./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:20:38,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:20:38,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:20:38,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:20:38,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:20:38,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:20:38,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:20:38,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:20:38,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:20:38,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:20:38,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:20:38,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:20:38,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:20:38,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:20:38,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:20:38,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:20:38,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:20:38,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:20:38,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:20:38,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:20:38,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:20:38,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:20:38,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:20:38,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:20:38,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:20:38,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:20:38,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:20:38,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:20:38,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:20:38,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:20:38,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:20:38,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:20:38,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:20:38,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:20:38,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:20:38,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:20:38,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:20:38,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:20:38,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:20:38,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:20:38,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:20:38,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-24 10:20:38,491 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:20:38,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:20:38,493 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:20:38,493 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:20:38,493 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:20:38,494 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:20:38,494 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:20:38,494 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:20:38,494 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:20:38,495 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:20:38,496 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:20:38,496 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:20:38,496 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:20:38,497 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:20:38,497 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:20:38,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 10:20:38,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 10:20:38,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:20:38,498 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:20:38,499 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 10:20:38,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:20:38,499 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:20:38,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:20:38,500 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 10:20:38,500 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 10:20:38,500 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 10:20:38,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:20:38,502 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:20:38,502 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:20:38,503 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:20:38,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:20:38,503 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:20:38,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:20:38,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:20:38,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:20:38,504 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:20:38,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:20:38,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:20:38,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:20:38,505 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_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 [2021-10-24 10:20:38,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:20:38,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:20:38,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:20:38,857 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:20:38,858 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:20:38,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-10-24 10:20:38,958 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/data/7dc49f0ca/5a5ce4942a514fb1aa95ff237c8a3050/FLAG73f1089b2 [2021-10-24 10:20:39,637 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:20:39,638 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-10-24 10:20:39,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/data/7dc49f0ca/5a5ce4942a514fb1aa95ff237c8a3050/FLAG73f1089b2 [2021-10-24 10:20:39,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/data/7dc49f0ca/5a5ce4942a514fb1aa95ff237c8a3050 [2021-10-24 10:20:39,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:20:39,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:20:39,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:20:39,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:20:39,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:20:39,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:20:39" (1/1) ... [2021-10-24 10:20:39,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d93db31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:39, skipping insertion in model container [2021-10-24 10:20:39,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:20:39" (1/1) ... [2021-10-24 10:20:39,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:20:39,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:20:40,420 WARN L228 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_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-10-24 10:20:40,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:20:40,446 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:20:40,656 WARN L228 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_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-10-24 10:20:40,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:20:40,679 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:20:40,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40 WrapperNode [2021-10-24 10:20:40,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:20:40,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:20:40,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:20:40,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:20:40,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40" (1/1) ... [2021-10-24 10:20:40,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40" (1/1) ... [2021-10-24 10:20:40,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:20:40,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:20:40,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:20:40,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:20:40,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40" (1/1) ... [2021-10-24 10:20:40,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40" (1/1) ... [2021-10-24 10:20:40,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40" (1/1) ... [2021-10-24 10:20:40,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40" (1/1) ... [2021-10-24 10:20:41,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40" (1/1) ... [2021-10-24 10:20:41,078 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40" (1/1) ... [2021-10-24 10:20:41,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40" (1/1) ... [2021-10-24 10:20:41,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:20:41,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:20:41,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:20:41,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:20:41,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40" (1/1) ... [2021-10-24 10:20:41,141 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:20:41,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:20:41,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:20:41,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:20:41,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:20:41,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:20:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:20:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:20:41,605 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,628 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,634 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,645 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,647 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,649 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,659 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,671 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,691 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,695 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,697 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,700 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,706 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,709 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,711 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,712 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,730 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,733 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,734 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,734 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,737 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,739 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,748 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,756 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,760 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,763 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,768 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,770 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,771 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:41,777 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:20:43,276 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##658: assume !false; [2021-10-24 10:20:43,276 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##657: assume false; [2021-10-24 10:20:43,276 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##665: assume !false; [2021-10-24 10:20:43,277 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##664: assume false; [2021-10-24 10:20:43,277 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##683: assume false; [2021-10-24 10:20:43,277 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##684: assume !false; [2021-10-24 10:20:43,277 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##609: assume false; [2021-10-24 10:20:43,277 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##610: assume !false; [2021-10-24 10:20:43,278 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##639: assume false; [2021-10-24 10:20:43,278 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##640: assume !false; [2021-10-24 10:20:43,278 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-10-24 10:20:43,278 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-10-24 10:20:43,278 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2021-10-24 10:20:43,279 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2021-10-24 10:20:43,279 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume !false; [2021-10-24 10:20:43,279 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##284: assume false; [2021-10-24 10:20:43,280 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##229: assume !false; [2021-10-24 10:20:43,280 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume false; [2021-10-24 10:20:43,280 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2021-10-24 10:20:43,281 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2021-10-24 10:20:43,281 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##369: assume !false; [2021-10-24 10:20:43,282 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2021-10-24 10:20:43,282 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2021-10-24 10:20:43,282 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2021-10-24 10:20:43,283 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2021-10-24 10:20:43,283 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##357: assume false; [2021-10-24 10:20:43,283 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##358: assume !false; [2021-10-24 10:20:43,283 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##368: assume false; [2021-10-24 10:20:43,283 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume !false; [2021-10-24 10:20:43,284 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##403: assume false; [2021-10-24 10:20:43,284 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##427: assume !false; [2021-10-24 10:20:43,284 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##426: assume false; [2021-10-24 10:20:43,284 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume !false; [2021-10-24 10:20:43,284 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume false; [2021-10-24 10:20:43,284 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##439: assume false; [2021-10-24 10:20:43,285 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##440: assume !false; [2021-10-24 10:20:43,285 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2021-10-24 10:20:43,285 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2021-10-24 10:20:43,285 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##485: assume !false; [2021-10-24 10:20:43,286 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##484: assume false; [2021-10-24 10:20:43,286 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##524: assume !false; [2021-10-24 10:20:43,286 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##523: assume false; [2021-10-24 10:20:43,287 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##558: assume !false; [2021-10-24 10:20:43,287 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##557: assume false; [2021-10-24 10:20:43,287 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume !false; [2021-10-24 10:20:43,287 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##186: assume false; [2021-10-24 10:20:43,287 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume !false; [2021-10-24 10:20:43,288 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume false; [2021-10-24 10:20:43,288 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume false; [2021-10-24 10:20:43,288 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##145: assume !false; [2021-10-24 10:20:43,288 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-10-24 10:20:43,289 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-10-24 10:20:43,289 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2021-10-24 10:20:43,289 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2021-10-24 10:20:43,290 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2021-10-24 10:20:43,290 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2021-10-24 10:20:43,290 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##588: assume !false; [2021-10-24 10:20:43,291 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##587: assume false; [2021-10-24 10:20:43,291 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2021-10-24 10:20:43,291 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2021-10-24 10:20:44,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:20:44,755 INFO L299 CfgBuilder]: Removed 277 assume(true) statements. [2021-10-24 10:20:44,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:20:44 BoogieIcfgContainer [2021-10-24 10:20:44,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:20:44,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:20:44,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:20:44,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:20:44,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:20:39" (1/3) ... [2021-10-24 10:20:44,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482ef4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:20:44, skipping insertion in model container [2021-10-24 10:20:44,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:40" (2/3) ... [2021-10-24 10:20:44,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482ef4a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:20:44, skipping insertion in model container [2021-10-24 10:20:44,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:20:44" (3/3) ... [2021-10-24 10:20:44,768 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2021-10-24 10:20:44,774 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:20:44,775 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2021-10-24 10:20:44,825 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:20:44,833 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:20:44,833 INFO L340 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2021-10-24 10:20:44,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 355 states, 299 states have (on average 1.7792642140468227) internal successors, (532), 354 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:44,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-24 10:20:44,872 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:44,873 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-24 10:20:44,874 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:44,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:44,880 INFO L82 PathProgramCache]: Analyzing trace with hash 67194804, now seen corresponding path program 1 times [2021-10-24 10:20:44,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:44,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331082671] [2021-10-24 10:20:44,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:44,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:45,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:45,080 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:45,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331082671] [2021-10-24 10:20:45,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331082671] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:45,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:45,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:20:45,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710235548] [2021-10-24 10:20:45,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:45,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:45,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:45,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:45,106 INFO L87 Difference]: Start difference. First operand has 355 states, 299 states have (on average 1.7792642140468227) internal successors, (532), 354 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:45,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:45,181 INFO L93 Difference]: Finished difference Result 376 states and 506 transitions. [2021-10-24 10:20:45,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:45,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-24 10:20:45,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:45,197 INFO L225 Difference]: With dead ends: 376 [2021-10-24 10:20:45,197 INFO L226 Difference]: Without dead ends: 375 [2021-10-24 10:20:45,198 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:45,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-10-24 10:20:45,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 360. [2021-10-24 10:20:45,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 305 states have (on average 1.5901639344262295) internal successors, (485), 359 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:45,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 485 transitions. [2021-10-24 10:20:45,267 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 485 transitions. Word has length 4 [2021-10-24 10:20:45,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:45,268 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 485 transitions. [2021-10-24 10:20:45,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:45,269 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 485 transitions. [2021-10-24 10:20:45,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-24 10:20:45,269 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:45,269 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-24 10:20:45,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:20:45,270 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:45,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:45,271 INFO L82 PathProgramCache]: Analyzing trace with hash 149838055, now seen corresponding path program 1 times [2021-10-24 10:20:45,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:45,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209836540] [2021-10-24 10:20:45,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:45,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:45,348 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:45,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209836540] [2021-10-24 10:20:45,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209836540] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:45,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:45,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:45,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980672707] [2021-10-24 10:20:45,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:45,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:45,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:45,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:45,356 INFO L87 Difference]: Start difference. First operand 360 states and 485 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:45,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:45,682 INFO L93 Difference]: Finished difference Result 378 states and 519 transitions. [2021-10-24 10:20:45,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:45,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-24 10:20:45,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:45,690 INFO L225 Difference]: With dead ends: 378 [2021-10-24 10:20:45,691 INFO L226 Difference]: Without dead ends: 378 [2021-10-24 10:20:45,697 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:45,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-10-24 10:20:45,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 355. [2021-10-24 10:20:45,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 319 states have (on average 1.5329153605015673) internal successors, (489), 354 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:45,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 489 transitions. [2021-10-24 10:20:45,733 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 489 transitions. Word has length 6 [2021-10-24 10:20:45,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:45,733 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 489 transitions. [2021-10-24 10:20:45,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:45,734 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 489 transitions. [2021-10-24 10:20:45,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-24 10:20:45,735 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:45,735 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:45,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:20:45,735 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:45,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:45,736 INFO L82 PathProgramCache]: Analyzing trace with hash 249462892, now seen corresponding path program 1 times [2021-10-24 10:20:45,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:45,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321399912] [2021-10-24 10:20:45,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:45,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:45,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:45,787 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:45,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321399912] [2021-10-24 10:20:45,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321399912] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:45,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:45,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-24 10:20:45,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024028494] [2021-10-24 10:20:45,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:45,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:45,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:45,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:45,790 INFO L87 Difference]: Start difference. First operand 355 states and 489 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:45,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:45,823 INFO L93 Difference]: Finished difference Result 354 states and 488 transitions. [2021-10-24 10:20:45,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:45,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-24 10:20:45,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:45,825 INFO L225 Difference]: With dead ends: 354 [2021-10-24 10:20:45,825 INFO L226 Difference]: Without dead ends: 351 [2021-10-24 10:20:45,826 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:45,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-10-24 10:20:45,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 345. [2021-10-24 10:20:45,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 310 states have (on average 1.5032258064516129) internal successors, (466), 344 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:45,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 466 transitions. [2021-10-24 10:20:45,855 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 466 transitions. Word has length 8 [2021-10-24 10:20:45,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:45,855 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 466 transitions. [2021-10-24 10:20:45,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:45,856 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 466 transitions. [2021-10-24 10:20:45,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 10:20:45,857 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:45,857 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:45,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 10:20:45,858 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:45,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:45,859 INFO L82 PathProgramCache]: Analyzing trace with hash 2088182250, now seen corresponding path program 1 times [2021-10-24 10:20:45,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:45,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095332877] [2021-10-24 10:20:45,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:45,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:45,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:45,986 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:45,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095332877] [2021-10-24 10:20:45,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095332877] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:45,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:45,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:45,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948416396] [2021-10-24 10:20:45,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:45,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:45,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:45,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:45,995 INFO L87 Difference]: Start difference. First operand 345 states and 466 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:46,040 INFO L93 Difference]: Finished difference Result 391 states and 522 transitions. [2021-10-24 10:20:46,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:46,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-24 10:20:46,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:46,044 INFO L225 Difference]: With dead ends: 391 [2021-10-24 10:20:46,044 INFO L226 Difference]: Without dead ends: 391 [2021-10-24 10:20:46,045 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:46,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2021-10-24 10:20:46,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 373. [2021-10-24 10:20:46,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 341 states have (on average 1.4926686217008798) internal successors, (509), 372 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 509 transitions. [2021-10-24 10:20:46,066 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 509 transitions. Word has length 11 [2021-10-24 10:20:46,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:46,068 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 509 transitions. [2021-10-24 10:20:46,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,069 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 509 transitions. [2021-10-24 10:20:46,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 10:20:46,072 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:46,072 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:46,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-24 10:20:46,073 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:46,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:46,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1062551036, now seen corresponding path program 1 times [2021-10-24 10:20:46,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:46,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010562703] [2021-10-24 10:20:46,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:46,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:46,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:46,192 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:46,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010562703] [2021-10-24 10:20:46,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010562703] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:46,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:46,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:46,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303474289] [2021-10-24 10:20:46,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:46,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:46,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:46,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:46,195 INFO L87 Difference]: Start difference. First operand 373 states and 509 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:46,277 INFO L93 Difference]: Finished difference Result 435 states and 579 transitions. [2021-10-24 10:20:46,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:46,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-24 10:20:46,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:46,281 INFO L225 Difference]: With dead ends: 435 [2021-10-24 10:20:46,281 INFO L226 Difference]: Without dead ends: 435 [2021-10-24 10:20:46,282 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:46,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-10-24 10:20:46,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 351. [2021-10-24 10:20:46,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 329 states have (on average 1.4437689969604863) internal successors, (475), 350 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 475 transitions. [2021-10-24 10:20:46,294 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 475 transitions. Word has length 12 [2021-10-24 10:20:46,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:46,295 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 475 transitions. [2021-10-24 10:20:46,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,296 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 475 transitions. [2021-10-24 10:20:46,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-24 10:20:46,297 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:46,298 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:46,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 10:20:46,298 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:46,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:46,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1013278772, now seen corresponding path program 1 times [2021-10-24 10:20:46,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:46,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123055334] [2021-10-24 10:20:46,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:46,300 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:46,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:46,335 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:46,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123055334] [2021-10-24 10:20:46,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123055334] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:46,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:46,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:46,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788717470] [2021-10-24 10:20:46,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:46,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:46,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:46,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:46,338 INFO L87 Difference]: Start difference. First operand 351 states and 475 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:46,521 INFO L93 Difference]: Finished difference Result 379 states and 509 transitions. [2021-10-24 10:20:46,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:46,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-24 10:20:46,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:46,525 INFO L225 Difference]: With dead ends: 379 [2021-10-24 10:20:46,526 INFO L226 Difference]: Without dead ends: 379 [2021-10-24 10:20:46,526 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:46,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-10-24 10:20:46,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 376. [2021-10-24 10:20:46,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 354 states have (on average 1.4322033898305084) internal successors, (507), 375 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 507 transitions. [2021-10-24 10:20:46,544 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 507 transitions. Word has length 14 [2021-10-24 10:20:46,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:46,544 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 507 transitions. [2021-10-24 10:20:46,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,545 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 507 transitions. [2021-10-24 10:20:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-24 10:20:46,548 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:46,548 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:46,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-24 10:20:46,549 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:46,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:46,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1364450634, now seen corresponding path program 1 times [2021-10-24 10:20:46,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:46,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499471988] [2021-10-24 10:20:46,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:46,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:46,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:46,681 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:46,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499471988] [2021-10-24 10:20:46,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499471988] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:46,683 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:46,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:46,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010884268] [2021-10-24 10:20:46,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:46,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:46,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:46,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:46,701 INFO L87 Difference]: Start difference. First operand 376 states and 507 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:46,909 INFO L93 Difference]: Finished difference Result 379 states and 507 transitions. [2021-10-24 10:20:46,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:46,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-24 10:20:46,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:46,912 INFO L225 Difference]: With dead ends: 379 [2021-10-24 10:20:46,912 INFO L226 Difference]: Without dead ends: 379 [2021-10-24 10:20:46,913 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:46,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-10-24 10:20:46,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 376. [2021-10-24 10:20:46,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 354 states have (on average 1.426553672316384) internal successors, (505), 375 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 505 transitions. [2021-10-24 10:20:46,925 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 505 transitions. Word has length 15 [2021-10-24 10:20:46,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:46,926 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 505 transitions. [2021-10-24 10:20:46,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:46,926 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 505 transitions. [2021-10-24 10:20:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 10:20:46,930 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:46,930 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:46,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-24 10:20:46,931 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:46,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:46,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1184665149, now seen corresponding path program 1 times [2021-10-24 10:20:46,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:46,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351576485] [2021-10-24 10:20:46,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:46,932 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:47,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:47,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:47,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351576485] [2021-10-24 10:20:47,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351576485] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:47,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:47,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:47,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000285513] [2021-10-24 10:20:47,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:47,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:47,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:47,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:47,062 INFO L87 Difference]: Start difference. First operand 376 states and 505 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:47,252 INFO L93 Difference]: Finished difference Result 379 states and 505 transitions. [2021-10-24 10:20:47,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:47,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-24 10:20:47,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:47,256 INFO L225 Difference]: With dead ends: 379 [2021-10-24 10:20:47,256 INFO L226 Difference]: Without dead ends: 379 [2021-10-24 10:20:47,256 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:47,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-10-24 10:20:47,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 376. [2021-10-24 10:20:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 354 states have (on average 1.42090395480226) internal successors, (503), 375 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 503 transitions. [2021-10-24 10:20:47,268 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 503 transitions. Word has length 16 [2021-10-24 10:20:47,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:47,269 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 503 transitions. [2021-10-24 10:20:47,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,269 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 503 transitions. [2021-10-24 10:20:47,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 10:20:47,270 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:47,270 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:47,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-24 10:20:47,271 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:47,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:47,271 INFO L82 PathProgramCache]: Analyzing trace with hash -758987480, now seen corresponding path program 1 times [2021-10-24 10:20:47,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:47,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63638434] [2021-10-24 10:20:47,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:47,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:47,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:47,355 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:47,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63638434] [2021-10-24 10:20:47,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63638434] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:47,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:47,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:47,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435287708] [2021-10-24 10:20:47,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:47,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:47,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:47,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:47,358 INFO L87 Difference]: Start difference. First operand 376 states and 503 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:47,506 INFO L93 Difference]: Finished difference Result 360 states and 486 transitions. [2021-10-24 10:20:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:47,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-24 10:20:47,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:47,510 INFO L225 Difference]: With dead ends: 360 [2021-10-24 10:20:47,510 INFO L226 Difference]: Without dead ends: 360 [2021-10-24 10:20:47,510 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:47,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-24 10:20:47,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-24 10:20:47,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 346 states have (on average 1.4046242774566473) internal successors, (486), 359 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 486 transitions. [2021-10-24 10:20:47,522 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 486 transitions. Word has length 17 [2021-10-24 10:20:47,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:47,522 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 486 transitions. [2021-10-24 10:20:47,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,523 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 486 transitions. [2021-10-24 10:20:47,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-24 10:20:47,524 