./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-token-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-token-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d66a07d2a90ded112831066684eab385c0c1369 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:23:44,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:23:44,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:23:44,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:23:44,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:23:44,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:23:44,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:23:44,316 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:23:44,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:23:44,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:23:44,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:23:44,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:23:44,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:23:44,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:23:44,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:23:44,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:23:44,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:23:44,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:23:44,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:23:44,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:23:44,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:23:44,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:23:44,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:23:44,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:23:44,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:23:44,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:23:44,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:23:44,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:23:44,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:23:44,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:23:44,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:23:44,364 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:23:44,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:23:44,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:23:44,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:23:44,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:23:44,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:23:44,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:23:44,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:23:44,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:23:44,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:23:44,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2021-10-11 02:23:44,406 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:23:44,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:23:44,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:23:44,408 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:23:44,408 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:23:44,409 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:23:44,409 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:23:44,409 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:23:44,409 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:23:44,409 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:23:44,410 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:23:44,410 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:23:44,410 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:23:44,410 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:23:44,411 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:23:44,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:23:44,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:23:44,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:23:44,420 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:23:44,420 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:23:44,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:23:44,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:23:44,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:23:44,421 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:23:44,421 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:23:44,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:23:44,423 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:23:44,423 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:23:44,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:23:44,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:23:44,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:23:44,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:44,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:23:44,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:23:44,426 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:23:44,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:23:44,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:23:44,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:23:44,428 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d66a07d2a90ded112831066684eab385c0c1369 [2021-10-11 02:23:44,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:23:44,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:23:44,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:23:44,803 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:23:44,804 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:23:44,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/forester-heap/dll-token-2.i [2021-10-11 02:23:44,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/data/9e812141c/6b2ef602000244bfb516ab84ff5830ab/FLAG8242831a5 [2021-10-11 02:23:45,533 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:23:45,534 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i [2021-10-11 02:23:45,558 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/data/9e812141c/6b2ef602000244bfb516ab84ff5830ab/FLAG8242831a5 [2021-10-11 02:23:45,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/data/9e812141c/6b2ef602000244bfb516ab84ff5830ab [2021-10-11 02:23:45,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:23:45,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:23:45,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:45,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:23:45,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:23:45,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:45" (1/1) ... [2021-10-11 02:23:45,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4149a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:45, skipping insertion in model container [2021-10-11 02:23:45,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:45" (1/1) ... [2021-10-11 02:23:45,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:23:45,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:46,232 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22229,22242] [2021-10-11 02:23:46,250 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22398,22411] [2021-10-11 02:23:46,254 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22489,22502] [2021-10-11 02:23:46,256 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22571,22584] [2021-10-11 02:23:46,258 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22649,22662] [2021-10-11 02:23:46,263 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22795,22808] [2021-10-11 02:23:46,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:46,287 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:23:46,359 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22229,22242] [2021-10-11 02:23:46,365 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22398,22411] [2021-10-11 02:23:46,368 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22489,22502] [2021-10-11 02:23:46,372 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22571,22584] [2021-10-11 02:23:46,379 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22649,22662] [2021-10-11 02:23:46,381 WARN L226 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_fac6628d-8795-4e4e-9769-23645a90c8f4/sv-benchmarks/c/forester-heap/dll-token-2.i[22795,22808] [2021-10-11 02:23:46,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:46,457 