./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/tree-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/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_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/tree-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/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_954e8129-c6b5-4a48-97ce-d83b15b5bafa/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 ff6ec4010c0396675f743c4c0d5de68176a7292a1f0bcf6c389633f85d936d1a --- 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 09:57:41,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:57:41,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:57:41,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:57:41,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:57:41,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:57:41,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:57:41,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:57:41,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:57:41,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:57:41,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:57:41,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:57:41,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:57:41,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:57:41,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:57:41,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:57:41,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:57:41,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:57:41,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:57:41,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:57:41,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:57:41,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:57:41,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:57:41,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:57:41,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:57:41,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:57:41,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:57:41,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:57:41,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:57:41,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:57:41,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:57:41,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:57:41,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:57:41,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:57:41,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:57:41,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:57:41,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:57:41,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:57:41,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:57:41,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:57:41,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:57:41,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 09:57:41,974 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:57:41,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:57:41,975 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:57:41,975 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:57:41,975 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:57:41,976 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:57:41,976 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:57:41,976 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:57:41,976 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:57:41,976 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:57:41,976 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:57:41,976 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:57:41,976 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:57:41,977 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:57:41,977 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:57:41,977 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:57:41,977 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:57:41,977 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:57:41,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 09:57:41,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 09:57:41,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:57:41,978 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 09:57:41,978 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:57:41,978 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:57:41,978 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 09:57:41,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:57:41,978 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 09:57:41,979 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 09:57:41,979 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 09:57:41,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:57:41,979 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 09:57:41,979 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 09:57:41,979 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:57:41,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:57:41,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:57:41,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:57:41,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:57:41,980 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:57:41,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:57:41,980 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:57:41,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:57:41,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:57:41,980 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_954e8129-c6b5-4a48-97ce-d83b15b5bafa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff6ec4010c0396675f743c4c0d5de68176a7292a1f0bcf6c389633f85d936d1a [2022-12-14 09:57:42,148 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:57:42,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:57:42,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:57:42,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:57:42,168 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:57:42,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/heap-manipulation/tree-2.i [2022-12-14 09:57:44,770 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:57:44,917 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:57:44,918 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/sv-benchmarks/c/heap-manipulation/tree-2.i [2022-12-14 09:57:44,925 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/data/51658121e/53aa0102b59646ae93f54f155b81683d/FLAGd7d2d402b [2022-12-14 09:57:44,935 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/data/51658121e/53aa0102b59646ae93f54f155b81683d [2022-12-14 09:57:44,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:57:44,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:57:44,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:57:44,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:57:44,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:57:44,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:57:44" (1/1) ... [2022-12-14 09:57:44,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ccd9279 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:44, skipping insertion in model container [2022-12-14 09:57:44,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:57:44" (1/1) ... [2022-12-14 09:57:44,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:57:44,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:57:45,145 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_954e8129-c6b5-4a48-97ce-d83b15b5bafa/sv-benchmarks/c/heap-manipulation/tree-2.i[22626,22639] [2022-12-14 09:57:45,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:57:45,170 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:57:45,193 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_954e8129-c6b5-4a48-97ce-d83b15b5bafa/sv-benchmarks/c/heap-manipulation/tree-2.i[22626,22639] [2022-12-14 09:57:45,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:57:45,217 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:57:45,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45 WrapperNode [2022-12-14 09:57:45,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:57:45,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:57:45,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:57:45,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:57:45,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (1/1) ... [2022-12-14 09:57:45,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (1/1) ... [2022-12-14 09:57:45,250 INFO L138 Inliner]: procedures = 122, calls = 43, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 153 [2022-12-14 09:57:45,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:57:45,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:57:45,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:57:45,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:57:45,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (1/1) ... [2022-12-14 09:57:45,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (1/1) ... [2022-12-14 09:57:45,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (1/1) ... [2022-12-14 09:57:45,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (1/1) ... [2022-12-14 09:57:45,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (1/1) ... [2022-12-14 09:57:45,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (1/1) ... [2022-12-14 09:57:45,271 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (1/1) ... [2022-12-14 09:57:45,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (1/1) ... [2022-12-14 09:57:45,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:57:45,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:57:45,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:57:45,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:57:45,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (1/1) ... [2022-12-14 09:57:45,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:57:45,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:57:45,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:57:45,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:57:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:57:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-12-14 09:57:45,323 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-12-14 09:57:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:57:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:57:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:57:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:57:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:57:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:57:45,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:57:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:57:45,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:57:45,411 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:57:45,413 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:57:45,747 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:57:45,779 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:57:45,779 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-12-14 09:57:45,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:57:45 BoogieIcfgContainer [2022-12-14 09:57:45,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:57:45,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:57:45,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:57:45,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:57:45,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:57:44" (1/3) ... [2022-12-14 09:57:45,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476e91c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:57:45, skipping insertion in model container [2022-12-14 09:57:45,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:57:45" (2/3) ... [2022-12-14 09:57:45,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476e91c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:57:45, skipping insertion in model container [2022-12-14 09:57:45,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:57:45" (3/3) ... [2022-12-14 09:57:45,788 INFO L112 eAbstractionObserver]: Analyzing ICFG tree-2.i [2022-12-14 09:57:45,801 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:57:45,802 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 63 error locations. [2022-12-14 09:57:45,832 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:57:45,837 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;@67fcec8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:57:45,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-12-14 09:57:45,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 58 states have (on average 2.4482758620689653) internal successors, (142), 124 states have internal predecessors, (142), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:57:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:57:45,846 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:45,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:57:45,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:45,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:45,852 INFO L85 PathProgramCache]: Analyzing trace with hash 9492502, now seen corresponding path program 1 times [2022-12-14 09:57:45,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:45,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863226028] [2022-12-14 