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:47,524 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:47,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-24 10:20:47,525 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:47,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:47,526 INFO L82 PathProgramCache]: Analyzing trace with hash 1566128545, now seen corresponding path program 1 times [2021-10-24 10:20:47,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:47,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976991098] [2021-10-24 10:20:47,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:47,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:47,579 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:47,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976991098] [2021-10-24 10:20:47,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976991098] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:47,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:47,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:47,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171015788] [2021-10-24 10:20:47,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:47,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:47,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:47,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:47,588 INFO L87 Difference]: Start difference. First operand 360 states and 486 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:47,609 INFO L93 Difference]: Finished difference Result 370 states and 495 transitions. [2021-10-24 10:20:47,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:47,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-24 10:20:47,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:47,612 INFO L225 Difference]: With dead ends: 370 [2021-10-24 10:20:47,612 INFO L226 Difference]: Without dead ends: 356 [2021-10-24 10:20:47,613 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:47,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-10-24 10:20:47,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2021-10-24 10:20:47,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 342 states have (on average 1.4035087719298245) internal successors, (480), 355 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 480 transitions. [2021-10-24 10:20:47,622 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 480 transitions. Word has length 17 [2021-10-24 10:20:47,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:47,622 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 480 transitions. [2021-10-24 10:20:47,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,622 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 480 transitions. [2021-10-24 10:20:47,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:20:47,623 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:47,624 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:47,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-24 10:20:47,624 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:47,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:47,625 INFO L82 PathProgramCache]: Analyzing trace with hash 39550031, now seen corresponding path program 1 times [2021-10-24 10:20:47,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:47,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406814259] [2021-10-24 10:20:47,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:47,626 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:47,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:47,696 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:47,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406814259] [2021-10-24 10:20:47,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406814259] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:47,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:47,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:20:47,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639920983] [2021-10-24 10:20:47,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:47,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:47,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:47,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:47,700 INFO L87 Difference]: Start difference. First operand 356 states and 480 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:47,738 INFO L93 Difference]: Finished difference Result 407 states and 526 transitions. [2021-10-24 10:20:47,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:20:47,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 10:20:47,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:47,743 INFO L225 Difference]: With dead ends: 407 [2021-10-24 10:20:47,743 INFO L226 Difference]: Without dead ends: 407 [2021-10-24 10:20:47,743 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:47,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-10-24 10:20:47,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 343. [2021-10-24 10:20:47,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 329 states have (on average 1.3981762917933132) internal successors, (460), 342 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 460 transitions. [2021-10-24 10:20:47,754 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 460 transitions. Word has length 19 [2021-10-24 10:20:47,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:47,756 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 460 transitions. [2021-10-24 10:20:47,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,756 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 460 transitions. [2021-10-24 10:20:47,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-24 10:20:47,757 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:47,758 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:47,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-24 10:20:47,758 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:47,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:47,759 INFO L82 PathProgramCache]: Analyzing trace with hash -750080855, now seen corresponding path program 1 times [2021-10-24 10:20:47,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:47,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601487512] [2021-10-24 10:20:47,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:47,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:47,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:47,816 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:47,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601487512] [2021-10-24 10:20:47,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601487512] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:47,819 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:47,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:47,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228001435] [2021-10-24 10:20:47,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:47,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:47,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:47,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:47,821 INFO L87 Difference]: Start difference. First operand 343 states and 460 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:47,927 INFO L93 Difference]: Finished difference Result 340 states and 456 transitions. [2021-10-24 10:20:47,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:47,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-24 10:20:47,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:47,931 INFO L225 Difference]: With dead ends: 340 [2021-10-24 10:20:47,931 INFO L226 Difference]: Without dead ends: 340 [2021-10-24 10:20:47,931 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:47,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-10-24 10:20:47,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2021-10-24 10:20:47,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 328 states have (on average 1.3902439024390243) internal successors, (456), 339 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 456 transitions. [2021-10-24 10:20:47,941 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 456 transitions. Word has length 20 [2021-10-24 10:20:47,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:47,942 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 456 transitions. [2021-10-24 10:20:47,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:47,942 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 456 transitions. [2021-10-24 10:20:47,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 10:20:47,944 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:47,944 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:47,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-24 10:20:47,945 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:47,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:47,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1698001296, now seen corresponding path program 1 times [2021-10-24 10:20:47,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:47,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769573013] [2021-10-24 10:20:47,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:47,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:47,985 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:47,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769573013] [2021-10-24 10:20:47,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769573013] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:47,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:47,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:47,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785486828] [2021-10-24 10:20:47,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:47,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:47,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:47,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:47,988 INFO L87 Difference]: Start difference. First operand 340 states and 456 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:48,011 INFO L93 Difference]: Finished difference Result 338 states and 442 transitions. [2021-10-24 10:20:48,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:48,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-24 10:20:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:48,014 INFO L225 Difference]: With dead ends: 338 [2021-10-24 10:20:48,014 INFO L226 Difference]: Without dead ends: 338 [2021-10-24 10:20:48,014 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:48,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-10-24 10:20:48,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 324. [2021-10-24 10:20:48,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 312 states have (on average 1.375) internal successors, (429), 323 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 429 transitions. [2021-10-24 10:20:48,022 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 429 transitions. Word has length 21 [2021-10-24 10:20:48,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:48,022 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 429 transitions. [2021-10-24 10:20:48,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,023 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 429 transitions. [2021-10-24 10:20:48,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 10:20:48,024 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:48,024 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:48,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-24 10:20:48,024 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:48,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:48,025 INFO L82 PathProgramCache]: Analyzing trace with hash -879330402, now seen corresponding path program 1 times [2021-10-24 10:20:48,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:48,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716916844] [2021-10-24 10:20:48,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:48,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:48,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:48,061 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:48,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716916844] [2021-10-24 10:20:48,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716916844] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:48,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:48,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:48,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093800043] [2021-10-24 10:20:48,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:48,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:48,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:48,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:48,063 INFO L87 Difference]: Start difference. First operand 324 states and 429 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:48,080 INFO L93 Difference]: Finished difference Result 326 states and 423 transitions. [2021-10-24 10:20:48,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:48,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-24 10:20:48,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:48,082 INFO L225 Difference]: With dead ends: 326 [2021-10-24 10:20:48,083 INFO L226 Difference]: Without dead ends: 320 [2021-10-24 10:20:48,084 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:48,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-10-24 10:20:48,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 317. [2021-10-24 10:20:48,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 305 states have (on average 1.3573770491803279) internal successors, (414), 316 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 414 transitions. [2021-10-24 10:20:48,093 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 414 transitions. Word has length 21 [2021-10-24 10:20:48,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:48,093 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 414 transitions. [2021-10-24 10:20:48,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,094 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 414 transitions. [2021-10-24 10:20:48,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 10:20:48,095 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:48,095 INFO L512 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] [2021-10-24 10:20:48,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-24 10:20:48,096 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:48,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:48,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1763482425, now seen corresponding path program 1 times [2021-10-24 10:20:48,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:48,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883139900] [2021-10-24 10:20:48,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:48,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:48,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:48,137 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:48,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883139900] [2021-10-24 10:20:48,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883139900] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:48,137 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:48,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:48,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071714362] [2021-10-24 10:20:48,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:48,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:48,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:48,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:48,139 INFO L87 Difference]: Start difference. First operand 317 states and 414 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:48,292 INFO L93 Difference]: Finished difference Result 360 states and 469 transitions. [2021-10-24 10:20:48,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:48,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-24 10:20:48,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:48,295 INFO L225 Difference]: With dead ends: 360 [2021-10-24 10:20:48,295 INFO L226 Difference]: Without dead ends: 360 [2021-10-24 10:20:48,296 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:48,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-24 10:20:48,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 325. [2021-10-24 10:20:48,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 313 states have (on average 1.3610223642172523) internal successors, (426), 324 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 426 transitions. [2021-10-24 10:20:48,321 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 426 transitions. Word has length 22 [2021-10-24 10:20:48,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:48,321 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 426 transitions. [2021-10-24 10:20:48,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,322 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 426 transitions. [2021-10-24 10:20:48,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 10:20:48,324 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:48,324 INFO L512 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] [2021-10-24 10:20:48,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-24 10:20:48,325 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:48,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:48,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1055563924, now seen corresponding path program 1 times [2021-10-24 10:20:48,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:48,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901767196] [2021-10-24 10:20:48,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:48,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:48,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:48,382 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:48,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901767196] [2021-10-24 10:20:48,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901767196] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:48,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:48,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:20:48,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627777435] [2021-10-24 10:20:48,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:48,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:48,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:48,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:48,388 INFO L87 Difference]: Start difference. First operand 325 states and 426 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:48,420 INFO L93 Difference]: Finished difference Result 336 states and 436 transitions. [2021-10-24 10:20:48,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:48,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-24 10:20:48,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:48,425 INFO L225 Difference]: With dead ends: 336 [2021-10-24 10:20:48,426 INFO L226 Difference]: Without dead ends: 323 [2021-10-24 10:20:48,427 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:48,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-10-24 10:20:48,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-10-24 10:20:48,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 311 states have (on average 1.360128617363344) internal successors, (423), 322 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 423 transitions. [2021-10-24 10:20:48,438 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 423 transitions. Word has length 22 [2021-10-24 10:20:48,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:48,438 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 423 transitions. [2021-10-24 10:20:48,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,439 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 423 transitions. [2021-10-24 10:20:48,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 10:20:48,442 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:48,442 INFO L512 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] [2021-10-24 10:20:48,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-24 10:20:48,443 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:48,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1000660230, now seen corresponding path program 1 times [2021-10-24 10:20:48,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:48,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764489451] [2021-10-24 10:20:48,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:48,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:48,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:48,515 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:48,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764489451] [2021-10-24 10:20:48,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764489451] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:48,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:48,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:20:48,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145919517] [2021-10-24 10:20:48,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:48,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:48,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:48,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:48,519 INFO L87 Difference]: Start difference. First operand 323 states and 423 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:48,553 INFO L93 Difference]: Finished difference Result 340 states and 439 transitions. [2021-10-24 10:20:48,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:48,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-24 10:20:48,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:48,556 INFO L225 Difference]: With dead ends: 340 [2021-10-24 10:20:48,557 INFO L226 Difference]: Without dead ends: 340 [2021-10-24 10:20:48,557 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:48,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-10-24 10:20:48,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 325. [2021-10-24 10:20:48,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 313 states have (on average 1.3578274760383386) internal successors, (425), 324 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 425 transitions. [2021-10-24 10:20:48,566 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 425 transitions. Word has length 22 [2021-10-24 10:20:48,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:48,566 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 425 transitions. [2021-10-24 10:20:48,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,567 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 425 transitions. [2021-10-24 10:20:48,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 10:20:48,568 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:48,568 INFO L512 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] [2021-10-24 10:20:48,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-24 10:20:48,569 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:48,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:48,569 INFO L82 PathProgramCache]: Analyzing trace with hash 2143934674, now seen corresponding path program 1 times [2021-10-24 10:20:48,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:48,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081601850] [2021-10-24 10:20:48,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:48,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:48,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:48,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:48,624 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:48,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081601850] [2021-10-24 10:20:48,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081601850] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:48,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:48,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:20:48,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132286186] [2021-10-24 10:20:48,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:48,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:48,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:48,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:48,628 INFO L87 Difference]: Start difference. First operand 325 states and 425 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:48,662 INFO L93 Difference]: Finished difference Result 336 states and 435 transitions. [2021-10-24 10:20:48,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:48,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-24 10:20:48,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:48,665 INFO L225 Difference]: With dead ends: 336 [2021-10-24 10:20:48,665 INFO L226 Difference]: Without dead ends: 323 [2021-10-24 10:20:48,666 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-10-24 10:20:48,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-10-24 10:20:48,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 311 states have (on average 1.3569131832797428) internal successors, (422), 322 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 422 transitions. [2021-10-24 10:20:48,675 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 422 transitions. Word has length 22 [2021-10-24 10:20:48,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:48,676 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 422 transitions. [2021-10-24 10:20:48,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,676 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 422 transitions. [2021-10-24 10:20:48,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-24 10:20:48,677 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:48,677 INFO L512 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] [2021-10-24 10:20:48,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-24 10:20:48,678 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:48,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:48,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1174277606, now seen corresponding path program 1 times [2021-10-24 10:20:48,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:48,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271932094] [2021-10-24 10:20:48,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:48,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:48,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:48,725 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:48,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271932094] [2021-10-24 10:20:48,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271932094] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:48,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:48,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:48,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238404425] [2021-10-24 10:20:48,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:48,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:48,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:48,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:48,728 INFO L87 Difference]: Start difference. First operand 323 states and 422 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:48,931 INFO L93 Difference]: Finished difference Result 338 states and 435 transitions. [2021-10-24 10:20:48,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:48,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-24 10:20:48,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:48,934 INFO L225 Difference]: With dead ends: 338 [2021-10-24 10:20:48,934 INFO L226 Difference]: Without dead ends: 338 [2021-10-24 10:20:48,934 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:48,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-10-24 10:20:48,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 318. [2021-10-24 10:20:48,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 307 states have (on average 1.3485342019543973) internal successors, (414), 317 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 414 transitions. [2021-10-24 10:20:48,943 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 414 transitions. Word has length 23 [2021-10-24 10:20:48,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:48,943 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 414 transitions. [2021-10-24 10:20:48,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:48,944 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 414 transitions. [2021-10-24 10:20:48,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-24 10:20:48,945 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:48,945 INFO L512 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] [2021-10-24 10:20:48,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-24 10:20:48,945 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:48,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:48,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1607438575, now seen corresponding path program 1 times [2021-10-24 10:20:48,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:48,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446592164] [2021-10-24 10:20:48,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:48,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:48,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:48,993 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:48,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446592164] [2021-10-24 10:20:48,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446592164] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:48,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:48,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:48,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260920213] [2021-10-24 10:20:48,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:48,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:48,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:48,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:48,996 INFO L87 Difference]: Start difference. First operand 318 states and 414 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:49,017 INFO L93 Difference]: Finished difference Result 341 states and 436 transitions. [2021-10-24 10:20:49,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:49,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-24 10:20:49,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:49,020 INFO L225 Difference]: With dead ends: 341 [2021-10-24 10:20:49,020 INFO L226 Difference]: Without dead ends: 341 [2021-10-24 10:20:49,020 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:49,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-10-24 10:20:49,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 306. [2021-10-24 10:20:49,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 298 states have (on average 1.3288590604026846) internal successors, (396), 305 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 396 transitions. [2021-10-24 10:20:49,052 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 396 transitions. Word has length 23 [2021-10-24 10:20:49,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:49,053 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 396 transitions. [2021-10-24 10:20:49,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,053 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 396 transitions. [2021-10-24 10:20:49,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:20:49,054 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:49,054 INFO L512 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, 1] [2021-10-24 10:20:49,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-24 10:20:49,055 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:49,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:49,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1753614420, now seen corresponding path program 1 times [2021-10-24 10:20:49,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:49,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154584892] [2021-10-24 10:20:49,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:49,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:49,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:49,235 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:49,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154584892] [2021-10-24 10:20:49,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154584892] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:49,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:49,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:49,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429297326] [2021-10-24 10:20:49,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:49,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:49,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:49,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:49,237 INFO L87 Difference]: Start difference. First operand 306 states and 396 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:49,267 INFO L93 Difference]: Finished difference Result 308 states and 391 transitions. [2021-10-24 10:20:49,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:49,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 10:20:49,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:49,269 INFO L225 Difference]: With dead ends: 308 [2021-10-24 10:20:49,270 INFO L226 Difference]: Without dead ends: 308 [2021-10-24 10:20:49,270 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:49,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-10-24 10:20:49,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 294. [2021-10-24 10:20:49,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 287 states have (on average 1.3170731707317074) internal successors, (378), 293 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 378 transitions. [2021-10-24 10:20:49,277 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 378 transitions. Word has length 24 [2021-10-24 10:20:49,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:49,277 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 378 transitions. [2021-10-24 10:20:49,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,278 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 378 transitions. [2021-10-24 10:20:49,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:20:49,279 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:49,279 INFO L512 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, 1] [2021-10-24 10:20:49,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-24 10:20:49,280 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:49,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:49,280 INFO L82 PathProgramCache]: Analyzing trace with hash -148859889, now seen corresponding path program 1 times [2021-10-24 10:20:49,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:49,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589021403] [2021-10-24 10:20:49,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:49,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:49,327 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:49,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589021403] [2021-10-24 10:20:49,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589021403] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:49,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:49,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:49,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160493986] [2021-10-24 10:20:49,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:49,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:49,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:49,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:49,330 INFO L87 Difference]: Start difference. First operand 294 states and 378 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:49,481 INFO L93 Difference]: Finished difference Result 379 states and 478 transitions. [2021-10-24 10:20:49,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:49,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 10:20:49,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:49,484 INFO L225 Difference]: With dead ends: 379 [2021-10-24 10:20:49,484 INFO L226 Difference]: Without dead ends: 379 [2021-10-24 10:20:49,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:49,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-10-24 10:20:49,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 321. [2021-10-24 10:20:49,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 314 states have (on average 1.2961783439490446) internal successors, (407), 320 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 407 transitions. [2021-10-24 10:20:49,494 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 407 transitions. Word has length 24 [2021-10-24 10:20:49,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:49,495 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 407 transitions. [2021-10-24 10:20:49,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,496 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 407 transitions. [2021-10-24 10:20:49,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:20:49,497 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:49,497 INFO L512 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, 1] [2021-10-24 10:20:49,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-24 10:20:49,497 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:49,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:49,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1595489776, now seen corresponding path program 1 times [2021-10-24 10:20:49,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:49,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187795473] [2021-10-24 10:20:49,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:49,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:49,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:49,570 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:49,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187795473] [2021-10-24 10:20:49,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187795473] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:49,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:49,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:49,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446616122] [2021-10-24 10:20:49,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:49,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:49,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:49,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:49,574 INFO L87 Difference]: Start difference. First operand 321 states and 407 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:49,621 INFO L93 Difference]: Finished difference Result 332 states and 417 transitions. [2021-10-24 10:20:49,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:20:49,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 10:20:49,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:49,623 INFO L225 Difference]: With dead ends: 332 [2021-10-24 10:20:49,623 INFO L226 Difference]: Without dead ends: 317 [2021-10-24 10:20:49,624 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:20:49,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-10-24 10:20:49,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2021-10-24 10:20:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 310 states have (on average 1.2967741935483872) internal successors, (402), 316 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 402 transitions. [2021-10-24 10:20:49,631 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 402 transitions. Word has length 24 [2021-10-24 10:20:49,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:49,632 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 402 transitions. [2021-10-24 10:20:49,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,632 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 402 transitions. [2021-10-24 10:20:49,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 10:20:49,634 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:49,634 INFO L512 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, 1, 1] [2021-10-24 10:20:49,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-24 10:20:49,635 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:49,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:49,636 INFO L82 PathProgramCache]: Analyzing trace with hash -506430590, now seen corresponding path program 1 times [2021-10-24 10:20:49,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:49,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279380553] [2021-10-24 10:20:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:49,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:49,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:49,698 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:49,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279380553] [2021-10-24 10:20:49,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279380553] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:49,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:49,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:49,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995067521] [2021-10-24 10:20:49,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:49,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:49,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:49,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:49,700 INFO L87 Difference]: Start difference. First operand 317 states and 402 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:49,869 INFO L93 Difference]: Finished difference Result 317 states and 399 transitions. [2021-10-24 10:20:49,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:49,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-24 10:20:49,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:49,872 INFO L225 Difference]: With dead ends: 317 [2021-10-24 10:20:49,872 INFO L226 Difference]: Without dead ends: 317 [2021-10-24 10:20:49,872 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:49,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-10-24 10:20:49,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2021-10-24 10:20:49,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 310 states have (on average 1.2870967741935484) internal successors, (399), 316 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 399 transitions. [2021-10-24 10:20:49,880 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 399 transitions. Word has length 25 [2021-10-24 10:20:49,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:49,881 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 399 transitions. [2021-10-24 10:20:49,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:49,881 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 399 transitions. [2021-10-24 10:20:49,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 10:20:49,882 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:49,882 INFO L512 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, 1, 1] [2021-10-24 10:20:49,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-24 10:20:49,883 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:49,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:49,883 INFO L82 PathProgramCache]: Analyzing trace with hash -302097573, now seen corresponding path program 1 times [2021-10-24 10:20:49,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:49,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899637862] [2021-10-24 10:20:49,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:49,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:49,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:49,958 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:49,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899637862] [2021-10-24 10:20:49,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899637862] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:49,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:49,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:49,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600238711] [2021-10-24 