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:23:46,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46 WrapperNode [2021-10-11 02:23:46,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:46,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:46,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:23:46,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:23:46,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46" (1/1) ... [2021-10-11 02:23:46,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46" (1/1) ... [2021-10-11 02:23:46,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:46,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:23:46,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:23:46,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:23:46,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46" (1/1) ... [2021-10-11 02:23:46,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46" (1/1) ... [2021-10-11 02:23:46,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46" (1/1) ... [2021-10-11 02:23:46,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46" (1/1) ... [2021-10-11 02:23:46,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46" (1/1) ... [2021-10-11 02:23:46,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46" (1/1) ... [2021-10-11 02:23:46,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46" (1/1) ... [2021-10-11 02:23:46,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:23:46,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:23:46,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:23:46,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:23:46,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:23:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:23:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:23:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 02:23:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:23:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-11 02:23:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:23:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:23:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:23:46,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:23:47,482 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:23:47,483 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-11 02:23:47,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:47 BoogieIcfgContainer [2021-10-11 02:23:47,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:23:47,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:23:47,488 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:23:47,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:23:47,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:23:45" (1/3) ... [2021-10-11 02:23:47,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6199ef03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:47, skipping insertion in model container [2021-10-11 02:23:47,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:46" (2/3) ... [2021-10-11 02:23:47,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6199ef03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:47, skipping insertion in model container [2021-10-11 02:23:47,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:47" (3/3) ... [2021-10-11 02:23:47,510 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-token-2.i [2021-10-11 02:23:47,527 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:23:47,532 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 64 error locations. [2021-10-11 02:23:47,543 INFO L253 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-10-11 02:23:47,567 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:23:47,568 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:23:47,568 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:23:47,568 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:23:47,568 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:23:47,568 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:23:47,568 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:23:47,569 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:23:47,593 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states. [2021-10-11 02:23:47,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:23:47,600 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:47,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:23:47,602 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:47,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:47,609 INFO L82 PathProgramCache]: Analyzing trace with hash 8715, now seen corresponding path program 1 times [2021-10-11 02:23:47,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:47,621 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898428388] [2021-10-11 02:23:47,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:47,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:47,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898428388] [2021-10-11 02:23:47,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:47,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:23:47,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089598677] [2021-10-11 02:23:47,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:47,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:47,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:47,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:47,837 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 3 states. [2021-10-11 02:23:48,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:48,045 INFO L93 Difference]: Finished difference Result 140 states and 143 transitions. [2021-10-11 02:23:48,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:48,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:23:48,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:48,058 INFO L225 Difference]: With dead ends: 140 [2021-10-11 02:23:48,058 INFO L226 Difference]: Without dead ends: 139 [2021-10-11 02:23:48,060 INFO L677 BasicCegarLoop]: 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 [2021-10-11 02:23:48,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-11 02:23:48,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 119. [2021-10-11 02:23:48,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2021-10-11 02:23:48,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2021-10-11 02:23:48,106 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 2 [2021-10-11 02:23:48,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:48,107 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2021-10-11 02:23:48,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:48,107 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2021-10-11 02:23:48,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:23:48,108 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:48,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:23:48,108 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:23:48,109 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:48,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:48,110 INFO L82 PathProgramCache]: Analyzing trace with hash 8716, now seen corresponding path program 1 times [2021-10-11 02:23:48,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:48,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697828125] [2021-10-11 02:23:48,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:48,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:48,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697828125] [2021-10-11 02:23:48,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:48,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:23:48,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056127980] [2021-10-11 02:23:48,165 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:23:48,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:48,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:23:48,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:23:48,167 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand 3 states. [2021-10-11 02:23:48,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:48,301 INFO L93 Difference]: Finished difference Result 144 states and 146 transitions. [2021-10-11 