./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/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_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG --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_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/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_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG --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-b2eff8b [2021-10-29 05:21:21,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:21:21,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:21:21,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:21:21,621 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:21:21,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:21:21,628 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:21:21,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:21:21,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:21:21,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:21:21,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:21:21,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:21:21,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:21:21,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:21:21,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:21:21,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:21:21,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:21:21,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:21:21,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:21:21,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:21:21,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:21:21,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:21:21,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:21:21,684 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:21:21,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:21:21,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:21:21,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:21:21,699 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:21:21,699 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:21:21,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:21:21,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:21:21,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:21:21,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:21:21,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:21:21,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:21:21,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:21:21,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:21:21,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:21:21,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:21:21,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:21:21,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:21:21,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 05:21:21,767 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:21:21,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:21:21,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:21:21,770 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:21:21,770 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:21:21,770 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:21:21,771 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:21:21,771 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:21:21,771 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:21:21,772 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:21:21,773 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:21:21,773 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:21:21,773 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:21:21,774 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:21:21,774 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:21:21,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 05:21:21,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 05:21:21,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:21:21,776 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:21:21,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:21:21,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:21:21,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:21:21,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:21:21,778 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 05:21:21,778 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 05:21:21,778 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 05:21:21,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:21:21,780 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:21:21,781 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:21:21,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:21:21,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:21:21,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:21:21,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:21:21,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:21:21,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:21:21,783 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:21:21,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:21:21,783 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:21:21,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:21:21,784 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_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 [2021-10-29 05:21:22,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:21:22,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:21:22,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:21:22,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:21:22,209 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:21:22,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-10-29 05:21:22,288 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/data/f71da6bea/cc36eccdb1fa435d8237f1fc74ddb9f6/FLAG1f6b0182c [2021-10-29 05:21:22,987 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:21:22,987 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-10-29 05:21:23,015 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/data/f71da6bea/cc36eccdb1fa435d8237f1fc74ddb9f6/FLAG1f6b0182c [2021-10-29 05:21:23,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/data/f71da6bea/cc36eccdb1fa435d8237f1fc74ddb9f6 [2021-10-29 05:21:23,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:21:23,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:21:23,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:21:23,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:21:23,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:21:23,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:21:23" (1/1) ... [2021-10-29 05:21:23,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1738e796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:23, skipping insertion in model container [2021-10-29 05:21:23,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:21:23" (1/1) ... [2021-10-29 05:21:23,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:21:23,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:21:23,832 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_01e2d72c-9982-4757-b535-a1a6684cff3b/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-10-29 05:21:23,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:21:23,845 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:21:23,964 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_01e2d72c-9982-4757-b535-a1a6684cff3b/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-10-29 05:21:23,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:21:24,006 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:21:24,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24 WrapperNode [2021-10-29 05:21:24,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:21:24,008 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:21:24,008 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:21:24,009 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:21:24,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24" (1/1) ... [2021-10-29 05:21:24,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24" (1/1) ... [2021-10-29 05:21:24,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:21:24,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:21:24,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:21:24,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:21:24,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24" (1/1) ... [2021-10-29 05:21:24,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24" (1/1) ... [2021-10-29 05:21:24,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24" (1/1) ... [2021-10-29 05:21:24,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24" (1/1) ... [2021-10-29 05:21:24,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24" (1/1) ... [2021-10-29 05:21:24,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24" (1/1) ... [2021-10-29 05:21:24,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24" (1/1) ... [2021-10-29 05:21:24,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:21:24,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:21:24,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:21:24,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:21:24,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24" (1/1) ... [2021-10-29 05:21:24,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:21:24,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:21:24,423 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:21:24,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:21:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:21:24,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:21:24,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:21:24,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:21:24,839 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,865 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,874 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,879 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,885 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,886 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,893 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,906 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,909 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,915 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,916 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,918 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,921 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,926 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,928 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,929 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,931 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,933 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,934 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,934 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,936 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,939 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,942 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,945 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,947 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,949 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,952 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,953 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,954 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:24,957 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:26,212 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##658: assume !false; [2021-10-29 05:21:26,212 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##657: assume false; [2021-10-29 05:21:26,212 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##665: assume !false; [2021-10-29 05:21:26,213 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##664: assume false; [2021-10-29 05:21:26,213 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##683: assume false; [2021-10-29 05:21:26,213 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##684: assume !false; [2021-10-29 05:21:26,213 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##609: assume false; [2021-10-29 05:21:26,213 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##610: assume !false; [2021-10-29 05:21:26,213 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##639: assume false; [2021-10-29 05:21:26,214 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##640: assume !false; [2021-10-29 05:21:26,214 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-10-29 05:21:26,214 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-10-29 05:21:26,214 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2021-10-29 05:21:26,214 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2021-10-29 05:21:26,215 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume !false; [2021-10-29 05:21:26,215 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##284: assume false; [2021-10-29 05:21:26,215 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##229: assume !false; [2021-10-29 05:21:26,215 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume false; [2021-10-29 05:21:26,215 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2021-10-29 05:21:26,216 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2021-10-29 05:21:26,216 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##369: assume !false; [2021-10-29 05:21:26,216 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2021-10-29 05:21:26,216 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2021-10-29 05:21:26,216 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2021-10-29 05:21:26,217 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2021-10-29 05:21:26,217 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##357: assume false; [2021-10-29 05:21:26,217 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##358: assume !false; [2021-10-29 05:21:26,217 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##368: assume false; [2021-10-29 05:21:26,217 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume !false; [2021-10-29 05:21:26,217 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##403: assume false; [2021-10-29 05:21:26,218 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##427: assume !false; [2021-10-29 05:21:26,218 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##426: assume false; [2021-10-29 05:21:26,218 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume !false; [2021-10-29 05:21:26,218 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume false; [2021-10-29 05:21:26,218 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##439: assume false; [2021-10-29 05:21:26,219 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##440: assume !false; [2021-10-29 05:21:26,219 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2021-10-29 05:21:26,219 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2021-10-29 05:21:26,219 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##485: assume !false; [2021-10-29 05:21:26,219 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##484: assume false; [2021-10-29 05:21:26,220 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##524: assume !false; [2021-10-29 05:21:26,220 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##523: assume false; [2021-10-29 05:21:26,220 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##558: assume !false; [2021-10-29 05:21:26,220 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##557: assume false; [2021-10-29 05:21:26,220 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume !false; [2021-10-29 05:21:26,221 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##186: assume false; [2021-10-29 05:21:26,221 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume !false; [2021-10-29 05:21:26,221 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume false; [2021-10-29 05:21:26,221 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume false; [2021-10-29 05:21:26,221 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##145: