./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/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 b05b18c0458ef705f828769f88cc2a590589ce4d5c3f0e48f99be90a949f7ed4 --- 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 13:37:24,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:37:24,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:37:24,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:37:24,812 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:37:24,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:37:24,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:37:24,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:37:24,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:37:24,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:37:24,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:37:24,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:37:24,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:37:24,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:37:24,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:37:24,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:37:24,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:37:24,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:37:24,826 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:37:24,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:37:24,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:37:24,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:37:24,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:37:24,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:37:24,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:37:24,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:37:24,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:37:24,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:37:24,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:37:24,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:37:24,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:37:24,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:37:24,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:37:24,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:37:24,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:37:24,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:37:24,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:37:24,843 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:37:24,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:37:24,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:37:24,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:37:24,845 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 13:37:24,864 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:37:24,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:37:24,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:37:24,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:37:24,865 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:37:24,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:37:24,866 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:37:24,866 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:37:24,866 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:37:24,866 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:37:24,866 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:37:24,867 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:37:24,867 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:37:24,867 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:37:24,867 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:37:24,867 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:37:24,867 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:37:24,867 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:37:24,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 13:37:24,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 13:37:24,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:37:24,868 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:37:24,868 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:37:24,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:37:24,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:37:24,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:37:24,869 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 13:37:24,869 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 13:37:24,870 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 13:37:24,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:37:24,870 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:37:24,870 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:37:24,870 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:37:24,870 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:37:24,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:37:24,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:37:24,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:37:24,871 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:37:24,871 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:37:24,871 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:37:24,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:37:24,872 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:37:24,872 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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b05b18c0458ef705f828769f88cc2a590589ce4d5c3f0e48f99be90a949f7ed4 [2022-12-14 13:37:25,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:37:25,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:37:25,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:37:25,060 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:37:25,060 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:37:25,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i [2022-12-14 13:37:27,670 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:37:27,847 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:37:27,847 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i [2022-12-14 13:37:27,856 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/data/15856721c/173b636a0e7640e186159b0af3c7422a/FLAGc0827ec3d [2022-12-14 13:37:27,866 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/data/15856721c/173b636a0e7640e186159b0af3c7422a [2022-12-14 13:37:27,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:37:27,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:37:27,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:37:27,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:37:27,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:37:27,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:37:27" (1/1) ... [2022-12-14 13:37:27,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225f15bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:27, skipping insertion in model container [2022-12-14 13:37:27,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:37:27" (1/1) ... [2022-12-14 13:37:27,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:37:27,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:37:28,071 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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22534,22547] [2022-12-14 13:37:28,075 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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22606,22619] [2022-12-14 13:37:28,075 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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22746,22759] [2022-12-14 13:37:28,076 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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22820,22833] [2022-12-14 13:37:28,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:37:28,087 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:37:28,110 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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22534,22547] [2022-12-14 13:37:28,111 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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22606,22619] [2022-12-14 13:37:28,112 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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22746,22759] [2022-12-14 13:37:28,112 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_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22820,22833] [2022-12-14 13:37:28,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:37:28,130 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:37:28,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28 WrapperNode [2022-12-14 13:37:28,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:37:28,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:37:28,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:37:28,132 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:37:28,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (1/1) ... [2022-12-14 13:37:28,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (1/1) ... [2022-12-14 13:37:28,160 INFO L138 Inliner]: procedures = 119, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 134 [2022-12-14 13:37:28,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:37:28,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:37:28,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:37:28,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:37:28,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (1/1) ... [2022-12-14 13:37:28,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (1/1) ... [2022-12-14 13:37:28,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (1/1) ... [2022-12-14 13:37:28,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (1/1) ... [2022-12-14 13:37:28,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (1/1) ... [2022-12-14 13:37:28,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (1/1) ... [2022-12-14 13:37:28,180 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (1/1) ... [2022-12-14 13:37:28,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (1/1) ... [2022-12-14 13:37:28,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:37:28,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:37:28,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:37:28,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:37:28,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (1/1) ... [2022-12-14 13:37:28,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:37:28,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:37:28,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:37:28,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:37:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:37:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:37:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 13:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 13:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 13:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:37:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:37:28,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:37:28,322 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:37:28,323 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:37:28,602 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:37:28,660 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:37:28,661 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-12-14 13:37:28,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:37:28 BoogieIcfgContainer [2022-12-14 13:37:28,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:37:28,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:37:28,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:37:28,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:37:28,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:37:27" (1/3) ... [2022-12-14 13:37:28,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12245e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:37:28, skipping insertion in model container [2022-12-14 13:37:28,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:37:28" (2/3) ... [2022-12-14 13:37:28,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12245e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:37:28, skipping insertion in model container [2022-12-14 