10:20:49,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:49,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:49,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:49,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:49,960 INFO L87 Difference]: Start difference. First operand 317 states and 399 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:50,132 INFO L93 Difference]: Finished difference Result 373 states and 457 transitions. [2021-10-24 10:20:50,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:20:50,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-24 10:20:50,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:50,135 INFO L225 Difference]: With dead ends: 373 [2021-10-24 10:20:50,136 INFO L226 Difference]: Without dead ends: 372 [2021-10-24 10:20:50,136 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:20:50,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-10-24 10:20:50,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 330. [2021-10-24 10:20:50,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 323 states have (on average 1.284829721362229) internal successors, (415), 329 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 415 transitions. [2021-10-24 10:20:50,147 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 415 transitions. Word has length 25 [2021-10-24 10:20:50,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:50,147 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 415 transitions. [2021-10-24 10:20:50,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,147 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 415 transitions. [2021-10-24 10:20:50,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 10:20:50,148 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:50,149 INFO L512 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, 1, 1] [2021-10-24 10:20:50,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-24 10:20:50,149 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:50,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:50,150 INFO L82 PathProgramCache]: Analyzing trace with hash -302109489, now seen corresponding path program 1 times [2021-10-24 10:20:50,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:50,150 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504881199] [2021-10-24 10:20:50,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:50,150 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:50,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:50,208 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:50,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504881199] [2021-10-24 10:20:50,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504881199] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:50,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:50,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:50,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566351055] [2021-10-24 10:20:50,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:50,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:50,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:50,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:50,212 INFO L87 Difference]: Start difference. First operand 330 states and 415 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:50,354 INFO L93 Difference]: Finished difference Result 338 states and 421 transitions. [2021-10-24 10:20:50,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:50,355 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-24 10:20:50,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:50,357 INFO L225 Difference]: With dead ends: 338 [2021-10-24 10:20:50,358 INFO L226 Difference]: Without dead ends: 327 [2021-10-24 10:20:50,358 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:50,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-10-24 10:20:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 323. [2021-10-24 10:20:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 316 states have (on average 1.2784810126582278) internal successors, (404), 322 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 404 transitions. [2021-10-24 10:20:50,368 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 404 transitions. Word has length 25 [2021-10-24 10:20:50,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:50,368 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 404 transitions. [2021-10-24 10:20:50,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,369 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 404 transitions. [2021-10-24 10:20:50,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 10:20:50,370 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:50,370 INFO L512 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, 1, 1] [2021-10-24 10:20:50,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-24 10:20:50,371 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:50,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:50,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1429356880, now seen corresponding path program 1 times [2021-10-24 10:20:50,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:50,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046127707] [2021-10-24 10:20:50,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:50,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:50,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:50,415 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:50,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046127707] [2021-10-24 10:20:50,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046127707] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:50,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:50,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:50,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324697912] [2021-10-24 10:20:50,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:50,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:50,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:50,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:50,418 INFO L87 Difference]: Start difference. First operand 323 states and 404 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:50,562 INFO L93 Difference]: Finished difference Result 323 states and 396 transitions. [2021-10-24 10:20:50,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:50,562 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-24 10:20:50,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:50,564 INFO L225 Difference]: With dead ends: 323 [2021-10-24 10:20:50,565 INFO L226 Difference]: Without dead ends: 323 [2021-10-24 10:20:50,565 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:50,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-10-24 10:20:50,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-10-24 10:20:50,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 316 states have (on average 1.2531645569620253) internal successors, (396), 322 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 396 transitions. [2021-10-24 10:20:50,572 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 396 transitions. Word has length 25 [2021-10-24 10:20:50,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:50,572 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 396 transitions. [2021-10-24 10:20:50,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,572 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 396 transitions. [2021-10-24 10:20:50,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 10:20:50,573 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:50,573 INFO L512 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, 1, 1, 1] [2021-10-24 10:20:50,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-24 10:20:50,574 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:50,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:50,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1543923643, now seen corresponding path program 1 times [2021-10-24 10:20:50,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:50,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571495619] [2021-10-24 10:20:50,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:50,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:50,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:50,651 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:50,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571495619] [2021-10-24 10:20:50,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571495619] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:50,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:50,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:50,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372993391] [2021-10-24 10:20:50,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:50,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:50,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:50,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:50,654 INFO L87 Difference]: Start difference. First operand 323 states and 396 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:50,874 INFO L93 Difference]: Finished difference Result 373 states and 458 transitions. [2021-10-24 10:20:50,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:20:50,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-24 10:20:50,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:50,878 INFO L225 Difference]: With dead ends: 373 [2021-10-24 10:20:50,878 INFO L226 Difference]: Without dead ends: 373 [2021-10-24 10:20:50,878 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.3ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:20:50,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-10-24 10:20:50,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 323. [2021-10-24 10:20:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 316 states have (on average 1.2531645569620253) internal successors, (396), 322 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 396 transitions. [2021-10-24 10:20:50,887 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 396 transitions. Word has length 26 [2021-10-24 10:20:50,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:50,887 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 396 transitions. [2021-10-24 10:20:50,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:50,888 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 396 transitions. [2021-10-24 10:20:50,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 10:20:50,889 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:50,889 INFO L512 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, 1, 1, 1] [2021-10-24 10:20:50,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-24 10:20:50,891 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:50,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:50,891 INFO L82 PathProgramCache]: Analyzing trace with hash 2005257310, now seen corresponding path program 1 times [2021-10-24 10:20:50,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:50,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433702528] [2021-10-24 10:20:50,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:50,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:51,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:51,001 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:51,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433702528] [2021-10-24 10:20:51,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433702528] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:51,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:51,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 10:20:51,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525900852] [2021-10-24 10:20:51,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:20:51,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:51,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:20:51,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:20:51,004 INFO L87 Difference]: Start difference. First operand 323 states and 396 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:51,150 INFO L93 Difference]: Finished difference Result 367 states and 439 transitions. [2021-10-24 10:20:51,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 10:20:51,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-24 10:20:51,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:51,153 INFO L225 Difference]: With dead ends: 367 [2021-10-24 10:20:51,153 INFO L226 Difference]: Without dead ends: 351 [2021-10-24 10:20:51,154 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 95.4ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:20:51,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-10-24 10:20:51,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 317. [2021-10-24 10:20:51,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 310 states have (on average 1.2225806451612904) internal successors, (379), 316 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 379 transitions. [2021-10-24 10:20:51,163 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 379 transitions. Word has length 26 [2021-10-24 10:20:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:51,163 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 379 transitions. [2021-10-24 10:20:51,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,164 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 379 transitions. [2021-10-24 10:20:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 10:20:51,165 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:51,165 INFO L512 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, 1, 1, 1] [2021-10-24 10:20:51,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-24 10:20:51,166 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:51,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:51,166 INFO L82 PathProgramCache]: Analyzing trace with hash 133876532, now seen corresponding path program 1 times [2021-10-24 10:20:51,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:51,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285002013] [2021-10-24 10:20:51,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:51,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:51,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:51,215 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:51,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285002013] [2021-10-24 10:20:51,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285002013] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:51,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:51,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:51,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413519579] [2021-10-24 10:20:51,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:51,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:51,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:51,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:51,218 INFO L87 Difference]: Start difference. First operand 317 states and 379 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:51,329 INFO L93 Difference]: Finished difference Result 333 states and 388 transitions. [2021-10-24 10:20:51,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:51,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-24 10:20:51,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:51,332 INFO L225 Difference]: With dead ends: 333 [2021-10-24 10:20:51,333 INFO L226 Difference]: Without dead ends: 333 [2021-10-24 10:20:51,333 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:51,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-10-24 10:20:51,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 319. [2021-10-24 10:20:51,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 312 states have (on average 1.2083333333333333) internal successors, (377), 318 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 377 transitions. [2021-10-24 10:20:51,342 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 377 transitions. Word has length 26 [2021-10-24 10:20:51,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:51,342 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 377 transitions. [2021-10-24 10:20:51,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,343 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 377 transitions. [2021-10-24 10:20:51,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:20:51,344 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:51,344 INFO L512 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, 1, 1, 1, 1] [2021-10-24 10:20:51,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-24 10:20:51,345 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:51,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:51,345 INFO L82 PathProgramCache]: Analyzing trace with hash -127215030, now seen corresponding path program 1 times [2021-10-24 10:20:51,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:51,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456475002] [2021-10-24 10:20:51,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:51,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:51,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:51,399 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:51,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456475002] [2021-10-24 10:20:51,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456475002] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:51,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:51,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:51,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289291004] [2021-10-24 10:20:51,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:51,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:51,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:51,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:51,402 INFO L87 Difference]: Start difference. First operand 319 states and 377 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:51,538 INFO L93 Difference]: Finished difference Result 327 states and 382 transitions. [2021-10-24 10:20:51,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:51,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 10:20:51,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:51,541 INFO L225 Difference]: With dead ends: 327 [2021-10-24 10:20:51,541 INFO L226 Difference]: Without dead ends: 301 [2021-10-24 10:20:51,541 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:51,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-10-24 10:20:51,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 293. [2021-10-24 10:20:51,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 286 states have (on average 1.2167832167832169) internal successors, (348), 292 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 348 transitions. [2021-10-24 10:20:51,549 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 348 transitions. Word has length 27 [2021-10-24 10:20:51,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:51,549 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 348 transitions. [2021-10-24 10:20:51,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,549 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 348 transitions. [2021-10-24 10:20:51,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:20:51,550 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:51,550 INFO L512 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, 1, 1, 1, 1, 1] [2021-10-24 10:20:51,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-24 10:20:51,551 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:51,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:51,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1014613507, now seen corresponding path program 1 times [2021-10-24 10:20:51,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:51,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305556124] [2021-10-24 10:20:51,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:51,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:51,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:51,596 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:51,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305556124] [2021-10-24 10:20:51,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305556124] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:51,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:51,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:51,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109502868] [2021-10-24 10:20:51,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:51,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:51,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:51,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:51,600 INFO L87 Difference]: Start difference. First operand 293 states and 348 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:51,727 INFO L93 Difference]: Finished difference Result 302 states and 353 transitions. [2021-10-24 10:20:51,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:51,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-24 10:20:51,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:51,730 INFO L225 Difference]: With dead ends: 302 [2021-10-24 10:20:51,730 INFO L226 Difference]: Without dead ends: 302 [2021-10-24 10:20:51,731 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:51,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-10-24 10:20:51,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 293. [2021-10-24 10:20:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 286 states have (on average 1.2097902097902098) internal successors, (346), 292 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 346 transitions. [2021-10-24 10:20:51,740 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 346 transitions. Word has length 28 [2021-10-24 10:20:51,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:51,741 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 346 transitions. [2021-10-24 10:20:51,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:51,741 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 346 transitions. [2021-10-24 10:20:51,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:20:51,742 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:51,742 INFO L512 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, 1, 1, 1, 1, 1] [2021-10-24 10:20:51,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-24 10:20:51,742 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:51,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:51,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1390204788, now seen corresponding path program 1 times [2021-10-24 10:20:51,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:51,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330576209] [2021-10-24 10:20:51,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:51,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:51,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:51,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:51,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330576209] [2021-10-24 10:20:51,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330576209] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:51,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:51,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:51,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105631135] [2021-10-24 10:20:51,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:51,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:51,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:51,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:51,814 INFO L87 Difference]: Start difference. First operand 293 states and 346 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:52,058 INFO L93 Difference]: Finished difference Result 321 states and 378 transitions. [2021-10-24 10:20:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:20:52,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-24 10:20:52,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:52,061 INFO L225 Difference]: With dead ends: 321 [2021-10-24 10:20:52,061 INFO L226 Difference]: Without dead ends: 321 [2021-10-24 10:20:52,061 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.8ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:20:52,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-10-24 10:20:52,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 293. [2021-10-24 10:20:52,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 286 states have (on average 1.2097902097902098) internal successors, (346), 292 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 346 transitions. [2021-10-24 10:20:52,069 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 346 transitions. Word has length 28 [2021-10-24 10:20:52,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:52,069 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 346 transitions. [2021-10-24 10:20:52,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,072 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 346 transitions. [2021-10-24 10:20:52,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-24 10:20:52,073 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:52,073 INFO L512 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, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:52,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-24 10:20:52,073 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:52,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:52,074 INFO L82 PathProgramCache]: Analyzing trace with hash 173482979, now seen corresponding path program 1 times [2021-10-24 10:20:52,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:52,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310102176] [2021-10-24 10:20:52,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:52,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:52,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:52,120 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:52,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310102176] [2021-10-24 10:20:52,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310102176] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:52,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:52,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:52,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38633361] [2021-10-24 10:20:52,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:52,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:52,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:52,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:52,122 INFO L87 Difference]: Start difference. First operand 293 states and 346 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:52,178 INFO L93 Difference]: Finished difference Result 318 states and 369 transitions. [2021-10-24 10:20:52,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:20:52,178 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-24 10:20:52,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:52,180 INFO L225 Difference]: With dead ends: 318 [2021-10-24 10:20:52,181 INFO L226 Difference]: Without dead ends: 303 [2021-10-24 10:20:52,181 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:20:52,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-10-24 10:20:52,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 290. [2021-10-24 10:20:52,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 283 states have (on average 1.2014134275618376) internal successors, (340), 289 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 340 transitions. [2021-10-24 10:20:52,189 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 340 transitions. Word has length 29 [2021-10-24 10:20:52,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:52,189 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 340 transitions. [2021-10-24 10:20:52,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,189 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 340 transitions. [2021-10-24 10:20:52,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-24 10:20:52,191 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:52,191 INFO L512 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, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:52,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-24 10:20:52,191 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:52,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:52,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1921566968, now seen corresponding path program 1 times [2021-10-24 10:20:52,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:52,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600770928] [2021-10-24 10:20:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:52,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:52,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:52,241 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:52,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600770928] [2021-10-24 10:20:52,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600770928] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:52,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:52,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:52,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322962559] [2021-10-24 10:20:52,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:52,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:52,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:52,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:52,244 INFO L87 Difference]: Start difference. First operand 290 states and 340 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:52,374 INFO L93 Difference]: Finished difference Result 266 states and 310 transitions. [2021-10-24 10:20:52,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:52,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-24 10:20:52,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:52,377 INFO L225 Difference]: With dead ends: 266 [2021-10-24 10:20:52,377 INFO L226 Difference]: Without dead ends: 266 [2021-10-24 10:20:52,377 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:52,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-24 10:20:52,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-24 10:20:52,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 259 states have (on average 1.196911196911197) internal successors, (310), 265 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 310 transitions. [2021-10-24 10:20:52,384 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 310 transitions. Word has length 29 [2021-10-24 10:20:52,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:52,385 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 310 transitions. [2021-10-24 10:20:52,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,385 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 310 transitions. [2021-10-24 10:20:52,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-24 10:20:52,386 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:52,386 INFO L512 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, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:52,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-24 10:20:52,387 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:52,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:52,388 INFO L82 PathProgramCache]: Analyzing trace with hash -131377662, now seen corresponding path program 1 times [2021-10-24 10:20:52,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:52,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170667801] [2021-10-24 10:20:52,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:52,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:52,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:52,434 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:52,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170667801] [2021-10-24 10:20:52,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170667801] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:52,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:52,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:52,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833646295] [2021-10-24 10:20:52,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:52,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:52,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:52,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:52,436 INFO L87 Difference]: Start difference. First operand 266 states and 310 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:52,481 INFO L93 Difference]: Finished difference Result 269 states and 312 transitions. [2021-10-24 10:20:52,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:20:52,482 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-10-24 10:20:52,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:52,484 INFO L225 Difference]: With dead ends: 269 [2021-10-24 10:20:52,484 INFO L226 Difference]: Without dead ends: 266 [2021-10-24 10:20:52,484 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:20:52,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-24 10:20:52,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-24 10:20:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 259 states have (on average 1.193050193050193) internal successors, (309), 265 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 309 transitions. [2021-10-24 10:20:52,491 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 309 transitions. Word has length 29 [2021-10-24 10:20:52,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:52,492 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 309 transitions. [2021-10-24 10:20:52,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,492 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 309 transitions. [2021-10-24 10:20:52,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-24 10:20:52,493 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:52,494 INFO L512 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:52,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-24 10:20:52,494 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:52,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:52,495 INFO L82 PathProgramCache]: Analyzing trace with hash 36032888, now seen corresponding path program 1 times [2021-10-24 10:20:52,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:52,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470537156] [2021-10-24 10:20:52,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:52,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:52,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:52,584 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:52,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470537156] [2021-10-24 10:20:52,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470537156] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:52,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:52,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:52,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665713542] [2021-10-24 10:20:52,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:52,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:52,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:52,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:52,587 INFO L87 Difference]: Start difference. First operand 266 states and 309 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:52,734 INFO L93 Difference]: Finished difference Result 289 states and 328 transitions. [2021-10-24 10:20:52,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:20:52,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-10-24 10:20:52,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:52,736 INFO L225 Difference]: With dead ends: 289 [2021-10-24 10:20:52,736 INFO L226 Difference]: Without dead ends: 272 [2021-10-24 10:20:52,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:20:52,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-10-24 10:20:52,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 258. [2021-10-24 10:20:52,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 251 states have (on average 1.1952191235059761) internal successors, (300), 257 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 300 transitions. [2021-10-24 10:20:52,744 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 300 transitions. Word has length 30 [2021-10-24 10:20:52,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:52,744 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 300 transitions. [2021-10-24 10:20:52,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:52,745 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 300 transitions. [2021-10-24 10:20:52,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-24 10:20:52,746 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:52,746 INFO L512 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:52,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-24 10:20:52,746 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:52,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:52,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1773868595, now seen corresponding path program 1 times [2021-10-24 10:20:52,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:52,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150626309] [2021-10-24 10:20:52,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:52,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:52,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:52,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:52,808 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:52,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150626309] [2021-10-24 10:20:52,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150626309] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:52,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:52,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:52,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309448583] [2021-10-24 10:20:52,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:52,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:52,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:52,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:52,811 INFO L87 Difference]: Start difference. First operand 258 states and 300 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:53,031 INFO L93 Difference]: Finished difference Result 266 states and 311 transitions. [2021-10-24 10:20:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:20:53,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-10-24 10:20:53,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:53,033 INFO L225 Difference]: With dead ends: 266 [2021-10-24 10:20:53,034 INFO L226 Difference]: Without dead ends: 266 [2021-10-24 10:20:53,034 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.9ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:20:53,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-24 10:20:53,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 248. [2021-10-24 10:20:53,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 242 states have (on average 1.1859504132231404) internal successors, (287), 247 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 287 transitions. [2021-10-24 10:20:53,040 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 287 transitions. Word has length 30 [2021-10-24 10:20:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:53,040 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 287 transitions. [2021-10-24 10:20:53,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 287 transitions. [2021-10-24 10:20:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-24 10:20:53,042 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:53,042 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:53,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-24 10:20:53,043 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:53,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:53,044 INFO L82 PathProgramCache]: Analyzing trace with hash 515791622, now seen corresponding path program 1 times [2021-10-24 10:20:53,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:53,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791003759] [2021-10-24 10:20:53,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:53,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:53,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:53,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:53,099 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:53,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791003759] [2021-10-24 10:20:53,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791003759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:53,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:53,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:53,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79171833] [2021-10-24 10:20:53,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:53,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:53,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:53,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:53,102 INFO L87 Difference]: Start difference. First operand 248 states and 287 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:53,142 INFO L93 Difference]: Finished difference Result 250 states and 285 transitions. [2021-10-24 10:20:53,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:20:53,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-24 10:20:53,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:53,145 INFO L225 Difference]: With dead ends: 250 [2021-10-24 10:20:53,145 INFO L226 Difference]: Without dead ends: 247 [2021-10-24 10:20:53,145 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:20:53,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-24 10:20:53,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 234. [2021-10-24 10:20:53,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.1746724890829694) internal successors, (269), 233 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 269 transitions. [2021-10-24 10:20:53,159 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 269 transitions. Word has length 31 [2021-10-24 10:20:53,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:53,159 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 269 transitions. [2021-10-24 10:20:53,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,160 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 269 transitions. [2021-10-24 10:20:53,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-24 10:20:53,161 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:53,161 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:53,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-24 10:20:53,161 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:53,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:53,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1367803045, now seen corresponding path program 1 times [2021-10-24 10:20:53,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:53,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518546988] [2021-10-24 10:20:53,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:53,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:53,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:53,235 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:53,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518546988] [2021-10-24 10:20:53,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518546988] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:53,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:53,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:53,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119896082] [2021-10-24 10:20:53,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:53,237 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:53,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:53,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:53,238 INFO L87 Difference]: Start difference. First operand 234 states and 269 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:53,423 INFO L93 Difference]: Finished difference Result 242 states and 281 transitions. [2021-10-24 