assume !false; [2021-10-29 05:21:26,222 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-10-29 05:21:26,222 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-10-29 05:21:26,222 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2021-10-29 05:21:26,222 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2021-10-29 05:21:26,222 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2021-10-29 05:21:26,222 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2021-10-29 05:21:26,223 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##588: assume !false; [2021-10-29 05:21:26,223 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##587: assume false; [2021-10-29 05:21:26,223 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2021-10-29 05:21:26,223 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2021-10-29 05:21:27,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:21:27,509 INFO L299 CfgBuilder]: Removed 277 assume(true) statements. [2021-10-29 05:21:27,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:21:27 BoogieIcfgContainer [2021-10-29 05:21:27,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:21:27,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:21:27,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:21:27,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:21:27,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:21:23" (1/3) ... [2021-10-29 05:21:27,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482abd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:21:27, skipping insertion in model container [2021-10-29 05:21:27,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:24" (2/3) ... [2021-10-29 05:21:27,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482abd46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:21:27, skipping insertion in model container [2021-10-29 05:21:27,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:21:27" (3/3) ... [2021-10-29 05:21:27,522 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2021-10-29 05:21:27,528 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:21:27,529 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2021-10-29 05:21:27,580 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:21:27,596 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 [2021-10-29 05:21:27,597 INFO L340 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2021-10-29 05:21:27,638 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) [2021-10-29 05:21:27,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 05:21:27,644 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:27,645 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 05:21:27,646 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)] === [2021-10-29 05:21:27,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:27,652 INFO L85 PathProgramCache]: Analyzing trace with hash 67194804, now seen corresponding path program 1 times [2021-10-29 05:21:27,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:27,665 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046708250] [2021-10-29 05:21:27,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:27,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:27,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:27,949 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:27,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046708250] [2021-10-29 05:21:27,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046708250] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:27,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:27,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:21:27,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417176367] [2021-10-29 05:21:27,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:27,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:27,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:27,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:27,995 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) [2021-10-29 05:21:28,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:28,130 INFO L93 Difference]: Finished difference Result 376 states and 506 transitions. [2021-10-29 05:21:28,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:28,132 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 [2021-10-29 05:21:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:28,165 INFO L225 Difference]: With dead ends: 376 [2021-10-29 05:21:28,165 INFO L226 Difference]: Without dead ends: 375 [2021-10-29 05:21:28,167 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:28,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-10-29 05:21:28,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 360. [2021-10-29 05:21:28,240 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) [2021-10-29 05:21:28,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 485 transitions. [2021-10-29 05:21:28,248 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 485 transitions. Word has length 4 [2021-10-29 05:21:28,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:28,251 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 485 transitions. [2021-10-29 05:21:28,252 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) [2021-10-29 05:21:28,252 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 485 transitions. [2021-10-29 05:21:28,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 05:21:28,253 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:28,253 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-29 05:21:28,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:21:28,254 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)] === [2021-10-29 05:21:28,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:28,255 INFO L85 PathProgramCache]: Analyzing trace with hash 149838055, now seen corresponding path program 1 times [2021-10-29 05:21:28,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:28,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060441658] [2021-10-29 05:21:28,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:28,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:28,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:28,318 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:28,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060441658] [2021-10-29 05:21:28,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060441658] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:28,318 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:28,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:28,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704318004] [2021-10-29 05:21:28,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:28,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:28,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:28,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:28,322 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) [2021-10-29 05:21:28,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:28,566 INFO L93 Difference]: Finished difference Result 378 states and 519 transitions. [2021-10-29 05:21:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:28,566 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 [2021-10-29 05:21:28,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:28,570 INFO L225 Difference]: With dead ends: 378 [2021-10-29 05:21:28,570 INFO L226 Difference]: Without dead ends: 378 [2021-10-29 05:21:28,572 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:28,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-10-29 05:21:28,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 355. [2021-10-29 05:21:28,607 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) [2021-10-29 05:21:28,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 489 transitions. [2021-10-29 05:21:28,611 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 489 transitions. Word has length 6 [2021-10-29 05:21:28,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:28,612 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 489 transitions. [2021-10-29 05:21:28,612 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) [2021-10-29 05:21:28,612 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 489 transitions. [2021-10-29 05:21:28,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:21:28,613 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:28,613 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:28,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:21:28,614 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)] === [2021-10-29 05:21:28,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:28,614 INFO L85 PathProgramCache]: Analyzing trace with hash 249462892, now seen corresponding path program 1 times [2021-10-29 05:21:28,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:28,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070256985] [2021-10-29 05:21:28,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:28,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:28,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:28,696 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:28,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070256985] [2021-10-29 05:21:28,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070256985] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:28,697 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:28,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 05:21:28,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938389797] [2021-10-29 05:21:28,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:28,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:28,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:28,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:28,699 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) [2021-10-29 05:21:28,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:28,705 INFO L93 Difference]: Finished difference Result 354 states and 488 transitions. [2021-10-29 05:21:28,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:28,706 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 [2021-10-29 05:21:28,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:28,708 INFO L225 Difference]: With dead ends: 354 [2021-10-29 05:21:28,708 INFO L226 Difference]: Without dead ends: 351 [2021-10-29 05:21:28,709 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:28,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-10-29 05:21:28,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 345. [2021-10-29 05:21:28,728 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) [2021-10-29 05:21:28,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 466 transitions. [2021-10-29 05:21:28,730 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 466 transitions. Word has length 8 [2021-10-29 05:21:28,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:28,730 INFO L470 AbstractCegarLoop]: Abstraction has 345 states and 466 transitions. [2021-10-29 05:21:28,731 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) [2021-10-29 05:21:28,731 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 466 transitions. [2021-10-29 05:21:28,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 05:21:28,732 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:28,732 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:28,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:21:28,732 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)] === [2021-10-29 05:21:28,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:28,733 INFO L85 PathProgramCache]: Analyzing trace with hash 2088182250, now seen corresponding path program 1 times [2021-10-29 05:21:28,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:28,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591024434] [2021-10-29 05:21:28,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:28,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:28,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:28,869 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:28,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591024434] [2021-10-29 05:21:28,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591024434] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:28,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:28,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:28,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792452318] [2021-10-29 05:21:28,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:28,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:28,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:28,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:28,872 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) [2021-10-29 05:21:28,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:28,935 INFO L93 Difference]: Finished difference Result 391 states and 522 transitions. [2021-10-29 05:21:28,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:28,936 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 [2021-10-29 05:21:28,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:28,939 INFO L225 Difference]: With dead ends: 391 [2021-10-29 05:21:28,939 INFO L226 Difference]: Without dead ends: 391 [2021-10-29 05:21:28,940 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:28,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2021-10-29 05:21:28,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 373. [2021-10-29 05:21:28,949 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) [2021-10-29 05:21:28,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 509 transitions. [2021-10-29 05:21:28,953 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 509 transitions. Word has length 11 [2021-10-29 05:21:28,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:28,953 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 509 transitions. [2021-10-29 05:21:28,953 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) [2021-10-29 05:21:28,954 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 509 transitions. [2021-10-29 05:21:28,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:21:28,955 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:28,955 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:28,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 05:21:28,956 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)] === [2021-10-29 05:21:28,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:28,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1062551036, now seen corresponding path program 1 times [2021-10-29 05:21:28,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:28,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599630489] [2021-10-29 05:21:28,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:28,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:29,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:29,050 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:29,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599630489] [2021-10-29 05:21:29,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599630489] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:29,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:29,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:29,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020603176] [2021-10-29 05:21:29,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:29,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:29,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:29,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:29,053 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) [2021-10-29 05:21:29,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:29,096 INFO L93 Difference]: Finished difference Result 435 states and 579 transitions. [2021-10-29 05:21:29,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:29,096 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 [2021-10-29 05:21:29,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:29,099 INFO L225 Difference]: With dead ends: 435 [2021-10-29 05:21:29,099 INFO L226 Difference]: Without dead ends: 435 [2021-10-29 05:21:29,100 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:29,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-10-29 05:21:29,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 351. [2021-10-29 05:21:29,109 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) [2021-10-29 05:21:29,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 475 transitions. [2021-10-29 05:21:29,112 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 475 transitions. Word has length 12 [2021-10-29 05:21:29,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:29,112 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 475 transitions. [2021-10-29 05:21:29,112 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) [2021-10-29 05:21:29,113 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 475 transitions. [2021-10-29 05:21:29,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 05:21:29,114 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:29,114 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:29,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 05:21:29,115 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)] === [2021-10-29 05:21:29,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1013278772, now seen corresponding path program 1 times [2021-10-29 05:21:29,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:29,116 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559114557] [2021-10-29 05:21:29,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:29,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:29,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:29,159 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:29,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559114557] [2021-10-29 05:21:29,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559114557] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:29,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:29,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:29,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119888359] [2021-10-29 05:21:29,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:29,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:29,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:29,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:29,164 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) [2021-10-29 05:21:29,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:29,326 INFO L93 Difference]: Finished difference Result 379 states and 509 transitions. [2021-10-29 05:21:29,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:29,327 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 [2021-10-29 05:21:29,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:29,329 INFO L225 Difference]: With dead ends: 379 [2021-10-29 05:21:29,330 INFO L226 Difference]: Without dead ends: 379 [2021-10-29 05:21:29,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:29,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-10-29 05:21:29,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 376. [2021-10-29 05:21:29,341 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) [2021-10-29 05:21:29,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 507 transitions. [2021-10-29 05:21:29,343 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 507 transitions. Word has length 14 [2021-10-29 05:21:29,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:29,344 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 507 transitions. [2021-10-29 05:21:29,344 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) [2021-10-29 05:21:29,344 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 507 transitions. [2021-10-29 05:21:29,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 05:21:29,346 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:29,347 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:29,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 05:21:29,351 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)] === [2021-10-29 05:21:29,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:29,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1364450634, now seen corresponding path program 1 times [2021-10-29 05:21:29,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:29,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627680232] [2021-10-29 05:21:29,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:29,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:29,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:29,452 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:29,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627680232] [2021-10-29 05:21:29,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627680232] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:29,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:29,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:29,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770135239] [2021-10-29 05:21:29,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:29,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:29,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:29,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:29,459 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) [2021-10-29 05:21:29,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:29,724 INFO L93 Difference]: Finished difference Result 379 states and 507 transitions. [2021-10-29 05:21:29,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:29,725 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 [2021-10-29 05:21:29,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:29,727 INFO L225 Difference]: With dead ends: 379 [2021-10-29 05:21:29,735 INFO L226 Difference]: Without dead ends: 379 [2021-10-29 05:21:29,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:29,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-10-29 05:21:29,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 376. [2021-10-29 05:21:29,758 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) [2021-10-29 05:21:29,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 505 transitions. [2021-10-29 05:21:29,760 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 505 transitions. Word has length 15 [2021-10-29 05:21:29,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:29,761 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 505 transitions. [2021-10-29 05:21:29,761 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) [2021-10-29 05:21:29,761 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 505 transitions. [2021-10-29 05:21:29,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 05:21:29,762 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:29,763 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:29,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 05:21:29,763 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)] === [2021-10-29 05:21:29,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:29,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1184665149, now seen corresponding path program 1 times [2021-10-29 05:21:29,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:29,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049144063] [2021-10-29 05:21:29,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:29,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:29,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:29,863 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:29,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049144063] [2021-10-29 05:21:29,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049144063] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:29,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:29,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:29,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756684663] [2021-10-29 05:21:29,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:29,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:29,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:29,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:29,866 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) [2021-10-29 05:21:30,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:30,068 INFO L93 Difference]: Finished difference Result 379 states and 505 transitions. [2021-10-29 05:21:30,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:30,068 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 [2021-10-29 05:21:30,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:30,071 INFO L225 Difference]: With dead ends: 379 [2021-10-29 05:21:30,071 INFO L226 Difference]: Without dead ends: 379 [2021-10-29 05:21:30,072 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:30,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-10-29 05:21:30,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 376. [2021-10-29 05:21:30,082 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) [2021-10-29 05:21:30,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 503 transitions. [2021-10-29 05:21:30,084 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 503 transitions. Word has length 16 [2021-10-29 05:21:30,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:30,085 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 503 transitions. [2021-10-29 05:21:30,085 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) [2021-10-29 05:21:30,085 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 503 transitions. [2021-10-29 05:21:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 05:21:30,091 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:30,091 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:30,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 05:21:30,092 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)] === [2021-10-29 05:21:30,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:30,092 INFO L85 PathProgramCache]: Analyzing trace with hash -758987480, now seen corresponding path program 1 times [2021-10-29 05:21:30,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:30,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531955242] [2021-10-29 05:21:30,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:30,096 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:30,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:30,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:30,175 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:30,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531955242] [2021-10-29 05:21:30,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531955242] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:30,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:30,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:30,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226186821] [2021-10-29 05:21:30,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:30,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:30,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:30,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:30,183 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) [2021-10-29 05:21:30,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:30,310 INFO L93 Difference]: Finished difference Result 360 states and 486 transitions. [2021-10-29 05:21:30,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:30,311 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 [2021-10-29 05:21:30,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:30,313 INFO L225 Difference]: With dead ends: 360 [2021-10-29 05:21:30,313 INFO L226 Difference]: Without dead ends: 360 [2021-10-29 05:21:30,314 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:30,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-29 05:21:30,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2021-10-29 05:21:30,322 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) [2021-10-29 05:21:30,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 486 transitions. [2021-10-29 05:21:30,324 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 486 transitions. Word has length 17 [2021-10-29 05:21:30,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:30,324 INFO L470 AbstractCegarLoop]: Abstraction has 360 states and 486 transitions. [2021-10-29 05:21:30,325 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) [2021-10-29 05:21:30,325 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 486 transitions. [2021-10-29 05:21:30,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 05:21:30,326 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:30,326 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:30,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 05:21:30,327 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)] === [2021-10-29 05:21:30,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:30,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1566128545, now seen corresponding path program 1 times [2021-10-29 05:21:30,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:30,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796744482] [2021-10-29 05:21:30,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:30,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:30,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:30,371 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:30,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796744482] [2021-10-29 05:21:30,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796744482] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:30,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:30,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:30,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629122965] [2021-10-29 05:21:30,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:30,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:30,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:30,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:30,374 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) [2021-10-29 05:21:30,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:30,393 INFO L93 Difference]: Finished difference Result 370 states and 495 transitions. [2021-10-29 05:21:30,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:30,394 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 [2021-10-29 05:21:30,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:30,397 INFO L225 Difference]: With dead ends: 370 [2021-10-29 05:21:30,397 INFO L226 Difference]: Without dead ends: 356 [2021-10-29 05:21:30,398 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:30,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-10-29 05:21:30,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2021-10-29 05:21:30,406 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) [2021-10-29 05:21:30,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 480 transitions. [2021-10-29 05:21:30,408 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 480 transitions. Word has length 17 [2021-10-29 05:21:30,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:30,409 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 480 transitions. [2021-10-29 05:21:30,409 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) [2021-10-29 05:21:30,409 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 480 transitions. [2021-10-29 05:21:30,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:21:30,410 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:30,410 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:30,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-29 05:21:30,411 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)] === [2021-10-29 05:21:30,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:30,412 INFO L85 PathProgramCache]: Analyzing trace with hash 39550031, now seen corresponding path program 1 times [2021-10-29 05:21:30,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:30,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26873892] [2021-10-29 05:21:30,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:30,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:30,466 