./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/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_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS --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-8393723 [2022-11-19 08:23:06,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:23:06,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:23:06,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:23:06,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:23:06,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:23:06,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:23:06,094 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:23:06,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:23:06,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:23:06,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:23:06,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:23:06,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:23:06,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:23:06,107 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:23:06,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:23:06,109 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:23:06,111 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:23:06,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:23:06,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:23:06,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:23:06,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:23:06,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:23:06,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:23:06,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:23:06,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:23:06,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:23:06,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:23:06,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:23:06,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:23:06,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:23:06,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:23:06,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:23:06,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:23:06,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:23:06,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:23:06,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:23:06,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:23:06,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:23:06,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:23:06,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:23:06,143 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-19 08:23:06,170 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:23:06,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:23:06,171 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:23:06,172 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:23:06,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:23:06,173 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:23:06,173 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:23:06,174 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:23:06,174 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:23:06,175 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:23:06,175 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:23:06,176 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:23:06,176 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:23:06,177 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:23:06,177 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:23:06,178 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:23:06,178 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:23:06,178 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:23:06,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-19 08:23:06,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-19 08:23:06,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:23:06,181 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:23:06,181 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:23:06,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:23:06,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:23:06,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:23:06,182 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-19 08:23:06,183 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-19 08:23:06,183 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-19 08:23:06,184 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:23:06,184 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:23:06,184 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:23:06,185 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:23:06,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:23:06,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:23:06,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:23:06,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:23:06,187 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:23:06,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:23:06,187 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:23:06,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:23:06,188 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:23:06,189 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_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b05b18c0458ef705f828769f88cc2a590589ce4d5c3f0e48f99be90a949f7ed4 [2022-11-19 08:23:06,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:23:06,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:23:06,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:23:06,561 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:23:06,562 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:23:06,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i [2022-11-19 08:23:06,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/data/724dbb49d/07c3586334e84f0698b5cfee08913f9b/FLAG1e87bae20 [2022-11-19 08:23:07,378 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:23:07,379 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i [2022-11-19 08:23:07,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/data/724dbb49d/07c3586334e84f0698b5cfee08913f9b/FLAG1e87bae20 [2022-11-19 08:23:07,598 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/data/724dbb49d/07c3586334e84f0698b5cfee08913f9b [2022-11-19 08:23:07,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:23:07,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:23:07,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:23:07,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:23:07,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:23:07,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:23:07" (1/1) ... [2022-11-19 08:23:07,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244d4c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:07, skipping insertion in model container [2022-11-19 08:23:07,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:23:07" (1/1) ... [2022-11-19 08:23:07,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:23:07,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:23:08,187 WARN L234 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_54af7ef2-b21a-4774-859c-44f476988ec6/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22534,22547] [2022-11-19 08:23:08,192 WARN L234 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_54af7ef2-b21a-4774-859c-44f476988ec6/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22606,22619] [2022-11-19 08:23:08,197 WARN L234 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_54af7ef2-b21a-4774-859c-44f476988ec6/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22746,22759] [2022-11-19 08:23:08,199 WARN L234 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_54af7ef2-b21a-4774-859c-44f476988ec6/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22820,22833] [2022-11-19 08:23:08,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:23:08,222 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:23:08,277 WARN L234 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_54af7ef2-b21a-4774-859c-44f476988ec6/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22534,22547] [2022-11-19 08:23:08,279 WARN L234 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_54af7ef2-b21a-4774-859c-44f476988ec6/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22606,22619] [2022-11-19 08:23:08,280 WARN L234 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_54af7ef2-b21a-4774-859c-44f476988ec6/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22746,22759] [2022-11-19 08:23:08,281 WARN L234 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_54af7ef2-b21a-4774-859c-44f476988ec6/sv-benchmarks/c/forester-heap/sll-rb-sentinel-1.i[22820,22833] [2022-11-19 08:23:08,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:23:08,327 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:23:08,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08 WrapperNode [2022-11-19 08:23:08,328 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:23:08,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:23:08,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:23:08,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:23:08,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (1/1) ... [2022-11-19 08:23:08,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (1/1) ... [2022-11-19 08:23:08,399 INFO L138 Inliner]: procedures = 119, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 134 [2022-11-19 08:23:08,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:23:08,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:23:08,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:23:08,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:23:08,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (1/1) ... [2022-11-19 08:23:08,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (1/1) ... [2022-11-19 08:23:08,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (1/1) ... [2022-11-19 08:23:08,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (1/1) ... [2022-11-19 08:23:08,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (1/1) ... [2022-11-19 08:23:08,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (1/1) ... [2022-11-19 08:23:08,443 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (1/1) ... [2022-11-19 08:23:08,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (1/1) ... [2022-11-19 08:23:08,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:23:08,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:23:08,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:23:08,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:23:08,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (1/1) ... [2022-11-19 08:23:08,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:23:08,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:08,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:23:08,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:23:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:23:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:23:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:23:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:23:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:23:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:23:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:23:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:23:08,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:23:08,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:23:08,725 