./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2bd23b8476745cc5eeb44766af6c01d42c768ef8188ecd9b3f71230eca21db6b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 09:29:40,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:29:40,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:29:40,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:29:40,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:29:40,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:29:40,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:29:40,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:29:40,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:29:40,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:29:40,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:29:40,958 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:29:40,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:29:40,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:29:40,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:29:40,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:29:40,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:29:40,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:29:40,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:29:40,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:29:40,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:29:40,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:29:40,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:29:40,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:29:40,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:29:40,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:29:40,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:29:40,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:29:40,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:29:40,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:29:40,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:29:40,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:29:40,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:29:40,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:29:40,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:29:40,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:29:40,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:29:40,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:29:40,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:29:40,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:29:40,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:29:40,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 09:29:41,005 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:29:41,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:29:41,013 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:29:41,013 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:29:41,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:29:41,014 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:29:41,014 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:29:41,014 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:29:41,015 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:29:41,015 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:29:41,015 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:29:41,015 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:29:41,015 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:29:41,015 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:29:41,015 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:29:41,016 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:29:41,016 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:29:41,016 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:29:41,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 09:29:41,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 09:29:41,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:29:41,017 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:29:41,017 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:29:41,017 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:29:41,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:29:41,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:29:41,018 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 09:29:41,018 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 09:29:41,018 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 09:29:41,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:29:41,019 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 09:29:41,019 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:29:41,019 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:29:41,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:29:41,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:29:41,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:29:41,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:29:41,020 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:29:41,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:29:41,020 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:29:41,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:29:41,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:29:41,021 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_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bd23b8476745cc5eeb44766af6c01d42c768ef8188ecd9b3f71230eca21db6b [2022-12-14 09:29:41,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:29:41,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:29:41,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:29:41,222 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:29:41,222 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:29:41,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i [2022-12-14 09:29:43,778 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:29:43,926 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:29:43,926 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i [2022-12-14 09:29:43,933 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/data/de13b00b9/d2d4642d6f494121a508e7988c5f7a6b/FLAG1e10bab6e [2022-12-14 09:29:43,942 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/data/de13b00b9/d2d4642d6f494121a508e7988c5f7a6b [2022-12-14 09:29:43,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:29:43,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:29:43,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:29:43,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:29:43,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:29:43,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:29:43" (1/1) ... [2022-12-14 09:29:43,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38db19d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:43, skipping insertion in model container [2022-12-14 09:29:43,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:29:43" (1/1) ... [2022-12-14 09:29:43,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:29:43,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:29:44,146 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[22673,22686] [2022-12-14 09:29:44,150 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[22743,22756] [2022-12-14 09:29:44,151 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[22807,22820] [2022-12-14 09:29:44,151 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[22902,22915] [2022-12-14 09:29:44,152 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[22974,22987] [2022-12-14 09:29:44,153 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[23113,23126] [2022-12-14 09:29:44,154 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[23187,23200] [2022-12-14 09:29:44,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:29:44,165 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:29:44,190 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[22673,22686] [2022-12-14 09:29:44,190 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[22743,22756] [2022-12-14 09:29:44,191 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[22807,22820] [2022-12-14 09:29:44,192 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[22902,22915] [2022-12-14 09:29:44,192 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[22974,22987] [2022-12-14 09:29:44,193 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[23113,23126] [2022-12-14 09:29:44,194 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_19a89069-ab43-4e6e-86c3-52565c068ab6/sv-benchmarks/c/forester-heap/dll-rb-sentinel-2.i[23187,23200] [2022-12-14 09:29:44,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:29:44,212 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:29:44,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44 WrapperNode [2022-12-14 09:29:44,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:29:44,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:29:44,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:29:44,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:29:44,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (1/1) ... [2022-12-14 09:29:44,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (1/1) ... [2022-12-14 09:29:44,244 INFO L138 Inliner]: procedures = 119, calls = 44, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 169 [2022-12-14 09:29:44,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:29:44,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:29:44,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:29:44,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:29:44,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (1/1) ... [2022-12-14 09:29:44,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (1/1) ... [2022-12-14 09:29:44,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (1/1) ... [2022-12-14 09:29:44,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (1/1) ... [2022-12-14 09:29:44,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (1/1) ... [2022-12-14 09:29:44,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (1/1) ... [2022-12-14 09:29:44,265 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (1/1) ... [2022-12-14 09:29:44,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (1/1) ... [2022-12-14 09:29:44,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:29:44,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:29:44,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:29:44,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:29:44,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (1/1) ... [2022-12-14 09:29:44,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:29:44,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:29:44,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:29:44,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:29:44,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:29:44,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:29:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:29:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:29:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:29:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:29:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:29:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:29:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:29:44,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:29:44,420 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:29:44,421 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:29:44,763 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:29:44,808 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:29:44,808 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-12-14 09:29:44,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:29:44 BoogieIcfgContainer [2022-12-14 09:29:44,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:29:44,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:29:44,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:29:44,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:29:44,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:29:43" (1/3) ... [2022-12-14 09:29:44,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc36f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:29:44, skipping insertion in model container [2022-12-14 09:29:44,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:29:44" (2/3) ... [2022-12-14 09:29:44,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc36f47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:29:44, skipping insertion in model container [2022-12-14 09:29:44,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:29:44" (3/3) ... [2022-12-14 09:29:44,819 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-rb-sentinel-2.i [2022-12-14 09:29:44,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:29:44,838 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-12-14 09:29:44,876 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:29:44,881 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;@58e20082, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:29:44,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2022-12-14 09:29:44,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 73 states have (on average 2.4794520547945207) internal successors, (181), 153 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:44,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 09:29:44,888 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:44,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 09:29:44,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:44,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:44,893 INFO L85 PathProgramCache]: Analyzing trace with hash 10761, now seen corresponding path program 1 times [2022-12-14 09:29:44,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:44,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351585710] [2022-12-14 