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:30,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26873892] [2021-10-29 05:21:30,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26873892] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:30,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:30,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:21:30,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125978493] [2021-10-29 05:21:30,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:30,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:30,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:30,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:30,470 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) [2021-10-29 05:21:30,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:30,505 INFO L93 Difference]: Finished difference Result 407 states and 526 transitions. [2021-10-29 05:21:30,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:30,506 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 [2021-10-29 05:21:30,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:30,509 INFO L225 Difference]: With dead ends: 407 [2021-10-29 05:21:30,509 INFO L226 Difference]: Without dead ends: 407 [2021-10-29 05:21:30,509 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:30,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-10-29 05:21:30,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 343. [2021-10-29 05:21:30,518 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) [2021-10-29 05:21:30,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 460 transitions. [2021-10-29 05:21:30,520 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 460 transitions. Word has length 19 [2021-10-29 05:21:30,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:30,521 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 460 transitions. [2021-10-29 05:21:30,521 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) [2021-10-29 05:21:30,521 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 460 transitions. [2021-10-29 05:21:30,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 05:21:30,522 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:30,522 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:30,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-29 05:21:30,523 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)] === [2021-10-29 05:21:30,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:30,524 INFO L85 PathProgramCache]: Analyzing trace with hash -750080855, now seen corresponding path program 1 times [2021-10-29 05:21:30,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:30,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934069068] [2021-10-29 05:21:30,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:30,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:30,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:30,571 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:30,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934069068] [2021-10-29 05:21:30,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934069068] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:30,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:30,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:30,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145216638] [2021-10-29 05:21:30,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:30,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:30,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:30,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:30,574 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) [2021-10-29 05:21:30,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:30,679 INFO L93 Difference]: Finished difference Result 340 states and 456 transitions. [2021-10-29 05:21:30,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:30,680 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 [2021-10-29 05:21:30,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:30,682 INFO L225 Difference]: With dead ends: 340 [2021-10-29 05:21:30,682 INFO L226 Difference]: Without dead ends: 340 [2021-10-29 05:21:30,683 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:30,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-10-29 05:21:30,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2021-10-29 05:21:30,691 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) [2021-10-29 05:21:30,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 456 transitions. [2021-10-29 05:21:30,693 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 456 transitions. Word has length 20 [2021-10-29 05:21:30,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:30,693 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 456 transitions. [2021-10-29 05:21:30,694 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) [2021-10-29 05:21:30,694 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 456 transitions. [2021-10-29 05:21:30,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 05:21:30,695 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:30,695 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:30,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-29 05:21:30,696 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)] === [2021-10-29 05:21:30,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:30,696 INFO L85 PathProgramCache]: Analyzing trace with hash 1698001296, now seen corresponding path program 1 times [2021-10-29 05:21:30,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:30,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108394231] [2021-10-29 05:21:30,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:30,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:30,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:30,731 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:30,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108394231] [2021-10-29 05:21:30,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108394231] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:30,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:30,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:30,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338880901] [2021-10-29 05:21:30,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:30,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:30,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:30,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:30,734 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) [2021-10-29 05:21:30,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:30,761 INFO L93 Difference]: Finished difference Result 338 states and 442 transitions. [2021-10-29 05:21:30,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:30,762 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 [2021-10-29 05:21:30,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:30,764 INFO L225 Difference]: With dead ends: 338 [2021-10-29 05:21:30,764 INFO L226 Difference]: Without dead ends: 338 [2021-10-29 05:21:30,765 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:30,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-10-29 05:21:30,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 324. [2021-10-29 05:21:30,773 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) [2021-10-29 05:21:30,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 429 transitions. [2021-10-29 05:21:30,775 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 429 transitions. Word has length 21 [2021-10-29 05:21:30,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:30,776 INFO L470 AbstractCegarLoop]: Abstraction has 324 states and 429 transitions. [2021-10-29 05:21:30,776 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) [2021-10-29 05:21:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 429 transitions. [2021-10-29 05:21:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 05:21:30,777 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:30,778 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:30,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-29 05:21:30,778 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)] === [2021-10-29 05:21:30,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:30,779 INFO L85 PathProgramCache]: Analyzing trace with hash -879330402, now seen corresponding path program 1 times [2021-10-29 05:21:30,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:30,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329191768] [2021-10-29 05:21:30,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:30,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:30,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:30,814 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:30,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329191768] [2021-10-29 05:21:30,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329191768] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:30,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:30,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:30,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57883561] [2021-10-29 05:21:30,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:30,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:30,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:30,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:30,816 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) [2021-10-29 05:21:30,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:30,834 INFO L93 Difference]: Finished difference Result 326 states and 423 transitions. [2021-10-29 05:21:30,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:30,835 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 [2021-10-29 05:21:30,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:30,837 INFO L225 Difference]: With dead ends: 326 [2021-10-29 05:21:30,837 INFO L226 Difference]: Without dead ends: 320 [2021-10-29 05:21:30,837 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:30,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-10-29 05:21:30,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 317. [2021-10-29 05:21:30,844 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) [2021-10-29 05:21:30,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 414 transitions. [2021-10-29 05:21:30,846 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 414 transitions. Word has length 21 [2021-10-29 05:21:30,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:30,846 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 414 transitions. [2021-10-29 05:21:30,846 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) [2021-10-29 05:21:30,847 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 414 transitions. [2021-10-29 05:21:30,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:21:30,848 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:30,848 INFO L513 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] [2021-10-29 05:21:30,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-29 05:21:30,848 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)] === [2021-10-29 05:21:30,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:30,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1763482425, now seen corresponding path program 1 times [2021-10-29 05:21:30,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:30,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219616759] [2021-10-29 05:21:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:30,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:30,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:30,878 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:30,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219616759] [2021-10-29 05:21:30,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219616759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:30,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:30,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:30,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764905205] [2021-10-29 05:21:30,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:30,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:30,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:30,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:30,881 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) [2021-10-29 05:21:31,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:31,005 INFO L93 Difference]: Finished difference Result 360 states and 469 transitions. [2021-10-29 05:21:31,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:31,006 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 [2021-10-29 05:21:31,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:31,008 INFO L225 Difference]: With dead ends: 360 [2021-10-29 05:21:31,008 INFO L226 Difference]: Without dead ends: 360 [2021-10-29 05:21:31,008 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:31,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-10-29 05:21:31,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 325. [2021-10-29 05:21:31,015 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) [2021-10-29 05:21:31,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 426 transitions. [2021-10-29 05:21:31,017 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 426 transitions. Word has length 22 [2021-10-29 05:21:31,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:31,018 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 426 transitions. [2021-10-29 05:21:31,018 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) [2021-10-29 05:21:31,018 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 426 transitions. [2021-10-29 05:21:31,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:21:31,019 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:31,019 INFO L513 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] [2021-10-29 05:21:31,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-29 05:21:31,020 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)] === [2021-10-29 05:21:31,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:31,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1055563924, now seen corresponding path program 1 times [2021-10-29 05:21:31,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:31,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375571639] [2021-10-29 05:21:31,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:31,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:31,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:31,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:31,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375571639] [2021-10-29 05:21:31,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375571639] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:31,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:31,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:21:31,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180461297] [2021-10-29 05:21:31,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:31,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:31,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:31,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:31,061 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) [2021-10-29 05:21:31,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:31,087 INFO L93 Difference]: Finished difference Result 336 states and 436 transitions. [2021-10-29 05:21:31,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:31,088 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 [2021-10-29 05:21:31,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:31,090 INFO L225 Difference]: With dead ends: 336 [2021-10-29 05:21:31,090 INFO L226 Difference]: Without dead ends: 323 [2021-10-29 05:21:31,091 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:31,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-10-29 05:21:31,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-10-29 05:21:31,097 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) [2021-10-29 05:21:31,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 