02:23:48,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:23:48,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:23:48,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:48,304 INFO L225 Difference]: With dead ends: 144 [2021-10-11 02:23:48,304 INFO L226 Difference]: Without dead ends: 144 [2021-10-11 02:23:48,305 INFO L677 BasicCegarLoop]: 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 [2021-10-11 02:23:48,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-11 02:23:48,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 116. [2021-10-11 02:23:48,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2021-10-11 02:23:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 118 transitions. [2021-10-11 02:23:48,321 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 118 transitions. Word has length 2 [2021-10-11 02:23:48,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:48,321 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 118 transitions. [2021-10-11 02:23:48,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:23:48,322 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 118 transitions. [2021-10-11 02:23:48,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:23:48,322 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:48,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:48,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:23:48,323 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:48,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:48,325 INFO L82 PathProgramCache]: Analyzing trace with hash 379592660, now seen corresponding path program 1 times [2021-10-11 02:23:48,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:48,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462010063] [2021-10-11 02:23:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:48,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:48,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462010063] [2021-10-11 02:23:48,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:48,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:48,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149612005] [2021-10-11 02:23:48,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:23:48,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:48,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:23:48,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:23:48,397 INFO L87 Difference]: Start difference. First operand 116 states and 118 transitions. Second operand 4 states. [2021-10-11 02:23:48,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:48,638 INFO L93 Difference]: Finished difference Result 120 states and 123 transitions. [2021-10-11 02:23:48,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:48,639 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:23:48,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:48,646 INFO L225 Difference]: With dead ends: 120 [2021-10-11 02:23:48,646 INFO L226 Difference]: Without dead ends: 120 [2021-10-11 02:23:48,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:48,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-10-11 02:23:48,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 103. [2021-10-11 02:23:48,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2021-10-11 02:23:48,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 107 transitions. [2021-10-11 02:23:48,673 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 107 transitions. Word has length 7 [2021-10-11 02:23:48,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:48,673 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 107 transitions. [2021-10-11 02:23:48,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:23:48,674 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 107 transitions. [2021-10-11 02:23:48,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:23:48,674 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:48,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:48,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:23:48,676 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:48,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:48,677 INFO L82 PathProgramCache]: Analyzing trace with hash 379592661, now seen corresponding path program 1 times [2021-10-11 02:23:48,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:48,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058333644] [2021-10-11 02:23:48,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:48,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:48,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058333644] [2021-10-11 02:23:48,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:48,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:48,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675428712] [2021-10-11 02:23:48,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:23:48,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:48,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:23:48,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:23:48,820 INFO L87 Difference]: Start difference. First operand 103 states and 107 transitions. Second operand 4 states. [2021-10-11 02:23:49,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:49,101 INFO L93 Difference]: Finished difference Result 185 states and 189 transitions. [2021-10-11 02:23:49,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:23:49,102 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:23:49,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:49,103 INFO L225 Difference]: With dead ends: 185 [2021-10-11 02:23:49,104 INFO L226 Difference]: Without dead ends: 185 [2021-10-11 02:23:49,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:49,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-10-11 02:23:49,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 134. [2021-10-11 02:23:49,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2021-10-11 02:23:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2021-10-11 02:23:49,134 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 7 [2021-10-11 02:23:49,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:49,135 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2021-10-11 02:23:49,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:23:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2021-10-11 02:23:49,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:23:49,136 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:49,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:49,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:23:49,156 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:49,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:49,157 INFO L82 PathProgramCache]: Analyzing trace with hash -283650961, now seen corresponding path program 1 times [2021-10-11 02:23:49,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:49,158 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972791830] [2021-10-11 02:23:49,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:49,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:49,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972791830] [2021-10-11 02:23:49,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:49,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:23:49,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702894112] [2021-10-11 02:23:49,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:49,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:49,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:49,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:49,242 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand 5 states. [2021-10-11 02:23:49,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:49,498 INFO L93 Difference]: Finished difference Result 199 states and 216 transitions. [2021-10-11 02:23:49,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:49,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-10-11 02:23:49,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:49,500 INFO L225 Difference]: With dead ends: 199 [2021-10-11 02:23:49,500 INFO L226 Difference]: Without dead ends: 199 [2021-10-11 