09:29:44,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:44,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:44,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:45,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:45,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:45,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351585710] [2022-12-14 09:29:45,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351585710] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:45,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:45,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:29:45,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141527743] [2022-12-14 09:29:45,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:45,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:29:45,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:45,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:29:45,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:45,082 INFO L87 Difference]: Start difference. First operand has 154 states, 73 states have (on average 2.4794520547945207) internal successors, (181), 153 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:45,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:45,234 INFO L93 Difference]: Finished difference Result 179 states and 186 transitions. [2022-12-14 09:29:45,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:29:45,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-12-14 09:29:45,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:45,245 INFO L225 Difference]: With dead ends: 179 [2022-12-14 09:29:45,245 INFO L226 Difference]: Without dead ends: 178 [2022-12-14 09:29:45,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:45,249 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 137 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:45,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 95 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:45,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-12-14 09:29:45,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2022-12-14 09:29:45,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 77 states have (on average 2.103896103896104) internal successors, (162), 153 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 162 transitions. [2022-12-14 09:29:45,283 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 162 transitions. Word has length 2 [2022-12-14 09:29:45,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:45,283 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 162 transitions. [2022-12-14 09:29:45,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:45,283 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 162 transitions. [2022-12-14 09:29:45,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 09:29:45,283 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:45,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 09:29:45,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:29:45,284 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:45,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:45,285 INFO L85 PathProgramCache]: Analyzing trace with hash 10762, now seen corresponding path program 1 times [2022-12-14 09:29:45,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:45,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894282713] [2022-12-14 09:29:45,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:45,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:45,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:45,355 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:45,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894282713] [2022-12-14 09:29:45,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894282713] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:45,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:45,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:29:45,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059895730] [2022-12-14 09:29:45,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:45,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:29:45,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:45,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:29:45,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:45,357 INFO L87 Difference]: Start difference. First operand 154 states and 162 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:45,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:45,455 INFO L93 Difference]: Finished difference Result 150 states and 157 transitions. [2022-12-14 09:29:45,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:29:45,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 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 2 [2022-12-14 09:29:45,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:45,456 INFO L225 Difference]: With dead ends: 150 [2022-12-14 09:29:45,456 INFO L226 Difference]: Without dead ends: 150 [2022-12-14 09:29:45,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:45,457 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 147 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:45,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 75 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:45,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-12-14 09:29:45,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-12-14 09:29:45,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 77 states have (on average 2.038961038961039) internal successors, (157), 149 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:45,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 157 transitions. [2022-12-14 09:29:45,463 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 157 transitions. Word has length 2 [2022-12-14 09:29:45,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:45,463 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 157 transitions. [2022-12-14 09:29:45,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:45,464 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 157 transitions. [2022-12-14 09:29:45,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:29:45,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:45,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:29:45,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:29:45,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:45,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:45,465 INFO L85 PathProgramCache]: Analyzing trace with hash 320566798, now seen corresponding path program 1 times [2022-12-14 09:29:45,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:45,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166018558] [2022-12-14 09:29:45,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:45,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:45,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:45,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:45,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166018558] [2022-12-14 09:29:45,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166018558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:45,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:45,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:29:45,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560277735] [2022-12-14 09:29:45,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:45,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:29:45,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:45,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:29:45,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:45,525 INFO L87 Difference]: Start difference. First operand 150 states and 157 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-12-14 09:29:45,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:45,611 INFO L93 Difference]: Finished difference Result 146 states and 152 transitions. [2022-12-14 09:29:45,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:29:45,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-12-14 09:29:45,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:45,613 INFO L225 Difference]: With dead ends: 146 [2022-12-14 09:29:45,613 INFO L226 Difference]: Without dead ends: 146 [2022-12-14 09:29:45,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:45,614 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 123 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:45,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 85 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:45,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-14 09:29:45,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2022-12-14 09:29:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 78 states have (on average 1.9487179487179487) internal successors, (152), 143 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:45,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 152 transitions. [2022-12-14 09:29:45,618 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 152 transitions. Word has length 5 [2022-12-14 09:29:45,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:45,619 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 152 transitions. [2022-12-14 09:29:45,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-12-14 09:29:45,619 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 152 transitions. [2022-12-14 09:29:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:29:45,619 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:45,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:29:45,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:29:45,619 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:45,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:45,620 INFO L85 PathProgramCache]: Analyzing trace with hash 320566799, now seen corresponding path program 1 times [2022-12-14 09:29:45,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:45,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267036508] [2022-12-14 09:29:45,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:45,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:45,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:45,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267036508] [2022-12-14 09:29:45,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267036508] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:45,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:45,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:29:45,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340346925] [2022-12-14 09:29:45,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:45,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:29:45,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:45,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:29:45,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:45,728 INFO L87 Difference]: Start difference. First operand 144 states and 152 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-12-14 09:29:45,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:45,828 INFO L93 Difference]: Finished difference Result 158 states and 164 transitions. [2022-12-14 09:29:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:29:45,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-12-14 09:29:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:45,829 INFO L225 Difference]: With dead ends: 158 [2022-12-14 09:29:45,829 INFO L226 Difference]: Without dead ends: 158 [2022-12-14 09:29:45,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:29:45,830 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 120 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:45,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 93 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:45,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-12-14 09:29:45,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2022-12-14 09:29:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 83 states have (on average 1.855421686746988) internal successors, (154), 145 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:45,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 154 transitions. [2022-12-14 09:29:45,835 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 154 transitions. Word has length 5 [2022-12-14 09:29:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:45,835 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 154 transitions. [2022-12-14 09:29:45,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-12-14 09:29:45,835 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 154 transitions. [2022-12-14 09:29:45,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 09:29:45,836 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:45,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:45,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:29:45,836 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:45,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:45,836 INFO L85 PathProgramCache]: Analyzing trace with hash 423636449, now seen corresponding path program 1 times [2022-12-14 09:29:45,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:45,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787755031] [2022-12-14 09:29:45,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:45,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:45,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:45,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787755031] [2022-12-14 09:29:45,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787755031] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:45,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:45,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:29:45,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876039715] [2022-12-14 