423 transitions. [2021-10-29 05:21:31,099 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 423 transitions. Word has length 22 [2021-10-29 05:21:31,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:31,099 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 423 transitions. [2021-10-29 05:21:31,099 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) [2021-10-29 05:21:31,100 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 423 transitions. [2021-10-29 05:21:31,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:21:31,100 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:31,101 INFO L513 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] [2021-10-29 05:21:31,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-29 05:21:31,101 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)] === [2021-10-29 05:21:31,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:31,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1000660230, now seen corresponding path program 1 times [2021-10-29 05:21:31,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:31,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816577639] [2021-10-29 05:21:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:31,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:31,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:31,144 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:31,145 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816577639] [2021-10-29 05:21:31,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816577639] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:31,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:31,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:21:31,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762604124] [2021-10-29 05:21:31,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:31,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:31,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:31,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:31,147 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) [2021-10-29 05:21:31,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:31,181 INFO L93 Difference]: Finished difference Result 340 states and 439 transitions. [2021-10-29 05:21:31,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:31,181 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 [2021-10-29 05:21:31,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:31,184 INFO L225 Difference]: With dead ends: 340 [2021-10-29 05:21:31,184 INFO L226 Difference]: Without dead ends: 340 [2021-10-29 05:21:31,184 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:31,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2021-10-29 05:21:31,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 325. [2021-10-29 05:21:31,191 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) [2021-10-29 05:21:31,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 425 transitions. [2021-10-29 05:21:31,192 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 425 transitions. Word has length 22 [2021-10-29 05:21:31,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:31,193 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 425 transitions. [2021-10-29 05:21:31,193 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) [2021-10-29 05:21:31,193 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 425 transitions. [2021-10-29 05:21:31,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:21:31,194 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:31,194 INFO L513 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] [2021-10-29 05:21:31,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-29 05:21:31,195 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)] === [2021-10-29 05:21:31,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:31,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2143934674, now seen corresponding path program 1 times [2021-10-29 05:21:31,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:31,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698444009] [2021-10-29 05:21:31,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:31,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:31,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:31,242 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:31,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698444009] [2021-10-29 05:21:31,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698444009] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:31,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:31,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:21:31,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73359015] [2021-10-29 05:21:31,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:31,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:31,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:31,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:31,244 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) [2021-10-29 05:21:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:31,276 INFO L93 Difference]: Finished difference Result 336 states and 435 transitions. [2021-10-29 05:21:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:31,277 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 [2021-10-29 05:21:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:31,279 INFO L225 Difference]: With dead ends: 336 [2021-10-29 05:21:31,279 INFO L226 Difference]: Without dead ends: 323 [2021-10-29 05:21:31,279 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:31,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-10-29 05:21:31,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-10-29 05:21:31,286 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) [2021-10-29 05:21:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 422 transitions. [2021-10-29 05:21:31,288 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 422 transitions. Word has length 22 [2021-10-29 05:21:31,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:31,288 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 422 transitions. [2021-10-29 05:21:31,289 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) [2021-10-29 05:21:31,289 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 422 transitions. [2021-10-29 05:21:31,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 05:21:31,290 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:31,290 INFO L513 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] [2021-10-29 05:21:31,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-29 05:21:31,290 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)] === [2021-10-29 05:21:31,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:31,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1174277606, now seen corresponding path program 1 times [2021-10-29 05:21:31,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:31,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232941094] [2021-10-29 05:21:31,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:31,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:31,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:31,326 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:31,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232941094] [2021-10-29 05:21:31,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232941094] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:31,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:31,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:31,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737213024] [2021-10-29 05:21:31,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:31,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:31,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:31,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:31,329 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) [2021-10-29 05:21:31,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:31,506 INFO L93 Difference]: Finished difference Result 338 states and 435 transitions. [2021-10-29 05:21:31,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:31,507 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 [2021-10-29 05:21:31,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:31,509 INFO L225 Difference]: With dead ends: 338 [2021-10-29 05:21:31,509 INFO L226 Difference]: Without dead ends: 338 [2021-10-29 05:21:31,509 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:31,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-10-29 05:21:31,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 318. [2021-10-29 05:21:31,516 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) [2021-10-29 05:21:31,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 414 transitions. [2021-10-29 05:21:31,518 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 414 transitions. Word has length 23 [2021-10-29 05:21:31,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:31,518 INFO L470 AbstractCegarLoop]: Abstraction has 318 states and 414 transitions. [2021-10-29 05:21:31,518 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) [2021-10-29 05:21:31,518 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 414 transitions. [2021-10-29 05:21:31,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 05:21:31,519 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:31,520 INFO L513 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] [2021-10-29 05:21:31,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-29 05:21:31,520 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)] === [2021-10-29 05:21:31,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:31,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1607438575, now seen corresponding path program 1 times [2021-10-29 05:21:31,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:31,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752445499] [2021-10-29 05:21:31,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:31,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:31,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:31,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:31,559 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:31,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752445499] [2021-10-29 05:21:31,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752445499] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:31,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:31,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:31,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381845166] [2021-10-29 05:21:31,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:31,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:31,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:31,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:31,562 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) [2021-10-29 05:21:31,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:31,583 INFO L93 Difference]: Finished difference Result 341 states and 436 transitions. [2021-10-29 05:21:31,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:31,583 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 [2021-10-29 05:21:31,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:31,585 INFO L225 Difference]: With dead ends: 341 [2021-10-29 05:21:31,586 INFO L226 Difference]: Without dead ends: 341 [2021-10-29 05:21:31,586 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:31,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-10-29 05:21:31,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 306. [2021-10-29 05:21:31,592 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) [2021-10-29 05:21:31,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 396 transitions. [2021-10-29 05:21:31,594 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 396 transitions. Word has length 23 [2021-10-29 05:21:31,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:31,594 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 396 transitions. [2021-10-29 05:21:31,594 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) [2021-10-29 05:21:31,595 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 396 transitions. [2021-10-29 05:21:31,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:21:31,596 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:31,596 INFO L513 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] [2021-10-29 05:21:31,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-29 05:21:31,596 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)] === [2021-10-29 05:21:31,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:31,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1753614420, now seen corresponding path program 1 times [2021-10-29 05:21:31,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:31,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789417306] [2021-10-29 05:21:31,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:31,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:31,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:31,754 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:31,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789417306] [2021-10-29 05:21:31,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789417306] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:31,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:31,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:31,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169131607] [2021-10-29 05:21:31,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:31,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:31,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:31,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:31,757 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) [2021-10-29 05:21:31,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:31,790 INFO L93 Difference]: Finished difference Result 308 states and 391 transitions. [2021-10-29 05:21:31,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:31,791 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 [2021-10-29 05:21:31,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:31,793 INFO L225 Difference]: With dead ends: 308 [2021-10-29 05:21:31,793 INFO L226 Difference]: Without dead ends: 308 [2021-10-29 05:21:31,793 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:31,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-10-29 05:21:31,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 294. [2021-10-29 05:21:31,799 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) [2021-10-29 05:21:31,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 378 transitions. [2021-10-29 05:21:31,801 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 378 transitions. Word has length 24 [2021-10-29 05:21:31,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:31,801 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 378 transitions. [2021-10-29 05:21:31,801 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) [2021-10-29 05:21:31,802 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 378 transitions. [2021-10-29 05:21:31,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:21:31,802 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:31,803 INFO L513 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] [2021-10-29 05:21:31,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-29 05:21:31,804 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)] === [2021-10-29 05:21:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:31,804 INFO L85 PathProgramCache]: Analyzing trace with hash -148859889, now seen corresponding path program 1 times [2021-10-29 05:21:31,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:31,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114089038] [2021-10-29 05:21:31,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:31,805 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:31,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:31,844 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:31,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114089038] [2021-10-29 