10:20:53,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:20:53,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-24 10:20:53,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:53,426 INFO L225 Difference]: With dead ends: 242 [2021-10-24 10:20:53,426 INFO L226 Difference]: Without dead ends: 242 [2021-10-24 10:20:53,426 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.8ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:20:53,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-24 10:20:53,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 227. [2021-10-24 10:20:53,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 223 states have (on average 1.1659192825112108) internal successors, (260), 226 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 260 transitions. [2021-10-24 10:20:53,433 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 260 transitions. Word has length 32 [2021-10-24 10:20:53,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:53,433 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 260 transitions. [2021-10-24 10:20:53,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,433 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 260 transitions. [2021-10-24 10:20:53,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 10:20:53,434 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:53,434 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:53,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-24 10:20:53,435 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:53,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:53,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1460252688, now seen corresponding path program 1 times [2021-10-24 10:20:53,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:53,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899892422] [2021-10-24 10:20:53,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:53,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:53,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:53,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:53,474 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:53,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899892422] [2021-10-24 10:20:53,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899892422] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:53,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:53,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:20:53,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959123276] [2021-10-24 10:20:53,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:20:53,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:53,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:20:53,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:20:53,476 INFO L87 Difference]: Start difference. First operand 227 states and 260 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:53,496 INFO L93 Difference]: Finished difference Result 228 states and 259 transitions. [2021-10-24 10:20:53,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:20:53,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-24 10:20:53,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:53,499 INFO L225 Difference]: With dead ends: 228 [2021-10-24 10:20:53,499 INFO L226 Difference]: Without dead ends: 228 [2021-10-24 10:20:53,499 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:53,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-10-24 10:20:53,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 224. [2021-10-24 10:20:53,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 220 states have (on average 1.1636363636363636) internal successors, (256), 223 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2021-10-24 10:20:53,505 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 33 [2021-10-24 10:20:53,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:53,505 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2021-10-24 10:20:53,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,506 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2021-10-24 10:20:53,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 10:20:53,507 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:53,507 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:53,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-24 10:20:53,507 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:53,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:53,508 INFO L82 PathProgramCache]: Analyzing trace with hash 164656509, now seen corresponding path program 1 times [2021-10-24 10:20:53,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:53,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332686983] [2021-10-24 10:20:53,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:53,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:53,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:53,593 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:53,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332686983] [2021-10-24 10:20:53,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332686983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:53,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:53,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 10:20:53,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885130843] [2021-10-24 10:20:53,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:20:53,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:53,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:20:53,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:20:53,595 INFO L87 Difference]: Start difference. First operand 224 states and 256 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:53,770 INFO L93 Difference]: Finished difference Result 242 states and 272 transitions. [2021-10-24 10:20:53,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:20:53,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-24 10:20:53,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:53,772 INFO L225 Difference]: With dead ends: 242 [2021-10-24 10:20:53,772 INFO L226 Difference]: Without dead ends: 198 [2021-10-24 10:20:53,772 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:20:53,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-24 10:20:53,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 178. [2021-10-24 10:20:53,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 175 states have (on average 1.1828571428571428) internal successors, (207), 177 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 207 transitions. [2021-10-24 10:20:53,777 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 207 transitions. Word has length 33 [2021-10-24 10:20:53,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:53,778 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 207 transitions. [2021-10-24 10:20:53,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,778 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 207 transitions. [2021-10-24 10:20:53,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 10:20:53,779 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:53,779 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:53,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-24 10:20:53,780 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:53,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:53,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1247300491, now seen corresponding path program 1 times [2021-10-24 10:20:53,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:53,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343165475] [2021-10-24 10:20:53,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:53,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:53,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:53,865 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:53,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343165475] [2021-10-24 10:20:53,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343165475] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:53,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:53,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:53,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85462114] [2021-10-24 10:20:53,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:53,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:53,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:53,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:53,870 INFO L87 Difference]: Start difference. First operand 178 states and 207 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:53,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:53,996 INFO L93 Difference]: Finished difference Result 208 states and 248 transitions. [2021-10-24 10:20:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:20:53,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-24 10:20:53,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:53,998 INFO L225 Difference]: With dead ends: 208 [2021-10-24 10:20:53,998 INFO L226 Difference]: Without dead ends: 208 [2021-10-24 10:20:53,998 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.1ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:20:53,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-24 10:20:54,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 178. [2021-10-24 10:20:54,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 175 states have (on average 1.1828571428571428) internal successors, (207), 177 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 207 transitions. [2021-10-24 10:20:54,007 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 207 transitions. Word has length 36 [2021-10-24 10:20:54,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:54,008 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 207 transitions. [2021-10-24 10:20:54,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,009 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 207 transitions. [2021-10-24 10:20:54,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-24 10:20:54,010 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:54,010 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:54,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-24 10:20:54,011 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:54,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:54,012 INFO L82 PathProgramCache]: Analyzing trace with hash 2090740063, now seen corresponding path program 1 times [2021-10-24 10:20:54,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:54,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091079855] [2021-10-24 10:20:54,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:54,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:54,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:54,080 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:54,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091079855] [2021-10-24 10:20:54,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091079855] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:54,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:54,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:54,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47456654] [2021-10-24 10:20:54,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:54,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:54,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:54,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:54,083 INFO L87 Difference]: Start difference. First operand 178 states and 207 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:54,112 INFO L93 Difference]: Finished difference Result 166 states and 194 transitions. [2021-10-24 10:20:54,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:20:54,112 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-24 10:20:54,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:54,113 INFO L225 Difference]: With dead ends: 166 [2021-10-24 10:20:54,113 INFO L226 Difference]: Without dead ends: 137 [2021-10-24 10:20:54,114 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:20:54,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-24 10:20:54,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-10-24 10:20:54,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 134 states have (on average 1.171641791044776) internal successors, (157), 136 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 157 transitions. [2021-10-24 10:20:54,117 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 157 transitions. Word has length 37 [2021-10-24 10:20:54,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:54,118 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 157 transitions. [2021-10-24 10:20:54,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,118 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 157 transitions. [2021-10-24 10:20:54,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-24 10:20:54,119 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:54,119 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:54,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-24 10:20:54,119 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:54,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:54,120 INFO L82 PathProgramCache]: Analyzing trace with hash 183553689, now seen corresponding path program 1 times [2021-10-24 10:20:54,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:54,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740923537] [2021-10-24 10:20:54,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:54,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:54,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:54,190 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:54,190 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740923537] [2021-10-24 10:20:54,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740923537] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:54,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:54,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-24 10:20:54,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350511426] [2021-10-24 10:20:54,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 10:20:54,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:54,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 10:20:54,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:20:54,192 INFO L87 Difference]: Start difference. First operand 137 states and 157 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:54,319 INFO L93 Difference]: Finished difference Result 151 states and 170 transitions. [2021-10-24 10:20:54,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 10:20:54,319 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-24 10:20:54,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:54,320 INFO L225 Difference]: With dead ends: 151 [2021-10-24 10:20:54,320 INFO L226 Difference]: Without dead ends: 137 [2021-10-24 10:20:54,321 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 81.4ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-10-24 10:20:54,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-24 10:20:54,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-10-24 10:20:54,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 134 states have (on average 1.164179104477612) internal successors, (156), 136 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 156 transitions. [2021-10-24 10:20:54,324 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 156 transitions. Word has length 40 [2021-10-24 10:20:54,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:54,324 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 156 transitions. [2021-10-24 10:20:54,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,324 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 156 transitions. [2021-10-24 10:20:54,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-24 10:20:54,325 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:54,325 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:54,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-24 10:20:54,325 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:54,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:54,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1773356194, now seen corresponding path program 1 times [2021-10-24 10:20:54,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:54,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729942201] [2021-10-24 10:20:54,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:54,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:54,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:54,374 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:54,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729942201] [2021-10-24 10:20:54,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729942201] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:54,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:54,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 10:20:54,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043911984] [2021-10-24 10:20:54,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:20:54,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:54,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:20:54,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:20:54,377 INFO L87 Difference]: Start difference. First operand 137 states and 156 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:54,464 INFO L93 Difference]: Finished difference Result 162 states and 182 transitions. [2021-10-24 10:20:54,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:20:54,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-24 10:20:54,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:54,465 INFO L225 Difference]: With dead ends: 162 [2021-10-24 10:20:54,465 INFO L226 Difference]: Without dead ends: 146 [2021-10-24 10:20:54,466 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:20:54,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-10-24 10:20:54,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2021-10-24 10:20:54,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 141 states have (on average 1.1560283687943262) internal successors, (163), 143 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 163 transitions. [2021-10-24 10:20:54,470 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 163 transitions. Word has length 40 [2021-10-24 10:20:54,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:54,470 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 163 transitions. [2021-10-24 10:20:54,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,471 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 163 transitions. [2021-10-24 10:20:54,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-24 10:20:54,472 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:54,472 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:54,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-24 10:20:54,473 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:54,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:54,473 INFO L82 PathProgramCache]: Analyzing trace with hash 657994414, now seen corresponding path program 1 times [2021-10-24 10:20:54,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:54,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439900379] [2021-10-24 10:20:54,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:54,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:54,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:54,545 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:54,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439900379] [2021-10-24 10:20:54,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439900379] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:54,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:54,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:20:54,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322025067] [2021-10-24 10:20:54,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:20:54,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:54,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:20:54,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:20:54,547 INFO L87 Difference]: Start difference. First operand 144 states and 163 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:54,675 INFO L93 Difference]: Finished difference Result 151 states and 171 transitions. [2021-10-24 10:20:54,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:20:54,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-10-24 10:20:54,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:54,676 INFO L225 Difference]: With dead ends: 151 [2021-10-24 10:20:54,676 INFO L226 Difference]: Without dead ends: 151 [2021-10-24 10:20:54,677 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.8ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:20:54,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-24 10:20:54,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 122. [2021-10-24 10:20:54,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 1.1083333333333334) internal successors, (133), 121 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2021-10-24 10:20:54,680 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 133 transitions. Word has length 40 [2021-10-24 10:20:54,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:54,680 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-24 10:20:54,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,681 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 133 transitions. [2021-10-24 10:20:54,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-24 10:20:54,681 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:54,682 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:54,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-10-24 10:20:54,682 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:54,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:54,683 INFO L82 PathProgramCache]: Analyzing trace with hash 982728344, now seen corresponding path program 1 times [2021-10-24 10:20:54,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:54,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899590110] [2021-10-24 10:20:54,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:54,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:20:54,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:20:54,714 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:20:54,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899590110] [2021-10-24 10:20:54,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899590110] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:20:54,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:20:54,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:20:54,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474942375] [2021-10-24 10:20:54,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:20:54,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:20:54,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:20:54,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:54,716 INFO L87 Difference]: Start difference. First operand 122 states and 133 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:20:54,724 INFO L93 Difference]: Finished difference Result 136 states and 145 transitions. [2021-10-24 10:20:54,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:20:54,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-24 10:20:54,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:20:54,726 INFO L225 Difference]: With dead ends: 136 [2021-10-24 10:20:54,726 INFO L226 Difference]: Without dead ends: 136 [2021-10-24 10:20:54,726 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:20:54,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-10-24 10:20:54,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 122. [2021-10-24 10:20:54,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 120 states have (on average 1.1) internal successors, (132), 121 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-10-24 10:20:54,730 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 41 [2021-10-24 10:20:54,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:20:54,730 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-24 10:20:54,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:20:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2021-10-24 10:20:54,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-24 10:20:54,731 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:20:54,732 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:20:54,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-10-24 10:20:54,732 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:20:54,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:20:54,733 INFO L82 PathProgramCache]: Analyzing trace with hash -463900371, now seen corresponding path program 1 times [2021-10-24 10:20:54,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:20:54,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591928853] [2021-10-24 10:20:54,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:20:54,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:20:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:20:54,753 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:20:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:20:54,827 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:20:54,827 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:20:54,828 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,831 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,832 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,833 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,834 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,835 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,836 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,846 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:20:54,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-24 10:20:54,853 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:20:54,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:20:54 BoogieIcfgContainer [2021-10-24 10:20:54,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:20:54,997 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:20:54,997 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:20:54,997 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:20:54,998 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:20:44" (3/4) ... [2021-10-24 10:20:55,001 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:20:55,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:20:55,003 INFO L168 Benchmark]: Toolchain (without parser) took 15116.53 ms. Allocated memory was 98.6 MB in the beginning and 239.1 MB in the end (delta: 140.5 MB). Free memory was 71.4 MB in the beginning and 192.6 MB in the end (delta: -121.2 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:20:55,003 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 79.7 MB. Free memory was 45.5 MB in the beginning and 45.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:20:55,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.65 ms. Allocated memory is still 98.6 MB. Free memory was 71.3 MB in the beginning and 46.8 MB in the end (delta: 24.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:20:55,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 251.16 ms. Allocated memory is still 98.6 MB. Free memory was 46.8 MB in the beginning and 73.1 MB in the end (delta: -26.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:20:55,008 INFO L168 Benchmark]: Boogie Preprocessor took 178.03 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 66.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:20:55,008 INFO L168 Benchmark]: RCFGBuilder took 3645.89 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 66.4 MB in the beginning and 93.8 MB in the end (delta: -27.5 MB). Peak memory consumption was 58.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:20:55,009 INFO L168 Benchmark]: TraceAbstraction took 10236.21 ms. Allocated memory was 136.3 MB in the beginning and 239.1 MB in the end (delta: 102.8 MB). Free memory was 92.8 MB in the beginning and 193.6 MB in the end (delta: -100.8 MB). Peak memory consumption was 113.0 MB. Max. memory is 16.1 GB. [2021-10-24 10:20:55,009 INFO L168 Benchmark]: Witness Printer took 4.44 ms. Allocated memory is still 239.1 MB. Free memory is still 192.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:20:55,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 79.7 MB. Free memory was 45.5 MB in the beginning and 45.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 790.65 ms. Allocated memory is still 98.6 MB. Free memory was 71.3 MB in the beginning and 46.8 MB in the end (delta: 24.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 251.16 ms. Allocated memory is still 98.6 MB. Free memory was 46.8 MB in the beginning and 73.1 MB in the end (delta: -26.3 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 178.03 ms. Allocated memory is still 98.6 MB. Free memory was 73.1 MB in the beginning and 66.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3645.89 ms. Allocated memory was 98.6 MB in the beginning and 136.3 MB in the end (delta: 37.7 MB). Free memory was 66.4 MB in the beginning and 93.8 MB in the end (delta: -27.5 MB). Peak memory consumption was 58.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10236.21 ms. Allocated memory was 136.3 MB in the beginning and 239.1 MB in the end (delta: 102.8 MB). Free memory was 92.8 MB in the beginning and 193.6 MB in the end (delta: -100.8 MB). Peak memory consumption was 113.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.44 ms. Allocated memory is still 239.1 MB. Free memory is still 192.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1627. Possible FailurePath: [L42] int FloppyThread ; [L43] int KernelMode ; [L44] int Suspended ; [L45] int Executive ; [L46] int DiskController ; [L47] int FloppyDiskPeripheral ; [L48] int FlConfigCallBack ; [L49] int MaximumInterfaceType ; [L50] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L51] int myStatus ; [L52] int s ; [L53] int UNLOADED ; [L54] int NP ; [L55] int DC ; [L56] int SKIP1 ; [L57] int SKIP2 ; [L58] int MPR1 ; [L59] int MPR3 ; [L60] int IPC ; [L61] int pended ; [L62] int compRegistered ; [L63] int lowerDriverReturn ; [L64] int setEventCalled ; [L65] int customIrp ; [L88] int PagingReferenceCount = 0; [L89] int PagingMutex = 0; [L668] int status ; [L669] int irp = __VERIFIER_nondet_int() ; [L670] int pirp ; [L671] int pirp__IoStatus__Status ; [L672] int irp_choice = __VERIFIER_nondet_int() ; [L673] int devobj = __VERIFIER_nondet_int() ; [L674] int __cil_tmp8 ; [L676] FloppyThread = 0 [L677] KernelMode = 0 [L678] Suspended = 0 [L679] Executive = 0 [L680] DiskController = 0 [L681] FloppyDiskPeripheral = 0 [L682] FlConfigCallBack = 0 [L683] MaximumInterfaceType = 0 [L684] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L685] myStatus = 0 [L686] s = 0 [L687] UNLOADED = 0 [L688] NP = 0 [L689] DC = 0 [L690] SKIP1 = 0 [L691] SKIP2 = 0 [L692] MPR1 = 0 [L693] MPR3 = 0 [L694] IPC = 0 [L695] pended = 0 [L696] compRegistered = 0 [L697] lowerDriverReturn = 0 [L698] setEventCalled = 0 [L699] customIrp = 0 [L703] status = 0 [L704] pirp = irp [L71] UNLOADED = 0 [L72] NP = 1 [L73] DC = 2 [L74] SKIP1 = 3 [L75] SKIP2 = 4 [L76] MPR1 = 5 [L77] MPR3 = 6 [L78] IPC = 7 [L79] s = UNLOADED [L80] pended = 0 [L81] compRegistered = 0 [L82] lowerDriverReturn = 0 [L83] setEventCalled = 0 [L84] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L707] COND TRUE status >= 0 [L708] s = NP [L709] customIrp = 0 [L710] setEventCalled = customIrp [L711] lowerDriverReturn = setEventCalled [L712] compRegistered = lowerDriverReturn [L713] pended = compRegistered [L714] pirp__IoStatus__Status = 0 [L715] myStatus = 0 [L716] COND TRUE irp_choice == 0 [L717] pirp__IoStatus__Status = -1073741637 [L718] myStatus = -1073741637 [L658] s = NP [L659] pended = 0 [L660] compRegistered = 0 [L661] lowerDriverReturn = 0 [L662] setEventCalled = 0 [L663] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L724] COND FALSE !(status < 0) [L728] int tmp_ndt_1; [L729] tmp_ndt_1 = __VERIFIER_nondet_int() [L730] COND FALSE !(tmp_ndt_1 == 0) [L733] int tmp_ndt_2; [L734] tmp_ndt_2 = __VERIFIER_nondet_int() [L735] COND FALSE !(tmp_ndt_2 == 1) [L738] int tmp_ndt_3; [L739] tmp_ndt_3 = __VERIFIER_nondet_int() [L740] COND FALSE !(tmp_ndt_3 == 2) [L743] int tmp_ndt_4; [L744] tmp_ndt_4 = __VERIFIER_nondet_int() [L745] COND TRUE tmp_ndt_4 == 3 [L161] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L162] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L163] int Irp__IoStatus__Information ; [L164] int Irp__IoStatus__Status ; [L165] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L166] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L167] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L168] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L169] int disketteExtension__HoldNewRequests ; [L170] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L171] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L172] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L173] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L174] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L175] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L176] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L177] int irpSp ; [L178] int disketteExtension ; [L179] int ntStatus ; [L180] int doneEvent = __VERIFIER_nondet_int() ; [L181] int irpSp___0 ; [L182] int nextIrpSp ; [L183] int nextIrpSp__Control ; [L184] int irpSp___1 ; [L185] int irpSp__Context ; [L186] int irpSp__Control ; [L187] long __cil_tmp29 ; [L188] long __cil_tmp30 ; [L191] ntStatus = 0 [L192] PagingReferenceCount ++ [L193] COND TRUE PagingReferenceCount == 1 [L196] disketteExtension = DeviceObject__DeviceExtension [L197] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L198] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L207] COND FALSE !(irpSp__MinorFunction == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L236] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND FALSE !(! disketteExtension__IsStarted) [L255] disketteExtension__HoldNewRequests = 1 [L98] int status ; [L99] int threadHandle = __VERIFIER_nondet_int() ; [L100] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L101] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L102] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L103] int Irp__IoStatus__Status ; [L104] int Irp__IoStatus__Information ; [L105] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L106] int ObjAttributes = __VERIFIER_nondet_int() ; [L107] int __cil_tmp12 ; [L108] int __cil_tmp13 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L111] COND FALSE !(DisketteExtension__PoweringDown == 1) [L117] DisketteExtension__ThreadReferenceCount ++ VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L118] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L150] COND TRUE pended == 0 [L151] pended = 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L157] return (259); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L259] __cil_tmp29 = (long )ntStatus VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L260] COND TRUE __cil_tmp29 == 259L [L1066] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1075] COND FALSE !(customIrp == 1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1079] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1086] int tmp_ndt_12; [L1087] tmp_ndt_12 = __VERIFIER_nondet_int() [L1088] COND FALSE !(tmp_ndt_12 == 0) [L1096] return (-1073741823); [L265] COND FALSE !(disketteExtension__FloppyThread != 0) [L268] disketteExtension__FloppyThread = 0 [L269] Irp__IoStatus__Status = 0 [L270] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] COND TRUE s == NP [L272] s = SKIP1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L279] Irp__CurrentLocation ++ [L280] Irp__Tail__Overlay__CurrentStackLocation ++ [L968] int returnVal2 ; [L969] int compRetStatus1 ; [L970] int lcontext = __VERIFIER_nondet_int() ; [L971] unsigned long __cil_tmp7 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L974] COND FALSE !(\read(compRegistered)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L987] int tmp_ndt_10; [L988] tmp_ndt_10 = __VERIFIER_nondet_int() [L989] COND FALSE !(tmp_ndt_10 == 0) [L992] int tmp_ndt_11; [L993] tmp_ndt_11 = __VERIFIER_nondet_int() [L994] COND TRUE tmp_ndt_11 == 1 [L1003] returnVal2 = -1073741823 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1013] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1017] COND FALSE !(s == MPR1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1026] COND TRUE s == SKIP1 [L1027] s = SKIP2 [L1028] lowerDriverReturn = returnVal2 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1036] return (returnVal2); [L281] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L427] PagingReferenceCount -- [L428] COND TRUE PagingReferenceCount == 0 [L431] return (ntStatus); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L767] status = FloppyPnp(devobj, pirp) [L780] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L781] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L788] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L789] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L796] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L797] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L798] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L812] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L813] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1627] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 667]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 355 locations, 55 error locations. Started 1 CEGAR loops. OverallTime: 10028.5ms, OverallIterations: 49, TraceHistogramMax: 1, EmptinessCheckTime: 73.4ms, AutomataDifference: 5603.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 13688 SDtfs, 8305 SDslu, 16044 SDs, 0 SdLazy, 3888 SolverSat, 421 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3402.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 877.