13:37:28,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:37:28" (3/3) ... [2022-12-14 13:37:28,669 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-rb-sentinel-1.i [2022-12-14 13:37:28,684 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:37:28,684 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2022-12-14 13:37:28,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:37:28,723 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;@dfefcfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:37:28,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2022-12-14 13:37:28,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 56 states have (on average 2.4285714285714284) internal successors, (136), 117 states have internal predecessors, (136), 0 states have call successors, (0), 0 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 13:37:28,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 13:37:28,733 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:28,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 13:37:28,733 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:28,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:28,737 INFO L85 PathProgramCache]: Analyzing trace with hash 8374, now seen corresponding path program 1 times [2022-12-14 13:37:28,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:28,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723424410] [2022-12-14 13:37:28,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:28,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:28,889 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 13:37:28,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:28,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723424410] [2022-12-14 13:37:28,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723424410] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:28,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:28,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 13:37:28,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720929296] [2022-12-14 13:37:28,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:28,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:37:28,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:28,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:37:28,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:37:28,920 INFO L87 Difference]: Start difference. First operand has 118 states, 56 states have (on average 2.4285714285714284) internal successors, (136), 117 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:29,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:29,045 INFO L93 Difference]: Finished difference Result 144 states and 151 transitions. [2022-12-14 13:37:29,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:37:29,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-12-14 13:37:29,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:29,054 INFO L225 Difference]: With dead ends: 144 [2022-12-14 13:37:29,054 INFO L226 Difference]: Without dead ends: 143 [2022-12-14 13:37:29,055 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 13:37:29,057 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 102 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:29,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 80 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:29,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-12-14 13:37:29,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 119. [2022-12-14 13:37:29,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 60 states have (on average 2.1166666666666667) internal successors, (127), 118 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:29,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 127 transitions. [2022-12-14 13:37:29,084 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 127 transitions. Word has length 2 [2022-12-14 13:37:29,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:29,085 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 127 transitions. [2022-12-14 13:37:29,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:29,085 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 127 transitions. [2022-12-14 13:37:29,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 13:37:29,085 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:29,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-12-14 13:37:29,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:37:29,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:29,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:29,087 INFO L85 PathProgramCache]: Analyzing trace with hash 8375, now seen corresponding path program 1 times [2022-12-14 13:37:29,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:29,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775331290] [2022-12-14 13:37:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:29,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:29,147 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 13:37:29,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:29,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775331290] [2022-12-14 13:37:29,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775331290] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:29,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:29,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 13:37:29,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909909209] [2022-12-14 13:37:29,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:29,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:37:29,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:29,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:37:29,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:37:29,150 INFO L87 Difference]: Start difference. First operand 119 states and 127 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:29,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:29,229 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2022-12-14 13:37:29,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:37:29,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2022-12-14 13:37:29,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:29,231 INFO L225 Difference]: With dead ends: 116 [2022-12-14 13:37:29,231 INFO L226 Difference]: Without dead ends: 116 [2022-12-14 13:37:29,231 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 13:37:29,232 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 113 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:29,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 60 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:29,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-12-14 13:37:29,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-12-14 13:37:29,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 60 states have (on average 2.05) internal successors, (123), 115 states have internal predecessors, (123), 0 states have call successors, (0), 0 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 13:37:29,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 123 transitions. [2022-12-14 13:37:29,237 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 123 transitions. Word has length 2 [2022-12-14 13:37:29,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:29,237 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 123 transitions. [2022-12-14 13:37:29,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:29,238 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 123 transitions. [2022-12-14 13:37:29,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 13:37:29,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:29,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 13:37:29,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 13:37:29,238 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:29,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:29,239 INFO L85 PathProgramCache]: Analyzing trace with hash 8054028, now seen corresponding path program 1 times [2022-12-14 13:37:29,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:29,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893695532] [2022-12-14 13:37:29,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:29,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:29,295 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 13:37:29,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:29,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893695532] [2022-12-14 13:37:29,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893695532] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:29,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:29,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:37:29,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932584459] [2022-12-14 13:37:29,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:29,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:37:29,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:29,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:37:29,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:37:29,297 INFO L87 Difference]: Start difference. First operand 116 states and 123 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 13:37:29,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:29,368 INFO L93 Difference]: Finished difference Result 113 states and 119 transitions. [2022-12-14 13:37:29,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:37:29,368 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 13:37:29,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:29,369 INFO L225 Difference]: With dead ends: 113 [2022-12-14 13:37:29,369 INFO L226 Difference]: Without dead ends: 113 [2022-12-14 13:37:29,369 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 13:37:29,370 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 91 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:29,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 66 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:29,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-12-14 13:37:29,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2022-12-14 13:37:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 61 states have (on average 1.9508196721311475) internal successors, (119), 110 states have internal predecessors, (119), 0 states have call successors, (0), 0 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 13:37:29,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 119 transitions. [2022-12-14 13:37:29,374 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 119 transitions. Word has length 4 [2022-12-14 13:37:29,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:29,374 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 119 transitions. [2022-12-14 13:37:29,374 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 13:37:29,375 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 119 transitions. [2022-12-14 13:37:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 13:37:29,375 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:29,375 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 13:37:29,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 13:37:29,375 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:29,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:29,375 INFO L85 PathProgramCache]: Analyzing trace with hash 8054029, now seen corresponding path program 1 times [2022-12-14 13:37:29,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:29,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940106116] [2022-12-14 13:37:29,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:29,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:29,475 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 13:37:29,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:29,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940106116] [2022-12-14 13:37:29,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940106116] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:29,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:29,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:37:29,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329234119] [2022-12-14 