05:21:31,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114089038] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:31,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:31,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:31,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448740606] [2021-10-29 05:21:31,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:31,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:31,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:31,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:31,846 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) [2021-10-29 05:21:31,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:31,969 INFO L93 Difference]: Finished difference Result 379 states and 478 transitions. [2021-10-29 05:21:31,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:31,969 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 [2021-10-29 05:21:31,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:31,972 INFO L225 Difference]: With dead ends: 379 [2021-10-29 05:21:31,972 INFO L226 Difference]: Without dead ends: 379 [2021-10-29 05:21:31,974 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:31,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-10-29 05:21:31,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 321. [2021-10-29 05:21:31,981 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) [2021-10-29 05:21:31,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 407 transitions. [2021-10-29 05:21:31,983 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 407 transitions. Word has length 24 [2021-10-29 05:21:31,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:31,984 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 407 transitions. [2021-10-29 05:21:31,985 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) [2021-10-29 05:21:31,985 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 407 transitions. [2021-10-29 05:21:31,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:21:31,986 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:31,986 INFO L513 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] [2021-10-29 05:21:31,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-29 05:21:31,987 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)] === [2021-10-29 05:21:31,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:31,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1595489776, now seen corresponding path program 1 times [2021-10-29 05:21:31,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:31,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944425228] [2021-10-29 05:21:31,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:31,988 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:32,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:32,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:32,054 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:32,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944425228] [2021-10-29 05:21:32,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944425228] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:32,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:32,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:32,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835620719] [2021-10-29 05:21:32,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:32,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:32,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:32,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:32,060 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) [2021-10-29 05:21:32,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:32,107 INFO L93 Difference]: Finished difference Result 332 states and 417 transitions. [2021-10-29 05:21:32,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:32,108 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 [2021-10-29 05:21:32,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:32,110 INFO L225 Difference]: With dead ends: 332 [2021-10-29 05:21:32,110 INFO L226 Difference]: Without dead ends: 317 [2021-10-29 05:21:32,111 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:21:32,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-10-29 05:21:32,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2021-10-29 05:21:32,117 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) [2021-10-29 05:21:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 402 transitions. [2021-10-29 05:21:32,118 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 402 transitions. Word has length 24 [2021-10-29 05:21:32,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:32,119 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 402 transitions. [2021-10-29 05:21:32,119 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) [2021-10-29 05:21:32,119 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 402 transitions. [2021-10-29 05:21:32,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 05:21:32,120 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:32,120 INFO L513 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] [2021-10-29 05:21:32,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-29 05:21:32,121 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)] === [2021-10-29 05:21:32,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:32,121 INFO L85 PathProgramCache]: Analyzing trace with hash -506430590, now seen corresponding path program 1 times [2021-10-29 05:21:32,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:32,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783110845] [2021-10-29 05:21:32,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:32,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:32,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:32,184 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:32,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783110845] [2021-10-29 05:21:32,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783110845] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:32,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:32,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:32,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111966214] [2021-10-29 05:21:32,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:32,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:32,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:32,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:32,187 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) [2021-10-29 05:21:32,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:32,339 INFO L93 Difference]: Finished difference Result 317 states and 399 transitions. [2021-10-29 05:21:32,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:32,340 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 [2021-10-29 05:21:32,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:32,342 INFO L225 Difference]: With dead ends: 317 [2021-10-29 05:21:32,342 INFO L226 Difference]: Without dead ends: 317 [2021-10-29 05:21:32,342 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:32,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-10-29 05:21:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2021-10-29 05:21:32,349 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) [2021-10-29 05:21:32,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 399 transitions. [2021-10-29 05:21:32,351 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 399 transitions. Word has length 25 [2021-10-29 05:21:32,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:32,351 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 399 transitions. [2021-10-29 05:21:32,352 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) [2021-10-29 05:21:32,352 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 399 transitions. [2021-10-29 05:21:32,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 05:21:32,353 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:32,353 INFO L513 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] [2021-10-29 05:21:32,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-29 05:21:32,353 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)] === [2021-10-29 05:21:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash -302097573, now seen corresponding path program 1 times [2021-10-29 05:21:32,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:32,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234229364] [2021-10-29 05:21:32,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:32,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:32,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:32,395 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:32,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234229364] [2021-10-29 05:21:32,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234229364] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:32,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:32,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:32,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767340125] [2021-10-29 05:21:32,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:32,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:32,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:32,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:32,397 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) [2021-10-29 05:21:32,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:32,549 INFO L93 Difference]: Finished difference Result 373 states and 457 transitions. [2021-10-29 05:21:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:21:32,549 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 [2021-10-29 05:21:32,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:32,552 INFO L225 Difference]: With dead ends: 373 [2021-10-29 05:21:32,552 INFO L226 Difference]: Without dead ends: 372 [2021-10-29 05:21:32,552 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:21:32,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-10-29 05:21:32,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 330. [2021-10-29 05:21:32,560 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) [2021-10-29 05:21:32,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 415 transitions. [2021-10-29 05:21:32,562 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 415 transitions. Word has length 25 [2021-10-29 05:21:32,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:32,562 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 415 transitions. [2021-10-29 05:21:32,562 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) [2021-10-29 05:21:32,562 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 415 transitions. [2021-10-29 05:21:32,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 05:21:32,563 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:32,564 INFO L513 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] [2021-10-29 05:21:32,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-29 05:21:32,564 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)] === [2021-10-29 05:21:32,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:32,565 INFO L85 PathProgramCache]: Analyzing trace with hash -302109489, now seen corresponding path program 1 times [2021-10-29 05:21:32,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:32,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434979017] [2021-10-29 05:21:32,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:32,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:32,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:32,615 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:32,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434979017] [2021-10-29 05:21:32,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434979017] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:32,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:32,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:32,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698963744] [2021-10-29 05:21:32,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:32,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:32,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:32,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:32,618 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) [2021-10-29 05:21:32,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:32,756 INFO L93 Difference]: Finished difference Result 338 states and 421 transitions. [2021-10-29 05:21:32,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:32,756 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 [2021-10-29 05:21:32,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:32,758 INFO L225 Difference]: With dead ends: 338 [2021-10-29 05:21:32,759 INFO L226 Difference]: Without dead ends: 327 [2021-10-29 05:21:32,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:32,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-10-29 05:21:32,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 323. [2021-10-29 05:21:32,766 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) [2021-10-29 05:21:32,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 404 transitions. [2021-10-29 05:21:32,768 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 404 transitions. Word has length 25 [2021-10-29 05:21:32,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:32,768 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 404 transitions. [2021-10-29 05:21:32,768 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) [2021-10-29 05:21:32,768 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 404 transitions. [2021-10-29 05:21:32,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 05:21:32,769 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:32,770 INFO L513 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] [2021-10-29 05:21:32,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-29 05:21:32,770 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)] === [2021-10-29 05:21:32,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:32,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1429356880, now seen corresponding path program 1 times [2021-10-29 05:21:32,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:32,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127449151] [2021-10-29 05:21:32,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:32,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:32,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:32,819 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:32,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127449151] [2021-10-29 05:21:32,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127449151] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:32,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:32,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:32,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658041874] [2021-10-29 05:21:32,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:32,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:32,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:32,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:32,822 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) [2021-10-29 05:21:32,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:32,963 INFO L93 Difference]: Finished difference Result 323 states and 396 transitions. [2021-10-29 05:21:32,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:32,963 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 [2021-10-29 05:21:32,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:32,965 INFO L225 Difference]: With dead ends: 323 [2021-10-29 05:21:32,965 INFO L226 Difference]: Without dead ends: 323 [2021-10-29 05:21:32,966 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:32,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-10-29 05:21:32,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-10-29 05:21:32,972 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) [2021-10-29 05:21:32,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 