09:57:45,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:45,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:45,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:46,031 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 09:57:46,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:46,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863226028] [2022-12-14 09:57:46,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863226028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:46,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:46,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:57:46,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824087935] [2022-12-14 09:57:46,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:46,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:57:46,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:46,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:57:46,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:57:46,060 INFO L87 Difference]: Start difference. First operand has 126 states, 58 states have (on average 2.4482758620689653) internal successors, (142), 124 states have internal predecessors, (142), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:46,240 INFO L93 Difference]: Finished difference Result 197 states and 219 transitions. [2022-12-14 09:57:46,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:57:46,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 09:57:46,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:46,250 INFO L225 Difference]: With dead ends: 197 [2022-12-14 09:57:46,250 INFO L226 Difference]: Without dead ends: 195 [2022-12-14 09:57:46,251 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 09:57:46,254 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 115 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:46,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 196 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:57:46,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-12-14 09:57:46,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 120. [2022-12-14 09:57:46,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 62 states have (on average 2.1129032258064515) internal successors, (131), 118 states have internal predecessors, (131), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 134 transitions. [2022-12-14 09:57:46,292 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 134 transitions. Word has length 4 [2022-12-14 09:57:46,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:46,292 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 134 transitions. [2022-12-14 09:57:46,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,292 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 134 transitions. [2022-12-14 09:57:46,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 09:57:46,293 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:46,293 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 09:57:46,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:57:46,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:46,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:46,294 INFO L85 PathProgramCache]: Analyzing trace with hash 9492503, now seen corresponding path program 1 times [2022-12-14 09:57:46,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:46,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386608565] [2022-12-14 09:57:46,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:46,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:57:46,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:46,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386608565] [2022-12-14 09:57:46,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386608565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:46,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:46,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:57:46,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444221560] [2022-12-14 09:57:46,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:46,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:57:46,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:46,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:57:46,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:57:46,380 INFO L87 Difference]: Start difference. First operand 120 states and 134 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:46,515 INFO L93 Difference]: Finished difference Result 208 states and 230 transitions. [2022-12-14 09:57:46,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:57:46,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 09:57:46,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:46,516 INFO L225 Difference]: With dead ends: 208 [2022-12-14 09:57:46,516 INFO L226 Difference]: Without dead ends: 208 [2022-12-14 09:57:46,516 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 09:57:46,517 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 109 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:46,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 229 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:57:46,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-12-14 09:57:46,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 126. [2022-12-14 09:57:46,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 71 states have (on average 2.028169014084507) internal successors, (144), 124 states have internal predecessors, (144), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2022-12-14 09:57:46,523 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 4 [2022-12-14 09:57:46,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:46,523 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2022-12-14 09:57:46,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,524 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2022-12-14 09:57:46,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 09:57:46,524 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:46,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 09:57:46,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:57:46,524 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:46,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:46,525 INFO L85 PathProgramCache]: Analyzing trace with hash 293991747, now seen corresponding path program 1 times [2022-12-14 09:57:46,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:46,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495215750] [2022-12-14 09:57:46,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:46,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:46,548 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 09:57:46,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:46,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495215750] [2022-12-14 09:57:46,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495215750] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:46,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:46,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:57:46,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363939114] [2022-12-14 09:57:46,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:46,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:57:46,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:46,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:57:46,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:57:46,550 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:46,590 INFO L93 Difference]: Finished difference Result 127 states and 148 transitions. [2022-12-14 09:57:46,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:57:46,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 09:57:46,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:46,591 INFO L225 Difference]: With dead ends: 127 [2022-12-14 09:57:46,591 INFO L226 Difference]: Without dead ends: 127 [2022-12-14 09:57:46,591 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 09:57:46,592 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 81 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:46,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 127 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:57:46,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-12-14 09:57:46,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-12-14 09:57:46,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 72 states have (on average 2.013888888888889) internal successors, (145), 125 states have internal predecessors, (145), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2022-12-14 09:57:46,597 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 5 [2022-12-14 09:57:46,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:46,597 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2022-12-14 09:57:46,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,597 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2022-12-14 09:57:46,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 09:57:46,597 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:46,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 09:57:46,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:57:46,598 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:46,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:46,598 INFO L85 PathProgramCache]: Analyzing trace with hash 524052570, now seen corresponding path program 1 times [2022-12-14 09:57:46,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:46,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711378949] [2022-12-14 09:57:46,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:46,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:46,614 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 09:57:46,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:46,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711378949] [2022-12-14 09:57:46,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711378949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:46,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:46,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:57:46,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085923914] [2022-12-14 09:57:46,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:46,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:57:46,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:46,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:57:46,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:57:46,617 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:46,695 INFO L93 Difference]: Finished difference Result 200 states and 230 transitions. [2022-12-14 09:57:46,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:57:46,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-12-14 09:57:46,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:46,697 INFO L225 Difference]: With dead ends: 200 [2022-12-14 09:57:46,697 INFO L226 Difference]: Without dead ends: 199 [2022-12-14 09:57:46,698 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 09:57:46,699 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 75 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:46,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 146 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:57:46,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-12-14 09:57:46,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 128. [2022-12-14 09:57:46,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 73 states have (on average 2.0) internal successors, (146), 126 states have internal predecessors, (146), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2022-12-14 09:57:46,706 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 6 [2022-12-14 09:57:46,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:46,707 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2022-12-14 09:57:46,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,707 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2022-12-14 09:57:46,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 09:57:46,707 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:46,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:46,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:57:46,707 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:46,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:46,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1103256734, now seen corresponding path program 1 times [2022-12-14 09:57:46,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:46,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746752838] [2022-12-14 09:57:46,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:46,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:46,749 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 09:57:46,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:46,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746752838] [2022-12-14 09:57:46,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746752838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:46,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:46,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:57:46,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245213098] [2022-12-14 09:57:46,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:46,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:57:46,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:46,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:57:46,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:57:46,751 