09:29:45,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:45,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:29:45,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:45,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:29:45,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:29:45,946 INFO L87 Difference]: Start difference. First operand 146 states and 154 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:46,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:46,067 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2022-12-14 09:29:46,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:29:46,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 09:29:46,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:46,068 INFO L225 Difference]: With dead ends: 144 [2022-12-14 09:29:46,068 INFO L226 Difference]: Without dead ends: 144 [2022-12-14 09:29:46,068 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 [2022-12-14 09:29:46,069 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 191 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:46,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 72 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:46,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-12-14 09:29:46,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 133. [2022-12-14 09:29:46,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 85 states have (on average 1.6823529411764706) internal successors, (143), 132 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:46,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 143 transitions. [2022-12-14 09:29:46,073 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 143 transitions. Word has length 10 [2022-12-14 09:29:46,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:46,073 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 143 transitions. [2022-12-14 09:29:46,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:46,073 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 143 transitions. [2022-12-14 09:29:46,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 09:29:46,074 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:46,074 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:46,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:29:46,074 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:46,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:46,074 INFO L85 PathProgramCache]: Analyzing trace with hash 423636450, now seen corresponding path program 1 times [2022-12-14 09:29:46,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:46,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774690724] [2022-12-14 09:29:46,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:46,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:46,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:46,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774690724] [2022-12-14 09:29:46,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774690724] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:46,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:46,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:29:46,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090481208] [2022-12-14 09:29:46,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:46,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 09:29:46,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:46,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 09:29:46,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:29:46,239 INFO L87 Difference]: Start difference. First operand 133 states and 143 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:46,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:46,461 INFO L93 Difference]: Finished difference Result 167 states and 177 transitions. [2022-12-14 09:29:46,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:29:46,462 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 09:29:46,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:46,462 INFO L225 Difference]: With dead ends: 167 [2022-12-14 09:29:46,462 INFO L226 Difference]: Without dead ends: 167 [2022-12-14 09:29:46,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:29:46,463 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 285 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:46,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 128 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:29:46,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-12-14 09:29:46,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 141. [2022-12-14 09:29:46,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 94 states have (on average 1.6382978723404256) internal successors, (154), 140 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:46,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 154 transitions. [2022-12-14 09:29:46,467 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 154 transitions. Word has length 10 [2022-12-14 09:29:46,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:46,467 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 154 transitions. [2022-12-14 09:29:46,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:46,468 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 154 transitions. [2022-12-14 09:29:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 09:29:46,468 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:46,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:46,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:29:46,468 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:46,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:46,469 INFO L85 PathProgramCache]: Analyzing trace with hash -906992480, now seen corresponding path program 1 times [2022-12-14 09:29:46,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:46,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074126708] [2022-12-14 09:29:46,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:46,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:46,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:46,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074126708] [2022-12-14 09:29:46,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074126708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:46,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:46,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:29:46,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346132009] [2022-12-14 09:29:46,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:46,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:29:46,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:46,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:29:46,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:29:46,551 INFO L87 Difference]: Start difference. First operand 141 states and 154 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:46,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:46,677 INFO L93 Difference]: Finished difference Result 140 states and 152 transitions. [2022-12-14 09:29:46,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:29:46,678 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2022-12-14 09:29:46,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:46,679 INFO L225 Difference]: With dead ends: 140 [2022-12-14 09:29:46,679 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 09:29:46,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:29:46,680 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 6 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:46,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 295 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:46,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 09:29:46,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2022-12-14 09:29:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 94 states have (on average 1.6170212765957446) internal successors, (152), 139 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:46,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 152 transitions. [2022-12-14 09:29:46,685 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 152 transitions. Word has length 12 [2022-12-14 09:29:46,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:46,686 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 152 transitions. [2022-12-14 09:29:46,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:46,686 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 152 transitions. [2022-12-14 09:29:46,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 09:29:46,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:46,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:46,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:29:46,686 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:46,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:46,687 INFO L85 PathProgramCache]: Analyzing trace with hash -906992479, now seen corresponding path program 1 times [2022-12-14 09:29:46,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:46,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86862016] [2022-12-14 09:29:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:46,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:46,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:46,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86862016] [2022-12-14 09:29:46,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86862016] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:46,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:46,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:29:46,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855198411] [2022-12-14 09:29:46,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:46,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:29:46,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:46,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:29:46,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:29:46,875 INFO L87 Difference]: Start difference. First operand 140 states and 152 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:47,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:47,007 INFO L93 Difference]: Finished difference Result 139 states and 150 transitions. [2022-12-14 09:29:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:29:47,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2022-12-14 09:29:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:47,008 INFO L225 Difference]: With dead ends: 139 [2022-12-14 09:29:47,008 INFO L226 Difference]: Without dead ends: 139 [2022-12-14 09:29:47,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:29:47,008 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 3 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:47,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 284 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:47,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-14 09:29:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-12-14 09:29:47,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 94 states have (on average 1.5957446808510638) internal successors, (150), 138 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:47,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 150 transitions. [2022-12-14 09:29:47,011 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 150 transitions. Word has length 12 [2022-12-14 09:29:47,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:47,012 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 150 transitions. [2022-12-14 09:29:47,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:47,012 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 150 transitions. [2022-12-14 09:29:47,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 09:29:47,012 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:47,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:47,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:29:47,012 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:47,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:47,013 INFO L85 PathProgramCache]: Analyzing trace with hash -907212716, now seen corresponding path program 1 times [2022-12-14 09:29:47,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:47,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000192889] [2022-12-14 09:29:47,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:47,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:47,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:47,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:47,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000192889] [2022-12-14 09:29:47,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000192889] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:47,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:47,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:29:47,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668651585] [2022-12-14 09:29:47,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:47,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:29:47,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:47,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:29:47,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:29:47,066 INFO L87 Difference]: Start difference. First operand 139 states and 150 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:47,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:47,223 INFO L93 Difference]: Finished difference Result 172 states and 182 transitions. [2022-12-14 09:29:47,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:29:47,223 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), 0 states have call successors, (0), 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 