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:23:08,728 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:23:09,370 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:23:09,484 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:23:09,484 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-19 08:23:09,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:23:09 BoogieIcfgContainer [2022-11-19 08:23:09,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:23:09,497 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:23:09,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:23:09,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:23:09,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:23:07" (1/3) ... [2022-11-19 08:23:09,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cfe8160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:23:09, skipping insertion in model container [2022-11-19 08:23:09,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:23:08" (2/3) ... [2022-11-19 08:23:09,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cfe8160 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:23:09, skipping insertion in model container [2022-11-19 08:23:09,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:23:09" (3/3) ... [2022-11-19 08:23:09,507 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-rb-sentinel-1.i [2022-11-19 08:23:09,533 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:23:09,533 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2022-11-19 08:23:09,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:23:09,605 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;@62cf9f66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:23:09,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2022-11-19 08:23:09,611 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) [2022-11-19 08:23:09,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 08:23:09,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:09,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 08:23:09,621 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)] === [2022-11-19 08:23:09,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:09,630 INFO L85 PathProgramCache]: Analyzing trace with hash 8374, now seen corresponding path program 1 times [2022-11-19 08:23:09,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:09,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352983764] [2022-11-19 08:23:09,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:09,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:09,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:09,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:09,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352983764] [2022-11-19 08:23:09,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352983764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:09,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:09,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:23:09,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471246654] [2022-11-19 08:23:09,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:09,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:23:09,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:09,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:23:09,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:09,989 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) [2022-11-19 08:23:10,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:10,182 INFO L93 Difference]: Finished difference Result 144 states and 151 transitions. [2022-11-19 08:23:10,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:23:10,185 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 [2022-11-19 08:23:10,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:10,196 INFO L225 Difference]: With dead ends: 144 [2022-11-19 08:23:10,196 INFO L226 Difference]: Without dead ends: 143 [2022-11-19 08:23:10,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:10,202 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:10,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 80 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:10,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-11-19 08:23:10,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 119. [2022-11-19 08:23:10,277 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) [2022-11-19 08:23:10,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 127 transitions. [2022-11-19 08:23:10,285 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 127 transitions. Word has length 2 [2022-11-19 08:23:10,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:10,286 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 127 transitions. [2022-11-19 08:23:10,287 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) [2022-11-19 08:23:10,289 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 127 transitions. [2022-11-19 08:23:10,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-11-19 08:23:10,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:10,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2022-11-19 08:23:10,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:23:10,293 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)] === [2022-11-19 08:23:10,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:10,294 INFO L85 PathProgramCache]: Analyzing trace with hash 8375, now seen corresponding path program 1 times [2022-11-19 08:23:10,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:10,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053986078] [2022-11-19 08:23:10,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:10,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:10,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:10,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:10,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053986078] [2022-11-19 08:23:10,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053986078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:10,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:10,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-19 08:23:10,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860919489] [2022-11-19 08:23:10,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:10,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:23:10,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:10,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:23:10,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:10,511 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) [2022-11-19 08:23:10,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:10,676 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2022-11-19 08:23:10,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:23:10,678 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 [2022-11-19 08:23:10,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:10,682 INFO L225 Difference]: With dead ends: 116 [2022-11-19 08:23:10,683 INFO L226 Difference]: Without dead ends: 116 [2022-11-19 08:23:10,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:10,687 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 [2022-11-19 08:23:10,689 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] [2022-11-19 08:23:10,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-19 08:23:10,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2022-11-19 08:23:10,701 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) [2022-11-19 08:23:10,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 123 transitions. [2022-11-19 08:23:10,703 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 123 transitions. Word has length 2 [2022-11-19 08:23:10,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:10,704 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 123 transitions. [2022-11-19 08:23:10,704 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) [2022-11-19 08:23:10,704 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 123 transitions. [2022-11-19 08:23:10,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:23:10,705 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:10,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:23:10,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:23:10,706 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)] === [2022-11-19 08:23:10,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:10,707 INFO L85 PathProgramCache]: Analyzing trace with hash 8054028, now seen corresponding path program 1 times [2022-11-19 08:23:10,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:10,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921131408] [2022-11-19 08:23:10,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:10,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:10,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:10,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:10,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921131408] [2022-11-19 08:23:10,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921131408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:10,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:10,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:23:10,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799371585] [2022-11-19 08:23:10,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:10,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:23:10,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:10,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:23:10,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:10,813 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) [2022-11-19 08:23:10,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:10,950 INFO L93 Difference]: Finished difference Result 113 states and 119 transitions. [2022-11-19 08:23:10,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:23:10,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 08:23:10,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:10,952 INFO L225 Difference]: With dead ends: 113 [2022-11-19 08:23:10,952 INFO L226 Difference]: Without dead ends: 113 [2022-11-19 08:23:10,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:10,959 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 [2022-11-19 08:23:10,961 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] [2022-11-19 08:23:10,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-19 08:23:10,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2022-11-19 08:23:10,973 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) [2022-11-19 08:23:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 119 transitions. [2022-11-19 08:23:10,974 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 119 transitions. Word has length 4 [2022-11-19 08:23:10,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:10,975 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 119 transitions. [2022-11-19 08:23:10,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:10,975 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 119 transitions. [2022-11-19 08:23:10,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:23:10,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:10,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:23:10,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:23:10,976 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)] === [2022-11-19 08:23:10,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:10,977 