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:46,805 INFO L93 Difference]: Finished difference Result 135 states and 154 transitions. [2022-12-14 09:57:46,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:57:46,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 09:57:46,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:46,806 INFO L225 Difference]: With dead ends: 135 [2022-12-14 09:57:46,806 INFO L226 Difference]: Without dead ends: 133 [2022-12-14 09:57:46,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:57:46,807 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 7 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:46,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 312 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:57:46,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-12-14 09:57:46,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 129. [2022-12-14 09:57:46,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 74 states have (on average 1.972972972972973) internal successors, (146), 127 states have internal predecessors, (146), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2022-12-14 09:57:46,811 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 8 [2022-12-14 09:57:46,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:46,811 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2022-12-14 09:57:46,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,811 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2022-12-14 09:57:46,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 09:57:46,812 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:46,812 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:46,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:57:46,812 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:46,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:46,812 INFO L85 PathProgramCache]: Analyzing trace with hash -577538719, now seen corresponding path program 1 times [2022-12-14 09:57:46,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:46,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239408440] [2022-12-14 09:57:46,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:46,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:46,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:57:46,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:46,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239408440] [2022-12-14 09:57:46,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239408440] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:46,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:46,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:57:46,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330586766] [2022-12-14 09:57:46,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:46,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:57:46,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:46,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:57:46,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:57:46,865 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:46,913 INFO L93 Difference]: Finished difference Result 137 states and 148 transitions. [2022-12-14 09:57:46,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:57:46,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-12-14 09:57:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:46,914 INFO L225 Difference]: With dead ends: 137 [2022-12-14 09:57:46,914 INFO L226 Difference]: Without dead ends: 137 [2022-12-14 09:57:46,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:57:46,915 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 22 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:46,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 188 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:57:46,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-12-14 09:57:46,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 129. [2022-12-14 09:57:46,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 74 states have (on average 1.9594594594594594) internal successors, (145), 127 states have internal predecessors, (145), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 148 transitions. [2022-12-14 09:57:46,922 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 148 transitions. Word has length 13 [2022-12-14 09:57:46,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:46,922 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 148 transitions. [2022-12-14 09:57:46,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:46,922 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 148 transitions. [2022-12-14 09:57:46,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:57:46,923 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:46,923 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:46,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:57:46,923 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:46,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:46,924 INFO L85 PathProgramCache]: Analyzing trace with hash -731119107, now seen corresponding path program 1 times [2022-12-14 09:57:46,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:46,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019800863] [2022-12-14 09:57:46,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:46,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:47,059 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:57:47,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:47,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019800863] [2022-12-14 09:57:47,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019800863] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:47,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:47,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:57:47,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845220342] [2022-12-14 09:57:47,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:47,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:57:47,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:47,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:57:47,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:57:47,062 INFO L87 Difference]: Start difference. First operand 129 states and 148 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:47,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:47,166 INFO L93 Difference]: Finished difference Result 128 states and 146 transitions. [2022-12-14 09:57:47,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:57:47,166 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 09:57:47,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:47,167 INFO L225 Difference]: With dead ends: 128 [2022-12-14 09:57:47,167 INFO L226 Difference]: Without dead ends: 128 [2022-12-14 09:57:47,167 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 09:57:47,168 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 6 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:47,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 292 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:57:47,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-12-14 09:57:47,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2022-12-14 09:57:47,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 74 states have (on average 1.9324324324324325) internal successors, (143), 126 states have internal predecessors, (143), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:47,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 146 transitions. [2022-12-14 09:57:47,171 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 146 transitions. Word has length 14 [2022-12-14 09:57:47,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:47,171 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 146 transitions. [2022-12-14 09:57:47,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:47,171 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 146 transitions. [2022-12-14 09:57:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:57:47,172 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:47,172 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:47,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:57:47,172 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:47,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:47,173 INFO L85 PathProgramCache]: Analyzing trace with hash -731119106, now seen corresponding path program 1 times [2022-12-14 09:57:47,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:47,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607486969] [2022-12-14 09:57:47,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:47,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:57:47,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:47,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607486969] [2022-12-14 09:57:47,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607486969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:47,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:47,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:57:47,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605812946] [2022-12-14 09:57:47,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:47,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:57:47,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:47,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:57:47,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:57:47,307 INFO L87 Difference]: Start difference. First operand 128 states and 146 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:47,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:47,410 INFO L93 Difference]: Finished difference Result 127 states and 144 transitions. [2022-12-14 09:57:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:57:47,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 09:57:47,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:47,411 INFO L225 Difference]: With dead ends: 127 [2022-12-14 09:57:47,412 INFO L226 Difference]: Without dead ends: 127 [2022-12-14 09:57:47,412 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 09:57:47,413 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 4 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 302 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 09:57:47,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 302 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:57:47,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-12-14 09:57:47,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-12-14 09:57:47,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 74 states have (on average 1.9054054054054055) internal successors, (141), 125 states have internal predecessors, (141), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:47,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 144 transitions. [2022-12-14 09:57:47,417 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 144 transitions. Word has length 14 [2022-12-14 09:57:47,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:47,418 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 144 transitions. [2022-12-14 09:57:47,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:47,418 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 144 transitions. [2022-12-14 09:57:47,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:57:47,418 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:47,418 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:47,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:57:47,419 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:47,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:47,419 INFO L85 PathProgramCache]: Analyzing trace with hash -466310849, now seen corresponding path program 1 times [2022-12-14 09:57:47,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:47,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875513948] [2022-12-14 09:57:47,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:47,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:47,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:47,541 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:57:47,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:47,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875513948] [2022-12-14 09:57:47,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875513948] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:57:47,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845136728] [2022-12-14 09:57:47,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:47,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:57:47,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:57:47,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:57:47,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:57:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:47,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 09:57:47,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:57:47,637 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 09:57:47,666 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:57:47,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:57:47,676 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:57:47,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:57:47,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:57:47,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845136728] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:57:47,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1268284659] [2022-12-14 