13:37:29,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:29,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:37:29,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:29,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:37:29,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:37:29,477 INFO L87 Difference]: Start difference. First operand 111 states and 119 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 13:37:29,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:29,561 INFO L93 Difference]: Finished difference Result 126 states and 132 transitions. [2022-12-14 13:37:29,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:37:29,562 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 13:37:29,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:29,563 INFO L225 Difference]: With dead ends: 126 [2022-12-14 13:37:29,563 INFO L226 Difference]: Without dead ends: 126 [2022-12-14 13:37:29,563 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 13:37:29,564 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 89 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:29,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 74 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:29,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-12-14 13:37:29,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 114. [2022-12-14 13:37:29,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 66 states have (on average 1.8484848484848484) internal successors, (122), 113 states have internal predecessors, (122), 0 states have call successors, (0), 0 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 13:37:29,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 122 transitions. [2022-12-14 13:37:29,571 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 122 transitions. Word has length 4 [2022-12-14 13:37:29,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:29,571 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 122 transitions. [2022-12-14 13:37:29,571 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 13:37:29,571 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 122 transitions. [2022-12-14 13:37:29,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:37:29,571 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:29,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:29,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 13:37:29,572 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:29,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:29,572 INFO L85 PathProgramCache]: Analyzing trace with hash -812908213, now seen corresponding path program 1 times [2022-12-14 13:37:29,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:29,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298980309] [2022-12-14 13:37:29,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:29,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:29,687 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 13:37:29,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:29,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298980309] [2022-12-14 13:37:29,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298980309] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:29,688 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:29,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:37:29,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925473179] [2022-12-14 13:37:29,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:29,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:37:29,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:29,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:37:29,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:37:29,689 INFO L87 Difference]: Start difference. First operand 114 states and 122 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 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 13:37:29,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:29,786 INFO L93 Difference]: Finished difference Result 116 states and 126 transitions. [2022-12-14 13:37:29,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:37:29,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-12-14 13:37:29,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:29,787 INFO L225 Difference]: With dead ends: 116 [2022-12-14 13:37:29,788 INFO L226 Difference]: Without dead ends: 116 [2022-12-14 13:37:29,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:37:29,788 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 139 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:29,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 59 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:29,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-12-14 13:37:29,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 105. [2022-12-14 13:37:29,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.6911764705882353) internal successors, (115), 104 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:29,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2022-12-14 13:37:29,793 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 8 [2022-12-14 13:37:29,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:29,793 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2022-12-14 13:37:29,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 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 13:37:29,793 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2022-12-14 13:37:29,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:37:29,793 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:29,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:29,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 13:37:29,794 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:29,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:29,794 INFO L85 PathProgramCache]: Analyzing trace with hash -812908212, now seen corresponding path program 1 times [2022-12-14 13:37:29,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:29,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226509074] [2022-12-14 13:37:29,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:29,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:29,898 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 13:37:29,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:29,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226509074] [2022-12-14 13:37:29,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226509074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:29,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:29,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 13:37:29,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811284253] [2022-12-14 13:37:29,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:29,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 13:37:29,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:29,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 13:37:29,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 13:37:29,900 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 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 13:37:30,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:30,025 INFO L93 Difference]: Finished difference Result 135 states and 145 transitions. [2022-12-14 13:37:30,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 13:37:30,025 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2022-12-14 13:37:30,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:30,026 INFO L225 Difference]: With dead ends: 135 [2022-12-14 13:37:30,026 INFO L226 Difference]: Without dead ends: 135 [2022-12-14 13:37:30,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:37:30,027 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 127 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:30,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 82 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:30,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-12-14 13:37:30,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 111. [2022-12-14 13:37:30,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 75 states have (on average 1.6266666666666667) internal successors, (122), 110 states have internal predecessors, (122), 0 states have call successors, (0), 0 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 13:37:30,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 122 transitions. [2022-12-14 13:37:30,031 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 122 transitions. Word has length 8 [2022-12-14 13:37:30,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:30,032 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 122 transitions. [2022-12-14 13:37:30,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 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 13:37:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 122 transitions. [2022-12-14 13:37:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 13:37:30,032 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:30,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:30,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 13:37:30,033 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:30,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:30,033 INFO L85 PathProgramCache]: Analyzing trace with hash 479237399, now seen corresponding path program 1 times [2022-12-14 13:37:30,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:30,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691389890] [2022-12-14 13:37:30,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:30,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:30,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:30,083 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 13:37:30,083 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:30,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691389890] [2022-12-14 13:37:30,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691389890] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:30,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:30,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:37:30,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494701898] [2022-12-14 13:37:30,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:30,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:37:30,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:30,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:37:30,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:37:30,085 INFO L87 Difference]: Start difference. First operand 111 states and 122 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 13:37:30,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:30,217 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2022-12-14 13:37:30,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:37:30,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 13:37:30,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:30,219 INFO L225 Difference]: With dead ends: 144 [2022-12-14 13:37:30,219 INFO L226 Difference]: Without dead ends: 144 [2022-12-14 13:37:30,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:37:30,220 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 200 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:30,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 105 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:30,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-12-14 13:37:30,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 112. [2022-12-14 13:37:30,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 77 states have (on average 1.5974025974025974) internal successors, (123), 111 states have internal predecessors, (123), 0 states have call successors, (0), 0 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 13:37:30,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 123 transitions. [2022-12-14 13:37:30,224 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 123 transitions. Word has length 10 [2022-12-14 13:37:30,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:30,224 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 123 transitions. [2022-12-14 13:37:30,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 13:37:30,225 