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=376occurred in iteration=6, InterpolantAutomatonStates: 208, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 533.7ms AutomataMinimizationTime, 48 MinimizatonAttempts, 774 StatesRemovedByMinimization, 36 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 173.9ms SsaConstructionTime, 760.1ms SatisfiabilityAnalysisTime, 2100.2ms InterpolantComputationTime, 1220 NumberOfCodeBlocks, 1220 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 1130 ConstructedInterpolants, 0 QuantifiedInterpolants, 2907 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 48 InterpolantComputations, 48 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 could not prove your program: unable to determine feasibility of some traces [2021-10-24 10:20:55,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:20:57,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:20:57,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:20:57,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:20:57,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:20:57,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:20:57,975 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:20:57,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:20:57,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:20:57,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:20:57,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:20:57,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:20:57,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:20:57,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:20:57,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:20:57,993 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:20:57,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:20:57,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:20:57,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:20:58,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:20:58,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:20:58,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:20:58,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:20:58,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:20:58,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:20:58,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:20:58,015 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:20:58,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:20:58,017 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:20:58,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:20:58,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:20:58,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:20:58,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:20:58,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:20:58,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:20:58,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:20:58,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:20:58,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:20:58,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:20:58,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:20:58,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:20:58,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-24 10:20:58,059 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:20:58,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:20:58,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:20:58,061 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:20:58,061 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:20:58,061 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:20:58,062 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:20:58,062 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:20:58,062 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:20:58,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-24 10:20:58,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-24 10:20:58,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:20:58,064 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:20:58,064 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-24 10:20:58,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:20:58,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:20:58,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:20:58,065 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-24 10:20:58,065 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-24 10:20:58,065 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-24 10:20:58,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:20:58,066 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:20:58,066 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:20:58,066 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:20:58,066 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:20:58,067 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:20:58,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:20:58,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:20:58,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:20:58,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:20:58,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:20:58,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:20:58,068 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:20:58,069 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:20:58,069 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:20:58,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:20:58,069 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 [2021-10-24 10:20:58,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:20:58,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:20:58,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:20:58,582 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:20:58,583 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:20:58,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-10-24 10:20:58,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/data/cd5ddeaf2/cf99057e9aed4e64947b82dff5d883d1/FLAGc523e0d1a [2021-10-24 10:20:59,449 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:20:59,466 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-10-24 10:20:59,503 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/data/cd5ddeaf2/cf99057e9aed4e64947b82dff5d883d1/FLAGc523e0d1a [2021-10-24 10:20:59,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/data/cd5ddeaf2/cf99057e9aed4e64947b82dff5d883d1 [2021-10-24 10:20:59,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:20:59,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:20:59,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:20:59,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:20:59,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:20:59,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:20:59" (1/1) ... [2021-10-24 10:20:59,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d403ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:59, skipping insertion in model container [2021-10-24 10:20:59,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:20:59" (1/1) ... [2021-10-24 10:20:59,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:20:59,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:21:00,196 WARN L228 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_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-10-24 10:21:00,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:21:00,266 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:21:00,416 WARN L228 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_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-10-24 10:21:00,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:21:00,440 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:21:00,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00 WrapperNode [2021-10-24 10:21:00,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:21:00,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:21:00,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:21:00,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:21:00,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00" (1/1) ... [2021-10-24 10:21:00,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00" (1/1) ... [2021-10-24 10:21:00,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:21:00,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:21:00,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:21:00,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:21:00,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00" (1/1) ... [2021-10-24 10:21:00,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00" (1/1) ... [2021-10-24 10:21:00,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00" (1/1) ... [2021-10-24 10:21:00,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00" (1/1) ... [2021-10-24 10:21:00,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00" (1/1) ... [2021-10-24 10:21:00,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00" (1/1) ... [2021-10-24 10:21:00,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00" (1/1) ... [2021-10-24 10:21:00,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:21:00,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:21:00,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:21:00,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:21:00,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00" (1/1) ... [2021-10-24 10:21:00,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:21:00,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:21:00,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:21:00,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:21:00,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:21:00,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:21:00,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:21:00,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:21:01,106 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,141 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,159 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,168 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,170 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,171 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,176 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,183 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,187 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,191 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,193 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,196 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,199 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,202 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,204 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,205 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,208 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,210 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,211 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,211 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,213 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,216 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,219 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,223 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,225 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,230 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,233 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,234 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,235 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:01,236 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-24 10:21:02,990 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##658: assume !false; [2021-10-24 10:21:02,991 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##657: assume false; [2021-10-24 10:21:02,991 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##665: assume !false; [2021-10-24 10:21:02,991 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##664: assume false; [2021-10-24 10:21:02,991 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##683: assume false; [2021-10-24 10:21:02,992 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##684: assume !false; [2021-10-24 10:21:02,992 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##609: assume false; [2021-10-24 10:21:02,992 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##610: assume !false; [2021-10-24 10:21:02,993 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##639: assume false; [2021-10-24 10:21:02,993 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##640: assume !false; [2021-10-24 10:21:02,993 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-10-24 10:21:02,993 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-10-24 10:21:02,994 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2021-10-24 10:21:02,994 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2021-10-24 10:21:02,994 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume !false; [2021-10-24 10:21:02,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##284: assume false; [2021-10-24 10:21:02,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##229: assume !false; [2021-10-24 10:21:02,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume false; [2021-10-24 10:21:02,995 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2021-10-24 10:21:02,996 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2021-10-24 10:21:02,997 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##369: assume !false; [2021-10-24 10:21:02,998 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2021-10-24 10:21:02,999 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2021-10-24 10:21:02,999 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2021-10-24 10:21:02,999 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2021-10-24 10:21:03,000 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##357: assume false; [2021-10-24 10:21:03,000 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##358: assume !false; [2021-10-24 10:21:03,001 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##368: assume false; [2021-10-24 10:21:03,001 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume !false; [2021-10-24 10:21:03,001 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##403: assume false; [2021-10-24 10:21:03,001 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##427: assume !false; [2021-10-24 10:21:03,001 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##426: assume false; [2021-10-24 10:21:03,002 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume !false; [2021-10-24 10:21:03,002 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume false; [2021-10-24 10:21:03,002 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##439: assume false; [2021-10-24 10:21:03,002 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##440: assume !false; [2021-10-24 10:21:03,003 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2021-10-24 10:21:03,003 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2021-10-24 10:21:03,004 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##485: assume !false; [2021-10-24 10:21:03,004 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##484: assume false; [2021-10-24 10:21:03,004 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##524: assume !false; [2021-10-24 10:21:03,005 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##523: assume false; [2021-10-24 10:21:03,005 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##558: assume !false; [2021-10-24 10:21:03,005 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##557: assume false; [2021-10-24 10:21:03,005 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume !false; [2021-10-24 10:21:03,005 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##186: assume false; [2021-10-24 10:21:03,006 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume !false; [2021-10-24 10:21:03,006 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume false; [2021-10-24 10:21:03,006 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume false; [2021-10-24 10:21:03,006 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##145: assume !false; [2021-10-24 10:21:03,007 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-10-24 10:21:03,007 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-10-24 10:21:03,008 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2021-10-24 10:21:03,008 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2021-10-24 10:21:03,008 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2021-10-24 10:21:03,008 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2021-10-24 10:21:03,009 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##588: assume !false; [2021-10-24 10:21:03,009 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##587: assume false; [2021-10-24 10:21:03,009 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2021-10-24 10:21:03,010 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2021-10-24 10:21:03,039 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:21:03,039 INFO L299 CfgBuilder]: Removed 277 assume(true) statements. [2021-10-24 10:21:03,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:21:03 BoogieIcfgContainer [2021-10-24 10:21:03,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:21:03,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:21:03,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:21:03,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:21:03,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:20:59" (1/3) ... [2021-10-24 10:21:03,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581da44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:21:03, skipping insertion in model container [2021-10-24 10:21:03,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:21:00" (2/3) ... [2021-10-24 10:21:03,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581da44d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:21:03, skipping insertion in model container [2021-10-24 10:21:03,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:21:03" (3/3) ... [2021-10-24 10:21:03,058 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2021-10-24 10:21:03,065 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:21:03,065 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2021-10-24 10:21:03,136 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:21:03,151 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:21:03,153 INFO L340 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2021-10-24 10:21:03,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 573 states, 517 states have (on average 1.6054158607350097) internal successors, (830), 572 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:03,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-24 10:21:03,194 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:03,195 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:03,195 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:03,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:03,208 INFO L82 PathProgramCache]: Analyzing trace with hash -570890686, now seen corresponding path program 1 times [2021-10-24 10:21:03,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:03,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541666016] [2021-10-24 10:21:03,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:03,236 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:03,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:03,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:03,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:21:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:03,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:03,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:03,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:03,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:03,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:03,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:03,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541666016] [2021-10-24 10:21:03,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541666016] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:03,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:03,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:21:03,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351928957] [2021-10-24 10:21:03,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:21:03,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:03,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:21:03,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:21:03,693 INFO L87 Difference]: Start difference. First operand has 573 states, 517 states have (on average 1.6054158607350097) internal successors, (830), 572 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:03,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:03,903 INFO L93 Difference]: Finished difference Result 574 states and 773 transitions. [2021-10-24 10:21:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:21:03,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-24 10:21:03,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:03,928 INFO L225 Difference]: With dead ends: 574 [2021-10-24 10:21:03,929 INFO L226 Difference]: Without dead ends: 572 [2021-10-24 10:21:03,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:21:03,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2021-10-24 10:21:04,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 571. [2021-10-24 10:21:04,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 516 states have (on average 1.4922480620155039) internal successors, (770), 570 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:04,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 770 transitions. [2021-10-24 10:21:04,039 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 770 transitions. Word has length 7 [2021-10-24 10:21:04,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:04,039 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 770 transitions. [2021-10-24 10:21:04,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:04,040 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 770 transitions. [2021-10-24 10:21:04,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:21:04,040 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:04,040 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:04,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:04,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:04,250 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:04,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:04,251 INFO L82 PathProgramCache]: Analyzing trace with hash 538056098, now seen corresponding path program 1 times [2021-10-24 10:21:04,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:04,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54872065] [2021-10-24 10:21:04,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:04,253 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:04,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:04,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:04,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:21:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:04,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:04,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:04,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:04,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:04,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:04,506 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:04,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54872065] [2021-10-24 10:21:04,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54872065] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:04,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:04,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:21:04,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901715470] [2021-10-24 10:21:04,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:21:04,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:04,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:21:04,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:04,511 INFO L87 Difference]: Start difference. First operand 571 states and 770 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:04,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:04,955 INFO L93 Difference]: Finished difference Result 700 states and 950 transitions. [2021-10-24 10:21:04,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:21:04,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-24 10:21:04,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:04,961 INFO L225 Difference]: With dead ends: 700 [2021-10-24 10:21:04,961 INFO L226 Difference]: Without dead ends: 700 [2021-10-24 10:21:04,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:04,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-10-24 10:21:04,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 671. [2021-10-24 10:21:04,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 671 states, 635 states have (on average 1.4440944881889763) internal successors, (917), 670 states have internal predecessors, (917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 917 transitions. [2021-10-24 10:21:04,993 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 917 transitions. Word has length 10 [2021-10-24 10:21:04,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:04,994 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 917 transitions. [2021-10-24 10:21:04,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 917 transitions. [2021-10-24 10:21:04,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 10:21:04,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:04,995 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:05,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:05,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:05,207 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:05,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:05,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1720754753, now seen corresponding path program 1 times [2021-10-24 10:21:05,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:05,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014238939] [2021-10-24 10:21:05,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:05,215 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:05,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:05,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:05,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:21:05,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:05,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:05,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:05,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:05,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:05,487 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:05,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014238939] [2021-10-24 10:21:05,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014238939] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:05,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:05,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:21:05,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719888658] [2021-10-24 10:21:05,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:21:05,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:05,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:21:05,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:05,494 INFO L87 Difference]: Start difference. First operand 671 states and 917 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:05,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:05,516 INFO L93 Difference]: Finished difference Result 670 states and 916 transitions. [2021-10-24 10:21:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:21:05,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-24 10:21:05,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:05,526 INFO L225 Difference]: With dead ends: 670 [2021-10-24 10:21:05,526 INFO L226 Difference]: Without dead ends: 666 [2021-10-24 10:21:05,528 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:05,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-10-24 10:21:05,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2021-10-24 10:21:05,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 631 states have (on average 1.432646592709984) internal successors, (904), 665 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:05,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 904 transitions. [2021-10-24 10:21:05,561 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 904 transitions. Word has length 12 [2021-10-24 10:21:05,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:05,562 INFO L470 AbstractCegarLoop]: Abstraction has 666 states and 904 transitions. [2021-10-24 10:21:05,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:05,562 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 904 transitions. [2021-10-24 10:21:05,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 10:21:05,564 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:05,564 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:05,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:05,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:05,784 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:05,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:05,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1535696421, now seen corresponding path program 1 times [2021-10-24 10:21:05,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:05,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910414745] [2021-10-24 10:21:05,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:05,789 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:05,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:05,790 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:05,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:21:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:05,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:05,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:06,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:06,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:06,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:06,099 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:06,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910414745] [2021-10-24 10:21:06,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910414745] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:06,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:06,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:21:06,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394437379] [2021-10-24 10:21:06,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:21:06,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:06,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:21:06,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:06,104 INFO L87 Difference]: Start difference. First operand 666 states and 904 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:06,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:06,159 INFO L93 Difference]: Finished difference Result 735 states and 990 transitions. [2021-10-24 10:21:06,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:21:06,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-24 10:21:06,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:06,166 INFO L225 Difference]: With dead ends: 735 [2021-10-24 10:21:06,166 INFO L226 Difference]: Without dead ends: 735 [2021-10-24 10:21:06,166 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:06,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-10-24 10:21:06,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 686. [2021-10-24 10:21:06,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 654 states have (on average 1.4388379204892967) internal successors, (941), 685 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:06,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 941 transitions. [2021-10-24 10:21:06,190 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 941 transitions. Word has length 16 [2021-10-24 10:21:06,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:06,191 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 941 transitions. [2021-10-24 10:21:06,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:06,191 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 941 transitions. [2021-10-24 10:21:06,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:21:06,196 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:06,196 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:06,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:06,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:06,410 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:06,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:06,411 INFO L82 PathProgramCache]: Analyzing trace with hash 107438083, now seen corresponding path program 1 times [2021-10-24 10:21:06,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:06,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [832597595] [2021-10-24 10:21:06,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:06,412 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:06,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:06,415 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:06,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:21:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:06,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:06,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:06,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:06,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:06,722 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:06,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [832597595] [2021-10-24 10:21:06,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [832597595] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:06,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:06,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:21:06,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105202369] [2021-10-24 10:21:06,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:21:06,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:06,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:21:06,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:06,725 INFO L87 Difference]: Start difference. First operand 686 states and 941 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:07,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:07,016 INFO L93 Difference]: Finished difference Result 718 states and 981 transitions. [2021-10-24 10:21:07,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:21:07,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 10:21:07,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:07,022 INFO L225 Difference]: With dead ends: 718 [2021-10-24 10:21:07,022 INFO L226 Difference]: Without dead ends: 718 [2021-10-24 10:21:07,022 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:07,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-10-24 10:21:07,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 715. [2021-10-24 10:21:07,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 683 states have (on average 1.4333821376281113) internal successors, (979), 714 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:07,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 979 transitions. [2021-10-24 10:21:07,052 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 979 transitions. Word has length 19 [2021-10-24 10:21:07,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:07,053 INFO L470 AbstractCegarLoop]: Abstraction has 715 states and 979 transitions. [2021-10-24 10:21:07,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:07,053 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 979 transitions. [2021-10-24 10:21:07,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:21:07,055 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:07,055 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:07,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:07,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:07,267 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:07,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:07,267 INFO L82 PathProgramCache]: Analyzing trace with hash 98463890, now seen corresponding path program 1 times [2021-10-24 10:21:07,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:07,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [128285535] [2021-10-24 10:21:07,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:07,269 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:07,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:07,270 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:07,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:21:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:07,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:07,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:07,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:07,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:07,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:07,644 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:07,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [128285535] [2021-10-24 10:21:07,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [128285535] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:07,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:07,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:21:07,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484355749] [2021-10-24 10:21:07,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:21:07,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:07,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:21:07,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:07,647 INFO L87 Difference]: Start difference. First operand 715 states and 979 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:07,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:07,729 INFO L93 Difference]: Finished difference Result 858 states and 1169 transitions. [2021-10-24 10:21:07,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:21:07,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 10:21:07,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:07,736 INFO L225 Difference]: With dead ends: 858 [2021-10-24 10:21:07,736 INFO L226 Difference]: Without dead ends: 858 [2021-10-24 10:21:07,736 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:07,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2021-10-24 10:21:07,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 697. [2021-10-24 10:21:07,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 675 states have (on average 1.4148148148148147) internal successors, (955), 696 states have internal predecessors, (955), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:07,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 955 transitions. [2021-10-24 10:21:07,759 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 955 transitions. Word has length 19 [2021-10-24 10:21:07,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:07,760 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 955 transitions. [2021-10-24 10:21:07,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:07,760 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 955 transitions. [2021-10-24 10:21:07,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-24 10:21:07,761 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:07,762 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:07,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-24 10:21:07,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:07,975 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:07,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:07,976 INFO L82 PathProgramCache]: Analyzing trace with hash -946806949, now seen corresponding path program 1 times [2021-10-24 10:21:07,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:07,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626291485] [2021-10-24 10:21:07,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:07,976 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:07,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:07,978 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:08,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-24 10:21:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:08,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:08,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:08,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:08,372 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:08,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:08,444 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:08,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626291485] [2021-10-24 10:21:08,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1626291485] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:08,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:08,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:08,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199359280] [2021-10-24 10:21:08,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:08,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:08,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:08,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:08,448 INFO L87 Difference]: Start difference. First operand 697 states and 955 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:08,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:08,915 INFO L93 Difference]: Finished difference Result 863 states and 1165 transitions. [2021-10-24 10:21:08,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:21:08,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-10-24 10:21:08,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:08,920 INFO L225 Difference]: With dead ends: 863 [2021-10-24 10:21:08,920 INFO L226 Difference]: Without dead ends: 861 [2021-10-24 10:21:08,921 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.6ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:08,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2021-10-24 10:21:08,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 751. [2021-10-24 10:21:08,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 729 states have (on average 1.3950617283950617) internal successors, (1017), 750 states have internal predecessors, (1017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:08,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1017 transitions. [2021-10-24 10:21:08,945 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1017 transitions. Word has length 20 [2021-10-24 10:21:08,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:08,946 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 1017 transitions. [2021-10-24 10:21:08,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:08,946 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1017 transitions. [2021-10-24 10:21:08,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 10:21:08,947 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:08,947 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:08,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:09,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:09,161 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:09,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:09,161 INFO L82 PathProgramCache]: Analyzing trace with hash 180793810, now seen corresponding path program 1 times [2021-10-24 10:21:09,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:09,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36270736] [2021-10-24 10:21:09,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:09,162 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:09,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:09,164 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:09,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-24 10:21:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:09,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:09,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:09,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:09,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:09,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36270736] [2021-10-24 10:21:09,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [36270736] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:09,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:09,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:09,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037532799] [2021-10-24 10:21:09,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:09,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:09,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:09,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:09,642 INFO L87 Difference]: Start difference. First operand 751 states and 1017 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:10,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:10,083 INFO L93 Difference]: Finished difference Result 919 states and 1230 transitions. [2021-10-24 10:21:10,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:21:10,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-24 10:21:10,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:10,089 INFO L225 Difference]: With dead ends: 919 [2021-10-24 10:21:10,090 INFO L226 Difference]: Without dead ends: 917 [2021-10-24 10:21:10,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 49.4ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:10,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2021-10-24 10:21:10,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 800. [2021-10-24 10:21:10,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 778 states have (on average 1.3791773778920309) internal successors, (1073), 799 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:10,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1073 transitions. [2021-10-24 10:21:10,111 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1073 transitions. Word has length 21 [2021-10-24 10:21:10,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:10,111 INFO L470 AbstractCegarLoop]: Abstraction has 800 states and 1073 transitions. [2021-10-24 10:21:10,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:10,111 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1073 transitions. [2021-10-24 10:21:10,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 10:21:10,112 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:10,113 INFO L512 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] [2021-10-24 10:21:10,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:10,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:10,325 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:10,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:10,326 INFO L82 PathProgramCache]: Analyzing trace with hash 945683314, now seen corresponding path program 1 times [2021-10-24 10:21:10,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:10,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984962698] [2021-10-24 10:21:10,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:10,327 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:10,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:10,329 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:10,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 10:21:10,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:10,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:21:10,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:10,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:10,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:10,748 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:10,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984962698] [2021-10-24 10:21:10,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984962698] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:10,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:10,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:10,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363096355] [2021-10-24 10:21:10,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:10,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:10,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:10,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:10,751 INFO L87 Difference]: Start difference. First operand 800 states and 1073 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:10,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:10,809 INFO L93 Difference]: Finished difference Result 810 states and 1082 transitions. [2021-10-24 10:21:10,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:21:10,809 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-24 10:21:10,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:10,814 INFO L225 Difference]: With dead ends: 810 [2021-10-24 10:21:10,814 INFO L226 Difference]: Without dead ends: 792 [2021-10-24 10:21:10,815 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 36.