02:23:49,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:23:49,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-11 02:23:49,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 133. [2021-10-11 02:23:49,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2021-10-11 02:23:49,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 147 transitions. [2021-10-11 02:23:49,508 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 147 transitions. Word has length 9 [2021-10-11 02:23:49,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:49,509 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 147 transitions. [2021-10-11 02:23:49,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 147 transitions. [2021-10-11 02:23:49,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:23:49,510 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:49,510 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:49,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:23:49,511 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:49,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:49,511 INFO L82 PathProgramCache]: Analyzing trace with hash -283650960, now seen corresponding path program 1 times [2021-10-11 02:23:49,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:49,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695527736] [2021-10-11 02:23:49,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:49,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695527736] [2021-10-11 02:23:49,578 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:49,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:23:49,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559283565] [2021-10-11 02:23:49,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:49,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:49,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:49,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:49,580 INFO L87 Difference]: Start difference. First operand 133 states and 147 transitions. Second operand 5 states. [2021-10-11 02:23:49,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:49,893 INFO L93 Difference]: Finished difference Result 224 states and 244 transitions. [2021-10-11 02:23:49,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:49,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-10-11 02:23:49,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:49,896 INFO L225 Difference]: With dead ends: 224 [2021-10-11 02:23:49,896 INFO L226 Difference]: Without dead ends: 224 [2021-10-11 02:23:49,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:23:49,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-10-11 02:23:49,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 132. [2021-10-11 02:23:49,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2021-10-11 02:23:49,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 145 transitions. [2021-10-11 02:23:49,909 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 145 transitions. Word has length 9 [2021-10-11 02:23:49,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:49,909 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 145 transitions. [2021-10-11 02:23:49,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 145 transitions. [2021-10-11 02:23:49,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:23:49,910 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:49,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:49,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:23:49,911 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:49,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:49,911 INFO L82 PathProgramCache]: Analyzing trace with hash -198171791, now seen corresponding path program 1 times [2021-10-11 02:23:49,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:49,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376947850] [2021-10-11 02:23:49,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:50,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:50,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376947850] [2021-10-11 02:23:50,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:50,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:23:50,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104317324] [2021-10-11 02:23:50,013 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:50,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:50,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:50,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:50,014 INFO L87 Difference]: Start difference. First operand 132 states and 145 transitions. Second operand 5 states. [2021-10-11 02:23:50,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:50,195 INFO L93 Difference]: Finished difference Result 139 states and 147 transitions. [2021-10-11 02:23:50,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:50,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-10-11 02:23:50,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:50,197 INFO L225 Difference]: With dead ends: 139 [2021-10-11 02:23:50,197 INFO L226 Difference]: Without dead ends: 139 [2021-10-11 02:23:50,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:23:50,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-11 02:23:50,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 131. [2021-10-11 02:23:50,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2021-10-11 02:23:50,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 143 transitions. [2021-10-11 02:23:50,202 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 143 transitions. Word has length 10 [2021-10-11 02:23:50,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:50,202 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 143 transitions. [2021-10-11 02:23:50,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:50,203 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions. [2021-10-11 02:23:50,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:23:50,203 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:50,203 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:50,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:23:50,204 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:50,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:50,205 INFO L82 PathProgramCache]: Analyzing trace with hash -198171790, now seen corresponding path program 1 times [2021-10-11 02:23:50,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:50,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945710489] [2021-10-11 02:23:50,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:50,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945710489] [2021-10-11 02:23:50,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:50,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:23:50,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584854692] [2021-10-11 02:23:50,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:50,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:50,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:50,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:50,338 INFO L87 Difference]: Start difference. First operand 131 states and 143 transitions. Second operand 5 states. [2021-10-11 02:23:50,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:50,548 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2021-10-11 02:23:50,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:50,548 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-10-11 02:23:50,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:50,549 INFO L225 Difference]: With dead ends: 130 [2021-10-11 02:23:50,550 INFO L226 Difference]: Without dead ends: 130 [2021-10-11 02:23:50,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:23:50,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-11 02:23:50,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-11 02:23:50,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2021-10-11 02:23:50,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 141 transitions. [2021-10-11 02:23:50,554 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 141 transitions. Word has length 10 [2021-10-11 02:23:50,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:50,554 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 