12 [2022-12-14 09:29:47,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:47,225 INFO L225 Difference]: With dead ends: 172 [2022-12-14 09:29:47,225 INFO L226 Difference]: Without dead ends: 172 [2022-12-14 09:29:47,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:29:47,226 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 255 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:47,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 127 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:47,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-12-14 09:29:47,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 140. [2022-12-14 09:29:47,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 96 states have (on average 1.5729166666666667) internal successors, (151), 139 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:47,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 151 transitions. [2022-12-14 09:29:47,231 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 151 transitions. Word has length 12 [2022-12-14 09:29:47,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:47,231 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 151 transitions. [2022-12-14 09:29:47,231 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:47,231 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 151 transitions. [2022-12-14 09:29:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:29:47,231 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:47,231 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:47,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:29:47,232 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:47,232 INFO L85 PathProgramCache]: Analyzing trace with hash 258858983, now seen corresponding path program 1 times [2022-12-14 09:29:47,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:47,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170874008] [2022-12-14 09:29:47,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:47,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:47,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:47,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:47,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170874008] [2022-12-14 09:29:47,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170874008] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:47,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:47,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 09:29:47,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181015788] [2022-12-14 09:29:47,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:47,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:29:47,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:47,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:29:47,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:29:47,405 INFO L87 Difference]: Start difference. First operand 140 states and 151 transitions. Second operand has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:47,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:47,620 INFO L93 Difference]: Finished difference Result 139 states and 150 transitions. [2022-12-14 09:29:47,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:29:47,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-12-14 09:29:47,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:47,621 INFO L225 Difference]: With dead ends: 139 [2022-12-14 09:29:47,621 INFO L226 Difference]: Without dead ends: 139 [2022-12-14 09:29:47,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:29:47,621 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 160 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:47,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 187 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:29:47,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-14 09:29:47,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-12-14 09:29:47,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 96 states have (on average 1.5625) internal successors, (150), 138 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 150 transitions. [2022-12-14 09:29:47,624 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 150 transitions. Word has length 14 [2022-12-14 09:29:47,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:47,624 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 150 transitions. [2022-12-14 09:29:47,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.0) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:47,624 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 150 transitions. [2022-12-14 09:29:47,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:29:47,625 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:47,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:47,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:29:47,625 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:47,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:47,625 INFO L85 PathProgramCache]: Analyzing trace with hash 258858984, now seen corresponding path program 1 times [2022-12-14 09:29:47,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:47,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804834345] [2022-12-14 09:29:47,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:47,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:47,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:47,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:47,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804834345] [2022-12-14 09:29:47,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804834345] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:47,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:47,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:29:47,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057347010] [2022-12-14 09:29:47,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:47,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:29:47,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:47,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:29:47,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:29:47,849 INFO L87 Difference]: Start difference. First operand 139 states and 150 transitions. Second operand has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:48,139 INFO L93 Difference]: Finished difference Result 154 states and 166 transitions. [2022-12-14 09:29:48,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 09:29:48,139 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2022-12-14 09:29:48,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:48,140 INFO L225 Difference]: With dead ends: 154 [2022-12-14 09:29:48,140 INFO L226 Difference]: Without dead ends: 154 [2022-12-14 09:29:48,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-12-14 09:29:48,141 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 205 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:48,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 196 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:29:48,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-12-14 09:29:48,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 141. [2022-12-14 09:29:48,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 104 states have (on average 1.4903846153846154) internal successors, (155), 140 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 155 transitions. [2022-12-14 09:29:48,143 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 155 transitions. Word has length 14 [2022-12-14 09:29:48,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:48,143 INFO L495 AbstractCegarLoop]: Abstraction has 141 states and 155 transitions. [2022-12-14 09:29:48,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.75) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,143 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 155 transitions. [2022-12-14 09:29:48,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 09:29:48,144 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:48,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:48,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:29:48,144 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:48,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:48,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1459239985, now seen corresponding path program 1 times [2022-12-14 09:29:48,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:48,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748122444] [2022-12-14 09:29:48,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:48,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:48,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:48,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:48,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748122444] [2022-12-14 09:29:48,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748122444] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:48,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:48,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 09:29:48,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290277240] [2022-12-14 09:29:48,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:48,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:29:48,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:48,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:29:48,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:29:48,263 INFO L87 Difference]: Start difference. First operand 141 states and 155 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:48,482 INFO L93 Difference]: Finished difference Result 193 states and 212 transitions. [2022-12-14 09:29:48,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:29:48,482 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 09:29:48,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:48,483 INFO L225 Difference]: With dead ends: 193 [2022-12-14 09:29:48,483 INFO L226 Difference]: Without dead ends: 193 [2022-12-14 09:29:48,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:29:48,483 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 324 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:48,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 226 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:29:48,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-12-14 09:29:48,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 148. [2022-12-14 09:29:48,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 111 states have (on average 1.4684684684684686) internal successors, (163), 147 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 163 transitions. [2022-12-14 09:29:48,487 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 163 transitions. Word has length 15 [2022-12-14 09:29:48,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:48,488 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 163 transitions. [2022-12-14 09:29:48,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,488 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 163 transitions. [2022-12-14 09:29:48,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 09:29:48,488 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:48,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:48,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:29:48,489 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:48,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:48,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1897501794, now seen corresponding path program 1 times [2022-12-14 09:29:48,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:48,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477164551] [2022-12-14 09:29:48,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:48,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:48,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:48,576 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:48,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477164551] [2022-12-14 09:29:48,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477164551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:48,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:48,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:29:48,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531254883] [2022-12-14 09:29:48,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:48,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:29:48,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:48,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:29:48,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:29:48,578 INFO L87 Difference]: Start difference. First operand 148 states and 163 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:48,647 INFO L93 Difference]: Finished difference Result 146 states and 160 transitions. [2022-12-14 09:29:48,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:29:48,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-14 09:29:48,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:48,649 INFO L225 Difference]: With dead ends: 146 [2022-12-14 09:29:48,649 INFO L226 Difference]: Without dead ends: 146 [2022-12-14 09:29:48,649 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 [2022-12-14 09:29:48,649 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 20 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:48,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 197 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:48,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-12-14 09:29:48,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-12-14 09:29:48,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 110 states have (on average 1.4545454545454546) internal successors, (160), 145 