INFO L85 PathProgramCache]: Analyzing trace with hash 8054029, now seen corresponding path program 1 times [2022-11-19 08:23:10,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:10,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124227681] [2022-11-19 08:23:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:10,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:11,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:11,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124227681] [2022-11-19 08:23:11,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124227681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:11,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:11,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:23:11,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246484500] [2022-11-19 08:23:11,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:11,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:23:11,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:11,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:23:11,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:11,187 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) [2022-11-19 08:23:11,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:11,396 INFO L93 Difference]: Finished difference Result 126 states and 132 transitions. [2022-11-19 08:23:11,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:23:11,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-19 08:23:11,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:11,398 INFO L225 Difference]: With dead ends: 126 [2022-11-19 08:23:11,399 INFO L226 Difference]: Without dead ends: 126 [2022-11-19 08:23:11,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:11,401 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 89 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:11,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 74 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:11,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-11-19 08:23:11,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 114. [2022-11-19 08:23:11,408 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) [2022-11-19 08:23:11,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 122 transitions. [2022-11-19 08:23:11,410 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 122 transitions. Word has length 4 [2022-11-19 08:23:11,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:11,410 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 122 transitions. [2022-11-19 08:23:11,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:23:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 122 transitions. [2022-11-19 08:23:11,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:23:11,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:11,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:11,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:23:11,413 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)] === [2022-11-19 08:23:11,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:11,413 INFO L85 PathProgramCache]: Analyzing trace with hash -812908213, now seen corresponding path program 1 times [2022-11-19 08:23:11,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:11,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274654471] [2022-11-19 08:23:11,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:11,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:11,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:11,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:11,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274654471] [2022-11-19 08:23:11,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274654471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:11,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:11,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:23:11,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811009642] [2022-11-19 08:23:11,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:11,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:23:11,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:11,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:23:11,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:23:11,711 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) [2022-11-19 08:23:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:11,947 INFO L93 Difference]: Finished difference Result 116 states and 126 transitions. [2022-11-19 08:23:11,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:11,949 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 [2022-11-19 08:23:11,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:11,950 INFO L225 Difference]: With dead ends: 116 [2022-11-19 08:23:11,955 INFO L226 Difference]: Without dead ends: 116 [2022-11-19 08:23:11,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:11,959 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 139 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:11,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 59 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:11,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-19 08:23:11,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 105. [2022-11-19 08:23:11,983 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) [2022-11-19 08:23:11,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2022-11-19 08:23:11,984 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 8 [2022-11-19 08:23:11,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:11,985 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2022-11-19 08:23:11,985 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) [2022-11-19 08:23:11,985 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2022-11-19 08:23:11,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:23:11,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:11,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:11,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:23:11,989 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)] === [2022-11-19 08:23:11,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:11,990 INFO L85 PathProgramCache]: Analyzing trace with hash -812908212, now seen corresponding path program 1 times [2022-11-19 08:23:11,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:11,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52082092] [2022-11-19 08:23:11,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:11,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:12,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:12,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52082092] [2022-11-19 08:23:12,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52082092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:12,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:12,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:23:12,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677184317] [2022-11-19 08:23:12,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:12,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:23:12,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:12,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:23:12,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:23:12,282 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) [2022-11-19 08:23:12,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:12,536 INFO L93 Difference]: Finished difference Result 135 states and 145 transitions. [2022-11-19 08:23:12,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:23:12,536 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 [2022-11-19 08:23:12,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:12,537 INFO L225 Difference]: With dead ends: 135 [2022-11-19 08:23:12,538 INFO L226 Difference]: Without dead ends: 135 [2022-11-19 08:23:12,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:12,539 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 127 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:12,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 82 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:12,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-19 08:23:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 111. [2022-11-19 08:23:12,544 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) [2022-11-19 08:23:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 122 transitions. [2022-11-19 08:23:12,545 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 122 transitions. Word has length 8 [2022-11-19 08:23:12,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:12,545 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 122 transitions. [2022-11-19 08:23:12,545 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) [2022-11-19 08:23:12,545 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 122 transitions. [2022-11-19 08:23:12,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:23:12,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:12,551 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:12,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:23:12,552 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)] === [2022-11-19 08:23:12,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:12,553 INFO L85 PathProgramCache]: Analyzing trace with hash 479237399, now seen corresponding path program 1 times [2022-11-19 08:23:12,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:12,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009809456] [2022-11-19 08:23:12,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:12,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:12,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:12,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:12,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009809456] [2022-11-19 08:23:12,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009809456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:12,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:12,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:23:12,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018580143] [2022-11-19 08:23:12,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:12,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:12,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:12,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:12,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:12,692 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) [2022-11-19 08:23:12,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:12,939 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2022-11-19 08:23:12,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:12,939 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 [2022-11-19 08:23:12,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:12,942 INFO L225 Difference]: With dead ends: 144 [2022-11-19 08:23:12,942 INFO L226 Difference]: Without dead ends: 144 [2022-11-19 08:23:12,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:23:12,946 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 200 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:12,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 105 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:12,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-19 08:23:12,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 112. [2022-11-19 08:23:12,953 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) [2022-11-19 