141 transitions. [2021-10-11 02:23:50,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:50,555 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 141 transitions. [2021-10-11 02:23:50,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:23:50,555 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:50,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:50,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:23:50,556 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:50,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:50,556 INFO L82 PathProgramCache]: Analyzing trace with hash -2005408744, now seen corresponding path program 1 times [2021-10-11 02:23:50,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:50,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418457303] [2021-10-11 02:23:50,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:50,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418457303] [2021-10-11 02:23:50,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:50,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:23:50,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336097144] [2021-10-11 02:23:50,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 02:23:50,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:50,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 02:23:50,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:23:50,647 INFO L87 Difference]: Start difference. First operand 130 states and 141 transitions. Second operand 8 states. [2021-10-11 02:23:51,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:51,024 INFO L93 Difference]: Finished difference Result 134 states and 141 transitions. [2021-10-11 02:23:51,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:23:51,032 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2021-10-11 02:23:51,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:51,033 INFO L225 Difference]: With dead ends: 134 [2021-10-11 02:23:51,033 INFO L226 Difference]: Without dead ends: 134 [2021-10-11 02:23:51,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:23:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-11 02:23:51,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 129. [2021-10-11 02:23:51,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2021-10-11 02:23:51,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 140 transitions. [2021-10-11 02:23:51,037 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 140 transitions. Word has length 11 [2021-10-11 02:23:51,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:51,046 INFO L481 AbstractCegarLoop]: Abstraction has 129 states and 140 transitions. [2021-10-11 02:23:51,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 02:23:51,046 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 140 transitions. [2021-10-11 02:23:51,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:23:51,047 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:51,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:51,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:23:51,047 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:51,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:51,048 INFO L82 PathProgramCache]: Analyzing trace with hash -2005408743, now seen corresponding path program 1 times [2021-10-11 02:23:51,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:51,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831364206] [2021-10-11 02:23:51,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:51,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:51,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831364206] [2021-10-11 02:23:51,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:51,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 02:23:51,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980409027] [2021-10-11 02:23:51,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 02:23:51,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:51,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 02:23:51,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:23:51,200 INFO L87 Difference]: Start difference. First operand 129 states and 140 transitions. Second operand 9 states. [2021-10-11 02:23:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:51,832 INFO L93 Difference]: Finished difference Result 129 states and 136 transitions. [2021-10-11 02:23:51,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 02:23:51,832 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2021-10-11 02:23:51,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:51,835 INFO L225 Difference]: With dead ends: 129 [2021-10-11 02:23:51,835 INFO L226 Difference]: Without dead ends: 129 [2021-10-11 02:23:51,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2021-10-11 02:23:51,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-11 02:23:51,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 110. [2021-10-11 02:23:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2021-10-11 02:23:51,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 120 transitions. [2021-10-11 02:23:51,844 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 120 transitions. Word has length 11 [2021-10-11 02:23:51,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:51,844 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 120 transitions. [2021-10-11 02:23:51,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 02:23:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 120 transitions. [2021-10-11 02:23:51,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:23:51,846 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:51,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:51,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:23:51,847 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:51,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:51,848 INFO L82 PathProgramCache]: Analyzing trace with hash -1464354742, now seen corresponding path program 1 times [2021-10-11 02:23:51,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:51,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232929916] [2021-10-11 02:23:51,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:52,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232929916] [2021-10-11 02:23:52,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:52,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:23:52,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706115951] [2021-10-11 02:23:52,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:23:52,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:52,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:23:52,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:23:52,008 INFO L87 Difference]: Start difference. First operand 110 states and 120 transitions. Second operand 7 states. [2021-10-11 02:23:52,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:52,290 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2021-10-11 02:23:52,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:23:52,290 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2021-10-11 02:23:52,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:52,291 INFO L225 Difference]: With dead ends: 109 [2021-10-11 02:23:52,291 INFO L226 Difference]: Without dead ends: 109 [2021-10-11 02:23:52,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:23:52,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-11 02:23:52,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-11 02:23:52,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-10-11 02:23:52,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2021-10-11 02:23:52,294 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 12 [2021-10-11 02:23:52,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:52,295 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2021-10-11 02:23:52,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:23:52,295 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2021-10-11 02:23:52,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:23:52,295 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:52,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:52,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:23:52,296 