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 160 transitions. [2022-12-14 09:29:48,653 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 160 transitions. Word has length 19 [2022-12-14 09:29:48,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:48,653 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 160 transitions. [2022-12-14 09:29:48,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,654 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 160 transitions. [2022-12-14 09:29:48,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 09:29:48,654 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:48,654 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:48,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:29:48,655 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:48,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:48,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1910415876, now seen corresponding path program 1 times [2022-12-14 09:29:48,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:48,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567528759] [2022-12-14 09:29:48,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:48,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:48,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:48,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:48,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567528759] [2022-12-14 09:29:48,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567528759] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:48,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:48,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:29:48,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120794312] [2022-12-14 09:29:48,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:48,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:29:48,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:48,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:29:48,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:29:48,779 INFO L87 Difference]: Start difference. First operand 146 states and 160 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:48,878 INFO L93 Difference]: Finished difference Result 145 states and 159 transitions. [2022-12-14 09:29:48,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:29:48,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-14 09:29:48,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:48,879 INFO L225 Difference]: With dead ends: 145 [2022-12-14 09:29:48,879 INFO L226 Difference]: Without dead ends: 145 [2022-12-14 09:29:48,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:29:48,880 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 3 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:48,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 263 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:48,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-12-14 09:29:48,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2022-12-14 09:29:48,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 144 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 159 transitions. [2022-12-14 09:29:48,883 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 159 transitions. Word has length 19 [2022-12-14 09:29:48,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:48,883 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 159 transitions. [2022-12-14 09:29:48,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:48,884 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 159 transitions. [2022-12-14 09:29:48,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 09:29:48,884 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:48,884 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:48,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:29:48,885 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:48,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:48,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1910415877, now seen corresponding path program 1 times [2022-12-14 09:29:48,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:48,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084819707] [2022-12-14 09:29:48,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:48,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:49,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:49,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:49,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084819707] [2022-12-14 09:29:49,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084819707] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:49,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:49,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:29:49,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233503462] [2022-12-14 09:29:49,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:49,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:29:49,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:49,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:29:49,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:29:49,037 INFO L87 Difference]: Start difference. First operand 145 states and 159 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:49,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:49,151 INFO L93 Difference]: Finished difference Result 144 states and 158 transitions. [2022-12-14 09:29:49,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:29:49,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-14 09:29:49,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:49,152 INFO L225 Difference]: With dead ends: 144 [2022-12-14 09:29:49,152 INFO L226 Difference]: Without dead ends: 144 [2022-12-14 09:29:49,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 09:29:49,153 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 1 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:49,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 257 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:49,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-12-14 09:29:49,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2022-12-14 09:29:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 110 states have (on average 1.4363636363636363) internal successors, (158), 143 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:49,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 158 transitions. [2022-12-14 09:29:49,157 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 158 transitions. Word has length 19 [2022-12-14 09:29:49,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:49,157 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 158 transitions. [2022-12-14 09:29:49,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:49,157 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 158 transitions. [2022-12-14 09:29:49,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 09:29:49,157 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:49,158 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:49,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:29:49,158 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:49,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:49,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1958872500, now seen corresponding path program 1 times [2022-12-14 09:29:49,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:49,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736019947] [2022-12-14 09:29:49,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:49,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:49,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:49,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:49,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736019947] [2022-12-14 09:29:49,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736019947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:49,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:49,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 09:29:49,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940428374] [2022-12-14 09:29:49,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:49,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:29:49,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:49,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:29:49,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:29:49,367 INFO L87 Difference]: Start difference. First operand 144 states and 158 transitions. Second operand has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:49,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:49,549 INFO L93 Difference]: Finished difference Result 143 states and 157 transitions. [2022-12-14 09:29:49,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:29:49,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-12-14 09:29:49,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:49,550 INFO L225 Difference]: With dead ends: 143 [2022-12-14 09:29:49,550 INFO L226 Difference]: Without dead ends: 143 [2022-12-14 09:29:49,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:29:49,551 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 50 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:49,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 257 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:29:49,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-12-14 09:29:49,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2022-12-14 09:29:49,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 110 states have (on average 1.4272727272727272) internal successors, (157), 142 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:49,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 157 transitions. [2022-12-14 09:29:49,555 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 157 transitions. Word has length 21 [2022-12-14 09:29:49,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:49,555 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 157 transitions. [2022-12-14 09:29:49,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:49,555 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 157 transitions. [2022-12-14 09:29:49,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 09:29:49,555 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:49,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:49,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 09:29:49,556 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:49,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:49,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1958872501, now seen corresponding path program 1 times [2022-12-14 09:29:49,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:49,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879060179] [2022-12-14 09:29:49,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:49,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:49,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:49,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:49,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879060179] [2022-12-14 09:29:49,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879060179] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:49,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:49,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 09:29:49,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790160154] [2022-12-14 09:29:49,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:49,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:29:49,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:49,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:29:49,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:29:49,796 INFO L87 Difference]: Start difference. First operand 143 states and 157 transitions. Second operand has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:49,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:50,000 INFO L93 Difference]: Finished difference Result 141 states and 153 transitions. [2022-12-14 09:29:50,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:29:50,000 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-12-14 09:29:50,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:50,001 INFO L225 Difference]: With dead ends: 141 [2022-12-14 09:29:50,001 INFO L226 Difference]: Without dead ends: 141 [2022-12-14 09:29:50,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:29:50,002 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 61 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:50,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 306 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:29:50,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-12-14 09:29:50,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 122. [2022-12-14 09:29:50,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 96 states have (on average 1.3854166666666667) internal successors, (133), 121 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:50,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2022-12-14 09:29:50,005 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 133 transitions. Word has length 21 [2022-12-14 09:29:50,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:50,005 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 133 transitions. [2022-12-14 09:29:50,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.0) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:50,005 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 133 transitions. [2022-12-14 09:29:50,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 09:29:50,006 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:50,006 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] [2022-12-14 