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:21:10,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2021-10-24 10:21:10,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2021-10-24 10:21:10,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 770 states have (on average 1.3805194805194805) internal successors, (1063), 791 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:10,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1063 transitions. [2021-10-24 10:21:10,834 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1063 transitions. Word has length 22 [2021-10-24 10:21:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:10,834 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1063 transitions. [2021-10-24 10:21:10,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:10,835 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1063 transitions. [2021-10-24 10:21:10,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-24 10:21:10,836 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:10,836 INFO L512 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] [2021-10-24 10:21:10,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:11,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:11,050 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:11,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:11,050 INFO L82 PathProgramCache]: Analyzing trace with hash 2136813194, now seen corresponding path program 1 times [2021-10-24 10:21:11,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:11,051 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566221543] [2021-10-24 10:21:11,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:11,051 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:11,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:11,052 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:11,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-24 10:21:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:11,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:11,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:11,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:11,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:11,426 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:11,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566221543] [2021-10-24 10:21:11,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566221543] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:11,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:11,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:21:11,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070836760] [2021-10-24 10:21:11,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:21:11,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:11,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:21:11,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:11,429 INFO L87 Difference]: Start difference. First operand 792 states and 1063 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:11,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:11,689 INFO L93 Difference]: Finished difference Result 776 states and 1046 transitions. [2021-10-24 10:21:11,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:21:11,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-24 10:21:11,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:11,695 INFO L225 Difference]: With dead ends: 776 [2021-10-24 10:21:11,695 INFO L226 Difference]: Without dead ends: 776 [2021-10-24 10:21:11,696 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:11,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2021-10-24 10:21:11,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 776. [2021-10-24 10:21:11,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 762 states have (on average 1.372703412073491) internal successors, (1046), 775 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:11,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1046 transitions. [2021-10-24 10:21:11,718 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1046 transitions. Word has length 23 [2021-10-24 10:21:11,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:11,719 INFO L470 AbstractCegarLoop]: Abstraction has 776 states and 1046 transitions. [2021-10-24 10:21:11,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:11,719 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1046 transitions. [2021-10-24 10:21:11,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 10:21:11,721 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:11,721 INFO L512 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, 1, 1] [2021-10-24 10:21:11,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:11,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:11,934 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:11,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:11,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1371761021, now seen corresponding path program 1 times [2021-10-24 10:21:11,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:11,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65204625] [2021-10-24 10:21:11,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:11,936 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:11,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:11,937 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:11,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-24 10:21:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:12,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:12,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:12,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:12,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:12,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:12,335 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:12,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [65204625] [2021-10-24 10:21:12,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [65204625] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:12,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:12,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:12,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955008308] [2021-10-24 10:21:12,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:12,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:12,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:12,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:12,341 INFO L87 Difference]: Start difference. First operand 776 states and 1046 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:12,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:12,435 INFO L93 Difference]: Finished difference Result 912 states and 1188 transitions. [2021-10-24 10:21:12,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:21:12,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-24 10:21:12,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:12,442 INFO L225 Difference]: With dead ends: 912 [2021-10-24 10:21:12,443 INFO L226 Difference]: Without dead ends: 912 [2021-10-24 10:21:12,443 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 36.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:12,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2021-10-24 10:21:12,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 778. [2021-10-24 10:21:12,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 764 states have (on average 1.3717277486910995) internal successors, (1048), 777 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:12,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1048 transitions. [2021-10-24 10:21:12,470 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1048 transitions. Word has length 25 [2021-10-24 10:21:12,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:12,470 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1048 transitions. [2021-10-24 10:21:12,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:12,471 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1048 transitions. [2021-10-24 10:21:12,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 10:21:12,475 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:12,476 INFO L512 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, 1, 1, 1] [2021-10-24 10:21:12,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:12,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:12,690 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:12,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:12,691 INFO L82 PathProgramCache]: Analyzing trace with hash 458344375, now seen corresponding path program 1 times [2021-10-24 10:21:12,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:12,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047902714] [2021-10-24 10:21:12,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:12,691 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:12,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:12,692 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:12,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-24 10:21:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:13,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:21:13,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:13,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:13,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:13,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:13,180 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:13,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047902714] [2021-10-24 10:21:13,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047902714] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:13,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:13,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:13,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717042406] [2021-10-24 10:21:13,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:13,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:13,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:13,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:13,183 INFO L87 Difference]: Start difference. First operand 778 states and 1048 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:13,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:13,242 INFO L93 Difference]: Finished difference Result 789 states and 1058 transitions. [2021-10-24 10:21:13,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:21:13,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-24 10:21:13,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:13,247 INFO L225 Difference]: With dead ends: 789 [2021-10-24 10:21:13,247 INFO L226 Difference]: Without dead ends: 776 [2021-10-24 10:21:13,248 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 27.6ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:13,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2021-10-24 10:21:13,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 776. [2021-10-24 10:21:13,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 762 states have (on average 1.3713910761154855) internal successors, (1045), 775 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:13,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1045 transitions. [2021-10-24 10:21:13,267 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1045 transitions. Word has length 26 [2021-10-24 10:21:13,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:13,269 INFO L470 AbstractCegarLoop]: Abstraction has 776 states and 1045 transitions. [2021-10-24 10:21:13,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:13,270 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1045 transitions. [2021-10-24 10:21:13,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:21:13,271 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:13,271 INFO L512 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, 1, 1, 1, 1] [2021-10-24 10:21:13,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:13,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:13,494 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:13,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:13,495 INFO L82 PathProgramCache]: Analyzing trace with hash 2044140679, now seen corresponding path program 1 times [2021-10-24 10:21:13,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:13,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681113057] [2021-10-24 10:21:13,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:13,497 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:13,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:13,498 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:13,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-24 10:21:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:13,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:21:13,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:13,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:13,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:14,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:14,012 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:14,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681113057] [2021-10-24 10:21:14,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681113057] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:14,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:14,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:14,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409226244] [2021-10-24 10:21:14,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:14,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:14,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:14,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:14,016 INFO L87 Difference]: Start difference. First operand 776 states and 1045 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:14,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:14,117 INFO L93 Difference]: Finished difference Result 837 states and 1107 transitions. [2021-10-24 10:21:14,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:21:14,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 10:21:14,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:14,123 INFO L225 Difference]: With dead ends: 837 [2021-10-24 10:21:14,124 INFO L226 Difference]: Without dead ends: 837 [2021-10-24 10:21:14,124 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 35.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:14,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2021-10-24 10:21:14,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 778. [2021-10-24 10:21:14,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 764 states have (on average 1.3704188481675392) internal successors, (1047), 777 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:14,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1047 transitions. [2021-10-24 10:21:14,147 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1047 transitions. Word has length 27 [2021-10-24 10:21:14,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:14,147 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1047 transitions. [2021-10-24 10:21:14,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:14,148 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1047 transitions. [2021-10-24 10:21:14,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:21:14,150 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:14,150 INFO L512 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, 1, 1, 1, 1] [2021-10-24 10:21:14,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:14,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:14,365 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:14,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:14,365 INFO L82 PathProgramCache]: Analyzing trace with hash -610986493, now seen corresponding path program 1 times [2021-10-24 10:21:14,366 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:14,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493978223] [2021-10-24 10:21:14,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:14,366 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:14,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:14,368 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:14,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-24 10:21:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:14,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:14,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:14,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:14,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:14,855 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:14,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493978223] [2021-10-24 10:21:14,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493978223] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:14,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:14,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:21:14,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685345721] [2021-10-24 10:21:14,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:21:14,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:14,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:21:14,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:14,858 INFO L87 Difference]: Start difference. First operand 778 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:14,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:14,896 INFO L93 Difference]: Finished difference Result 782 states and 1038 transitions. [2021-10-24 10:21:14,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:21:14,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 10:21:14,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:14,902 INFO L225 Difference]: With dead ends: 782 [2021-10-24 10:21:14,903 INFO L226 Difference]: Without dead ends: 769 [2021-10-24 10:21:14,903 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:14,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2021-10-24 10:21:14,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 763. [2021-10-24 10:21:14,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 749 states have (on average 1.3591455273698265) internal successors, (1018), 762 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:14,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1018 transitions. [2021-10-24 10:21:14,948 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1018 transitions. Word has length 27 [2021-10-24 10:21:14,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:14,949 INFO L470 AbstractCegarLoop]: Abstraction has 763 states and 1018 transitions. [2021-10-24 10:21:14,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:14,949 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1018 transitions. [2021-10-24 10:21:14,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:21:14,951 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:14,951 INFO L512 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, 1, 1, 1, 1, 1] [2021-10-24 10:21:14,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:15,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:15,174 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:15,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:15,175 INFO L82 PathProgramCache]: Analyzing trace with hash 830792837, now seen corresponding path program 1 times [2021-10-24 10:21:15,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:15,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105744554] [2021-10-24 10:21:15,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:15,175 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:15,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:15,176 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:15,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-24 10:21:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:15,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:15,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:15,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:15,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:15,873 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:15,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105744554] [2021-10-24 10:21:15,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105744554] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:15,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:15,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:15,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553209686] [2021-10-24 10:21:15,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:15,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:15,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:15,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:15,875 INFO L87 Difference]: Start difference. First operand 763 states and 1018 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:16,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:16,322 INFO L93 Difference]: Finished difference Result 886 states and 1159 transitions. [2021-10-24 10:21:16,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:21:16,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-24 10:21:16,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:16,330 INFO L225 Difference]: With dead ends: 886 [2021-10-24 10:21:16,331 INFO L226 Difference]: Without dead ends: 886 [2021-10-24 10:21:16,333 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 49.5ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:16,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-10-24 10:21:16,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 764. [2021-10-24 10:21:16,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 751 states have (on average 1.3435419440745673) internal successors, (1009), 763 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:16,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1009 transitions. [2021-10-24 10:21:16,357 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1009 transitions. Word has length 28 [2021-10-24 10:21:16,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:16,358 INFO L470 AbstractCegarLoop]: Abstraction has 764 states and 1009 transitions. [2021-10-24 10:21:16,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:16,358 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1009 transitions. [2021-10-24 10:21:16,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:21:16,359 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:16,360 INFO L512 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, 1, 1, 1, 1, 1] [2021-10-24 10:21:16,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:16,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:16,566 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:16,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:16,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1706944907, now seen corresponding path program 1 times [2021-10-24 10:21:16,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:16,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140557730] [2021-10-24 10:21:16,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:16,567 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:16,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:16,569 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:16,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-24 10:21:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:16,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:21:16,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:17,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:17,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:17,194 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:17,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140557730] [2021-10-24 10:21:17,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140557730] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:17,195 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:17,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:17,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734093945] [2021-10-24 10:21:17,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:17,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:17,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:17,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:17,197 INFO L87 Difference]: Start difference. First operand 764 states and 1009 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:17,259 INFO L93 Difference]: Finished difference Result 775 states and 1019 transitions. [2021-10-24 10:21:17,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:21:17,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-10-24 10:21:17,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:17,264 INFO L225 Difference]: With dead ends: 775 [2021-10-24 10:21:17,265 INFO L226 Difference]: Without dead ends: 762 [2021-10-24 10:21:17,265 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 36.9ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-10-24 10:21:17,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 762. [2021-10-24 10:21:17,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 749 states have (on average 1.343124165554072) internal successors, (1006), 761 states have internal predecessors, (1006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:17,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1006 transitions. [2021-10-24 10:21:17,282 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1006 transitions. Word has length 28 [2021-10-24 10:21:17,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:17,282 INFO L470 AbstractCegarLoop]: Abstraction has 762 states and 1006 transitions. [2021-10-24 10:21:17,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:17,283 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1006 transitions. [2021-10-24 10:21:17,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-24 10:21:17,285 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:17,285 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:17,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:17,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:17,500 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:17,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:17,501 INFO L82 PathProgramCache]: Analyzing trace with hash -879074465, now seen corresponding path program 1 times [2021-10-24 10:21:17,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:17,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692814623] [2021-10-24 10:21:17,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:17,501 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:17,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:17,502 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:17,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-24 10:21:17,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:17,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:17,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:17,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:18,007 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:18,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692814623] [2021-10-24 10:21:18,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692814623] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:18,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:18,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 10:21:18,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109937061] [2021-10-24 10:21:18,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:21:18,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:18,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:21:18,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:18,010 INFO L87 Difference]: Start difference. First operand 762 states and 1006 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:18,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:18,170 INFO L93 Difference]: Finished difference Result 790 states and 1032 transitions. [2021-10-24 10:21:18,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 10:21:18,170 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-24 10:21:18,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:18,176 INFO L225 Difference]: With dead ends: 790 [2021-10-24 10:21:18,176 INFO L226 Difference]: Without dead ends: 752 [2021-10-24 10:21:18,177 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 70.2ms TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-24 10:21:18,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2021-10-24 10:21:18,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2021-10-24 10:21:18,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 739 states have (on average 1.3247631935047361) internal successors, (979), 751 states have internal predecessors, (979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:18,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 979 transitions. [2021-10-24 10:21:18,195 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 979 transitions. Word has length 31 [2021-10-24 10:21:18,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:18,196 INFO L470 AbstractCegarLoop]: Abstraction has 752 states and 979 transitions. [2021-10-24 10:21:18,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:18,196 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 979 transitions. [2021-10-24 10:21:18,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-24 10:21:18,198 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:18,198 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:18,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:18,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:18,413 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:18,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:18,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1700782205, now seen corresponding path program 1 times [2021-10-24 10:21:18,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:18,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932162603] [2021-10-24 10:21:18,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:18,414 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:18,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:18,415 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:18,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-24 10:21:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:18,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:18,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:18,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:18,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:19,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:19,032 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:19,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932162603] [2021-10-24 10:21:19,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932162603] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:19,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:19,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:21:19,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623587680] [2021-10-24 10:21:19,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:21:19,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:19,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:21:19,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:19,034 INFO L87 Difference]: Start difference. First operand 752 states and 979 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:19,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:19,230 INFO L93 Difference]: Finished difference Result 754 states and 982 transitions. [2021-10-24 10:21:19,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:21:19,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-10-24 10:21:19,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:19,235 INFO L225 Difference]: With dead ends: 754 [2021-10-24 10:21:19,235 INFO L226 Difference]: Without dead ends: 754 [2021-10-24 10:21:19,235 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:19,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2021-10-24 10:21:19,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2021-10-24 10:21:19,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 743 states have (on average 1.3216689098250336) internal successors, (982), 753 states have internal predecessors, (982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:19,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 982 transitions. [2021-10-24 10:21:19,292 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 982 transitions. Word has length 31 [2021-10-24 10:21:19,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:19,293 INFO L470 AbstractCegarLoop]: Abstraction has 754 states and 982 transitions. [2021-10-24 10:21:19,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:19,294 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 982 transitions. [2021-10-24 10:21:19,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-24 10:21:19,296 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:19,296 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:19,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:19,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:19,510 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:19,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:19,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1153413219, now seen corresponding path program 1 times [2021-10-24 10:21:19,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:19,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855430452] [2021-10-24 10:21:19,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:19,511 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:19,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:19,512 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:19,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-24 10:21:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:19,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:19,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:20,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:20,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:20,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:20,259 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:20,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855430452] [2021-10-24 10:21:20,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855430452] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:20,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:20,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:20,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013264084] [2021-10-24 10:21:20,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:20,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:20,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:20,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:20,262 INFO L87 Difference]: Start difference. First operand 754 states and 982 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:20,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:20,570 INFO L93 Difference]: Finished difference Result 704 states and 914 transitions. [2021-10-24 10:21:20,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:21:20,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-24 10:21:20,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:20,575 INFO L225 Difference]: With dead ends: 704 [2021-10-24 10:21:20,575 INFO L226 Difference]: Without dead ends: 704 [2021-10-24 10:21:20,575 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 46.3ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:20,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-10-24 10:21:20,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 702. [2021-10-24 10:21:20,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 691 states have (on average 1.321273516642547) internal successors, (913), 701 states have internal predecessors, (913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:20,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 913 transitions. [2021-10-24 10:21:20,589 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 913 transitions. Word has length 32 [2021-10-24 10:21:20,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:20,590 INFO L470 AbstractCegarLoop]: Abstraction has 702 states and 913 transitions. [2021-10-24 10:21:20,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:20,590 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 913 transitions. [2021-10-24 10:21:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-24 10:21:20,591 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:20,591 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:20,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-10-24 10:21:20,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:20,804 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:20,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:20,805 INFO L82 PathProgramCache]: Analyzing trace with hash -311747134, now seen corresponding path program 1 times [2021-10-24 10:21:20,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:20,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [401618343] [2021-10-24 10:21:20,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:20,806 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:20,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:20,806 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:20,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-24 10:21:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:21,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-24 10:21:21,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:21,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:21,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:21,465 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:21,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [401618343] [2021-10-24 10:21:21,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [401618343] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:21,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:21,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-24 10:21:21,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056457819] [2021-10-24 10:21:21,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 10:21:21,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:21,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 10:21:21,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:21:21,468 INFO L87 Difference]: Start difference. First operand 702 states and 913 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:21,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:21,589 INFO L93 Difference]: Finished difference Result 713 states and 923 transitions. [2021-10-24 10:21:21,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:21:21,589 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-24 10:21:21,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:21,592 INFO L225 Difference]: With dead ends: 713 [2021-10-24 10:21:21,592 INFO L226 Difference]: Without dead ends: 694 [2021-10-24 10:21:21,593 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 111.5ms TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-10-24 10:21:21,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2021-10-24 10:21:21,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2021-10-24 10:21:21,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 683 states have (on average 1.3206442166910688) internal successors, (902), 693 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:21,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 902 transitions. [2021-10-24 10:21:21,611 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 902 transitions. Word has length 32 [2021-10-24 10:21:21,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:21,612 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 902 transitions. [2021-10-24 10:21:21,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:21,612 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 902 transitions. [2021-10-24 10:21:21,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-24 10:21:21,628 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:21,628 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:21,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:21,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:21,844 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:21,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:21,844 INFO L82 PathProgramCache]: Analyzing trace with hash -909472821, now seen corresponding path program 1 times [2021-10-24 10:21:21,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:21,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851527950] [2021-10-24 10:21:21,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:21,845 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:21,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:21,847 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:21,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-24 10:21:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:22,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:22,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:22,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:22,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:22,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:22,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:22,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851527950] [2021-10-24 10:21:22,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851527950] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:22,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:22,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:21:22,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125427475] [2021-10-24 10:21:22,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:21:22,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:22,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:21:22,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:21:22,418 INFO L87 Difference]: Start difference. First operand 694 states and 902 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:22,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:22,467 INFO L93 Difference]: Finished difference Result 670 states and 860 transitions. [2021-10-24 10:21:22,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:21:22,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-24 10:21:22,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:22,472 INFO L225 Difference]: With dead ends: 670 [2021-10-24 10:21:22,472 INFO L226 Difference]: Without dead ends: 670 [2021-10-24 10:21:22,472 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:21:22,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2021-10-24 10:21:22,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 654. [2021-10-24 10:21:22,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 643 states have (on average 1.312597200622084) internal successors, (844), 653 states have internal predecessors, (844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:22,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 844 transitions. [2021-10-24 10:21:22,485 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 844 transitions. Word has length 32 [2021-10-24 10:21:22,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:22,486 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 844 transitions. [2021-10-24 10:21:22,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:22,486 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 844 transitions. [2021-10-24 10:21:22,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 10:21:22,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:22,488 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:22,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:22,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:22,694 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:22,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:22,694 INFO L82 PathProgramCache]: Analyzing trace with hash -353842307, now seen corresponding path program 1 times [2021-10-24 10:21:22,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:22,695 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041684943] [2021-10-24 10:21:22,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:22,695 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:22,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:22,697 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:22,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-24 10:21:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:23,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:23,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:23,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:23,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:23,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:23,267 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:23,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041684943] [2021-10-24 10:21:23,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041684943] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:23,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:23,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 10:21:23,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598024958] [2021-10-24 10:21:23,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:21:23,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:23,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:21:23,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:23,272 INFO L87 Difference]: Start difference. First operand 654 states and 844 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:23,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:23,378 INFO L93 Difference]: Finished difference Result 751 states and 939 transitions. [2021-10-24 10:21:23,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 