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:52,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:52,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1464354743, now seen corresponding path program 1 times [2021-10-11 02:23:52,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:52,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636252077] [2021-10-11 02:23:52,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:52,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:52,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636252077] [2021-10-11 02:23:52,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:52,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:23:52,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720954284] [2021-10-11 02:23:52,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:23:52,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:52,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:23:52,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:23:52,389 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand 7 states. [2021-10-11 02:23:52,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:52,706 INFO L93 Difference]: Finished difference Result 108 states and 118 transitions. [2021-10-11 02:23:52,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:23:52,707 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2021-10-11 02:23:52,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:52,708 INFO L225 Difference]: With dead ends: 108 [2021-10-11 02:23:52,708 INFO L226 Difference]: Without dead ends: 108 [2021-10-11 02:23:52,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:23:52,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-11 02:23:52,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-10-11 02:23:52,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-10-11 02:23:52,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 118 transitions. [2021-10-11 02:23:52,712 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 118 transitions. Word has length 12 [2021-10-11 02:23:52,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:52,713 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 118 transitions. [2021-10-11 02:23:52,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:23:52,713 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 118 transitions. [2021-10-11 02:23:52,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:23:52,713 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:52,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:52,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 02:23:52,714 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:52,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:52,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1242513400, now seen corresponding path program 1 times [2021-10-11 02:23:52,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:52,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985823797] [2021-10-11 02:23:52,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:52,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:52,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985823797] [2021-10-11 02:23:52,834 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:52,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 02:23:52,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327093322] [2021-10-11 02:23:52,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:23:52,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:52,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:23:52,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:23:52,836 INFO L87 Difference]: Start difference. First operand 108 states and 118 transitions. Second operand 10 states. [2021-10-11 02:23:53,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:53,355 INFO L93 Difference]: Finished difference Result 123 states and 130 transitions. [2021-10-11 02:23:53,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-11 02:23:53,356 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2021-10-11 02:23:53,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:53,357 INFO L225 Difference]: With dead ends: 123 [2021-10-11 02:23:53,357 INFO L226 Difference]: Without dead ends: 123 [2021-10-11 02:23:53,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=264, Unknown=0, NotChecked=0, Total=380 [2021-10-11 02:23:53,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-11 02:23:53,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 106. [2021-10-11 02:23:53,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-10-11 02:23:53,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 116 transitions. [2021-10-11 02:23:53,361 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 116 transitions. Word has length 13 [2021-10-11 02:23:53,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:53,361 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 116 transitions. [2021-10-11 02:23:53,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:23:53,362 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 116 transitions. [2021-10-11 02:23:53,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:23:53,362 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:53,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:53,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 02:23:53,363 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:53,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:53,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1504535064, now seen corresponding path program 1 times [2021-10-11 02:23:53,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:53,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876921065] [2021-10-11 02:23:53,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:53,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876921065] [2021-10-11 02:23:53,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:53,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:23:53,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70829602] [2021-10-11 02:23:53,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:23:53,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:53,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:23:53,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:23:53,395 INFO L87 Difference]: Start difference. First operand 106 states and 116 transitions. Second operand 4 states. [2021-10-11 02:23:53,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:53,521 INFO L93 Difference]: Finished difference Result 159 states and 164 transitions. [2021-10-11 02:23:53,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:53,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-10-11 02:23:53,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:53,527 INFO L225 Difference]: With dead ends: 159 [2021-10-11 02:23:53,527 INFO L226 Difference]: Without dead ends: 159 [2021-10-11 02:23:53,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:53,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-10-11 02:23:53,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 104. [2021-10-11 02:23:53,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-10-11 02:23:53,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 114 transitions. [2021-10-11 02:23:53,536 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 114 transitions. Word has length 14 [2021-10-11 02:23:53,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:53,536 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 114 transitions. [2021-10-11 02:23:53,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:23:53,536 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 114 transitions. [2021-10-11 02:23:53,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:23:53,537 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:53,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:53,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-11 02:23:53,538 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:53,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:53,538 INFO L82 PathProgramCache]: Analyzing trace with hash -205670706, now seen corresponding path program 1 times [2021-10-11 