396 transitions. [2021-10-29 05:21:32,974 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 396 transitions. Word has length 25 [2021-10-29 05:21:32,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:32,974 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 396 transitions. [2021-10-29 05:21:32,974 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) [2021-10-29 05:21:32,975 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 396 transitions. [2021-10-29 05:21:32,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 05:21:32,976 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:32,976 INFO L513 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] [2021-10-29 05:21:32,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-29 05:21:32,976 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)] === [2021-10-29 05:21:32,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:32,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1543923643, now seen corresponding path program 1 times [2021-10-29 05:21:32,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:32,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217354137] [2021-10-29 05:21:32,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:32,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:33,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:33,036 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:33,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217354137] [2021-10-29 05:21:33,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217354137] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:33,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:33,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:33,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050797860] [2021-10-29 05:21:33,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:33,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:33,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:33,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:33,038 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) [2021-10-29 05:21:33,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:33,260 INFO L93 Difference]: Finished difference Result 373 states and 458 transitions. [2021-10-29 05:21:33,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:21:33,261 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 [2021-10-29 05:21:33,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:33,263 INFO L225 Difference]: With dead ends: 373 [2021-10-29 05:21:33,263 INFO L226 Difference]: Without dead ends: 373 [2021-10-29 05:21:33,263 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:33,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-10-29 05:21:33,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 323. [2021-10-29 05:21:33,270 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) [2021-10-29 05:21:33,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 396 transitions. [2021-10-29 05:21:33,272 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 396 transitions. Word has length 26 [2021-10-29 05:21:33,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:33,272 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 396 transitions. [2021-10-29 05:21:33,273 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) [2021-10-29 05:21:33,273 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 396 transitions. [2021-10-29 05:21:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 05:21:33,274 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:33,274 INFO L513 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] [2021-10-29 05:21:33,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-29 05:21:33,274 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)] === [2021-10-29 05:21:33,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:33,275 INFO L85 PathProgramCache]: Analyzing trace with hash 2005257310, now seen corresponding path program 1 times [2021-10-29 05:21:33,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:33,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292822701] [2021-10-29 05:21:33,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:33,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:33,362 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:33,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292822701] [2021-10-29 05:21:33,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292822701] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:33,363 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:33,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 05:21:33,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984257004] [2021-10-29 05:21:33,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:33,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:33,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:33,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:33,365 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) [2021-10-29 05:21:33,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:33,506 INFO L93 Difference]: Finished difference Result 367 states and 439 transitions. [2021-10-29 05:21:33,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:21:33,506 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 [2021-10-29 05:21:33,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:33,509 INFO L225 Difference]: With dead ends: 367 [2021-10-29 05:21:33,509 INFO L226 Difference]: Without dead ends: 351 [2021-10-29 05:21:33,509 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:21:33,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-10-29 05:21:33,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 317. [2021-10-29 05:21:33,516 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) [2021-10-29 05:21:33,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 379 transitions. [2021-10-29 05:21:33,517 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 379 transitions. Word has length 26 [2021-10-29 05:21:33,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:33,518 INFO L470 AbstractCegarLoop]: Abstraction has 317 states and 379 transitions. [2021-10-29 05:21:33,518 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) [2021-10-29 05:21:33,518 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 379 transitions. [2021-10-29 05:21:33,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 05:21:33,519 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:33,519 INFO L513 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] [2021-10-29 05:21:33,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-29 05:21:33,520 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)] === [2021-10-29 05:21:33,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:33,520 INFO L85 PathProgramCache]: Analyzing trace with hash 133876532, now seen corresponding path program 1 times [2021-10-29 05:21:33,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:33,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678609567] [2021-10-29 05:21:33,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:33,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:33,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:33,550 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:33,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678609567] [2021-10-29 05:21:33,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678609567] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:33,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:33,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:33,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381267339] [2021-10-29 05:21:33,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:33,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:33,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:33,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:33,553 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) [2021-10-29 05:21:33,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:33,635 INFO L93 Difference]: Finished difference Result 333 states and 388 transitions. [2021-10-29 05:21:33,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:33,636 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 [2021-10-29 05:21:33,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:33,638 INFO L225 Difference]: With dead ends: 333 [2021-10-29 05:21:33,639 INFO L226 Difference]: Without dead ends: 333 [2021-10-29 05:21:33,639 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:33,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-10-29 05:21:33,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 319. [2021-10-29 05:21:33,646 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) [2021-10-29 05:21:33,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 377 transitions. [2021-10-29 05:21:33,647 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 377 transitions. Word has length 26 [2021-10-29 05:21:33,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:33,648 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 377 transitions. [2021-10-29 05:21:33,648 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) [2021-10-29 05:21:33,648 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 377 transitions. [2021-10-29 05:21:33,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 05:21:33,649 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:33,649 INFO L513 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] [2021-10-29 05:21:33,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-29 05:21:33,650 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)] === [2021-10-29 05:21:33,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:33,650 INFO L85 PathProgramCache]: Analyzing trace with hash -127215030, now seen corresponding path program 1 times [2021-10-29 05:21:33,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:33,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836543106] [2021-10-29 05:21:33,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:33,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:33,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:33,700 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:33,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836543106] [2021-10-29 05:21:33,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836543106] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:33,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:33,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:33,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107571141] [2021-10-29 05:21:33,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:33,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:33,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:33,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:33,702 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) [2021-10-29 05:21:33,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:33,811 INFO L93 Difference]: Finished difference Result 327 states and 382 transitions. [2021-10-29 05:21:33,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:33,812 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 [2021-10-29 05:21:33,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:33,813 INFO L225 Difference]: With dead ends: 327 [2021-10-29 05:21:33,814 INFO L226 Difference]: Without dead ends: 301 [2021-10-29 05:21:33,814 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:33,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-10-29 05:21:33,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 293. [2021-10-29 05:21:33,820 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) [2021-10-29 05:21:33,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 348 transitions. [2021-10-29 05:21:33,822 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 348 transitions. Word has length 27 [2021-10-29 05:21:33,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:33,822 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 348 transitions. [2021-10-29 05:21:33,822 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) [2021-10-29 05:21:33,823 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 348 transitions. [2021-10-29 05:21:33,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 05:21:33,824 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:33,824 INFO L513 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] [2021-10-29 05:21:33,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-29 05:21:33,824 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)] === [2021-10-29 05:21:33,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:33,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1014613507, now seen corresponding path program 1 times [2021-10-29 05:21:33,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:33,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583286734] [2021-10-29 05:21:33,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:33,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:33,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:33,863 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:33,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583286734] [2021-10-29 05:21:33,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583286734] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:33,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:33,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:33,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168543076] [2021-10-29 05:21:33,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:33,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:33,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:33,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:33,866 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) [2021-10-29 05:21:33,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:33,957 INFO L93 Difference]: Finished difference Result 302 states and 353 transitions. [2021-10-29 05:21:33,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:33,957 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 [2021-10-29 05:21:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:33,959 INFO L225 Difference]: With dead ends: 302 [2021-10-29 05:21:33,960 INFO L226 Difference]: Without dead ends: 302 [2021-10-29 05:21:33,960 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:33,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-10-29 05:21:33,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 293. [2021-10-29 05:21:33,965 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) [2021-10-29 05:21:33,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 346 transitions. [2021-10-29 05:21:33,967 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 346 transitions. Word has length 28 [2021-10-29 05:21:33,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:33,967 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 346 transitions. [2021-10-29 05:21:33,968 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) [2021-10-29 05:21:33,968 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 346 transitions. [2021-10-29 05:21:33,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 05:21:33,969 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:33,969 INFO L513 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] [2021-10-29 05:21:33,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-29 05:21:33,969 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)] === [2021-10-29 05:21:33,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:33,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1390204788, now seen corresponding path program 1 times [2021-10-29 05:21:33,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:33,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675860951] [2021-10-29 05:21:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:33,971 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:34,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:34,021 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:34,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675860951] [2021-10-29 