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 123 transitions. [2022-12-14 13:37:30,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 13:37:30,225 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:30,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:30,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 13:37:30,225 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:30,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:30,226 INFO L85 PathProgramCache]: Analyzing trace with hash 479463659, now seen corresponding path program 1 times [2022-12-14 13:37:30,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:30,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232329219] [2022-12-14 13:37:30,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:30,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:30,305 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 13:37:30,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:30,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232329219] [2022-12-14 13:37:30,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232329219] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:30,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:30,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:37:30,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939859075] [2022-12-14 13:37:30,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:30,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:37:30,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:30,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:37:30,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:37:30,307 INFO L87 Difference]: Start difference. First operand 112 states and 123 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 13:37:30,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:30,416 INFO L93 Difference]: Finished difference Result 111 states and 122 transitions. [2022-12-14 13:37:30,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:37:30,417 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 13:37:30,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:30,418 INFO L225 Difference]: With dead ends: 111 [2022-12-14 13:37:30,418 INFO L226 Difference]: Without dead ends: 111 [2022-12-14 13:37:30,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:37:30,419 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 37 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:30,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 158 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:30,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-12-14 13:37:30,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-12-14 13:37:30,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 77 states have (on average 1.5844155844155845) internal successors, (122), 110 states have internal predecessors, (122), 0 states have call successors, (0), 0 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 13:37:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 122 transitions. [2022-12-14 13:37:30,422 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 122 transitions. Word has length 10 [2022-12-14 13:37:30,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:30,422 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 122 transitions. [2022-12-14 13:37:30,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 13:37:30,422 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 122 transitions. [2022-12-14 13:37:30,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 13:37:30,423 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:30,423 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:30,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 13:37:30,423 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:30,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:30,424 INFO L85 PathProgramCache]: Analyzing trace with hash 479463660, now seen corresponding path program 1 times [2022-12-14 13:37:30,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:30,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460513283] [2022-12-14 13:37:30,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:30,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:30,568 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 13:37:30,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:30,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460513283] [2022-12-14 13:37:30,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460513283] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:30,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:30,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:37:30,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303923863] [2022-12-14 13:37:30,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:30,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:37:30,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:30,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:37:30,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:37:30,570 INFO L87 Difference]: Start difference. First operand 111 states and 122 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 13:37:30,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:30,697 INFO L93 Difference]: Finished difference Result 111 states and 123 transitions. [2022-12-14 13:37:30,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 13:37:30,698 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 13:37:30,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:30,699 INFO L225 Difference]: With dead ends: 111 [2022-12-14 13:37:30,699 INFO L226 Difference]: Without dead ends: 111 [2022-12-14 13:37:30,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:37:30,700 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 10 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:30,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 199 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:30,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-12-14 13:37:30,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2022-12-14 13:37:30,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 105 states have internal predecessors, (117), 0 states have call successors, (0), 0 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 13:37:30,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2022-12-14 13:37:30,702 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 10 [2022-12-14 13:37:30,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:30,703 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2022-12-14 13:37:30,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 13:37:30,703 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2022-12-14 13:37:30,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 13:37:30,703 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:30,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:30,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 13:37:30,704 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:30,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:30,704 INFO L85 PathProgramCache]: Analyzing trace with hash 494053857, now seen corresponding path program 1 times [2022-12-14 13:37:30,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:30,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270858142] [2022-12-14 13:37:30,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:30,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:30,832 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 13:37:30,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:30,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270858142] [2022-12-14 13:37:30,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270858142] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:30,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:30,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 13:37:30,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223317419] [2022-12-14 13:37:30,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:30,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 13:37:30,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:30,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 13:37:30,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-14 13:37:30,834 INFO L87 Difference]: Start difference. First operand 106 states and 117 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 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 13:37:31,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:31,026 INFO L93 Difference]: Finished difference Result 158 states and 174 transitions. [2022-12-14 13:37:31,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 13:37:31,027 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 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 13:37:31,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:31,028 INFO L225 Difference]: With dead ends: 158 [2022-12-14 13:37:31,028 INFO L226 Difference]: Without dead ends: 158 [2022-12-14 13:37:31,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-12-14 13:37:31,028 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 220 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:31,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 156 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:31,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-12-14 13:37:31,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 113. [2022-12-14 13:37:31,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 84 states have (on average 1.4880952380952381) internal successors, (125), 112 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 125 transitions. [2022-12-14 13:37:31,031 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 125 transitions. Word has length 13 [2022-12-14 13:37:31,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:31,032 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 125 transitions. [2022-12-14 13:37:31,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 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 13:37:31,032 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 125 transitions. [2022-12-14 13:37:31,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 13:37:31,032 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:31,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:31,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 13:37:31,033 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:31,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:31,033 INFO L85 PathProgramCache]: Analyzing trace with hash 947851196, now seen corresponding path program 1 times [2022-12-14 13:37:31,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:31,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296744856] [2022-12-14 13:37:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:31,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:31,109 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 13:37:31,109 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:31,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296744856] [2022-12-14 13:37:31,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296744856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:31,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:31,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:37:31,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322572276] [2022-12-14 13:37:31,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:31,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:37:31,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:31,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:37:31,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:37:31,111 INFO L87 Difference]: Start difference. First operand 113 states and 125 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:31,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:31,207 INFO L93 Difference]: Finished difference Result 112 states and 124 transitions. [2022-12-14 13:37:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:37:31,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 13:37:31,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:31,207 INFO L225 Difference]: With dead ends: 112 [2022-12-14 