08:23:12,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 123 transitions. [2022-11-19 08:23:12,954 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 123 transitions. Word has length 10 [2022-11-19 08:23:12,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:12,955 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 123 transitions. [2022-11-19 08:23:12,955 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) [2022-11-19 08:23:12,955 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 123 transitions. [2022-11-19 08:23:12,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:23:12,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:12,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:12,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:23:12,957 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)] === [2022-11-19 08:23:12,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:12,958 INFO L85 PathProgramCache]: Analyzing trace with hash 479463659, now seen corresponding path program 1 times [2022-11-19 08:23:12,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:12,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114828466] [2022-11-19 08:23:12,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:12,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:13,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:13,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:13,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114828466] [2022-11-19 08:23:13,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114828466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:13,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:13,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:23:13,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212722376] [2022-11-19 08:23:13,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:13,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:13,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:13,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:13,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:13,096 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) [2022-11-19 08:23:13,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:13,301 INFO L93 Difference]: Finished difference Result 111 states and 122 transitions. [2022-11-19 08:23:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:13,302 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 [2022-11-19 08:23:13,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:13,303 INFO L225 Difference]: With dead ends: 111 [2022-11-19 08:23:13,303 INFO L226 Difference]: Without dead ends: 111 [2022-11-19 08:23:13,303 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 [2022-11-19 08:23:13,304 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:13,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 158 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:13,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-19 08:23:13,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-11-19 08:23:13,308 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) [2022-11-19 08:23:13,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 122 transitions. [2022-11-19 08:23:13,309 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 122 transitions. Word has length 10 [2022-11-19 08:23:13,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:13,309 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 122 transitions. [2022-11-19 08:23:13,309 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) [2022-11-19 08:23:13,309 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 122 transitions. [2022-11-19 08:23:13,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 08:23:13,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:13,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:13,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:23:13,311 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)] === [2022-11-19 08:23:13,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:13,312 INFO L85 PathProgramCache]: Analyzing trace with hash 479463660, now seen corresponding path program 1 times [2022-11-19 08:23:13,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:13,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913946976] [2022-11-19 08:23:13,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:13,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:13,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:13,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:13,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:13,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913946976] [2022-11-19 08:23:13,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913946976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:13,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:13,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:23:13,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975156636] [2022-11-19 08:23:13,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:13,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:13,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:13,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:13,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:13,585 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) [2022-11-19 08:23:13,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:13,803 INFO L93 Difference]: Finished difference Result 111 states and 123 transitions. [2022-11-19 08:23:13,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:23:13,804 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 [2022-11-19 08:23:13,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:13,805 INFO L225 Difference]: With dead ends: 111 [2022-11-19 08:23:13,805 INFO L226 Difference]: Without dead ends: 111 [2022-11-19 08:23:13,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-19 08:23:13,806 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 10 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:13,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 199 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:13,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-19 08:23:13,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2022-11-19 08:23:13,810 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) [2022-11-19 08:23:13,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2022-11-19 08:23:13,810 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 10 [2022-11-19 08:23:13,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:13,811 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2022-11-19 08:23:13,811 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) [2022-11-19 08:23:13,811 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2022-11-19 08:23:13,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-19 08:23:13,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:13,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:13,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:23:13,812 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)] === [2022-11-19 08:23:13,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:13,813 INFO L85 PathProgramCache]: Analyzing trace with hash 494053857, now seen corresponding path program 1 times [2022-11-19 08:23:13,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:13,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593079238] [2022-11-19 08:23:13,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:13,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:14,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:14,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:14,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593079238] [2022-11-19 08:23:14,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593079238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:14,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:14,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 08:23:14,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952394687] [2022-11-19 08:23:14,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:14,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 08:23:14,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:14,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 08:23:14,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-19 08:23:14,078 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) [2022-11-19 08:23:14,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:14,393 INFO L93 Difference]: Finished difference Result 158 states and 174 transitions. [2022-11-19 08:23:14,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:23:14,394 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 [2022-11-19 08:23:14,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:14,395 INFO L225 Difference]: With dead ends: 158 [2022-11-19 08:23:14,395 INFO L226 Difference]: Without dead ends: 158 [2022-11-19 08:23:14,396 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 [2022-11-19 08:23:14,396 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 225 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:14,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 156 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:14,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-11-19 08:23:14,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 113. [2022-11-19 08:23:14,400 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) [2022-11-19 08:23:14,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 125 transitions. [2022-11-19 08:23:14,401 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 125 transitions. Word has length 13 [2022-11-19 08:23:14,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:14,401 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 125 transitions. [2022-11-19 08:23:14,401 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) [2022-11-19 08:23:14,401 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 125 transitions. [2022-11-19 08:23:14,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 08:23:14,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:14,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:14,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:23:14,406 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)] === [2022-11-19 08:23:14,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:14,407 INFO L85 PathProgramCache]: Analyzing trace with hash 947851196, now seen corresponding path program 1 times [2022-11-19 08:23:14,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:14,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524615823] [2022-11-19 08:23:14,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:14,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:14,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:14,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:14,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524615823] [2022-11-19 08:23:14,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524615823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:14,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:14,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:23:14,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365252392] [2022-11-19 08:23:14,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:14,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:14,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:14,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:14,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:14,609 