10:21:23,381 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-24 10:21:23,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:23,385 INFO L225 Difference]: With dead ends: 751 [2021-10-24 10:21:23,386 INFO L226 Difference]: Without dead ends: 751 [2021-10-24 10:21:23,389 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 66.8ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-24 10:21:23,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2021-10-24 10:21:23,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 657. [2021-10-24 10:21:23,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 646 states have (on average 1.3111455108359134) internal successors, (847), 656 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:23,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 847 transitions. [2021-10-24 10:21:23,404 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 847 transitions. Word has length 33 [2021-10-24 10:21:23,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:23,404 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 847 transitions. [2021-10-24 10:21:23,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:23,405 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 847 transitions. [2021-10-24 10:21:23,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 10:21:23,406 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:23,406 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:23,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:23,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:23,620 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:23,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:23,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1257835912, now seen corresponding path program 1 times [2021-10-24 10:21:23,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:23,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751851696] [2021-10-24 10:21:23,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:23,621 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:23,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:23,622 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:23,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-24 10:21:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:24,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:24,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:24,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:24,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:24,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:24,388 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:24,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751851696] [2021-10-24 10:21:24,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751851696] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:24,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:24,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:24,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213128735] [2021-10-24 10:21:24,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:24,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:24,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:24,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:24,392 INFO L87 Difference]: Start difference. First operand 657 states and 847 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:24,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:24,609 INFO L93 Difference]: Finished difference Result 602 states and 766 transitions. [2021-10-24 10:21:24,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:21:24,609 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-24 10:21:24,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:24,613 INFO L225 Difference]: With dead ends: 602 [2021-10-24 10:21:24,613 INFO L226 Difference]: Without dead ends: 602 [2021-10-24 10:21:24,613 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 47.7ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:24,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2021-10-24 10:21:24,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2021-10-24 10:21:24,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 591 states have (on average 1.2961082910321489) internal successors, (766), 601 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 766 transitions. [2021-10-24 10:21:24,626 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 766 transitions. Word has length 33 [2021-10-24 10:21:24,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:24,627 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 766 transitions. [2021-10-24 10:21:24,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 766 transitions. [2021-10-24 10:21:24,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-24 10:21:24,628 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:24,629 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:24,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:24,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:24,842 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:24,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:24,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1740926462, now seen corresponding path program 1 times [2021-10-24 10:21:24,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:24,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673340123] [2021-10-24 10:21:24,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:24,843 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:24,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:24,844 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:24,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-24 10:21:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:25,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:21:25,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:25,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:25,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:25,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:25,618 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:25,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673340123] [2021-10-24 10:21:25,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [673340123] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:25,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:25,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2021-10-24 10:21:25,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193638406] [2021-10-24 10:21:25,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-24 10:21:25,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:25,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-24 10:21:25,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-24 10:21:25,620 INFO L87 Difference]: Start difference. First operand 602 states and 766 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:26,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:26,253 INFO L93 Difference]: Finished difference Result 1072 states and 1349 transitions. [2021-10-24 10:21:26,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 10:21:26,254 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-24 10:21:26,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:26,260 INFO L225 Difference]: With dead ends: 1072 [2021-10-24 10:21:26,260 INFO L226 Difference]: Without dead ends: 1012 [2021-10-24 10:21:26,260 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 202.6ms TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-10-24 10:21:26,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2021-10-24 10:21:26,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 580. [2021-10-24 10:21:26,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 569 states have (on average 1.3022847100175747) internal successors, (741), 579 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:26,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 741 transitions. [2021-10-24 10:21:26,274 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 741 transitions. Word has length 34 [2021-10-24 10:21:26,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:26,275 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 741 transitions. [2021-10-24 10:21:26,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:26,275 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 741 transitions. [2021-10-24 10:21:26,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-24 10:21:26,276 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:26,277 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:26,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:26,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:26,489 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:26,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:26,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1333490113, now seen corresponding path program 1 times [2021-10-24 10:21:26,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:26,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325592602] [2021-10-24 10:21:26,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:26,490 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:26,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:26,491 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:26,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-24 10:21:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:26,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:26,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:27,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:27,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:27,154 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:27,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325592602] [2021-10-24 10:21:27,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325592602] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:27,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:27,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 10:21:27,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401385213] [2021-10-24 10:21:27,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:21:27,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:27,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:21:27,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:21:27,156 INFO L87 Difference]: Start difference. First operand 580 states and 741 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:27,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:27,224 INFO L93 Difference]: Finished difference Result 562 states and 707 transitions. [2021-10-24 10:21:27,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:21:27,225 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-24 10:21:27,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:27,229 INFO L225 Difference]: With dead ends: 562 [2021-10-24 10:21:27,229 INFO L226 Difference]: Without dead ends: 562 [2021-10-24 10:21:27,229 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:21:27,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-10-24 10:21:27,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 546. [2021-10-24 10:21:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 536 states have (on average 1.289179104477612) internal successors, (691), 545 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:27,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 691 transitions. [2021-10-24 10:21:27,252 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 691 transitions. Word has length 35 [2021-10-24 10:21:27,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:27,252 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 691 transitions. [2021-10-24 10:21:27,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:27,253 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 691 transitions. [2021-10-24 10:21:27,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 10:21:27,255 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:27,255 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:27,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:27,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:27,471 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:27,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:27,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1624718873, now seen corresponding path program 1 times [2021-10-24 10:21:27,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:27,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767793346] [2021-10-24 10:21:27,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:27,472 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:27,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:27,473 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:27,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-24 10:21:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:27,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:27,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:28,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:28,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:28,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:28,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:28,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767793346] [2021-10-24 10:21:28,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767793346] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:28,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:28,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:28,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006382207] [2021-10-24 10:21:28,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:28,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:28,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:28,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:28,381 INFO L87 Difference]: Start difference. First operand 546 states and 691 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:28,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:28,632 INFO L93 Difference]: Finished difference Result 546 states and 685 transitions. [2021-10-24 10:21:28,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:21:28,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-24 10:21:28,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:28,635 INFO L225 Difference]: With dead ends: 546 [2021-10-24 10:21:28,635 INFO L226 Difference]: Without dead ends: 546 [2021-10-24 10:21:28,635 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 42.6ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:28,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-10-24 10:21:28,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 546. [2021-10-24 10:21:28,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 536 states have (on average 1.2779850746268657) internal successors, (685), 545 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:28,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 685 transitions. [2021-10-24 10:21:28,644 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 685 transitions. Word has length 36 [2021-10-24 10:21:28,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:28,645 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 685 transitions. [2021-10-24 10:21:28,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:28,645 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 685 transitions. [2021-10-24 10:21:28,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-24 10:21:28,646 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:28,646 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:28,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (27)] Ended with exit code 0 [2021-10-24 10:21:28,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:28,859 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:28,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:28,860 INFO L82 PathProgramCache]: Analyzing trace with hash -307255467, now seen corresponding path program 1 times [2021-10-24 10:21:28,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:28,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020676283] [2021-10-24 10:21:28,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:28,861 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:28,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:28,862 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:28,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-24 10:21:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:29,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:21:29,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:29,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:29,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:29,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:29,632 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:29,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020676283] [2021-10-24 10:21:29,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020676283] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:29,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:29,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-24 10:21:29,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231109789] [2021-10-24 10:21:29,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 10:21:29,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:29,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 10:21:29,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:21:29,634 INFO L87 Difference]: Start difference. First operand 546 states and 685 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:29,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:29,845 INFO L93 Difference]: Finished difference Result 611 states and 748 transitions. [2021-10-24 10:21:29,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 10:21:29,846 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-24 10:21:29,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:29,850 INFO L225 Difference]: With dead ends: 611 [2021-10-24 10:21:29,850 INFO L226 Difference]: Without dead ends: 579 [2021-10-24 10:21:29,850 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 141.5ms TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-10-24 10:21:29,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2021-10-24 10:21:29,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 543. [2021-10-24 10:21:29,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 533 states have (on average 1.275797373358349) internal successors, (680), 542 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:29,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 680 transitions. [2021-10-24 10:21:29,863 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 680 transitions. Word has length 37 [2021-10-24 10:21:29,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:29,863 INFO L470 AbstractCegarLoop]: Abstraction has 543 states and 680 transitions. [2021-10-24 10:21:29,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 10 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:29,864 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 680 transitions. [2021-10-24 10:21:29,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-24 10:21:29,865 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:29,865 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:29,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:30,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:30,080 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:30,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:30,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1515937655, now seen corresponding path program 1 times [2021-10-24 10:21:30,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:30,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827243289] [2021-10-24 10:21:30,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:30,084 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:30,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:30,086 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:30,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-24 10:21:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:30,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:30,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:30,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:30,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:30,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:30,897 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:30,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827243289] [2021-10-24 10:21:30,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827243289] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:30,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:30,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 10:21:30,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931655856] [2021-10-24 10:21:30,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:21:30,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:30,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:21:30,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:30,899 INFO L87 Difference]: Start difference. First operand 543 states and 680 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:31,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:31,015 INFO L93 Difference]: Finished difference Result 570 states and 708 transitions. [2021-10-24 10:21:31,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:21:31,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-24 10:21:31,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:31,020 INFO L225 Difference]: With dead ends: 570 [2021-10-24 10:21:31,020 INFO L226 Difference]: Without dead ends: 553 [2021-10-24 10:21:31,020 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 79.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-24 10:21:31,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-10-24 10:21:31,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 540. [2021-10-24 10:21:31,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 530 states have (on average 1.271698113207547) internal successors, (674), 539 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:31,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 674 transitions. [2021-10-24 10:21:31,032 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 674 transitions. Word has length 37 [2021-10-24 10:21:31,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:31,033 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 674 transitions. [2021-10-24 10:21:31,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 674 transitions. [2021-10-24 10:21:31,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-24 10:21:31,034 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:31,034 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:31,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:31,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:31,235 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:31,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:31,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1653529071, now seen corresponding path program 1 times [2021-10-24 10:21:31,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:31,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1752674457] [2021-10-24 10:21:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:31,237 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:31,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:31,238 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:31,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-24 10:21:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:31,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:31,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:31,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:31,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:31,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:31,986 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:31,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1752674457] [2021-10-24 10:21:31,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1752674457] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:31,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:31,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 10:21:31,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098784829] [2021-10-24 10:21:31,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:21:31,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:31,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:21:31,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:21:31,988 INFO L87 Difference]: Start difference. First operand 540 states and 674 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:32,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:32,035 INFO L93 Difference]: Finished difference Result 547 states and 678 transitions. [2021-10-24 10:21:32,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:21:32,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-24 10:21:32,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:32,041 INFO L225 Difference]: With dead ends: 547 [2021-10-24 10:21:32,042 INFO L226 Difference]: Without dead ends: 533 [2021-10-24 10:21:32,044 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:21:32,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2021-10-24 10:21:32,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 523. [2021-10-24 10:21:32,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 513 states have (on average 1.2729044834307992) internal successors, (653), 522 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:32,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 653 transitions. [2021-10-24 10:21:32,059 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 653 transitions. Word has length 39 [2021-10-24 10:21:32,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:32,059 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 653 transitions. [2021-10-24 10:21:32,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:32,060 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 653 transitions. [2021-10-24 10:21:32,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-24 10:21:32,061 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:32,061 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:32,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:32,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:32,277 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:32,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:32,278 INFO L82 PathProgramCache]: Analyzing trace with hash 2040251899, now seen corresponding path program 1 times [2021-10-24 10:21:32,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:32,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515800465] [2021-10-24 10:21:32,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:32,278 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:32,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:32,280 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:32,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-24 10:21:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:32,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:21:32,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:32,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:32,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:33,050 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:33,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515800465] [2021-10-24 10:21:33,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515800465] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:33,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:33,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 10:21:33,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703761064] [2021-10-24 10:21:33,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:21:33,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:33,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:21:33,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:21:33,052 INFO L87 Difference]: Start difference. First operand 523 states and 653 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:33,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:33,075 INFO L93 Difference]: Finished difference Result 523 states and 649 transitions. [2021-10-24 10:21:33,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:21:33,076 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-24 10:21:33,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:33,078 INFO L225 Difference]: With dead ends: 523 [2021-10-24 10:21:33,078 INFO L226 Difference]: Without dead ends: 523 [2021-10-24 10:21:33,078 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:21:33,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2021-10-24 10:21:33,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 509. [2021-10-24 10:21:33,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 499 states have (on average 1.2725450901803608) internal successors, (635), 508 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:33,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 635 transitions. [2021-10-24 10:21:33,089 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 635 transitions. Word has length 39 [2021-10-24 10:21:33,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:33,089 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 635 transitions. [2021-10-24 10:21:33,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:33,090 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 635 transitions. [2021-10-24 10:21:33,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-24 10:21:33,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:33,091 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:33,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:33,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:33,305 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:33,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:33,306 INFO L82 PathProgramCache]: Analyzing trace with hash -2061375645, now seen corresponding path program 1 times [2021-10-24 10:21:33,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:33,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537564798] [2021-10-24 10:21:33,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:33,307 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:33,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:33,308 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:33,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-24 10:21:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:33,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:21:33,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:34,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:34,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:34,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:34,262 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:34,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [537564798] [2021-10-24 10:21:34,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [537564798] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:34,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:34,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2021-10-24 10:21:34,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281101727] [2021-10-24 10:21:34,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-24 10:21:34,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:34,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-24 10:21:34,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-24 10:21:34,263 INFO L87 Difference]: Start difference. First operand 509 states and 635 transitions. Second operand has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:34,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:34,707 INFO L93 Difference]: Finished difference Result 774 states and 944 transitions. [2021-10-24 10:21:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-24 10:21:34,707 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-24 10:21:34,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:34,710 INFO L225 Difference]: With dead ends: 774 [2021-10-24 10:21:34,711 INFO L226 Difference]: Without dead ends: 737 [2021-10-24 10:21:34,711 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 190.3ms TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-10-24 10:21:34,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-10-24 10:21:34,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 495. [2021-10-24 10:21:34,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 485 states have (on average 1.2742268041237113) internal successors, (618), 494 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 618 transitions. [2021-10-24 10:21:34,722 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 618 transitions. Word has length 39 [2021-10-24 10:21:34,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:34,722 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 618 transitions. [2021-10-24 10:21:34,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.909090909090909) internal successors, (54), 11 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 618 transitions. [2021-10-24 10:21:34,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-24 10:21:34,724 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:34,724 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:34,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:34,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:34,940 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:34,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:34,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1283627962, now seen corresponding path program 1 times [2021-10-24 10:21:34,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:34,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757683385] [2021-10-24 10:21:34,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:34,941 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:34,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:34,943 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:34,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-24 10:21:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:35,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:35,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:35,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:35,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:35,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:35,826 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:35,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757683385] [2021-10-24 10:21:35,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757683385] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:35,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:35,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:21:35,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378641495] [2021-10-24 10:21:35,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:21:35,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:35,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:21:35,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:21:35,828 INFO L87 Difference]: Start difference. First operand 495 states and 618 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:35,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:35,996 INFO L93 Difference]: Finished difference Result 806 states and 979 transitions. [2021-10-24 10:21:35,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:21:35,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-24 10:21:35,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:36,002 INFO L225 Difference]: With dead ends: 806 [2021-10-24 10:21:36,003 INFO L226 Difference]: Without dead ends: 806 [2021-10-24 10:21:36,005 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:21:36,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2021-10-24 10:21:36,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 495. [2021-10-24 10:21:36,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 485 states have (on average 1.2742268041237113) internal successors, (618), 494 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:36,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 618 transitions. [2021-10-24 10:21:36,020 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 618 transitions. Word has length 39 [2021-10-24 10:21:36,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:36,021 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 618 transitions. [2021-10-24 10:21:36,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:36,021 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 618 transitions. [2021-10-24 10:21:36,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-24 10:21:36,023 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:36,023 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:36,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:36,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:36,240 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:36,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:36,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1612268538, now seen corresponding path program 1 times [2021-10-24 10:21:36,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:36,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028170648] [2021-10-24 10:21:36,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:36,241 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:36,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:36,242 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:36,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-24 10:21:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:36,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:36,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:36,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:36,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:37,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:37,050 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:37,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028170648] [2021-10-24 10:21:37,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028170648] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:37,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:37,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:21:37,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676460904] [2021-10-24 10:21:37,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:21:37,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:37,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:21:37,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:37,052 INFO L87 Difference]: Start difference. First operand 495 states and 618 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:37,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:37,085 INFO L93 Difference]: Finished difference Result 556 states and 691 transitions. [2021-10-24 10:21:37,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:21:37,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-10-24 10:21:37,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:37,088 INFO L225 Difference]: With dead ends: 556 [2021-10-24 10:21:37,088 INFO L226 Difference]: Without dead ends: 556 [2021-10-24 10:21:37,089 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:37,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2021-10-24 10:21:37,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 483. [2021-10-24 10:21:37,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 476 states have (on average 1.2605042016806722) internal successors, (600), 482 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:37,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 600 transitions. [2021-10-24 10:21:37,097 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 600 transitions. Word has length 39 [2021-10-24 10:21:37,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:37,098 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 600 transitions. [2021-10-24 10:21:37,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:37,098 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 600 transitions. [2021-10-24 10:21:37,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-24 10:21:37,100 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:37,100 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:37,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:37,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:37,317 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:37,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:37,317 INFO L82 PathProgramCache]: Analyzing trace with hash 160458813, now seen corresponding path program 1 times [2021-10-24 10:21:37,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:37,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138090818] [2021-10-24 10:21:37,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:37,318 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:37,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:37,318 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:37,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-24 10:21:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:37,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:21:37,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:38,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:38,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:38,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:38,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:38,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138090818] [2021-10-24 10:21:38,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138090818] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:38,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:38,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 10:21:38,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870034211] [2021-10-24 10:21:38,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:21:38,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:38,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:21:38,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:21:38,191 INFO L87 Difference]: Start difference. First operand 483 states and 600 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:38,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:38,362 INFO L93 Difference]: Finished difference Result 659 states and 794 transitions. [2021-10-24 10:21:38,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:21:38,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-10-24 10:21:38,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:38,366 INFO L225 Difference]: With dead ends: 659 [2021-10-24 10:21:38,366 INFO L226 Difference]: Without dead ends: 659 [2021-10-24 10:21:38,366 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:21:38,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2021-10-24 10:21:38,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 483. [2021-10-24 10:21:38,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 476 states have (on average 1.2521008403361344) internal successors, (596), 482 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:38,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 596 transitions. [2021-10-24 10:21:38,379 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 596 transitions. Word has length 41 [2021-10-24 10:21:38,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:38,379 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 596 transitions. [2021-10-24 10:21:38,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:38,380 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 596 transitions. [2021-10-24 10:21:38,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-24 10:21:38,382 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:38,382 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:38,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2021-10-24 10:21:38,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:38,598 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:38,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:38,599 INFO L82 PathProgramCache]: Analyzing trace with hash -693628121, now seen corresponding path program 1 times [2021-10-24 