09:57:47,793 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 09:57:47,793 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:57:47,797 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:57:47,801 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:57:47,801 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:57:47,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,847 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 09:57:47,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:57:47,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 09:57:47,878 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 09:57:47,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:57:47,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,901 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 09:57:47,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,910 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 09:57:47,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,942 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 09:57:47,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,951 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 09:57:47,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,961 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 09:57:47,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:47,990 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 22 treesize of output 30 [2022-12-14 09:57:48,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,016 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 26 treesize of output 28 [2022-12-14 09:57:48,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,030 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 31 [2022-12-14 09:57:48,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,043 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 26 treesize of output 28 [2022-12-14 09:57:48,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,076 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 35 treesize of output 40 [2022-12-14 09:57:48,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,091 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 35 treesize of output 40 [2022-12-14 09:57:48,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,108 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 41 treesize of output 31 [2022-12-14 09:57:48,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,145 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 09:57:48,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,157 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 09:57:48,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,169 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 09:57:48,290 INFO L321 Elim1Store]: treesize reduction 58, result has 21.6 percent of original size [2022-12-14 09:57:48,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 230 treesize of output 232 [2022-12-14 09:57:48,400 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-12-14 09:57:48,401 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 223 [2022-12-14 09:57:48,428 INFO L321 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2022-12-14 09:57:48,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 225 treesize of output 211 [2022-12-14 09:57:48,449 INFO L321 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-12-14 09:57:48,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 221 treesize of output 223 [2022-12-14 09:57:48,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,500 INFO L321 Elim1Store]: treesize reduction 65, result has 12.2 percent of original size [2022-12-14 09:57:48,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 229 treesize of output 211 [2022-12-14 09:57:48,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,528 INFO L321 Elim1Store]: treesize reduction 80, result has 17.5 percent of original size [2022-12-14 09:57:48,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 230 treesize of output 235 [2022-12-14 09:57:48,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:48,556 INFO L321 Elim1Store]: treesize reduction 80, result has 17.5 percent of original size [2022-12-14 09:57:48,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 230 treesize of output 235 [2022-12-14 09:57:48,643 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:57:50,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1268284659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:50,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:57:50,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 3, 4] total 14 [2022-12-14 09:57:50,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160139445] [2022-12-14 09:57:50,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:50,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 09:57:50,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:50,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 09:57:50,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-12-14 09:57:50,475 INFO L87 Difference]: Start difference. First operand 127 states and 144 transitions. Second operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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 09:57:51,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:51,224 INFO L93 Difference]: Finished difference Result 137 states and 156 transitions. [2022-12-14 09:57:51,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 09:57:51,224 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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 14 [2022-12-14 09:57:51,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:51,225 INFO L225 Difference]: With dead ends: 137 [2022-12-14 09:57:51,225 INFO L226 Difference]: Without dead ends: 137 [2022-12-14 09:57:51,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-12-14 09:57:51,226 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 1 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:51,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 236 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 09:57:51,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-12-14 09:57:51,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2022-12-14 09:57:51,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 82 states have (on average 1.8414634146341464) internal successors, (151), 133 states have internal predecessors, (151), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:51,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 154 transitions. [2022-12-14 09:57:51,229 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 154 transitions. Word has length 14 [2022-12-14 09:57:51,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:51,230 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 154 transitions. [2022-12-14 09:57:51,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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 09:57:51,230 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 154 transitions. [2022-12-14 09:57:51,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 09:57:51,230 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:51,230 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:51,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:57:51,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:57:51,432 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:51,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:51,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1769394147, now seen corresponding path program 1 times [2022-12-14 09:57:51,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:51,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048152538] [2022-12-14 09:57:51,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:51,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:51,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:57:51,583 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:51,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048152538] [2022-12-14 09:57:51,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048152538] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:51,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:51,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 09:57:51,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251883148] [2022-12-14 09:57:51,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:51,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:57:51,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:51,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:57:51,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:57:51,584 INFO L87 Difference]: Start difference. First operand 135 states and 154 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 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 09:57:51,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:51,806 INFO L93 Difference]: Finished difference Result 136 states and 153 transitions. [2022-12-14 09:57:51,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:57:51,806 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2022-12-14 09:57:51,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:51,807 INFO L225 Difference]: With dead ends: 136 [2022-12-14 09:57:51,807 INFO L226 Difference]: Without dead ends: 136 [2022-12-14 09:57:51,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:57:51,808 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 33 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:51,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 444 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:57:51,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-14 09:57:51,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 135. [2022-12-14 09:57:51,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 82 states have (on average 1.829268292682927) internal successors, (150), 133 states have internal predecessors, (150), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:51,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 153 transitions. [2022-12-14 09:57:51,811 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 153 transitions. Word has length 16 [2022-12-14 09:57:51,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:51,811 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 153 transitions. [2022-12-14 09:57:51,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 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 09:57:51,811 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 153 transitions. [2022-12-14 09:57:51,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 09:57:51,811 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:51,811 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:51,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 09:57:51,812 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:51,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:51,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1769394148, now seen corresponding path program 1 times [2022-12-14 09:57:51,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:51,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258088091] [2022-12-14 09:57:51,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:51,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:57:52,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:52,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258088091] [2022-12-14 09:57:52,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258088091] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:52,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:52,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 09:57:52,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427869211] [2022-12-14 09:57:52,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:52,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 09:57:52,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:52,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 09:57:52,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:57:52,009 INFO L87 Difference]: Start difference. First operand 135 states and 153 transitions. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 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 09:57:52,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:52,233 INFO L93 Difference]: Finished difference Result 135 states and 152 transitions. [2022-12-14 09:57:52,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 09:57:52,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 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 16 [2022-12-14 09:57:52,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:52,234 INFO L225 Difference]: With dead ends: 135 [2022-12-14 09:57:52,234 INFO L226 Difference]: Without dead ends: 135 [2022-12-14 09:57:52,234 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:57:52,235 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 30 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:52,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 458 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:57:52,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-12-14 09:57:52,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2022-12-14 09:57:52,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 82 states have (on average 1.8170731707317074) internal successors, (149), 133 states have internal predecessors, (149), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:52,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 152 transitions. [2022-12-14 09:57:52,237 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 152 transitions. Word has length 16 [2022-12-14 09:57:52,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:52,237 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 152 transitions. [2022-12-14 09:57:52,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 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 09:57:52,238 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 152 transitions. [2022-12-14 09:57:52,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 09:57:52,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:52,238 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:52,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:57:52,238 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:52,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:52,238 INFO L85 PathProgramCache]: Analyzing trace with hash -419059100, now seen corresponding path program 1 times [2022-12-14 09:57:52,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:52,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144806769] [2022-12-14 09:57:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:52,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:52,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:57:52,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:52,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144806769] [2022-12-14 09:57:52,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144806769] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:52,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:52,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:57:52,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49624967] [2022-12-14 09:57:52,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:52,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:57:52,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:52,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:57:52,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:57:52,400 INFO L87 Difference]: Start difference. First operand 135 states and 152 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 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 09:57:52,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:52,581 INFO L93 Difference]: Finished difference Result 136 states and 151 transitions. [2022-12-14 09:57:52,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:57:52,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-12-14 09:57:52,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:52,583 INFO L225 Difference]: With dead ends: 136 [2022-12-14 09:57:52,583 INFO L226 Difference]: Without dead ends: 136 [2022-12-14 09:57:52,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-12-14 09:57:52,584 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 35 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:52,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 384 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:57:52,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-14 09:57:52,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 135. [2022-12-14 09:57:52,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 82 states have (on average 1.8048780487804879) internal successors, (148), 133 states have internal predecessors, (148), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:52,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 151 transitions. [2022-12-14 09:57:52,586 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 151 transitions. Word has length 18 [2022-12-14 09:57:52,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:52,586 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 151 transitions. [2022-12-14 09:57:52,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 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 09:57:52,586 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 151 transitions. [2022-12-14 09:57:52,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 09:57:52,587 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:52,587 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:52,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:57:52,587 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:52,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:52,587 INFO L85 PathProgramCache]: Analyzing trace with hash -419059099, now seen corresponding path program 1 times [2022-12-14 09:57:52,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:52,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356591568] [2022-12-14 09:57:52,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:52,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:52,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:57:52,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:52,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356591568] [2022-12-14 09:57:52,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356591568] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:52,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:52,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 09:57:52,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120452995] [2022-12-14 09:57:52,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:52,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:57:52,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:52,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:57:52,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 09:57:52,821 INFO L87 Difference]: Start difference. First operand 135 states and 151 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 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 09:57:53,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:53,066 INFO L93 Difference]: Finished difference Result 135 states and 150 transitions. [2022-12-14 09:57:53,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 09:57:53,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2022-12-14 09:57:53,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:53,068 INFO L225 Difference]: With dead ends: 135 [2022-12-14 09:57:53,068 INFO L226 Difference]: Without dead ends: 135 [2022-12-14 09:57:53,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-12-14 09:57:53,068 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 32 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:53,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 458 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:57:53,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-12-14 09:57:53,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2022-12-14 09:57:53,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 82 states have (on average 1.7926829268292683) internal successors, (147), 133 states have internal predecessors, (147), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 150 transitions. [2022-12-14 09:57:53,071 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 150 transitions. Word has length 18 [2022-12-14 09:57:53,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:53,071 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 150 transitions. [2022-12-14 09:57:53,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 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 09:57:53,072 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 150 transitions. [2022-12-14 09:57:53,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 09:57:53,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:53,072 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:53,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:57:53,073 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:53,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:53,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1011336187, now seen corresponding path program 1 times [2022-12-14 09:57:53,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:53,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878910589] [2022-12-14 09:57:53,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:53,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:53,268 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:57:53,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:53,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878910589] [2022-12-14 09:57:53,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878910589] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:53,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:53,269 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 09:57:53,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545552423] [2022-12-14 09:57:53,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:53,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 09:57:53,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:53,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 09:57:53,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-14 09:57:53,270 INFO L87 Difference]: Start difference. First operand 135 states and 150 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 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 09:57:53,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:53,563 INFO L93 Difference]: Finished difference Result 136 states and 149 transitions. [2022-12-14 09:57:53,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 09:57:53,563 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 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 20 [2022-12-14 09:57:53,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:53,564 INFO L225 Difference]: With dead ends: 136 [2022-12-14 09:57:53,564 INFO L226 Difference]: Without dead ends: 136 [2022-12-14 09:57:53,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2022-12-14 09:57:53,565 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 37 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:53,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 562 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:57:53,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-14 09:57:53,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 135. [2022-12-14 09:57:53,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 82 states have (on average 1.7804878048780488) internal successors, (146), 133 states have internal predecessors, (146), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:53,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 149 transitions. [2022-12-14 09:57:53,569 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 149 transitions. Word has length 20 [2022-12-14 09:57:53,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:53,569 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 149 transitions. [2022-12-14 09:57:53,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 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 09:57:53,569 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 149 transitions. [2022-12-14 09:57:53,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 09:57:53,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:53,570 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:57:53,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:57:53,570 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:53,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:53,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1011336188, now seen corresponding path program 1 times [2022-12-14 09:57:53,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:53,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094559632] [2022-12-14 09:57:53,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:53,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:53,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:57:53,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:53,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094559632] [2022-12-14 09:57:53,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094559632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:57:53,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:57:53,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 09:57:53,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579252087] [2022-12-14 09:57:53,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:57:53,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 09:57:53,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:53,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 09:57:53,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-14 09:57:53,897 INFO L87 Difference]: Start difference. First operand 135 states and 149 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 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 09:57:54,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:54,208 INFO L93 Difference]: Finished difference Result 135 states and 148 transitions. [2022-12-14 09:57:54,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 09:57:54,208 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 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 20 [2022-12-14 09:57:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:54,209 INFO L225 Difference]: With dead ends: 135 [2022-12-14 09:57:54,209 INFO L226 Difference]: Without dead ends: 135 [2022-12-14 09:57:54,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2022-12-14 09:57:54,210 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 28 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:54,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 