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) [2022-11-19 08:23:14,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:14,783 INFO L93 Difference]: Finished difference Result 112 states and 124 transitions. [2022-11-19 08:23:14,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:14,783 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 [2022-11-19 08:23:14,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:14,784 INFO L225 Difference]: With dead ends: 112 [2022-11-19 08:23:14,784 INFO L226 Difference]: Without dead ends: 112 [2022-11-19 08:23:14,785 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 [2022-11-19 08:23:14,786 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 [2022-11-19 08:23:14,786 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] [2022-11-19 08:23:14,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-19 08:23:14,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-11-19 08:23:14,789 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) [2022-11-19 08:23:14,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2022-11-19 08:23:14,789 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 15 [2022-11-19 08:23:14,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:14,790 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2022-11-19 08:23:14,790 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) [2022-11-19 08:23:14,790 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2022-11-19 08:23:14,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 08:23:14,791 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:14,791 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:14,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:23:14,791 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)] === [2022-11-19 08:23:14,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:14,792 INFO L85 PathProgramCache]: Analyzing trace with hash 947851197, now seen corresponding path program 1 times [2022-11-19 08:23:14,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:14,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178687651] [2022-11-19 08:23:14,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:14,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:15,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:15,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:15,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178687651] [2022-11-19 08:23:15,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178687651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:15,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:15,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:23:15,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053838757] [2022-11-19 08:23:15,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:15,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:15,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:15,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:15,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:15,169 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) [2022-11-19 08:23:15,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:15,349 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2022-11-19 08:23:15,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:15,350 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 [2022-11-19 08:23:15,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:15,351 INFO L225 Difference]: With dead ends: 109 [2022-11-19 08:23:15,351 INFO L226 Difference]: Without dead ends: 109 [2022-11-19 08:23:15,351 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 [2022-11-19 08:23:15,352 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:15,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 196 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 08:23:15,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-19 08:23:15,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2022-11-19 08:23:15,357 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) [2022-11-19 08:23:15,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 115 transitions. [2022-11-19 08:23:15,358 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 115 transitions. Word has length 15 [2022-11-19 08:23:15,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:15,358 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 115 transitions. [2022-11-19 08:23:15,359 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) [2022-11-19 08:23:15,359 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 115 transitions. [2022-11-19 08:23:15,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:23:15,360 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:15,360 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:15,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 08:23:15,361 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)] === [2022-11-19 08:23:15,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:15,362 INFO L85 PathProgramCache]: Analyzing trace with hash 405330386, now seen corresponding path program 1 times [2022-11-19 08:23:15,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:15,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973666374] [2022-11-19 08:23:15,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:15,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:15,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:15,600 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:15,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973666374] [2022-11-19 08:23:15,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973666374] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:23:15,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511321303] [2022-11-19 08:23:15,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:15,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:15,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:15,610 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:15,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:23:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:15,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-19 08:23:15,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:15,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:15,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:15,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:15,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:15,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:15,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:16,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:23:16,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:23:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:16,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:23:16,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:16,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511321303] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:23:16,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [571912670] [2022-11-19 08:23:16,355 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-19 08:23:16,356 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:23:16,361 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:23:16,368 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:23:16,368 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:23:16,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:23:16,512 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 [2022-11-19 08:23:16,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-19 08:23:16,542 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 [2022-11-19 08:23:16,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:16,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 08:23:16,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,622 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 [2022-11-19 08:23:16,638 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:16,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-19 08:23:16,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,702 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 [2022-11-19 08:23:16,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-19 08:23:16,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,775 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 [2022-11-19 08:23:16,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,816 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 [2022-11-19 08:23:16,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:16,850 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 [2022-11-19 08:23:17,283 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:23:19,129 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 [2022-11-19 08:23:19,129 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:23:19,129 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:23:19,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 10 [2022-11-19 08:23:19,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830454898] [2022-11-19 08:23:19,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:23:19,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-19 08:23:19,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:19,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-19 08:23:19,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=316, Unknown=0, NotChecked=0, Total=420 [2022-11-19 08:23:19,131 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) [2022-11-19 08:23:19,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:19,530 INFO L93 Difference]: Finished difference Result 165 states and 181 transitions. [2022-11-19 08:23:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 08:23:19,531 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 [2022-11-19 08:23:19,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:19,532 INFO L225 Difference]: With dead ends: 165 [2022-11-19 08:23:19,532 INFO L226 Difference]: Without dead ends: 165 [2022-11-19 08:23:19,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2022-11-19 08:23:19,533 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 312 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:19,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 144 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-19 08:23:19,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-19 08:23:19,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 131. [2022-11-19 08:23:19,539 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) [2022-11-19 08:23:19,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 154 transitions. [2022-11-19 08:23:19,541 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 154 transitions. Word has length 19 [2022-11-19 08:23:19,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:19,541 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 154 transitions. [2022-11-19 08:23:19,542 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) [2022-11-19 08:23:19,542 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 154 transitions. [2022-11-19 08:23:19,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:23:19,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:19,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:19,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:23:19,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-19 08:23:19,753 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)] === [2022-11-19 08:23:19,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:19,754 