13:37:31,207 INFO L226 Difference]: Without dead ends: 112 [2022-12-14 13:37:31,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 13:37:31,208 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 31 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:31,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 154 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:31,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-12-14 13:37:31,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-12-14 13:37:31,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 84 states have (on average 1.4761904761904763) internal successors, (124), 111 states have internal predecessors, (124), 0 states have call successors, (0), 0 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 13:37:31,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2022-12-14 13:37:31,210 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 15 [2022-12-14 13:37:31,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:31,211 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2022-12-14 13:37:31,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2022-12-14 13:37:31,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 13:37:31,211 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:31,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:31,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 13:37:31,212 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:31,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:31,212 INFO L85 PathProgramCache]: Analyzing trace with hash 947851197, now seen corresponding path program 1 times [2022-12-14 13:37:31,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:31,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815530696] [2022-12-14 13:37:31,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:31,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:31,344 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 13:37:31,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:31,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815530696] [2022-12-14 13:37:31,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815530696] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:31,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:31,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 13:37:31,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049693551] [2022-12-14 13:37:31,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:31,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:37:31,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:31,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:37:31,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:37:31,346 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:31,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:31,435 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2022-12-14 13:37:31,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:37:31,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-12-14 13:37:31,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:31,436 INFO L225 Difference]: With dead ends: 109 [2022-12-14 13:37:31,436 INFO L226 Difference]: Without dead ends: 109 [2022-12-14 13:37:31,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:37:31,436 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 5 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:31,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 196 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:31,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-12-14 13:37:31,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2022-12-14 13:37:31,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 80 states have (on average 1.4375) internal successors, (115), 103 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:31,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 115 transitions. [2022-12-14 13:37:31,438 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 115 transitions. Word has length 15 [2022-12-14 13:37:31,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:31,438 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 115 transitions. [2022-12-14 13:37:31,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:31,438 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 115 transitions. [2022-12-14 13:37:31,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 13:37:31,439 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:31,439 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:31,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 13:37:31,439 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:31,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:31,439 INFO L85 PathProgramCache]: Analyzing trace with hash 405330386, now seen corresponding path program 1 times [2022-12-14 13:37:31,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:31,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577139932] [2022-12-14 13:37:31,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:31,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:31,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:37:31,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:31,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577139932] [2022-12-14 13:37:31,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577139932] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:37:31,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894809918] [2022-12-14 13:37:31,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:31,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:37:31,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:37:31,555 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:37:31,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:37:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:31,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 25 conjunts are in the unsatisfiable core [2022-12-14 13:37:31,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:37:31,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:37:31,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:37:31,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:31,747 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 13:37:31,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:31,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 13:37:31,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 13:37:31,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 13:37:31,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:37:31,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:37:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:37:31,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894809918] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:37:31,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1093498555] [2022-12-14 13:37:31,969 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-12-14 13:37:31,969 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:37:31,973 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:37:31,977 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:37:31,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:37:32,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,012 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 13:37:32,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 13:37:32,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,037 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 13:37:32,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 13:37:32,060 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 13:37:32,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,072 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 13:37:32,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,085 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 39 treesize of output 33 [2022-12-14 13:37:32,094 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 13:37:32,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 13:37:32,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,126 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 13:37:32,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 13:37:32,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 13:37:32,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 13:37:32,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:32,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 13:37:32,389 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:37:33,527 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3147#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1)) (or (not (= |ULTIMATE.start_main_~null~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|)) (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 13:37:33,527 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:37:33,527 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:37:33,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 10 [2022-12-14 13:37:33,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312030098] [2022-12-14 13:37:33,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:37:33,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 13:37:33,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:33,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 13:37:33,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2022-12-14 13:37:33,529 INFO L87 Difference]: Start difference. First operand 104 states and 115 transitions. Second operand has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 13:37:33,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:33,777 INFO L93 Difference]: Finished difference Result 165 states and 181 transitions. [2022-12-14 13:37:33,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 13:37:33,777 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-14 13:37:33,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:33,778 INFO L225 Difference]: With dead ends: 165 [2022-12-14 13:37:33,778 INFO L226 Difference]: Without dead ends: 165 [2022-12-14 13:37:33,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2022-12-14 13:37:33,779 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 307 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:33,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 144 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 13:37:33,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-12-14 13:37:33,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 131. [2022-12-14 13:37:33,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 107 states have (on average 1.439252336448598) internal successors, (154), 130 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:33,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 154 transitions. [2022-12-14 13:37:33,782 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 154 transitions. Word has length 19 [2022-12-14 13:37:33,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:33,782 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 154 transitions. [2022-12-14 13:37:33,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.7) internal successors, (37), 10 states have internal predecessors, (37), 0 states have call successors, (0), 0 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 13:37:33,783 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 154 transitions. [2022-12-14 13:37:33,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 13:37:33,783 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:33,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:33,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:37:33,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 13:37:33,984 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:33,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:33,984 INFO L85 PathProgramCache]: Analyzing trace with hash 404025859, now seen corresponding path program 1 times [2022-12-14 13:37:33,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:33,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426047052] [2022-12-14 13:37:33,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:33,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:34,054 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 