618 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:57:54,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-12-14 09:57:54,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2022-12-14 09:57:54,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 82 states have (on average 1.7682926829268293) internal successors, (145), 133 states have internal predecessors, (145), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:54,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 148 transitions. [2022-12-14 09:57:54,214 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 148 transitions. Word has length 20 [2022-12-14 09:57:54,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:54,214 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 148 transitions. [2022-12-14 09:57:54,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 11 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 09:57:54,214 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 148 transitions. [2022-12-14 09:57:54,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 09:57:54,214 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:54,215 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-12-14 09:57:54,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:57:54,215 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:54,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:54,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1885963906, now seen corresponding path program 1 times [2022-12-14 09:57:54,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:54,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365449837] [2022-12-14 09:57:54,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:54,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:54,290 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 09:57:54,291 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:54,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365449837] [2022-12-14 09:57:54,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365449837] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:57:54,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261388667] [2022-12-14 09:57:54,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:54,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:57:54,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:57:54,292 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:57:54,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:57:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:54,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 09:57:54,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:57:54,386 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 09:57:54,407 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:57:54,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:57:54,414 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:57:54,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:57:54,479 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:57:54,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261388667] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:57:54,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2042991213] [2022-12-14 09:57:54,482 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 09:57:54,482 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:57:54,482 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:57:54,482 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:57:54,482 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:57:54,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,506 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 09:57:54,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,519 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 09:57:54,526 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 09:57:54,531 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 09:57:54,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,543 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 09:57:54,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,550 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 09:57:54,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,558 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 09:57:54,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,582 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 09:57:54,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,592 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 09:57:54,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,600 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 09:57:54,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,624 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 22 treesize of output 30 [2022-12-14 09:57:54,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,651 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 26 treesize of output 28 [2022-12-14 09:57:54,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,664 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 31 [2022-12-14 09:57:54,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,677 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 26 treesize of output 28 [2022-12-14 09:57:54,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,699 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 35 treesize of output 40 [2022-12-14 09:57:54,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,713 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 41 treesize of output 31 [2022-12-14 09:57:54,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,727 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 35 treesize of output 40 [2022-12-14 09:57:54,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,761 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 44 treesize of output 52 [2022-12-14 09:57:54,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,771 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 09:57:54,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,781 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 44 treesize of output 52 [2022-12-14 09:57:54,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:54,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:54,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,859 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 09:57:54,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 341 treesize of output 327 [2022-12-14 09:57:54,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,870 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:54,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,887 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 09:57:54,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 335 treesize of output 328 [2022-12-14 09:57:54,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:54,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:54,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:54,913 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 09:57:54,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 341 treesize of output 327 [2022-12-14 09:57:55,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,060 INFO L321 Elim1Store]: treesize reduction 118, result has 15.7 percent of original size [2022-12-14 09:57:55,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 396 treesize of output 399 [2022-12-14 09:57:55,144 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,169 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-12-14 09:57:55,170 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 11 case distinctions, treesize of input 437 treesize of output 345 [2022-12-14 09:57:55,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,218 INFO L321 Elim1Store]: treesize reduction 78, result has 21.2 percent of original size [2022-12-14 09:57:55,218 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 437 treesize of output 438 [2022-12-14 09:57:55,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,247 INFO L321 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2022-12-14 09:57:55,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 450 treesize of output 429 [2022-12-14 09:57:55,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,345 INFO L321 Elim1Store]: treesize reduction 66, result has 20.5 percent of original size [2022-12-14 09:57:55,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 446 treesize of output 357 [2022-12-14 09:57:55,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,369 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,375 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 09:57:55,375 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 5 case distinctions, treesize of input 454 treesize of output 429 [2022-12-14 09:57:55,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,417 INFO L321 Elim1Store]: treesize reduction 102, result has 18.4 percent of original size [2022-12-14 09:57:55,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 446 treesize of output 450 [2022-12-14 09:57:55,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,506 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,523 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-12-14 09:57:55,524 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 455 treesize of output 369 [2022-12-14 09:57:55,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,547 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 09:57:55,547 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 5 case distinctions, treesize of input 454 treesize of output 429 [2022-12-14 09:57:55,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,563 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,564 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:57:55,580 INFO L321 Elim1Store]: treesize reduction 107, result has 10.8 percent of original size [2022-12-14 09:57:55,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 455 treesize of output 462 [2022-12-14 09:57:55,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:57:55,663 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 09:57:55,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:57:55,685 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:57:55,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 09:57:55,701 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:57:55,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:57:55,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:57:55,715 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 25 treesize of output 13 [2022-12-14 09:57:55,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:57:55,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,729 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:57:55,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:57:55,741 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 29 treesize of output 13 [2022-12-14 09:57:55,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-12-14 09:57:55,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,761 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 30 treesize of output 32 [2022-12-14 09:57:55,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:55,769 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 30 treesize of output 32 [2022-12-14 09:57:55,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:57:55,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:57:55,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:57:55,856 INFO L321 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2022-12-14 09:57:55,856 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 136 treesize of output 152 [2022-12-14 09:57:55,958 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:57:55,959 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:57:55,985 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:57:55,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:57:56,027 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 09:57:56,048 INFO L321 Elim1Store]: treesize reduction 78, result has 21.2 percent of original size [2022-12-14 09:57:56,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 245 treesize of output 229 [2022-12-14 09:57:56,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:57:56,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:56,109 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 09:57:56,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:56,114 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 09:57:56,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:56,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:56,131 INFO L321 Elim1Store]: treesize reduction 65, result has 12.2 percent of original size [2022-12-14 09:57:56,131 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 253 treesize of output 229 [2022-12-14 09:57:56,166 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:57:56,663 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4675#(and (not (= |ULTIMATE.start_create_tree_~nodelast~0#1.base| 0)) (= |ULTIMATE.start_create_tree_~node~0#1.offset| 0) (= |ULTIMATE.start_create_tree_~nodelast~0#1.offset| 0) (= |#NULL.offset| 0) (not (= (select |#valid| |ULTIMATE.start_create_tree_~nodelast~0#1.base|) 1)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 09:57:56,664 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:57:56,664 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:57:56,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 6 [2022-12-14 