INFO L85 PathProgramCache]: Analyzing trace with hash 404025859, now seen corresponding path program 1 times [2022-11-19 08:23:19,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:19,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61092164] [2022-11-19 08:23:19,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:19,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:19,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:19,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61092164] [2022-11-19 08:23:19,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61092164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:19,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:19,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:23:19,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262783625] [2022-11-19 08:23:19,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:19,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:23:19,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:19,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:23:19,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:23:19,887 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) [2022-11-19 08:23:20,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:20,016 INFO L93 Difference]: Finished difference Result 128 states and 149 transitions. [2022-11-19 08:23:20,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:23:20,017 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 [2022-11-19 08:23:20,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:20,018 INFO L225 Difference]: With dead ends: 128 [2022-11-19 08:23:20,018 INFO L226 Difference]: Without dead ends: 128 [2022-11-19 08:23:20,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:23:20,018 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 [2022-11-19 08:23:20,019 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] [2022-11-19 08:23:20,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-19 08:23:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2022-11-19 08:23:20,024 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) [2022-11-19 08:23:20,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2022-11-19 08:23:20,024 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 19 [2022-11-19 08:23:20,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:20,026 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2022-11-19 08:23:20,027 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) [2022-11-19 08:23:20,027 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2022-11-19 08:23:20,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:23:20,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:20,030 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:20,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 08:23:20,031 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)] === [2022-11-19 08:23:20,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:20,031 INFO L85 PathProgramCache]: Analyzing trace with hash -360214418, now seen corresponding path program 1 times [2022-11-19 08:23:20,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:20,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814176254] [2022-11-19 08:23:20,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:20,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:20,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:20,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:20,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814176254] [2022-11-19 08:23:20,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814176254] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:23:20,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514533759] [2022-11-19 08:23:20,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:20,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:20,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:20,681 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:20,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:23:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:20,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-19 08:23:20,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:20,851 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:23:20,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:20,953 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 08:23:20,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-19 08:23:21,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:21,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:21,087 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 [2022-11-19 08:23:21,141 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 08:23:21,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 08:23:21,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:23:21,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:21,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:23:21,413 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 [2022-11-19 08:23:21,579 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:21,586 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:23:21,587 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 [2022-11-19 08:23:21,597 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 [2022-11-19 08:23:21,601 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 [2022-11-19 08:23:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:21,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514533759] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:23:21,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1326614135] [2022-11-19 08:23:21,650 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-19 08:23:21,652 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:23:21,653 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:23:21,653 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:23:21,654 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:23:21,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:23:21,699 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 [2022-11-19 08:23:21,708 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 [2022-11-19 08:23:21,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-19 08:23:21,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 08:23:21,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:21,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,766 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 [2022-11-19 08:23:21,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:21,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,800 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 [2022-11-19 08:23:21,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-19 08:23:21,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,824 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-19 08:23:21,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,851 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 [2022-11-19 08:23:21,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,867 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 [2022-11-19 08:23:21,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,882 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 [2022-11-19 08:23:21,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,943 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 [2022-11-19 08:23:21,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:21,983 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 [2022-11-19 08:23:21,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,000 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 [2022-11-19 08:23:22,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,022 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 [2022-11-19 08:23:22,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,094 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-19 08:23:22,094 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 [2022-11-19 08:23:22,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,119 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 [2022-11-19 08:23:22,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,158 INFO L321 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2022-11-19 08:23:22,158 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 [2022-11-19 08:23:22,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:22,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:22,274 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:23:22,275 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 [2022-11-19 08:23:22,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,296 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 08:23:22,296 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 [2022-11-19 08:23:22,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,326 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 [2022-11-19 08:23:22,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,414 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 [2022-11-19 08:23:22,530 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:22,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:22,592 INFO L321 Elim1Store]: treesize reduction 44, result has 38.0 percent of original size [2022-11-19 08:23:22,592 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 [2022-11-19 08:23:22,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:22,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:22,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:22,628 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:22,655 INFO L321 Elim1Store]: treesize reduction 45, result has 13.5 percent of original size [2022-11-19 08:23:22,655 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 [2022-11-19 08:23:22,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:22,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:22,737 INFO L321 Elim1Store]: treesize reduction 53, result has 25.4 percent of original size [2022-11-19 08:23:22,737 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 [2022-11-19 08:23:23,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:23,575 INFO L321 Elim1Store]: treesize reduction 192, result has 17.6 percent of original size [2022-11-19 08:23:23,576 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 [2022-11-19 08:23:23,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:23,704 INFO L321 Elim1Store]: treesize reduction 172, result has 19.2 percent of original size [2022-11-19 08:23:23,705 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 [2022-11-19 08:23:23,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:23,765 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:23,915 INFO L321 Elim1Store]: treesize reduction 402, result has 12.4 percent of original size [2022-11-19 08:23:23,916 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 [2022-11-19 08:23:25,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:25,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:25,031 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:25,110 INFO L321 Elim1Store]: treesize reduction 232, result has 6.1 percent of original size [2022-11-19 08:23:25,110 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 [2022-11-19 08:23:25,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:25,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:25,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:25,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:25,250 INFO L321 Elim1Store]: treesize reduction 