13:37:34,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:34,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426047052] [2022-12-14 13:37:34,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426047052] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:34,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:34,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 13:37:34,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010010731] [2022-12-14 13:37:34,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:34,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 13:37:34,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:34,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 13:37:34,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 13:37:34,056 INFO L87 Difference]: Start difference. First operand 131 states and 154 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:34,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:34,139 INFO L93 Difference]: Finished difference Result 128 states and 149 transitions. [2022-12-14 13:37:34,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 13:37:34,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-12-14 13:37:34,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:34,141 INFO L225 Difference]: With dead ends: 128 [2022-12-14 13:37:34,141 INFO L226 Difference]: Without dead ends: 128 [2022-12-14 13:37:34,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 13:37:34,141 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 5 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:34,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 189 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 13:37:34,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-12-14 13:37:34,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2022-12-14 13:37:34,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 127 states have internal predecessors, (149), 0 states have call successors, (0), 0 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 13:37:34,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2022-12-14 13:37:34,145 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 19 [2022-12-14 13:37:34,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:34,145 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2022-12-14 13:37:34,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:34,146 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2022-12-14 13:37:34,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 13:37:34,146 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:34,146 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 13:37:34,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 13:37:34,147 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:34,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:34,147 INFO L85 PathProgramCache]: Analyzing trace with hash -360214418, now seen corresponding path program 1 times [2022-12-14 13:37:34,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:34,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809850194] [2022-12-14 13:37:34,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:34,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:34,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:37:34,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:34,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809850194] [2022-12-14 13:37:34,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809850194] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:37:34,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715733522] [2022-12-14 13:37:34,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:34,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:37:34,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:37:34,508 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:37:34,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 13:37:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:34,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 33 conjunts are in the unsatisfiable core [2022-12-14 13:37:34,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:37:34,594 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 13:37:34,615 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 13:37:34,649 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 13:37:34,650 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 13:37:34,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:34,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 13:37:34,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:37:34,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-12-14 13:37:34,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 13:37:34,753 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 13:37:34,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 13:37:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:37:34,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:37:34,820 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_533 (Array Int Int))) (= ~unnamed1~0~BLACK (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_533) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))) is different from false [2022-12-14 13:37:34,837 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_533 (Array Int Int))) (= ~unnamed1~0~BLACK (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_533) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))) is different from false [2022-12-14 13:37:34,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:34,928 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 13:37:34,928 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 31 [2022-12-14 13:37:34,933 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 36 treesize of output 24 [2022-12-14 13:37:34,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 13:37:34,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:37:34,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715733522] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:37:34,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [12865014] [2022-12-14 13:37:34,955 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-12-14 13:37:34,955 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:37:34,956 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:37:34,956 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:37:34,956 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:37:34,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:34,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:34,973 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 13:37:34,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 13:37:34,990 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 13:37:34,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:34,998 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 13:37:35,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,015 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 13:37:35,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:37:35,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,032 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 39 treesize of output 33 [2022-12-14 13:37:35,041 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 13:37:35,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,060 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 13:37:35,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 13:37:35,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 13:37:35,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 13:37:35,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 13:37:35,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 13:37:35,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,176 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2022-12-14 13:37:35,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,207 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 21 [2022-12-14 13:37:35,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,220 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 26 treesize of output 21 [2022-12-14 13:37:35,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,243 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2022-12-14 13:37:35,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,293 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-12-14 13:37:35,293 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 2 case distinctions, treesize of input 33 treesize of output 31 [2022-12-14 13:37:35,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2022-12-14 13:37:35,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,343 INFO L321 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2022-12-14 13:37:35,343 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 2 case distinctions, treesize of input 81 treesize of output 63 [2022-12-14 13:37:35,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,398 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:35,399 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:35,413 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 13:37:35,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 13:37:35,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,431 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 13:37:35,432 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 2 case distinctions, treesize of input 96 treesize of output 66 [2022-12-14 13:37:35,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,452 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 13:37:35,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,513 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 61 [2022-12-14 13:37:35,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:35,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:35,615 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-12-14 13:37:35,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 461 treesize of output 463 [2022-12-14 13:37:35,629 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:35,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:35,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:35,633 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:35,658 INFO L321 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2022-12-14 13:37:35,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 493 treesize of output 473 [2022-12-14 13:37:35,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:35,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:35,713 INFO L321 Elim1Store]: treesize reduction 53, result has 25.4 percent of original size [2022-12-14 13:37:35,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 489 treesize of output 482 [2022-12-14 13:37:36,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:36,243 INFO L321 Elim1Store]: treesize reduction 192, result has 17.6 percent of original size [2022-12-14 13:37:36,244 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 982 treesize of output 809 [2022-12-14 13:37:36,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:36,312 INFO L321 Elim1Store]: treesize reduction 172, result has 19.2 percent of original size [2022-12-14 13:37:36,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 933 treesize of output 848 [2022-12-14 13:37:36,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:36,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:36,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:36,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:36,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:36,459 INFO L321 Elim1Store]: treesize reduction 402, result has 12.4 percent of original size [2022-12-14 13:37:36,460 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 890 treesize of output 847 [2022-12-14 13:37:37,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:37,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:37,099 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:37,166 INFO L321 Elim1Store]: treesize reduction 232, result has 6.1 percent of original size [2022-12-14 13:37:37,166 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 6 new quantified variables, introduced 12 case distinctions, treesize of input 1860 treesize of output 1531 [2022-12-14 