09:57:56,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061500206] [2022-12-14 09:57:56,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:57:56,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 09:57:56,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:57:56,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 09:57:56,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-12-14 09:57:56,665 INFO L87 Difference]: Start difference. First operand 135 states and 148 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:56,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:57:56,773 INFO L93 Difference]: Finished difference Result 175 states and 190 transitions. [2022-12-14 09:57:56,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:57:56,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 09:57:56,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:57:56,774 INFO L225 Difference]: With dead ends: 175 [2022-12-14 09:57:56,774 INFO L226 Difference]: Without dead ends: 175 [2022-12-14 09:57:56,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-12-14 09:57:56,775 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 133 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:57:56,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 236 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 09:57:56,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-12-14 09:57:56,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 134. [2022-12-14 09:57:56,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 82 states have (on average 1.7560975609756098) internal successors, (144), 132 states have internal predecessors, (144), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 147 transitions. [2022-12-14 09:57:56,779 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 147 transitions. Word has length 22 [2022-12-14 09:57:56,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:57:56,780 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 147 transitions. [2022-12-14 09:57:56,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:57:56,780 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 147 transitions. [2022-12-14 09:57:56,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 09:57:56,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:57:56,780 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-12-14 09:57:56,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 09:57:56,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 09:57:56,982 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:57:56,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:57:56,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1885963905, now seen corresponding path program 1 times [2022-12-14 09:57:56,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:57:56,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101690552] [2022-12-14 09:57:56,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:56,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:57:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:57:57,130 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:57:57,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101690552] [2022-12-14 09:57:57,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101690552] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:57:57,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105932885] [2022-12-14 09:57:57,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:57:57,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:57:57,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:57:57,132 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:57:57,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 09:57:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:57:57,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 09:57:57,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:57:57,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 09:57:57,232 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 09:57:57,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:57:57,271 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 14 [2022-12-14 09:57:57,278 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 09:57:57,278 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 09:57:57,287 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:57:57,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:58:05,468 WARN L233 SmtUtils]: Spent 6.07s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 09:58:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 09:58:05,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105932885] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 09:58:05,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [446068969] [2022-12-14 09:58:05,516 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 09:58:05,516 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:58:05,520 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:58:05,521 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:58:05,521 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:58:05,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,537 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 09:58:05,547 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 09:58:05,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,554 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 09:58:05,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:58:05,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 09:58:05,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,576 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 09:58:05,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,583 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 09:58:05,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 09:58:05,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,614 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 09:58:05,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,622 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 09:58:05,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,645 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 09:58:05,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,665 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 09:58:05,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,674 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 09:58:05,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,685 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 09:58:05,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,708 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 09:58:05,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,723 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 09:58:05,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,737 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 09:58:05,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,763 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2022-12-14 09:58:05,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,778 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 46 treesize of output 54 [2022-12-14 09:58:05,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,794 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 46 treesize of output 54 [2022-12-14 09:58:05,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,871 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:05,872 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:05,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,880 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 09:58:05,881 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 349 treesize of output 335 [2022-12-14 09:58:05,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:05,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:05,906 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 09:58:05,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 349 treesize of output 335 [2022-12-14 09:58:05,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:05,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:05,931 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 09:58:05,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 343 treesize of output 334 [2022-12-14 09:58:06,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,081 INFO L321 Elim1Store]: treesize reduction 118, result has 15.7 percent of original size [2022-12-14 09:58:06,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 475 treesize of output 470 [2022-12-14 09:58:06,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:06,206 INFO L321 Elim1Store]: treesize reduction 270, result has 15.9 percent of original size [2022-12-14 09:58:06,206 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 13 case distinctions, treesize of input 516 treesize of output 418 [2022-12-14 09:58:06,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,255 INFO L321 Elim1Store]: treesize reduction 166, result has 14.9 percent of original size [2022-12-14 09:58:06,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 529 treesize of output 500 [2022-12-14 09:58:06,271 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:06,317 INFO L321 Elim1Store]: treesize reduction 280, result has 14.4 percent of original size [2022-12-14 09:58:06,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 516 treesize of output 472 [2022-12-14 09:58:06,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,377 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:06,383 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:06,442 INFO L321 Elim1Store]: treesize reduction 338, result has 13.6 percent of original size [2022-12-14 09:58:06,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 525 treesize of output 430 [2022-12-14 09:58:06,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,461 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:06,462 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:06,515 INFO L321 Elim1Store]: treesize reduction 356, result has 12.1 percent of original size [2022-12-14 09:58:06,515 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 525 treesize of output 484 [2022-12-14 09:58:06,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,560 INFO L321 Elim1Store]: treesize reduction 149, result has 12.4 percent of original size [2022-12-14 09:58:06,560 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 6 case distinctions, treesize of input 533 treesize of output 500 [2022-12-14 09:58:06,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,684 INFO L321 Elim1Store]: treesize reduction 149, result has 12.4 percent of original size [2022-12-14 09:58:06,684 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 6 case distinctions, treesize of input 533 treesize of output 500 [2022-12-14 09:58:06,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:06,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:06,780 INFO L321 Elim1Store]: treesize reduction 386, result has 10.2 percent of original size [2022-12-14 09:58:06,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 7 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 534 treesize of output 442 [2022-12-14 09:58:06,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:06,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:06,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 09:58:06,847 INFO L321 Elim1Store]: treesize reduction 406, result has 9.0 percent of original size [2022-12-14 09:58:06,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 22 case distinctions, treesize of input 534 treesize of output 496 [2022-12-14 09:58:06,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:58:06,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:58:06,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:58:06,952 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 09:58:06,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-14 09:58:06,971 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:58:06,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:58:06,983 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 23 treesize of output 11 [2022-12-14 09:58:06,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:58:06,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:58:07,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:58:07,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:07,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:58:07,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:07,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 09:58:07,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:07,041 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 30 treesize of output 32 [2022-12-14 09:58:07,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:07,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 09:58:07,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:07,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:58:07,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:58:07,080 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 09:58:07,084 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 09:58:07,163 INFO L321 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2022-12-14 09:58:07,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 136 treesize of output 152 [2022-12-14 09:58:07,268 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 09:58:07,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 09:58:07,283 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-12-14 