234, result has 17.0 percent of original size [2022-11-19 08:23:25,250 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 [2022-11-19 08:23:25,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:25,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:25,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:25,339 INFO L321 Elim1Store]: treesize reduction 127, result has 8.0 percent of original size [2022-11-19 08:23:25,340 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 [2022-11-19 08:23:26,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:26,243 INFO L321 Elim1Store]: treesize reduction 388, result has 10.8 percent of original size [2022-11-19 08:23:26,243 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 [2022-11-19 08:23:26,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:23:26,663 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:26,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:26,707 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 08:23:26,707 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 [2022-11-19 08:23:26,730 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 08:23:26,730 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 [2022-11-19 08:23:26,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:23:26,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:26,805 INFO L321 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2022-11-19 08:23:26,806 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 [2022-11-19 08:23:26,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:26,841 INFO L321 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2022-11-19 08:23:26,841 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 [2022-11-19 08:23:26,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:26,889 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:23:26,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-19 08:23:26,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-19 08:23:26,909 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 [2022-11-19 08:23:26,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:26,920 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:26,938 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 [2022-11-19 08:23:26,961 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 08:23:26,962 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 [2022-11-19 08:23:26,991 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-19 08:23:26,991 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 [2022-11-19 08:23:27,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:27,080 INFO L321 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2022-11-19 08:23:27,080 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 [2022-11-19 08:23:27,112 INFO L321 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2022-11-19 08:23:27,113 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 [2022-11-19 08:23:27,322 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 08:23:29,334 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 [2022-11-19 08:23:29,334 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 08:23:29,334 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 08:23:29,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 26 [2022-11-19 08:23:29,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928396450] [2022-11-19 08:23:29,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 08:23:29,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-19 08:23:29,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-19 08:23:29,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=1364, Unknown=6, NotChecked=76, Total=1640 [2022-11-19 08:23:29,336 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) [2022-11-19 08:23:30,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:30,410 INFO L93 Difference]: Finished difference Result 275 states and 308 transitions. [2022-11-19 08:23:30,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-19 08:23:30,411 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 [2022-11-19 08:23:30,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:30,415 INFO L225 Difference]: With dead ends: 275 [2022-11-19 08:23:30,415 INFO L226 Difference]: Without dead ends: 275 [2022-11-19 08:23:30,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=369, Invalid=2179, Unknown=6, NotChecked=98, Total=2652 [2022-11-19 08:23:30,421 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 444 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 444 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:30,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 427 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 750 Invalid, 0 Unknown, 444 Unchecked, 0.7s Time] [2022-11-19 08:23:30,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2022-11-19 08:23:30,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 140. [2022-11-19 08:23:30,425 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) [2022-11-19 08:23:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2022-11-19 08:23:30,426 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 20 [2022-11-19 08:23:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:30,426 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2022-11-19 08:23:30,427 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) [2022-11-19 08:23:30,427 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2022-11-19 08:23:30,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:23:30,430 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:30,430 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] [2022-11-19 08:23:30,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:23:30,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-19 08:23:30,639 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)] === [2022-11-19 08:23:30,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:30,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1695487611, now seen corresponding path program 1 times [2022-11-19 08:23:30,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:30,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887255081] [2022-11-19 08:23:30,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:30,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:23:30,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:30,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887255081] [2022-11-19 08:23:30,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887255081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:23:30,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:23:30,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:23:30,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512884124] [2022-11-19 08:23:30,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:23:30,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:23:30,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:23:30,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:23:30,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:30,686 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) [2022-11-19 08:23:30,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:23:30,750 INFO L93 Difference]: Finished difference Result 142 states and 162 transitions. [2022-11-19 08:23:30,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:23:30,751 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 [2022-11-19 08:23:30,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:23:30,752 INFO L225 Difference]: With dead ends: 142 [2022-11-19 08:23:30,752 INFO L226 Difference]: Without dead ends: 142 [2022-11-19 08:23:30,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:23:30,753 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:23:30,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 73 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:23:30,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-11-19 08:23:30,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-11-19 08:23:30,757 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) [2022-11-19 08:23:30,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 162 transitions. [2022-11-19 08:23:30,758 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 162 transitions. Word has length 24 [2022-11-19 08:23:30,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:23:30,759 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 162 transitions. [2022-11-19 08:23:30,759 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) [2022-11-19 08:23:30,759 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 162 transitions. [2022-11-19 08:23:30,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 08:23:30,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:23:30,760 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:23:30,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 08:23:30,761 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)] === [2022-11-19 08:23:30,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:23:30,761 INFO L85 PathProgramCache]: Analyzing trace with hash -2088284808, now seen corresponding path program 1 times [2022-11-19 08:23:30,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:23:30,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437516532] [2022-11-19 08:23:30,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:30,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:23:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:31,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:31,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:23:31,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437516532] [2022-11-19 08:23:31,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437516532] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:23:31,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094738222] [2022-11-19 08:23:31,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:23:31,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:23:31,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:23:31,683 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:23:31,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af7ef2-b21a-4774-859c-44f476988ec6/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:23:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:23:31,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-19 08:23:31,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:23:31,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-19 08:23:31,878 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:31,934 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 08:23:31,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-19 08:23:31,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:31,979 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-11-19 08:23:32,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:32,046 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 [2022-11-19 08:23:32,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 08:23:32,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 08:23:32,135 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-19 08:23:32,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-11-19 08:23:32,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:32,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 08:23:32,225 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 [2022-11-19 08:23:32,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 08:23:32,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-19 08:23:32,329 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 