09:29:50,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 09:29:50,006 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:50,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:50,006 INFO L85 PathProgramCache]: Analyzing trace with hash 770959303, now seen corresponding path program 1 times [2022-12-14 09:29:50,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:50,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123637624] [2022-12-14 09:29:50,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:50,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:50,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:50,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123637624] [2022-12-14 09:29:50,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123637624] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:29:50,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446929826] [2022-12-14 09:29:50,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:50,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:29:50,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:29:50,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:29:50,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:29:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:50,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 29 conjunts are in the unsatisfiable core [2022-12-14 09:29:50,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:29:50,293 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:29:50,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:29:50,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:29:50,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:29:50,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:29:50,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,363 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:29:50,472 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 09:29:50,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 09:29:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:50,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:29:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:50,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446929826] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:29:50,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1732472613] [2022-12-14 09:29:50,559 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2022-12-14 09:29:50,559 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:29:50,563 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:29:50,568 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:29:50,568 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:29:50,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:29:50,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:29:50,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,637 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:29:50,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:29:50,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,655 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 [2022-12-14 09:29:50,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:29:50,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,672 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 [2022-12-14 09:29:50,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:29:50,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,699 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 36 treesize of output 23 [2022-12-14 09:29:50,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,708 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 36 treesize of output 23 [2022-12-14 09:29:50,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:29:50,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,744 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 [2022-12-14 09:29:50,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 09:29:50,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,766 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 [2022-12-14 09:29:50,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 09:29:50,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,801 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 43 treesize of output 33 [2022-12-14 09:29:50,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 09:29:50,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:29:50,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 09:29:50,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:50,866 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:29:51,073 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:29:52,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1732472613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:52,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:29:52,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5, 6, 5] total 21 [2022-12-14 09:29:52,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607232926] [2022-12-14 09:29:52,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:52,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 09:29:52,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:52,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 09:29:52,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-12-14 09:29:52,709 INFO L87 Difference]: Start difference. First operand 122 states and 133 transitions. Second operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:53,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:53,170 INFO L93 Difference]: Finished difference Result 140 states and 147 transitions. [2022-12-14 09:29:53,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 09:29:53,170 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-12-14 09:29:53,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:53,171 INFO L225 Difference]: With dead ends: 140 [2022-12-14 09:29:53,171 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 09:29:53,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 44 SyntacticMatches, 6 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2022-12-14 09:29:53,171 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 134 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:53,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 117 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-12-14 09:29:53,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 09:29:53,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 103. [2022-12-14 09:29:53,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 85 states have (on average 1.2941176470588236) internal successors, (110), 102 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:53,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 110 transitions. [2022-12-14 09:29:53,173 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 110 transitions. Word has length 21 [2022-12-14 09:29:53,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:53,174 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 110 transitions. [2022-12-14 09:29:53,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:53,174 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 110 transitions. [2022-12-14 09:29:53,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 09:29:53,174 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:53,174 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:53,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:29:53,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-14 09:29:53,376 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:53,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:53,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1879594872, now seen corresponding path program 1 times [2022-12-14 09:29:53,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:53,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812933613] [2022-12-14 09:29:53,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:53,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:53,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:53,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:53,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812933613] [2022-12-14 09:29:53,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812933613] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:53,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:53,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:29:53,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116351925] [2022-12-14 09:29:53,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:53,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:29:53,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:53,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:29:53,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:29:53,499 INFO L87 Difference]: Start difference. First operand 103 states and 110 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:53,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:53,581 INFO L93 Difference]: Finished difference Result 102 states and 109 transitions. [2022-12-14 09:29:53,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:29:53,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 09:29:53,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:53,582 INFO L225 Difference]: With dead ends: 102 [2022-12-14 09:29:53,582 INFO L226 Difference]: Without dead ends: 102 [2022-12-14 09:29:53,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:29:53,583 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 11 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:53,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 139 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:53,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-12-14 09:29:53,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2022-12-14 09:29:53,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.2857142857142858) internal successors, (108), 100 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 108 transitions. [2022-12-14 09:29:53,586 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 108 transitions. Word has length 22 [2022-12-14 09:29:53,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:53,586 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 108 transitions. [2022-12-14 09:29:53,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 108 transitions. [2022-12-14 09:29:53,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 09:29:53,587 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:53,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:53,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 09:29:53,587 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:53,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:53,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1890689676, now seen corresponding path program 1 times [2022-12-14 09:29:53,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:53,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154412859] [2022-12-14 09:29:53,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:53,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:53,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:53,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:53,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154412859] [2022-12-14 09:29:53,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154412859] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:53,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:53,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:29:53,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943849854] [2022-12-14 09:29:53,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:53,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:29:53,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:53,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:29:53,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:29:53,764 INFO L87 Difference]: Start difference. First operand 101 states and 108 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 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) [2022-12-14 09:29:54,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:54,007 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2022-12-14 09:29:54,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-14 09:29:54,007 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 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 [2022-12-14 09:29:54,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:54,008 INFO L225 Difference]: With dead ends: 121 [2022-12-14 09:29:54,008 INFO L226 Difference]: Without dead ends: 121 [2022-12-14 09:29:54,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2022-12-14 09:29:54,009 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 123 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:54,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 157 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:29:54,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-14 09:29:54,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 108. [2022-12-14 09:29:54,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 91 states have (on average 1.2637362637362637) internal successors, (115), 107 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:54,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 115 transitions. [2022-12-14 09:29:54,012 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 115 transitions. Word has length 24 [2022-12-14 09:29:54,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:54,012 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 115 transitions. [2022-12-14 09:29:54,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 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) [2022-12-14 09:29:54,013 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 