02:05:08,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 28384 treesize of output 23092 [2022-11-22 02:05:09,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:09,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:09,269 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 02:05:09,349 INFO L321 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2022-11-22 02:05:09,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 28140 treesize of output 26378 [2022-11-22 02:05:15,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:05:15,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:05:15,803 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 [2022-11-22 02:05:15,842 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 02:05:15,843 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 [2022-11-22 02:05:15,888 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:05:15,889 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 [2022-11-22 02:05:15,902 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 15 treesize of output 1 [2022-11-22 02:05:15,910 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 [2022-11-22 02:05:15,920 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 21 treesize of output 20 [2022-11-22 02:05:15,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:15,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:05:15,993 INFO L321 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2022-11-22 02:05:15,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2022-11-22 02:05:16,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:05:16,083 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:05:16,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:05:16,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:16,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-11-22 02:05:16,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 02:05:16,128 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2022-11-22 02:05:16,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-22 02:05:16,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-22 02:05:16,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:05:16,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-22 02:05:17,013 INFO L321 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2022-11-22 02:05:17,013 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 125 treesize of output 145 [2022-11-22 02:05:17,149 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 02:05:17,149 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 [2022-11-22 02:05:17,194 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-11-22 02:05:17,194 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 1 [2022-11-22 02:05:17,341 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-11-22 02:05:17,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 326 [2022-11-22 02:05:17,402 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-11-22 02:05:17,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 335 treesize of output 344 [2022-11-22 02:05:17,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:05:17,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:17,727 INFO L321 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2022-11-22 02:05:17,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 case distinctions, treesize of input 493 treesize of output 500 [2022-11-22 02:05:17,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:17,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:17,752 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 468 treesize of output 442 [2022-11-22 02:05:17,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:17,836 INFO L321 Elim1Store]: treesize reduction 39, result has 30.4 percent of original size [2022-11-22 02:05:17,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 481 treesize of output 476 [2022-11-22 02:05:18,258 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 02:05:18,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-11-22 02:05:18,302 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 02:05:18,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 02:05:18,368 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-22 02:05:18,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 1 [2022-11-22 02:05:18,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:05:18,409 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-11-22 02:05:18,429 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 10 for LOIs [2022-11-22 02:05:18,431 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:05:25,346 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '42165#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2022-11-22 02:05:25,346 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:05:25,346 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:05:25,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 19] total 46 [2022-11-22 02:05:25,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576525106] [2022-11-22 02:05:25,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:05:25,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-11-22 02:05:25,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:05:25,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-11-22 02:05:25,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=320, Invalid=3698, Unknown=14, NotChecked=0, Total=4032 [2022-11-22 02:05:25,348 INFO L87 Difference]: Start difference. First operand 342 states and 375 transitions. Second operand has 46 states, 46 states have (on average 2.782608695652174) internal successors, (128), 46 states have internal predecessors, (128), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:05:35,379 WARN L233 SmtUtils]: Spent 6.74s on a formula simplification. DAG size of input: 156 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:05:52,555 WARN L233 SmtUtils]: Spent 13.79s on a formula simplification. DAG size of input: 190 DAG size of output: 122 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:06:20,850 WARN L233 SmtUtils]: Spent 27.67s on a formula simplification. DAG size of input: 205 DAG size of output: 124 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:06:39,391 WARN L233 SmtUtils]: Spent 17.91s on a formula simplification. DAG size of input: 200 DAG size of output: 126 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:06:55,818 WARN L233 SmtUtils]: Spent 15.98s on a formula simplification. DAG size of input: 206 DAG size of output: 130 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:07:14,378 WARN L233 SmtUtils]: Spent 18.18s on a formula simplification. DAG size of input: 193 DAG size of output: 125 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:07:39,510 WARN L233 SmtUtils]: Spent 23.21s on a formula simplification. DAG size of input: 201 DAG size of output: 133 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:08:12,306 WARN L233 SmtUtils]: Spent 31.23s on a formula simplification. DAG size of input: 205 DAG size of output: 137 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:08:20,570 WARN L233 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 162 DAG size of output: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:08:36,933 WARN L233 SmtUtils]: Spent 10.96s on a formula simplification. DAG size of input: 142 DAG size of output: 139 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:08:38,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:08:41,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-22 02:08:54,640 WARN L233 SmtUtils]: Spent 8.69s on a formula simplification. DAG size of input: 165 DAG size of output: 108 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:09:22,000 WARN L233 SmtUtils]: Spent 23.92s on a formula simplification. DAG size of input: 145 DAG size of output: 142 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:09:24,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0, 1]