10:21:38,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:38,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317025942] [2021-10-24 10:21:38,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:38,600 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:38,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:38,605 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:38,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-24 10:21:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:39,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:21:39,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:39,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:39,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:39,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:39,491 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:39,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317025942] [2021-10-24 10:21:39,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317025942] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:39,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:39,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:21:39,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494466143] [2021-10-24 10:21:39,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:21:39,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:39,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:21:39,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:21:39,493 INFO L87 Difference]: Start difference. First operand 483 states and 596 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:39,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:39,547 INFO L93 Difference]: Finished difference Result 582 states and 706 transitions. [2021-10-24 10:21:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:21:39,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-10-24 10:21:39,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:39,551 INFO L225 Difference]: With dead ends: 582 [2021-10-24 10:21:39,551 INFO L226 Difference]: Without dead ends: 579 [2021-10-24 10:21:39,552 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.2ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:39,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2021-10-24 10:21:39,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 484. [2021-10-24 10:21:39,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 477 states have (on average 1.249475890985325) internal successors, (596), 483 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 596 transitions. [2021-10-24 10:21:39,561 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 596 transitions. Word has length 42 [2021-10-24 10:21:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:39,562 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 596 transitions. [2021-10-24 10:21:39,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 596 transitions. [2021-10-24 10:21:39,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-24 10:21:39,564 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:39,564 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:39,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:39,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:39,790 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:39,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:39,790 INFO L82 PathProgramCache]: Analyzing trace with hash -81749273, now seen corresponding path program 1 times [2021-10-24 10:21:39,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:39,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640964282] [2021-10-24 10:21:39,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:39,791 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:39,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:39,793 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:39,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-10-24 10:21:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:40,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-24 10:21:40,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:40,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:40,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:40,712 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:40,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640964282] [2021-10-24 10:21:40,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [640964282] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:40,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:40,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-24 10:21:40,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623177193] [2021-10-24 10:21:40,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-24 10:21:40,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:40,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-24 10:21:40,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-24 10:21:40,714 INFO L87 Difference]: Start difference. First operand 484 states and 596 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:40,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:40,859 INFO L93 Difference]: Finished difference Result 542 states and 654 transitions. [2021-10-24 10:21:40,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 10:21:40,859 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-10-24 10:21:40,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:40,862 INFO L225 Difference]: With dead ends: 542 [2021-10-24 10:21:40,862 INFO L226 Difference]: Without dead ends: 542 [2021-10-24 10:21:40,862 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 126.3ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-10-24 10:21:40,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2021-10-24 10:21:40,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 473. [2021-10-24 10:21:40,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 467 states have (on average 1.2441113490364026) internal successors, (581), 472 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:40,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 581 transitions. [2021-10-24 10:21:40,871 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 581 transitions. Word has length 42 [2021-10-24 10:21:40,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:40,871 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 581 transitions. [2021-10-24 10:21:40,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:40,872 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 581 transitions. [2021-10-24 10:21:40,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-24 10:21:40,873 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:40,873 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:40,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2021-10-24 10:21:41,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:41,087 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:41,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:41,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1579373080, now seen corresponding path program 1 times [2021-10-24 10:21:41,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:41,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [258227201] [2021-10-24 10:21:41,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:41,088 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:41,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:41,089 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:41,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-10-24 10:21:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:41,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:21:41,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:41,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:41,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:42,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:42,119 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:42,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [258227201] [2021-10-24 10:21:42,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [258227201] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:42,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:42,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-10-24 10:21:42,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249477993] [2021-10-24 10:21:42,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-24 10:21:42,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:42,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-24 10:21:42,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-24 10:21:42,122 INFO L87 Difference]: Start difference. First operand 473 states and 581 transitions. Second operand has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:42,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:42,755 INFO L93 Difference]: Finished difference Result 752 states and 906 transitions. [2021-10-24 10:21:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-24 10:21:42,756 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-24 10:21:42,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:42,760 INFO L225 Difference]: With dead ends: 752 [2021-10-24 10:21:42,760 INFO L226 Difference]: Without dead ends: 574 [2021-10-24 10:21:42,761 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 309.9ms TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2021-10-24 10:21:42,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-10-24 10:21:42,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 363. [2021-10-24 10:21:42,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 358 states have (on average 1.2513966480446927) internal successors, (448), 362 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:42,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 448 transitions. [2021-10-24 10:21:42,770 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 448 transitions. Word has length 44 [2021-10-24 10:21:42,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:42,770 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 448 transitions. [2021-10-24 10:21:42,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.769230769230769) internal successors, (62), 13 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:42,770 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 448 transitions. [2021-10-24 10:21:42,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-24 10:21:42,772 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:42,772 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:42,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:42,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:42,986 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:42,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:42,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1536215993, now seen corresponding path program 1 times [2021-10-24 10:21:42,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:42,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1562163158] [2021-10-24 10:21:42,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:42,987 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:42,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:42,990 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:43,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-10-24 10:21:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:43,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:21:43,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:43,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:43,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:43,897 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:43,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1562163158] [2021-10-24 10:21:43,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1562163158] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:43,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:43,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 10:21:43,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59596279] [2021-10-24 10:21:43,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:21:43,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:21:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:21:43,899 INFO L87 Difference]: Start difference. First operand 363 states and 448 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:44,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:44,014 INFO L93 Difference]: Finished difference Result 637 states and 790 transitions. [2021-10-24 10:21:44,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:21:44,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-10-24 10:21:44,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:44,018 INFO L225 Difference]: With dead ends: 637 [2021-10-24 10:21:44,018 INFO L226 Difference]: Without dead ends: 637 [2021-10-24 10:21:44,018 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:21:44,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-10-24 10:21:44,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 363. [2021-10-24 10:21:44,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 358 states have (on average 1.2486033519553073) internal successors, (447), 362 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 447 transitions. [2021-10-24 10:21:44,027 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 447 transitions. Word has length 44 [2021-10-24 10:21:44,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:44,027 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 447 transitions. [2021-10-24 10:21:44,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:44,028 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 447 transitions. [2021-10-24 10:21:44,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-24 10:21:44,029 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:44,029 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:44,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:44,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:44,246 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:44,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:44,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1966977471, now seen corresponding path program 1 times [2021-10-24 10:21:44,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:44,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505398984] [2021-10-24 10:21:44,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:44,247 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:44,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:44,248 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:44,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-10-24 10:21:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:44,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:21:44,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:45,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:45,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:45,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505398984] [2021-10-24 10:21:45,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [505398984] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:45,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:45,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-24 10:21:45,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833961857] [2021-10-24 10:21:45,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-24 10:21:45,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:45,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-24 10:21:45,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-10-24 10:21:45,271 INFO L87 Difference]: Start difference. First operand 363 states and 447 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:45,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:45,451 INFO L93 Difference]: Finished difference Result 416 states and 504 transitions. [2021-10-24 10:21:45,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 10:21:45,451 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2021-10-24 10:21:45,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:45,453 INFO L225 Difference]: With dead ends: 416 [2021-10-24 10:21:45,453 INFO L226 Difference]: Without dead ends: 366 [2021-10-24 10:21:45,453 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 189.6ms TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2021-10-24 10:21:45,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-10-24 10:21:45,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 323. [2021-10-24 10:21:45,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 318 states have (on average 1.2421383647798743) internal successors, (395), 322 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:45,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 395 transitions. [2021-10-24 10:21:45,460 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 395 transitions. Word has length 46 [2021-10-24 10:21:45,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:45,461 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 395 transitions. [2021-10-24 10:21:45,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:45,461 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 395 transitions. [2021-10-24 10:21:45,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-24 10:21:45,462 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:45,463 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:45,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:45,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:45,679 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:45,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:45,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1259536918, now seen corresponding path program 1 times [2021-10-24 10:21:45,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:45,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818744595] [2021-10-24 10:21:45,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:45,680 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:45,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:45,681 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:45,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-10-24 10:21:46,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:46,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:46,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:46,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:46,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:46,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:46,633 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:46,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818744595] [2021-10-24 10:21:46,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818744595] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:46,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:46,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:21:46,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248012584] [2021-10-24 10:21:46,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:21:46,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:46,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:21:46,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:46,636 INFO L87 Difference]: Start difference. First operand 323 states and 395 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:46,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:46,703 INFO L93 Difference]: Finished difference Result 285 states and 346 transitions. [2021-10-24 10:21:46,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:21:46,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-10-24 10:21:46,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:46,705 INFO L225 Difference]: With dead ends: 285 [2021-10-24 10:21:46,705 INFO L226 Difference]: Without dead ends: 285 [2021-10-24 10:21:46,705 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:21:46,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-10-24 10:21:46,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2021-10-24 10:21:46,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 282 states have (on average 1.2269503546099292) internal successors, (346), 284 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 346 transitions. [2021-10-24 10:21:46,710 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 346 transitions. Word has length 48 [2021-10-24 10:21:46,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:46,710 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 346 transitions. [2021-10-24 10:21:46,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:46,710 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 346 transitions. [2021-10-24 10:21:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-24 10:21:46,711 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:46,711 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:46,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:46,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:46,912 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:46,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:46,912 INFO L82 PathProgramCache]: Analyzing trace with hash -907841108, now seen corresponding path program 1 times [2021-10-24 10:21:46,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:46,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867064083] [2021-10-24 10:21:46,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:46,913 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:46,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:46,914 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:46,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-10-24 10:21:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:47,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-24 10:21:47,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:47,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:47,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:47,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:47,932 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:47,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867064083] [2021-10-24 10:21:47,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867064083] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:47,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:47,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-24 10:21:47,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849804622] [2021-10-24 10:21:47,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-24 10:21:47,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:47,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-24 10:21:47,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-24 10:21:47,935 INFO L87 Difference]: Start difference. First operand 285 states and 346 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:48,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:48,339 INFO L93 Difference]: Finished difference Result 506 states and 608 transitions. [2021-10-24 10:21:48,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-24 10:21:48,340 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-24 10:21:48,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:48,341 INFO L225 Difference]: With dead ends: 506 [2021-10-24 10:21:48,341 INFO L226 Difference]: Without dead ends: 490 [2021-10-24 10:21:48,341 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 236.0ms TimeCoverageRelationStatistics Valid=199, Invalid=503, Unknown=0, NotChecked=0, Total=702 [2021-10-24 10:21:48,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-10-24 10:21:48,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 279. [2021-10-24 10:21:48,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 276 states have (on average 1.2282608695652173) internal successors, (339), 278 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:48,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 339 transitions. [2021-10-24 10:21:48,346 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 339 transitions. Word has length 55 [2021-10-24 10:21:48,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:48,346 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 339 transitions. [2021-10-24 10:21:48,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:48,346 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 339 transitions. [2021-10-24 10:21:48,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-24 10:21:48,347 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:48,347 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:48,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:48,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:48,550 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:48,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:48,550 INFO L82 PathProgramCache]: Analyzing trace with hash -2021036311, now seen corresponding path program 1 times [2021-10-24 10:21:48,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:48,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892168143] [2021-10-24 10:21:48,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:48,551 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:48,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:48,552 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:48,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-10-24 10:21:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:21:49,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:21:49,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:21:49,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:49,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:21:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:21:49,550 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:21:49,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892168143] [2021-10-24 10:21:49,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892168143] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:21:49,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:21:49,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:21:49,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864193179] [2021-10-24 10:21:49,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:21:49,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:21:49,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:21:49,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:21:49,553 INFO L87 Difference]: Start difference. First operand 279 states and 339 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:49,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:21:49,571 INFO L93 Difference]: Finished difference Result 387 states and 472 transitions. [2021-10-24 10:21:49,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:21:49,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-10-24 10:21:49,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:21:49,572 INFO L225 Difference]: With dead ends: 387 [2021-10-24 10:21:49,573 INFO L226 Difference]: Without dead ends: 387 [2021-10-24 10:21:49,573 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:21:49,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-10-24 10:21:49,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 279. [2021-10-24 10:21:49,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 276 states have (on average 1.2173913043478262) internal successors, (336), 278 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:49,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 336 transitions. [2021-10-24 10:21:49,576 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 336 transitions. Word has length 57 [2021-10-24 10:21:49,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:21:49,576 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 336 transitions. [2021-10-24 10:21:49,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:21:49,577 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 336 transitions. [2021-10-24 10:21:49,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-24 10:21:49,578 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:21:49,578 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:21:49,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (43)] Ended with exit code 0 [2021-10-24 10:21:49,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:49,782 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 52 more)] === [2021-10-24 10:21:49,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:21:49,782 INFO L82 PathProgramCache]: Analyzing trace with hash -576201386, now seen corresponding path program 1 times [2021-10-24 10:21:49,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:21:49,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430693923] [2021-10-24 10:21:49,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:21:49,783 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:21:49,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:21:49,784 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:21:49,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-10-24 10:21:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:21:50,524 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:21:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:21:50,801 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:21:50,801 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:21:50,802 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,819 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,820 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,823 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,824 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,825 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,827 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,837 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,838 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,839 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,840 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,841 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,842 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,843 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,844 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,845 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,846 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK [2021-10-24 10:21:50,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-10-24 10:21:51,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:21:51,068 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:21:51,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:21:51 BoogieIcfgContainer [2021-10-24 10:21:51,261 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:21:51,261 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:21:51,261 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:21:51,262 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:21:51,262 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:21:03" (3/4) ... [2021-10-24 10:21:51,267 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 10:21:51,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:21:51,269 INFO L168 Benchmark]: Toolchain (without parser) took 51547.00 ms. Allocated memory was 67.1 MB in the beginning and 255.9 MB in the end (delta: 188.7 MB). Free memory was 46.9 MB in the beginning and 197.4 MB in the end (delta: -150.6 MB). Peak memory consumption was 37.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:51,270 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 67.1 MB. Free memory is still 47.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:21:51,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.22 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 46.6 MB in the beginning and 63.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:51,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 171.43 ms. Allocated memory is still 90.2 MB. Free memory was 63.2 MB in the beginning and 53.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:51,271 INFO L168 Benchmark]: Boogie Preprocessor took 193.02 ms. Allocated memory is still 90.2 MB. Free memory was 53.9 MB in the beginning and 63.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:51,272 INFO L168 Benchmark]: RCFGBuilder took 2236.15 ms. Allocated memory was 90.2 MB in the beginning and 144.7 MB in the end (delta: 54.5 MB). Free memory was 63.1 MB in the beginning and 103.4 MB in the end (delta: -40.3 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:51,272 INFO L168 Benchmark]: TraceAbstraction took 48211.72 ms. Allocated memory was 144.7 MB in the beginning and 255.9 MB in the end (delta: 111.1 MB). Free memory was 102.7 MB in the beginning and 197.4 MB in the end (delta: -94.7 MB). Peak memory consumption was 144.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:21:51,274 INFO L168 Benchmark]: Witness Printer took 5.80 ms. Allocated memory is still 255.9 MB. Free memory is still 197.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:21:51,277 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 67.1 MB. Free memory is still 47.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 719.22 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 46.6 MB in the beginning and 63.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 171.43 ms. Allocated memory is still 90.2 MB. Free memory was 63.2 MB in the beginning and 53.9 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 193.02 ms. Allocated memory is still 90.2 MB. Free memory was 53.9 MB in the beginning and 63.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2236.15 ms. Allocated memory was 90.2 MB in the beginning and 144.7 MB in the end (delta: 54.5 MB). Free memory was 63.1 MB in the beginning and 103.4 MB in the end (delta: -40.3 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 48211.72 ms. Allocated memory was 144.7 MB in the beginning and 255.9 MB in the end (delta: 111.1 MB). Free memory was 102.7 MB in the beginning and 197.4 MB in the end (delta: -94.7 MB). Peak memory consumption was 144.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.80 ms. Allocated memory is still 255.9 MB. Free memory is still 197.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1627. Possible FailurePath: [L42] int FloppyThread ; [L43] int KernelMode ; [L44] int Suspended ; [L45] int Executive ; [L46] int DiskController ; [L47] int FloppyDiskPeripheral ; [L48] int FlConfigCallBack ; [L49] int MaximumInterfaceType ; [L50] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L51] int myStatus ; [L52] int s ; [L53] int UNLOADED ; [L54] int NP ; [L55] int DC ; [L56] int SKIP1 ; [L57] int SKIP2 ; [L58] int MPR1 ; [L59] int MPR3 ; [L60] int IPC ; [L61] int pended ; [L62] int compRegistered ; [L63] int lowerDriverReturn ; [L64] int setEventCalled ; [L65] int customIrp ; [L88] int PagingReferenceCount = 0; [L89] int PagingMutex = 0; VAL [compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L668] int status ; [L669] int irp = __VERIFIER_nondet_int() ; [L670] int pirp ; [L671] int pirp__IoStatus__Status ; [L672] int irp_choice = __VERIFIER_nondet_int() ; [L673] int devobj = __VERIFIER_nondet_int() ; [L674] int __cil_tmp8 ; [L676] FloppyThread = 0 [L677] KernelMode = 0 [L678] Suspended = 0 [L679] Executive = 0 [L680] DiskController = 0 [L681] FloppyDiskPeripheral = 0 [L682] FlConfigCallBack = 0 [L683] MaximumInterfaceType = 0 [L684] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L685] myStatus = 0 [L686] s = 0 [L687] UNLOADED = 0 [L688] NP = 0 [L689] DC = 0 [L690] SKIP1 = 0 [L691] SKIP2 = 0 [L692] MPR1 = 0 [L693] MPR3 = 0 [L694] IPC = 0 [L695] pended = 0 [L696] compRegistered = 0 [L697] lowerDriverReturn = 0 [L698] setEventCalled = 0 [L699] customIrp = 0 [L703] status = 0 [L704] pirp = irp [L71] UNLOADED = 0 [L72] NP = 1 [L73] DC = 2 [L74] SKIP1 = 3 [L75] SKIP2 = 4 [L76] MPR1 = 5 [L77] MPR3 = 6 [L78] IPC = 7 [L79] s = UNLOADED [L80] pended = 0 [L81] compRegistered = 0 [L82] lowerDriverReturn = 0 [L83] setEventCalled = 0 [L84] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L707] COND TRUE status >= 0 [L708] s = NP [L709] customIrp = 0 [L710] setEventCalled = customIrp [L711] lowerDriverReturn = setEventCalled [L712] compRegistered = lowerDriverReturn [L713] pended = compRegistered [L714] pirp__IoStatus__Status = 0 [L715] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L716] COND TRUE irp_choice == 0 [L717] pirp__IoStatus__Status = -1073741637 [L718] myStatus = -1073741637 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L658] s = NP [L659] pended = 0 [L660] compRegistered = 0 [L661] lowerDriverReturn = 0 [L662] setEventCalled = 0 [L663] customIrp = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L724] COND FALSE !(status < 0) [L728] int tmp_ndt_1; [L729] tmp_ndt_1 = __VERIFIER_nondet_int() [L730] COND FALSE !(tmp_ndt_1 == 0) [L733] int tmp_ndt_2; [L734] tmp_ndt_2 = __VERIFIER_nondet_int() [L735] COND FALSE !(tmp_ndt_2 == 1) [L738] int tmp_ndt_3; [L739] tmp_ndt_3 = __VERIFIER_nondet_int() [L740] COND FALSE !(tmp_ndt_3 == 2) [L743] int tmp_ndt_4; [L744] tmp_ndt_4 = __VERIFIER_nondet_int() [L745] COND TRUE tmp_ndt_4 == 3 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L161] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L162] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L163] int Irp__IoStatus__Information ; [L164] int Irp__IoStatus__Status ; [L165] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L166] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L167] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L168] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L169] int disketteExtension__HoldNewRequests ; [L170] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L171] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L172] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L173] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L174] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L175] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L176] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L177] int irpSp ; [L178] int disketteExtension ; [L179] int ntStatus ; [L180] int doneEvent = __VERIFIER_nondet_int() ; [L181] int irpSp___0 ; [L182] int nextIrpSp ; [L183] int nextIrpSp__Control ; [L184] int irpSp___1 ; [L185] int irpSp__Context ; [L186] int irpSp__Control ; [L187] long __cil_tmp29 ; [L188] long __cil_tmp30 ; [L191] ntStatus = 0 [L192] PagingReferenceCount ++ VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L193] COND TRUE PagingReferenceCount == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L196] disketteExtension = DeviceObject__DeviceExtension [L197] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L198] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L207] COND FALSE !(irpSp__MinorFunction == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L210] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L236] COND TRUE irpSp__MinorFunction == 5 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L239] COND FALSE !(! disketteExtension__IsStarted) [L255] disketteExtension__HoldNewRequests = 1 [L98] int status ; [L99] int threadHandle = __VERIFIER_nondet_int() ; [L100] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L101] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L102] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L103] int Irp__IoStatus__Status ; [L104] int Irp__IoStatus__Information ; [L105] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L106] int ObjAttributes = __VERIFIER_nondet_int() ; [L107] int __cil_tmp12 ; [L108] int __cil_tmp13 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L111] COND FALSE !(DisketteExtension__PoweringDown == 1) [L117] DisketteExtension__ThreadReferenceCount ++ VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L118] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L150] COND TRUE pended == 0 [L151] pended = 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L157] return (259); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L256] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L259] __cil_tmp29 = (long )ntStatus VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L260] COND TRUE __cil_tmp29 == 259L [L1066] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1075] COND FALSE !(customIrp == 1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1079] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1086] int tmp_ndt_12; [L1087] tmp_ndt_12 = __VERIFIER_nondet_int() [L1088] COND TRUE tmp_ndt_12 == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1094] return (0); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L265] COND TRUE disketteExtension__FloppyThread != 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L268] disketteExtension__FloppyThread = 0 [L269] Irp__IoStatus__Status = 0 [L270] myStatus = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L271] COND TRUE s == NP [L272] s = SKIP1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L279] Irp__CurrentLocation ++ [L280] Irp__Tail__Overlay__CurrentStackLocation ++ [L968] int returnVal2 ; [L969] int compRetStatus1 ; [L970] int lcontext = __VERIFIER_nondet_int() ; [L971] unsigned long __cil_tmp7 ; VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L974] COND FALSE !(\read(compRegistered)) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L987] int tmp_ndt_10; [L988] tmp_ndt_10 = __VERIFIER_nondet_int() [L989] COND TRUE tmp_ndt_10 == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1000] returnVal2 = 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1013] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1017] COND FALSE !(s == MPR1) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1026] COND TRUE s == SKIP1 [L1027] s = SKIP2 [L1028] lowerDriverReturn = returnVal2 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1036] return (returnVal2); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L281] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L427] PagingReferenceCount -- VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L428] COND TRUE PagingReferenceCount == 0 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L431] return (ntStatus); VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L767] status = FloppyPnp(devobj, pirp) [L780] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L781] COND FALSE !(s == NP) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L788] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L789] COND FALSE !(s == MPR3) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L796] COND TRUE s != UNLOADED VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L797] COND TRUE status != -1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L798] COND FALSE !(s != SKIP2) VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L812] COND TRUE pended == 1 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L813] COND TRUE status != 259 VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1627] reach_error() VAL [compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1627]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 667]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 573 locations, 55 error locations. Started 1 CEGAR loops. OverallTime: 47931.9ms, OverallIterations: 43, TraceHistogramMax: 1, EmptinessCheckTime: 86.7ms, AutomataDifference: 8414.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 26.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 23395 SDtfs, 26973 SDslu, 54166 SDs, 0 SdLazy, 4765 SolverSat, 925 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4777.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2725 GetRequests, 2442 SyntacticMatches, 0 SemanticMatches, 283 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 2367.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=800occurred in iteration=8, InterpolantAutomatonStates: 263, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 794.7ms AutomataMinimizationTime, 42 MinimizatonAttempts, 3237 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 936.5ms SsaConstructionTime, 2090.8ms SatisfiabilityAnalysisTime, 10113.8ms InterpolantComputationTime, 1405 NumberOfCodeBlocks, 1405 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 2610 ConstructedInterpolants, 0 QuantifiedInterpolants, 5577 SizeOfPredicates, 79 NumberOfNonLiveVariables, 6106 ConjunctsInSsa, 156 ConjunctsInUnsatCore, 84 InterpolantComputations, 84 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 could not prove your program: unable to determine feasibility of some traces [2021-10-24 10:21:51,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95ae86b4-b464-4f2e-a5ed-c6b92ce145e3/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...