115 transitions. [2022-12-14 09:29:54,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 09:29:54,013 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:54,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:54,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 09:29:54,013 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:54,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:54,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1681363225, now seen corresponding path program 1 times [2022-12-14 09:29:54,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:54,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992876563] [2022-12-14 09:29:54,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:54,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:54,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:54,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:54,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992876563] [2022-12-14 09:29:54,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992876563] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:29:54,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072215976] [2022-12-14 09:29:54,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:54,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:29:54,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:29:54,096 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:29:54,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:29:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:54,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 09:29:54,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:29:54,194 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:29:54,214 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 [2022-12-14 09:29:54,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:29:54,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:29:54,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072215976] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:54,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:29:54,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2022-12-14 09:29:54,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460071177] [2022-12-14 09:29:54,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:54,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:29:54,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:54,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:29:54,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:29:54,224 INFO L87 Difference]: Start difference. First operand 108 states and 115 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:54,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:54,307 INFO L93 Difference]: Finished difference Result 122 states and 130 transitions. [2022-12-14 09:29:54,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:29:54,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 09:29:54,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:54,308 INFO L225 Difference]: With dead ends: 122 [2022-12-14 09:29:54,308 INFO L226 Difference]: Without dead ends: 122 [2022-12-14 09:29:54,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:29:54,309 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 6 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:54,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 143 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:54,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-12-14 09:29:54,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 117. [2022-12-14 09:29:54,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 100 states have (on average 1.25) internal successors, (125), 116 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 125 transitions. [2022-12-14 09:29:54,313 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 125 transitions. Word has length 28 [2022-12-14 09:29:54,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:54,313 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 125 transitions. [2022-12-14 09:29:54,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:54,313 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 125 transitions. [2022-12-14 09:29:54,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 09:29:54,313 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:54,313 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] [2022-12-14 09:29:54,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:29:54,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:29:54,514 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:54,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:54,514 INFO L85 PathProgramCache]: Analyzing trace with hash -973930404, now seen corresponding path program 1 times [2022-12-14 09:29:54,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:54,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230056908] [2022-12-14 09:29:54,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:54,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:54,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:54,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:54,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:54,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230056908] [2022-12-14 09:29:54,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230056908] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:29:54,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856780957] [2022-12-14 09:29:54,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:54,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:29:54,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:29:54,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:29:54,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:29:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:54,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 27 conjunts are in the unsatisfiable core [2022-12-14 09:29:54,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:29:54,769 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:29:54,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:29:54,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:29:54,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:29:54,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:29:54,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:29:54,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 09:29:54,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 09:29:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:29:54,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:29:54,997 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 09:29:54,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856780957] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:29:54,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [975473996] [2022-12-14 09:29:54,999 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-12-14 09:29:54,999 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:29:54,999 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:29:54,999 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:29:54,999 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:29:55,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:29:55,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:29:55,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:29:55,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:29:55,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,049 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 [2022-12-14 09:29:55,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,058 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 [2022-12-14 09:29:55,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,065 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 [2022-12-14 09:29:55,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,083 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:29:55,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,092 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 36 treesize of output 23 [2022-12-14 09:29:55,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,102 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 36 treesize of output 23 [2022-12-14 09:29:55,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:29:55,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,128 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 [2022-12-14 09:29:55,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 09:29:55,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:29:55,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,177 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 09:29:55,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 09:29:55,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,202 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 43 treesize of output 33 [2022-12-14 09:29:55,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:29:55,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,238 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 09:29:55,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:55,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:29:55,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:29:55,469 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 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:29:55,509 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 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 09:29:55,531 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:29:57,663 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6695#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~list~0#1.base|) 1)) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 09:29:57,663 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:29:57,663 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:29:57,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 11 [2022-12-14 09:29:57,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859086602] [2022-12-14 09:29:57,663 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:29:57,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:29:57,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:57,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:29:57,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=711, Unknown=0, NotChecked=0, Total=870 [2022-12-14 09:29:57,664 INFO L87 Difference]: Start difference. First operand 117 states and 125 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:57,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:57,976 INFO L93 Difference]: Finished difference Result 179 states and 190 transitions. [2022-12-14 09:29:57,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 09:29:57,977 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-12-14 09:29:57,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:57,977 INFO L225 Difference]: With dead ends: 179 [2022-12-14 09:29:57,978 INFO L226 Difference]: Without dead ends: 179 [2022-12-14 09:29:57,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 60 SyntacticMatches, 5 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=211, Invalid=1049, Unknown=0, NotChecked=0, Total=1260 [2022-12-14 09:29:57,979 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 232 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:57,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 182 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:29:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-12-14 09:29:57,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 135. [2022-12-14 09:29:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 118 states have (on average 1.2372881355932204) internal successors, (146), 134 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:57,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 146 transitions. [2022-12-14 09:29:57,981 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 146 transitions. Word has length 29 [2022-12-14 09:29:57,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:57,981 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 146 transitions. [2022-12-14 09:29:57,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 11 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:57,982 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 146 transitions. [2022-12-14 09:29:57,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 09:29:57,982 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:57,982 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:29:57,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:29:58,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-12-14 09:29:58,184 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:58,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:58,185 INFO L85 PathProgramCache]: Analyzing trace with hash -182482604, now seen corresponding path program 1 times [2022-12-14 09:29:58,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:58,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382607249] [2022-12-14 09:29:58,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:58,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:58,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:58,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:58,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382607249] [2022-12-14 09:29:58,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382607249] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:29:58,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:29:58,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:29:58,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694583843] [2022-12-14 09:29:58,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:29:58,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 