02:23:53,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:53,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572016684] [2021-10-11 02:23:53,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:53,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:53,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572016684] [2021-10-11 02:23:53,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:53,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:23:53,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193239815] [2021-10-11 02:23:53,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:53,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:53,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:53,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:53,590 INFO L87 Difference]: Start difference. First operand 104 states and 114 transitions. Second operand 5 states. [2021-10-11 02:23:53,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:53,751 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2021-10-11 02:23:53,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:53,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2021-10-11 02:23:53,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:53,756 INFO L225 Difference]: With dead ends: 102 [2021-10-11 02:23:53,756 INFO L226 Difference]: Without dead ends: 102 [2021-10-11 02:23:53,759 INFO L677 BasicCegarLoop]: 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 [2021-10-11 02:23:53,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-11 02:23:53,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-10-11 02:23:53,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-10-11 02:23:53,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 111 transitions. [2021-10-11 02:23:53,777 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 111 transitions. Word has length 19 [2021-10-11 02:23:53,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:53,778 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 111 transitions. [2021-10-11 02:23:53,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:53,778 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 111 transitions. [2021-10-11 02:23:53,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:23:53,779 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:53,779 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:53,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-11 02:23:53,782 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:53,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:53,782 INFO L82 PathProgramCache]: Analyzing trace with hash -205637935, now seen corresponding path program 1 times [2021-10-11 02:23:53,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:53,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363343587] [2021-10-11 02:23:53,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:54,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363343587] [2021-10-11 02:23:54,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:54,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 02:23:54,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476729183] [2021-10-11 02:23:54,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:23:54,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:54,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:23:54,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:23:54,091 INFO L87 Difference]: Start difference. First operand 102 states and 111 transitions. Second operand 10 states. [2021-10-11 02:23:54,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:54,527 INFO L93 Difference]: Finished difference Result 135 states and 139 transitions. [2021-10-11 02:23:54,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 02:23:54,528 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2021-10-11 02:23:54,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:54,529 INFO L225 Difference]: With dead ends: 135 [2021-10-11 02:23:54,529 INFO L226 Difference]: Without dead ends: 135 [2021-10-11 02:23:54,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2021-10-11 02:23:54,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-11 02:23:54,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 114. [2021-10-11 02:23:54,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2021-10-11 02:23:54,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2021-10-11 02:23:54,533 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 19 [2021-10-11 02:23:54,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:54,534 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2021-10-11 02:23:54,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:23:54,534 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2021-10-11 02:23:54,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-11 02:23:54,535 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:54,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:54,535 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-11 02:23:54,536 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:54,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:54,536 INFO L82 PathProgramCache]: Analyzing trace with hash -80918825, now seen corresponding path program 1 times [2021-10-11 02:23:54,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:54,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287413487] [2021-10-11 02:23:54,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:54,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:54,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287413487] [2021-10-11 02:23:54,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:54,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-11 02:23:54,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921805681] [2021-10-11 02:23:54,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 02:23:54,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:54,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 02:23:54,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:23:54,710 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand 9 states. [2021-10-11 02:23:55,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:55,071 INFO L93 Difference]: Finished difference Result 137 states and 141 transitions. [2021-10-11 02:23:55,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:23:55,072 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-10-11 02:23:55,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:55,073 INFO L225 Difference]: With dead ends: 137 [2021-10-11 02:23:55,073 INFO L226 Difference]: Without dead ends: 137 [2021-10-11 02:23:55,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:23:55,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-11 02:23:55,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 119. [2021-10-11 02:23:55,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2021-10-11 02:23:55,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 130 transitions. [2021-10-11 02:23:55,077 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 130 transitions. Word has length 21 [2021-10-11 02:23:55,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:55,078 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 130 transitions. [2021-10-11 02:23:55,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 02:23:55,078 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 130 transitions. [2021-10-11 02:23:55,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-11 02:23:55,079 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:55,079 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:55,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-11 02:23:55,079 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:55,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:55,080 INFO L82 PathProgramCache]: Analyzing trace with hash -80918824, now seen corresponding path program 1 times [2021-10-11 02:23:55,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:55,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790750755] [2021-10-11 02:23:55,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:55,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:23:55,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790750755] [2021-10-11 