13:37:37,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:37,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:37,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:37,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:37,266 INFO L321 Elim1Store]: treesize reduction 234, result has 17.0 percent of original size [2022-12-14 13:37:37,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 1203 treesize of output 1136 [2022-12-14 13:37:37,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:37,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:37,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:37,319 INFO L321 Elim1Store]: treesize reduction 127, result has 8.0 percent of original size [2022-12-14 13:37:37,320 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 1213 treesize of output 1105 [2022-12-14 13:37:37,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:37,879 INFO L321 Elim1Store]: treesize reduction 388, result has 10.8 percent of original size [2022-12-14 13:37:37,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 26 case distinctions, treesize of input 2104 treesize of output 1970 [2022-12-14 13:37:38,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 13:37:38,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:37:38,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:37:38,136 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 13:37:38,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-12-14 13:37:38,149 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 13:37:38,149 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-12-14 13:37:38,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 13:37:38,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:38,190 INFO L321 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2022-12-14 13:37:38,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 62 [2022-12-14 13:37:38,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:38,207 INFO L321 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2022-12-14 13:37:38,207 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 2 case distinctions, treesize of input 61 treesize of output 54 [2022-12-14 13:37:38,218 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 13:37:38,236 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 13:37:38,236 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 13:37:38,241 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-12-14 13:37:38,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 13:37:38,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:37:38,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:37:38,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 13:37:38,276 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 13:37:38,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-12-14 13:37:38,294 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 13:37:38,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2022-12-14 13:37:38,325 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 13:37:38,341 INFO L321 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2022-12-14 13:37:38,342 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 2 case distinctions, treesize of input 80 treesize of output 65 [2022-12-14 13:37:38,361 INFO L321 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2022-12-14 13:37:38,361 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 2 case distinctions, treesize of input 64 treesize of output 61 [2022-12-14 13:37:38,487 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 13:37:39,768 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3865#(and (<= (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~null~0#1.offset|) (<= 0 |ULTIMATE.start_main_~list~0#1.offset|) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (<= |ULTIMATE.start_main_~list~0#1.offset| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~null~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (not (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |#NULL.base| 0))' at error location [2022-12-14 13:37:39,768 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 13:37:39,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 13:37:39,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 26 [2022-12-14 13:37:39,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948665471] [2022-12-14 13:37:39,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 13:37:39,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-14 13:37:39,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:39,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-14 13:37:39,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1297, Unknown=2, NotChecked=150, Total=1640 [2022-12-14 13:37:39,770 INFO L87 Difference]: Start difference. First operand 128 states and 149 transitions. Second operand has 26 states, 26 states have (on average 2.0) internal successors, (52), 26 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:40,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:40,734 INFO L93 Difference]: Finished difference Result 192 states and 217 transitions. [2022-12-14 13:37:40,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-12-14 13:37:40,734 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.0) internal successors, (52), 26 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 13:37:40,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:40,735 INFO L225 Difference]: With dead ends: 192 [2022-12-14 13:37:40,736 INFO L226 Difference]: Without dead ends: 192 [2022-12-14 13:37:40,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 740 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=428, Invalid=2230, Unknown=2, NotChecked=202, Total=2862 [2022-12-14 13:37:40,737 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 592 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 296 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:40,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 360 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 858 Invalid, 1 Unknown, 296 Unchecked, 0.5s Time] [2022-12-14 13:37:40,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-12-14 13:37:40,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 140. [2022-12-14 13:37:40,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 116 states have (on average 1.4051724137931034) internal successors, (163), 139 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:40,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2022-12-14 13:37:40,739 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 20 [2022-12-14 13:37:40,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:40,739 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2022-12-14 13:37:40,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.0) internal successors, (52), 26 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:40,740 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2022-12-14 13:37:40,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 13:37:40,740 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:40,740 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:40,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 13:37:40,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 13:37:40,941 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:40,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:40,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1695487611, now seen corresponding path program 1 times [2022-12-14 13:37:40,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:40,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536571822] [2022-12-14 13:37:40,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:40,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 13:37:40,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:40,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536571822] [2022-12-14 13:37:40,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536571822] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:37:40,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:37:40,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 13:37:40,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750647288] [2022-12-14 13:37:40,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:37:40,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 13:37:40,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:37:40,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 13:37:40,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 13:37:40,968 INFO L87 Difference]: Start difference. First operand 140 states and 163 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:41,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:37:41,002 INFO L93 Difference]: Finished difference Result 142 states and 162 transitions. [2022-12-14 13:37:41,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 13:37:41,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-12-14 13:37:41,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:37:41,003 INFO L225 Difference]: With dead ends: 142 [2022-12-14 13:37:41,003 INFO L226 Difference]: Without dead ends: 142 [2022-12-14 13:37:41,003 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 13:37:41,004 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 39 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:37:41,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 73 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:37:41,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-12-14 13:37:41,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-12-14 13:37:41,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 118 states have (on average 1.3728813559322033) internal successors, (162), 141 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:41,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 162 transitions. [2022-12-14 13:37:41,007 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 162 transitions. Word has length 24 [2022-12-14 13:37:41,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:37:41,008 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 162 transitions. [2022-12-14 13:37:41,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 13:37:41,008 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 162 transitions. [2022-12-14 13:37:41,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 13:37:41,008 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:37:41,008 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:37:41,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 13:37:41,009 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 58 more)] === [2022-12-14 13:37:41,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:37:41,009 INFO L85 PathProgramCache]: Analyzing trace with hash -2088284808, now seen corresponding path program 1 times [2022-12-14 13:37:41,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:37:41,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160430160] [2022-12-14 13:37:41,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:41,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:37:41,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:41,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:37:41,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:37:41,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160430160] [2022-12-14 13:37:41,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160430160] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 13:37:41,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058761851] [2022-12-14 13:37:41,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:37:41,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:37:41,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:37:41,550 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:37:41,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6226ae80-e86e-4ebb-9b1a-5ed6df53b41e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 13:37:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:37:41,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-14 13:37:41,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 13:37:41,641 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 13:37:41,657 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 13:37:41,686 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 