09:29:58,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:29:58,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 09:29:58,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:29:58,439 INFO L87 Difference]: Start difference. First operand 135 states and 146 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 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) [2022-12-14 09:29:58,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:29:58,612 INFO L93 Difference]: Finished difference Result 168 states and 181 transitions. [2022-12-14 09:29:58,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-14 09:29:58,613 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-12-14 09:29:58,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:29:58,613 INFO L225 Difference]: With dead ends: 168 [2022-12-14 09:29:58,613 INFO L226 Difference]: Without dead ends: 168 [2022-12-14 09:29:58,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-12-14 09:29:58,614 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 145 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:29:58,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 166 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:29:58,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2022-12-14 09:29:58,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 126. [2022-12-14 09:29:58,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 110 states have (on average 1.2454545454545454) internal successors, (137), 125 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:29:58,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 137 transitions. [2022-12-14 09:29:58,616 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 137 transitions. Word has length 30 [2022-12-14 09:29:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:29:58,616 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 137 transitions. [2022-12-14 09:29:58,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 9 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) [2022-12-14 09:29:58,617 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 137 transitions. [2022-12-14 09:29:58,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 09:29:58,617 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:29:58,617 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] [2022-12-14 09:29:58,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-14 09:29:58,617 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 77 more)] === [2022-12-14 09:29:58,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:29:58,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1675562428, now seen corresponding path program 1 times [2022-12-14 09:29:58,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:29:58,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354278518] [2022-12-14 09:29:58,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:58,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:29:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:59,105 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:59,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:29:59,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354278518] [2022-12-14 09:29:59,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354278518] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:29:59,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800700706] [2022-12-14 09:29:59,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:29:59,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:29:59,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:29:59,107 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:29:59,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19a89069-ab43-4e6e-86c3-52565c068ab6/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:29:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:29:59,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 37 conjunts are in the unsatisfiable core [2022-12-14 09:29:59,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:29:59,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:29:59,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:29:59,266 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 09:29:59,266 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 [2022-12-14 09:29:59,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,291 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 21 treesize of output 20 [2022-12-14 09:29:59,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:29:59,352 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 09:29:59,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2022-12-14 09:29:59,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2022-12-14 09:29:59,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-12-14 09:29:59,389 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 [2022-12-14 09:29:59,402 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 [2022-12-14 09:29:59,456 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 09:29:59,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:59,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:29:59,505 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1427 (Array Int Int))) (= ~unnamed1~0~BLACK (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_1427) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)))) is different from false [2022-12-14 09:29:59,545 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1427 (Array Int Int)) (v_ArrVal_1425 (Array Int Int)) (v_ArrVal_1424 (Array Int Int))) (= ~unnamed1~0~BLACK (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1424) (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem5#1.base| v_ArrVal_1425) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1427) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)))) is different from false [2022-12-14 09:29:59,552 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1427 (Array Int Int)) (v_ArrVal_1425 (Array Int Int)) (v_ArrVal_1424 (Array Int Int))) (= ~unnamed1~0~BLACK (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store (store |c_#memory_int| .cse0 v_ArrVal_1424) (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_1425) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_1427)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)))) is different from false [2022-12-14 09:29:59,558 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:29:59,559 INFO L350 Elim1Store]: Elim1 eliminated variable 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 38 treesize of output 39 [2022-12-14 09:29:59,563 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 70 treesize of output 62 [2022-12-14 09:29:59,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2022-12-14 09:29:59,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:29:59,747 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:29:59,747 INFO L350 Elim1Store]: Elim1 eliminated variable 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 39 treesize of output 45 [2022-12-14 09:29:59,751 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 50 treesize of output 38 [2022-12-14 09:29:59,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 09:29:59,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:29:59,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800700706] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:29:59,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [29511559] [2022-12-14 09:29:59,777 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-12-14 09:29:59,777 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:29:59,777 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:29:59,777 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:29:59,777 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:29:59,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 09:29:59,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:29:59,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:29:59,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:29:59,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,837 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 [2022-12-14 09:29:59,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,845 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 [2022-12-14 09:29:59,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,853 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 [2022-12-14 09:29:59,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 09:29:59,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,877 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 36 treesize of output 23 [2022-12-14 09:29:59,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 09:29:59,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,901 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 36 treesize of output 23 [2022-12-14 09:29:59,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,924 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 [2022-12-14 09:29:59,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2022-12-14 09:29:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,944 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 [2022-12-14 09:29:59,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 09:29:59,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,977 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 43 treesize of output 33 [2022-12-14 09:29:59,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:29:59,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 09:30:00,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 09:30:00,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:30:00,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 09:30:00,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,079 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 41 treesize of output 48 [2022-12-14 09:30:00,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2022-12-14 09:30:00,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-12-14 09:30:00,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-12-14 09:30:00,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:30:00,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:30:00,200 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:30:00,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 194 treesize of output 153 [2022-12-14 09:30:00,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,222 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 129 treesize of output 116 [2022-12-14 09:30:00,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,247 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 72 treesize of output 45 [2022-12-14 09:30:00,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:30:00,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:30:00,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:30:00,309 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-12-14 09:30:00,310 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 6 new quantified variables, introduced 6 case distinctions, treesize of input 157 treesize of output 135 [2022-12-14 09:30:00,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,335 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 09:30:00,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 98 [2022-12-14 09:30:00,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2022-12-14 09:30:00,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:30:00,408 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:30:00,422 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 09:30:00,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 09:30:00,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:30:00,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:30:00,452 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-12-14 09:30:00,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 145 treesize of output 115 [2022-12-14 09:30:00,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,471 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2022-12-14 09:30:00,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 60 [2022-12-14 09:30:00,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:30:00,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:30:00,643 INFO L321 Elim1Store]: treesize reduction 41, result has 14.6 percent of original size [2022-12-14 09:30:00,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 185 treesize of output 155 [2022-12-14 09:30:00,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 69 [2022-12-14 09:30:00,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:30:00,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 57 [2022-12-14 09:30:00,743 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 09:30:00,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 114 treesize of output 84 [2022-12-14 09:30:00,764 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 09:30:00,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 96 [2022-12-14 09:30:00,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1 [2022-12-14 09:30:00,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 09:30:01,684 INFO L321 Elim1Store]: treesize reduction 172, result has 75.3 percent of original size [2022-12-14 09:30:01,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 36 case distinctions, treesize of input 387 treesize of output 803 [2022-12-14 09:30:02,554 INFO L321 Elim1Store]: treesize reduction 140, result has 75.4 percent of original size [2022-12-14 09:30:02,555 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 36 case distinctions, treesize of input 541 treesize of output 851 [2022-12-14 09:31:57,362 WARN L233 SmtUtils]: Spent 10.53s on a formula simplification. DAG size of input: 820 DAG size of output: 820 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)