08:23:32,332 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:32,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:23:32,398 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_711 (Array Int Int))) (= ~unnamed1~0~BLACK (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| v_ArrVal_711) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))) is different from false [2022-11-19 08:23:32,614 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-19 08:23:32,614 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 [2022-11-19 08:23:32,835 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:32,845 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 08:23:32,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 34 [2022-11-19 08:23:32,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:32,854 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 [2022-11-19 08:23:32,859 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 [2022-11-19 08:23:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:23:32,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094738222] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:23:32,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [953821507] [2022-11-19 08:23:32,899 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2022-11-19 08:23:32,899 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:23:32,900 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:23:32,900 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:23:32,900 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:23:32,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:32,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:32,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:23:32,953 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 [2022-11-19 08:23:32,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:32,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-11-19 08:23:32,969 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 [2022-11-19 08:23:32,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:32,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:32,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:32,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:32,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:32,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-11-19 08:23:33,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,005 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 [2022-11-19 08:23:33,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:33,023 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 [2022-11-19 08:23:33,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-19 08:23:33,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,053 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-19 08:23:33,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,069 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 [2022-11-19 08:23:33,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,098 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 [2022-11-19 08:23:33,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,117 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 [2022-11-19 08:23:33,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,135 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 [2022-11-19 08:23:33,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 43 [2022-11-19 08:23:33,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,240 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 [2022-11-19 08:23:33,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,259 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 [2022-11-19 08:23:33,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,276 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 [2022-11-19 08:23:33,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,357 INFO L321 Elim1Store]: treesize reduction 48, result has 44.8 percent of original size [2022-11-19 08:23:33,358 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 [2022-11-19 08:23:33,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,414 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-11-19 08:23:33,415 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 [2022-11-19 08:23:33,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,440 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 [2022-11-19 08:23:33,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,548 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 08:23:33,549 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 [2022-11-19 08:23:33,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:33,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:33,594 INFO L321 Elim1Store]: treesize reduction 28, result has 49.1 percent of original size [2022-11-19 08:23:33,594 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 [2022-11-19 08:23:33,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,641 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-19 08:23:33,641 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 [2022-11-19 08:23:33,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,681 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 [2022-11-19 08:23:33,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,734 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 [2022-11-19 08:23:33,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,758 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 [2022-11-19 08:23:33,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,782 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 [2022-11-19 08:23:33,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,882 INFO L321 Elim1Store]: treesize reduction 88, result has 20.0 percent of original size [2022-11-19 08:23:33,882 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 [2022-11-19 08:23:33,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,924 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 [2022-11-19 08:23:33,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:33,956 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 [2022-11-19 08:23:34,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,019 INFO L321 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2022-11-19 08:23:34,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 256 treesize of output 164 [2022-11-19 08:23:34,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,066 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 [2022-11-19 08:23:34,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,101 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 [2022-11-19 08:23:34,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,218 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 [2022-11-19 08:23:34,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,337 INFO L321 Elim1Store]: treesize reduction 88, result has 20.0 percent of original size [2022-11-19 08:23:34,338 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 [2022-11-19 08:23:34,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,369 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 [2022-11-19 08:23:34,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,414 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 [2022-11-19 08:23:34,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,557 INFO L321 Elim1Store]: treesize reduction 136, result has 17.6 percent of original size [2022-11-19 08:23:34,557 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 [2022-11-19 08:23:34,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,648 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 [2022-11-19 08:23:34,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,698 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 [2022-11-19 08:23:34,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:34,801 INFO L321 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2022-11-19 08:23:34,802 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 [2022-11-19 08:23:34,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,875 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 [2022-11-19 08:23:34,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:34,980 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 [2022-11-19 08:23:35,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,033 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 [2022-11-19 08:23:35,086 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 [2022-11-19 08:23:35,091 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:23:35,109 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 [2022-11-19 08:23:35,125 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 [2022-11-19 08:23:35,145 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-11-19 08:23:35,145 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 [2022-11-19 08:23:35,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 08:23:35,168 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:23:35,168 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 [2022-11-19 08:23:35,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 08:23:35,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,235 INFO L321 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2022-11-19 08:23:35,235 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 [2022-11-19 08:23:35,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,290 INFO L321 Elim1Store]: treesize reduction 76, result has 29.0 percent of original size [2022-11-19 08:23:35,290 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 [2022-11-19 08:23:35,418 INFO L321 Elim1Store]: treesize reduction 36, result has 42.9 percent of original size [2022-11-19 08:23:35,419 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 [2022-11-19 08:23:35,449 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-11-19 08:23:35,450 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 [2022-11-19 08:23:35,582 INFO L321 Elim1Store]: treesize reduction 16, result has 63.6 percent of original size [2022-11-19 08:23:35,583 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 [2022-11-19 08:23:35,642 INFO L321 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size [2022-11-19 08:23:35,642 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 [2022-11-19 08:23:35,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:23:35,721 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 [2022-11-19 08:23:36,465 INFO L321 Elim1Store]: treesize reduction 216, result has 58.6 percent of original size [2022-11-19 08:23:36,466 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 [2022-11-19 08:23:36,975 INFO L321 Elim1Store]: treesize reduction 112, result has 67.3 percent of original size [2022-11-19 08:23:36,976 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 [2022-11-19 08:23:37,111 INFO L321 Elim1Store]: treesize reduction 160, result has 15.3 percent of original size [2022-11-19 08:23:37,112 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 [2022-11-19 08:36:02,209 WARN L233 SmtUtils]: Spent 26.65s 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) [2022-11-19 08:36:28,526 WARN L233 SmtUtils]: Spent 8.86s 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) [2022-11-19 08:36:51,385 WARN L233 SmtUtils]: Spent 11.48s 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) [2022-11-19 08:37:14,122 WARN L233 SmtUtils]: Spent 11.41s 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) [2022-11-19 08:37:31,267 WARN L233 SmtUtils]: Spent 5.71s 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)