13:37:41,687 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 13:37:41,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:41,708 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 13:37:41,714 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 13:37:41,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-12-14 13:37:41,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 13:37:41,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 13:37:41,783 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 13:37:41,783 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-14 13:37:41,809 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 13:37:41,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 13:37:41,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-12-14 13:37:41,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 13:37:41,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-12-14 13:37:41,908 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 13:37:41,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:37:41,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 13:37:41,966 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_711 (Array Int Int))) (= ~unnamed1~0~BLACK (select (select (store |c_#memory_int| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|) v_ArrVal_711) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))) is different from false [2022-12-14 13:37:42,072 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 13:37:42,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 12 [2022-12-14 13:37:44,212 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:44,216 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 13:37:44,217 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 34 [2022-12-14 13:37:44,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:44,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 24 [2022-12-14 13:37:44,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 13:37:44,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 13:37:44,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058761851] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 13:37:44,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1292474450] [2022-12-14 13:37:44,250 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-12-14 13:37:44,250 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 13:37:44,250 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 13:37:44,250 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 13:37:44,250 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 13:37:44,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,263 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 13:37:44,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 13:37:44,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,281 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 13:37:44,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 13:37:44,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,304 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 13:37:44,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,313 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 39 treesize of output 33 [2022-12-14 13:37:44,320 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 13:37:44,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:37:44,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 13:37:44,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-12-14 13:37:44,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,362 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 13:37:44,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,379 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 13:37:44,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,389 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 13:37:44,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 13:37:44,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-12-14 13:37:44,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,473 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 21 [2022-12-14 13:37:44,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2022-12-14 13:37:44,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,502 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 26 treesize of output 21 [2022-12-14 13:37:44,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,564 INFO L321 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-12-14 13:37:44,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 65 [2022-12-14 13:37:44,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,604 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-12-14 13:37:44,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 63 [2022-12-14 13:37:44,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2022-12-14 13:37:44,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,653 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 13:37:44,653 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 2 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 13:37:44,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:44,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:44,689 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-12-14 13:37:44,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 66 treesize of output 82 [2022-12-14 13:37:44,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,719 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 13:37:44,719 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 2 case distinctions, treesize of input 153 treesize of output 111 [2022-12-14 13:37:44,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 56 [2022-12-14 13:37:44,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 65 [2022-12-14 13:37:44,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2022-12-14 13:37:44,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,830 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 33 treesize of output 31 [2022-12-14 13:37:44,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,908 INFO L321 Elim1Store]: treesize reduction 88, result has 20.0 percent of original size [2022-12-14 13:37:44,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 252 treesize of output 168 [2022-12-14 13:37:44,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 75 [2022-12-14 13:37:44,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2022-12-14 13:37:44,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:44,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,002 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-12-14 13:37:45,002 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 256 treesize of output 164 [2022-12-14 13:37:45,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 84 [2022-12-14 13:37:45,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2022-12-14 13:37:45,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 26 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 71 [2022-12-14 13:37:45,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,242 INFO L321 Elim1Store]: treesize reduction 88, result has 20.0 percent of original size [2022-12-14 13:37:45,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 333 treesize of output 213 [2022-12-14 13:37:45,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 45 [2022-12-14 13:37:45,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 87 [2022-12-14 13:37:45,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,410 INFO L321 Elim1Store]: treesize reduction 136, result has 17.6 percent of original size [2022-12-14 13:37:45,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 431 treesize of output 241 [2022-12-14 13:37:45,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 93 [2022-12-14 13:37:45,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2022-12-14 13:37:45,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,560 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:45,567 INFO L321 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2022-12-14 13:37:45,567 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 7 new quantified variables, introduced 9 case distinctions, treesize of input 436 treesize of output 270 [2022-12-14 13:37:45,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,625 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 102 [2022-12-14 13:37:45,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 34 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 79 [2022-12-14 13:37:45,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,738 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 66 [2022-12-14 13:37:45,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 13:37:45,781 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:37:45,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 13:37:45,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 13:37:45,812 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 13:37:45,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2022-12-14 13:37:45,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 13:37:45,831 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 13:37:45,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-12-14 13:37:45,851 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 13:37:45,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,876 INFO L321 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2022-12-14 13:37:45,876 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 2 case distinctions, treesize of input 82 treesize of output 79 [2022-12-14 13:37:45,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:45,917 INFO L321 Elim1Store]: treesize reduction 76, result has 29.0 percent of original size [2022-12-14 13:37:45,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 84 [2022-12-14 13:37:46,021 INFO L321 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2022-12-14 13:37:46,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 72 treesize of output 91 [2022-12-14 13:37:46,042 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 13:37:46,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 67 treesize of output 74 [2022-12-14 13:37:46,126 INFO L321 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-12-14 13:37:46,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 93 [2022-12-14 13:37:46,162 INFO L321 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2022-12-14 13:37:46,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 78 treesize of output 76 [2022-12-14 13:37:46,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 13:37:46,200 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 25 treesize of output 13 [2022-12-14 13:37:46,743 INFO L321 Elim1Store]: treesize reduction 216, result has 58.6 percent of original size [2022-12-14 13:37:46,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 28 case distinctions, treesize of input 535 treesize of output 776 [2022-12-14 13:37:47,055 INFO L321 Elim1Store]: treesize reduction 112, result has 67.3 percent of original size [2022-12-14 13:37:47,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 641 treesize of output 621 [2022-12-14 13:37:47,136 INFO L321 Elim1Store]: treesize reduction 160, result has 15.3 percent of original size [2022-12-14 13:37:47,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 283 treesize of output 280 [2022-12-14 13:48:42,214 WARN L233 SmtUtils]: Spent 25.00s on a formula simplification that was a NOOP. DAG size: 1823 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 13:49:06,951 WARN L233 SmtUtils]: Spent 8.28s on a formula simplification that was a NOOP. DAG size: 1819 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 13:49:29,641 WARN L233 SmtUtils]: Spent 11.45s on a formula simplification that was a NOOP. DAG size: 1426 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 13:49:51,351 WARN L233 SmtUtils]: Spent 11.05s on a formula simplification that was a NOOP. DAG size: 1422 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 13:50:07,495 WARN L233 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 1419 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-12-14 13:52:19,130 WARN L233 SmtUtils]: Spent 10.75s on a formula simplification that was a NOOP. DAG size: 1178 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)