02:23:55,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:55,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-11 02:23:55,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799016238] [2021-10-11 02:23:55,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 02:23:55,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:55,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 02:23:55,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:23:55,235 INFO L87 Difference]: Start difference. First operand 119 states and 130 transitions. Second operand 9 states. [2021-10-11 02:23:55,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:55,704 INFO L93 Difference]: Finished difference Result 141 states and 145 transitions. [2021-10-11 02:23:55,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:23:55,705 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2021-10-11 02:23:55,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:55,706 INFO L225 Difference]: With dead ends: 141 [2021-10-11 02:23:55,706 INFO L226 Difference]: Without dead ends: 141 [2021-10-11 02:23:55,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:23:55,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-11 02:23:55,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 119. [2021-10-11 02:23:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2021-10-11 02:23:55,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 129 transitions. [2021-10-11 02:23:55,711 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 129 transitions. Word has length 21 [2021-10-11 02:23:55,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:55,711 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 129 transitions. [2021-10-11 02:23:55,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 02:23:55,712 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 129 transitions. [2021-10-11 02:23:55,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 02:23:55,712 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:55,713 INFO L422 BasicCegarLoop]: 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] [2021-10-11 02:23:55,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-11 02:23:55,713 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr61ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr62ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr58ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr33REQUIRES_VIOLATION, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr21REQUIRES_VIOLATION, ULTIMATE.startErr59ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr32REQUIRES_VIOLATION, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2021-10-11 02:23:55,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:55,714 INFO L82 PathProgramCache]: Analyzing trace with hash -453574985, now seen corresponding path program 1 times [2021-10-11 02:23:55,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:55,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842865910] [2021-10-11 02:23:55,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:55,739 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:55,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:55,764 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:55,790 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:23:55,790 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:23:55,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-11 02:23:55,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:23:55 BoogieIcfgContainer [2021-10-11 02:23:55,823 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:23:55,823 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:23:55,823 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:23:55,824 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:23:55,824 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:47" (3/4) ... [2021-10-11 02:23:55,826 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:23:55,867 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac6628d-8795-4e4e-9769-23645a90c8f4/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:23:55,868 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:23:55,869 INFO L168 Benchmark]: Toolchain (without parser) took 10082.73 ms. Allocated memory was 98.6 MB in the beginning and 182.5 MB in the end (delta: 83.9 MB). Free memory was 61.0 MB in the beginning and 79.7 MB in the end (delta: -18.7 MB). Peak memory consumption was 63.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:55,870 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 98.6 MB. Free memory is still 79.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:55,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.22 ms. Allocated memory is still 98.6 MB. Free memory was 60.8 MB in the beginning and 62.0 MB in the end (delta: -1.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:55,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.28 ms. Allocated memory is still 98.6 MB. Free memory was 62.0 MB in the beginning and 59.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:55,872 INFO L168 Benchmark]: Boogie Preprocessor took 54.74 ms. Allocated memory is still 98.6 MB. Free memory was 59.8 MB in the beginning and 58.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:55,872 INFO L168 Benchmark]: RCFGBuilder took 910.31 ms. Allocated memory is still 98.6 MB. Free memory was 58.1 MB in the beginning and 48.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:55,873 INFO L168 Benchmark]: TraceAbstraction took 8334.79 ms. Allocated memory was 98.6 MB in the beginning and 182.5 MB in the end (delta: 83.9 MB). Free memory was 48.6 MB in the beginning and 82.8 MB in the end (delta: -34.2 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:55,873 INFO L168 Benchmark]: Witness Printer took 44.71 ms. Allocated memory is still 182.5 MB. Free memory was 82.8 MB in the beginning and 79.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:55,875 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 98.6 MB. Free memory is still 79.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 668.22 ms. Allocated memory is still 98.6 MB. Free memory was 60.8 MB in the beginning and 62.0 MB in the end (delta: -1.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.28 ms. Allocated memory is still 98.6 MB. Free memory was 62.0 MB in the beginning and 59.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.74 ms. Allocated memory is still 98.6 MB. Free memory was 59.8 MB in the beginning and 58.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 910.31 ms. Allocated memory is still 98.6 MB. Free memory was 58.1 MB in the beginning and 48.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8334.79 ms. Allocated memory was 98.6 MB in the beginning and 182.5 MB in the end (delta: 83.9 MB). Free memory was 48.6 MB in the beginning and 82.8 MB in the end (delta: -34.2 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.1 GB. * Witness Printer took 44.71 ms. Allocated memory is still 182.5 MB. Free memory was 82.8 MB in the beginning and 79.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1037]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1004] SLL* head = malloc(sizeof(SLL)); [L1005] head->next = ((void*)0) [L1006] head->prev = ((void*)0) [L1007] head->data = 0 [L1009] SLL* x = head; [L1012] COND FALSE !(__VERIFIER_nondet_int()) [L1021] x->data = 1 [L1022] x->next = malloc(sizeof(SLL)) [L1023] EXPR x->next [L1023] x->next->prev = x [L1024] EXPR x->next [L1024] x->next->data = 2 [L1026] x = head [L1028] COND FALSE !(!(((void*)0) != x)) [L1030] EXPR x->data [L1030] COND FALSE !(1 != x->data) [L1035] EXPR x->data [L1035] COND FALSE !(!(1 == x->data)) [L1036] EXPR x->next [L1036] x = x->next [L1037] EXPR x->data [L1037] COND TRUE !(2 != x->data) [L1037] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 123 locations, 64 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.2s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1224 SDtfs, 1917 SDslu, 2341 SDs, 0 SdLazy, 3692 SolverSat, 274 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=134occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 18 MinimizatonAttempts, 439 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 191 ConstructedInterpolants, 0 QuantifiedInterpolants, 22982 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...