09:58:07,283 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 1 [2022-12-14 09:58:07,314 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 09:58:07,329 INFO L321 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2022-12-14 09:58:07,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 193 treesize of output 183 [2022-12-14 09:58:07,353 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 09:58:07,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:07,377 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 09:58:07,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:07,381 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 09:58:07,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:07,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:07,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:58:07,393 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:58:07,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 298 treesize of output 272 [2022-12-14 09:58:07,425 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 09:58:07,964 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5130#(and (not (= |ULTIMATE.start_create_tree_~nodelast~0#1.base| 0)) (= |ULTIMATE.start_create_tree_~node~0#1.offset| 0) (< (select |#length| |ULTIMATE.start_create_tree_~nodelast~0#1.base|) (+ |ULTIMATE.start_create_tree_~nodelast~0#1.offset| 12)) (= |ULTIMATE.start_create_tree_~nodelast~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 09:58:07,964 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 09:58:07,964 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 09:58:07,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-12-14 09:58:07,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65128758] [2022-12-14 09:58:07,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 09:58:07,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 09:58:07,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:58:07,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 09:58:07,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-12-14 09:58:07,965 INFO L87 Difference]: Start difference. First operand 134 states and 147 transitions. Second operand has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 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 09:58:08,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:58:08,142 INFO L93 Difference]: Finished difference Result 174 states and 189 transitions. [2022-12-14 09:58:08,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:58:08,143 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 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 09:58:08,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:58:08,143 INFO L225 Difference]: With dead ends: 174 [2022-12-14 09:58:08,143 INFO L226 Difference]: Without dead ends: 174 [2022-12-14 09:58:08,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2022-12-14 09:58:08,144 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 316 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:58:08,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 164 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 09:58:08,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-12-14 09:58:08,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 125. [2022-12-14 09:58:08,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 74 states have (on average 1.7972972972972974) internal successors, (133), 123 states have internal predecessors, (133), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 09:58:08,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 136 transitions. [2022-12-14 09:58:08,146 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 136 transitions. Word has length 22 [2022-12-14 09:58:08,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:58:08,146 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 136 transitions. [2022-12-14 09:58:08,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.5) internal successors, (36), 9 states have internal predecessors, (36), 0 states have call successors, (0), 0 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 09:58:08,146 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 136 transitions. [2022-12-14 09:58:08,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 09:58:08,146 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:58:08,146 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:58:08,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 09:58:08,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:58:08,348 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2022-12-14 09:58:08,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:58:08,349 INFO L85 PathProgramCache]: Analyzing trace with hash -473051705, now seen corresponding path program 1 times [2022-12-14 09:58:08,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:58:08,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042038239] [2022-12-14 09:58:08,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:58:08,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:58:08,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:58:08,754 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:58:08,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:58:08,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042038239] [2022-12-14 09:58:08,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042038239] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:58:08,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531551167] [2022-12-14 09:58:08,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:58:08,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:58:08,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:58:08,755 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:58:08,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_954e8129-c6b5-4a48-97ce-d83b15b5bafa/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 09:58:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:58:08,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 48 conjunts are in the unsatisfiable core [2022-12-14 09:58:08,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:58:08,869 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 09:58:08,882 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 09:58:08,886 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 09:58:08,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 09:58:08,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 09:58:08,932 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 09:58:08,932 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 09:58:08,942 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 09:58:08,946 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 09:58:08,989 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 09:58:08,989 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 38 treesize of output 37 [2022-12-14 09:58:08,994 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 09:58:09,035 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 09:58:09,036 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 38 treesize of output 37 [2022-12-14 09:58:09,041 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 09:58:09,082 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 09:58:09,082 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 38 treesize of output 37 [2022-12-14 09:58:09,088 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 09:58:09,130 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 09:58:09,131 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 38 treesize of output 37 [2022-12-14 09:58:09,136 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 09:58:09,143 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 09:58:09,146 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:58:09,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 09:58:09,149 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 09:58:09,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:58:09,161 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_766 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_#t~mem15#1.base| v_ArrVal_766) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse0) 0)) (forall ((v_ArrVal_765 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_tree_#t~mem15#1.base| v_ArrVal_765) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse0) 0)))) is different from false [2022-12-14 09:58:09,167 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_765 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_765) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_766 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_766) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse1) 0)))) is different from false [2022-12-14 09:58:09,315 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_766 (Array Int Int)) (v_ArrVal_761 (Array Int Int)) (v_ArrVal_764 (Array Int Int))) (= (select (select (let ((.cse0 (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_#t~mem13#1.base| v_ArrVal_761))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_764)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_766)) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_765 (Array Int Int)) (v_ArrVal_762 (Array Int Int)) (v_ArrVal_761 (Array Int Int)) (v_ArrVal_764 (Array Int Int)) (v_ArrVal_763 (Array Int Int))) (= (select (select (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_#t~mem13#1.base| v_ArrVal_761))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|))) (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_tree_#t~mem13#1.base| v_ArrVal_762) .cse3 v_ArrVal_763) (select (select (store .cse4 .cse3 v_ArrVal_764) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_765))) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse2) 0)))) is different from false [2022-12-14 09:58:09,326 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|)) (.cse3 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_766 (Array Int Int)) (v_ArrVal_761 (Array Int Int)) (v_ArrVal_764 (Array Int Int))) (= (select (select (let ((.cse0 (let ((.cse1 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_761))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_764)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_766)) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse3) 0)) (forall ((v_ArrVal_765 (Array Int Int)) (v_ArrVal_762 (Array Int Int)) (v_ArrVal_761 (Array Int Int)) (v_ArrVal_764 (Array Int Int)) (v_ArrVal_763 (Array Int Int))) (= (select (select (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_761))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|))) (store (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_762) .cse4 v_ArrVal_763) (select (select (store .cse5 .cse4 v_ArrVal_764) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_765))) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse3) 0)))) is different from false [2022-12-14 09:58:09,523 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|)) (.cse5 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_765 (Array Int Int)) (v_ArrVal_759 (Array Int Int)) (v_ArrVal_760 (Array Int Int)) (v_ArrVal_762 (Array Int Int)) (v_ArrVal_761 (Array Int Int)) (v_ArrVal_764 (Array Int Int)) (v_ArrVal_763 (Array Int Int))) (= (select (select (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_759))) (let ((.cse1 (select (select .cse4 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|))) (let ((.cse3 (store .cse4 .cse1 v_ArrVal_761))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|))) (store (store (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_760) .cse1 v_ArrVal_762) .cse2 v_ArrVal_763) (select (select (store .cse3 .cse2 v_ArrVal_764) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_765))))) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse5) 0)) (forall ((v_ArrVal_766 (Array Int Int)) (v_ArrVal_759 (Array Int Int)) (v_ArrVal_761 (Array Int Int)) (v_ArrVal_764 (Array Int Int))) (= (select (select (let ((.cse6 (let ((.cse7 (let ((.cse8 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_759))) (store .cse8 (select (select .cse8 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_761)))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_764)))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_766)) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse5) 0)))) is different from false [2022-12-14 09:58:11,249 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:58:11,250 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 3 case distinctions, treesize of input 226 treesize of output 111 [2022-12-14 09:58:11,277 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:58:11,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 410022 treesize of output 301684 [2022-12-14 09:58:21,979 WARN L233 SmtUtils]: Spent 10.70s on a formula simplification. DAG size of input: 313 DAG size of output: 304 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 09:58:22,558 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:58:22,559 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 167834 treesize of output 153558 [2022-12-14 09:58:23,144 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:58:23,145 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 153558 treesize of output 150614 [2022-12-14 09:58:23,724 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 09:58:23,724 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 150614 treesize of output 136130 [2022-12-14 09:58:24,307 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 136130 treesize of output 135618