05:21:34,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675860951] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:34,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:34,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:34,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636208857] [2021-10-29 05:21:34,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:34,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:34,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:34,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:34,023 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) [2021-10-29 05:21:34,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:34,247 INFO L93 Difference]: Finished difference Result 321 states and 378 transitions. [2021-10-29 05:21:34,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:34,248 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 [2021-10-29 05:21:34,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:34,250 INFO L225 Difference]: With dead ends: 321 [2021-10-29 05:21:34,250 INFO L226 Difference]: Without dead ends: 321 [2021-10-29 05:21:34,251 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:34,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-10-29 05:21:34,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 293. [2021-10-29 05:21:34,256 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) [2021-10-29 05:21:34,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 346 transitions. [2021-10-29 05:21:34,258 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 346 transitions. Word has length 28 [2021-10-29 05:21:34,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:34,258 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 346 transitions. [2021-10-29 05:21:34,258 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) [2021-10-29 05:21:34,258 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 346 transitions. [2021-10-29 05:21:34,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-29 05:21:34,260 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:34,260 INFO L513 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] [2021-10-29 05:21:34,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-29 05:21:34,260 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)] === [2021-10-29 05:21:34,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:34,261 INFO L85 PathProgramCache]: Analyzing trace with hash 173482979, now seen corresponding path program 1 times [2021-10-29 05:21:34,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:34,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617927958] [2021-10-29 05:21:34,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:34,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:34,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:34,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:34,300 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:34,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617927958] [2021-10-29 05:21:34,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617927958] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:34,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:34,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:34,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088694440] [2021-10-29 05:21:34,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:34,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:34,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:34,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:34,302 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) [2021-10-29 05:21:34,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:34,360 INFO L93 Difference]: Finished difference Result 318 states and 369 transitions. [2021-10-29 05:21:34,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:34,360 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 [2021-10-29 05:21:34,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:34,362 INFO L225 Difference]: With dead ends: 318 [2021-10-29 05:21:34,363 INFO L226 Difference]: Without dead ends: 303 [2021-10-29 05:21:34,363 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:21:34,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-10-29 05:21:34,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 290. [2021-10-29 05:21:34,369 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) [2021-10-29 05:21:34,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 340 transitions. [2021-10-29 05:21:34,371 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 340 transitions. Word has length 29 [2021-10-29 05:21:34,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:34,371 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 340 transitions. [2021-10-29 05:21:34,372 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) [2021-10-29 05:21:34,372 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 340 transitions. [2021-10-29 05:21:34,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-29 05:21:34,373 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:34,373 INFO L513 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] [2021-10-29 05:21:34,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-29 05:21:34,373 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)] === [2021-10-29 05:21:34,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:34,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1921566968, now seen corresponding path program 1 times [2021-10-29 05:21:34,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:34,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867790046] [2021-10-29 05:21:34,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:34,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:34,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:34,414 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:34,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867790046] [2021-10-29 05:21:34,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867790046] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:34,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:34,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:34,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436302532] [2021-10-29 05:21:34,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:34,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:34,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:34,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:34,417 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) [2021-10-29 05:21:34,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:34,534 INFO L93 Difference]: Finished difference Result 266 states and 310 transitions. [2021-10-29 05:21:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:34,535 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 [2021-10-29 05:21:34,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:34,537 INFO L225 Difference]: With dead ends: 266 [2021-10-29 05:21:34,537 INFO L226 Difference]: Without dead ends: 266 [2021-10-29 05:21:34,537 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:34,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-29 05:21:34,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-29 05:21:34,543 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) [2021-10-29 05:21:34,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 310 transitions. [2021-10-29 05:21:34,544 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 310 transitions. Word has length 29 [2021-10-29 05:21:34,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:34,544 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 310 transitions. [2021-10-29 05:21:34,545 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) [2021-10-29 05:21:34,545 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 310 transitions. [2021-10-29 05:21:34,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-29 05:21:34,546 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:34,546 INFO L513 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] [2021-10-29 05:21:34,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-29 05:21:34,548 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)] === [2021-10-29 05:21:34,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:34,548 INFO L85 PathProgramCache]: Analyzing trace with hash -131377662, now seen corresponding path program 1 times [2021-10-29 05:21:34,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:34,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923688545] [2021-10-29 05:21:34,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:34,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:34,589 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:34,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923688545] [2021-10-29 05:21:34,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923688545] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:34,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:34,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:34,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558453109] [2021-10-29 05:21:34,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:34,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:34,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:34,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:34,592 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) [2021-10-29 05:21:34,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:34,630 INFO L93 Difference]: Finished difference Result 269 states and 312 transitions. [2021-10-29 05:21:34,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:34,630 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 [2021-10-29 05:21:34,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:34,632 INFO L225 Difference]: With dead ends: 269 [2021-10-29 05:21:34,633 INFO L226 Difference]: Without dead ends: 266 [2021-10-29 05:21:34,633 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:21:34,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-29 05:21:34,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-29 05:21:34,638 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) [2021-10-29 05:21:34,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 309 transitions. [2021-10-29 05:21:34,639 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 309 transitions. Word has length 29 [2021-10-29 05:21:34,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:34,639 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 309 transitions. [2021-10-29 05:21:34,640 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) [2021-10-29 05:21:34,640 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 309 transitions. [2021-10-29 05:21:34,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 05:21:34,641 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:34,641 INFO L513 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] [2021-10-29 05:21:34,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-29 05:21:34,641 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)] === [2021-10-29 05:21:34,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:34,644 INFO L85 PathProgramCache]: Analyzing trace with hash 36032888, now seen corresponding path program 1 times [2021-10-29 05:21:34,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:34,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052764529] [2021-10-29 05:21:34,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:34,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:34,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:34,718 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:34,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052764529] [2021-10-29 05:21:34,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052764529] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:34,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:34,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:34,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034764957] [2021-10-29 05:21:34,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:34,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:34,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:34,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:34,722 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) [2021-10-29 05:21:34,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:34,865 INFO L93 Difference]: Finished difference Result 289 states and 328 transitions. [2021-10-29 05:21:34,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:21:34,866 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 [2021-10-29 05:21:34,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:34,868 INFO L225 Difference]: With dead ends: 289 [2021-10-29 05:21:34,868 INFO L226 Difference]: Without dead ends: 272 [2021-10-29 05:21:34,871 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:21:34,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-10-29 05:21:34,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 258. [2021-10-29 05:21:34,880 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) [2021-10-29 05:21:34,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 300 transitions. [2021-10-29 05:21:34,882 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 300 transitions. Word has length 30 [2021-10-29 05:21:34,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:34,883 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 300 transitions. [2021-10-29 05:21:34,883 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) [2021-10-29 05:21:34,883 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 300 transitions. [2021-10-29 05:21:34,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 05:21:34,884 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:34,884 INFO L513 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] [2021-10-29 05:21:34,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-29 05:21:34,885 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)] === [2021-10-29 05:21:34,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:34,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1773868595, now seen corresponding path program 1 times [2021-10-29 05:21:34,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:34,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045318022] [2021-10-29 05:21:34,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:34,886 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:34,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:34,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:34,962 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:34,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045318022] [2021-10-29 05:21:34,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045318022] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:34,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:34,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:34,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349062381] [2021-10-29 05:21:34,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:34,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:34,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:34,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:34,965 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) [2021-10-29 05:21:35,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:35,161 INFO L93 Difference]: Finished difference Result 266 states and 311 transitions. [2021-10-29 05:21:35,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:21:35,161 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 [2021-10-29 05:21:35,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:35,163 INFO L225 Difference]: With dead ends: 266 [2021-10-29 05:21:35,163 INFO L226 Difference]: Without dead ends: 266 [2021-10-29 05:21:35,164 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:35,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-29 05:21:35,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 248. [2021-10-29 05:21:35,175 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) [2021-10-29 05:21:35,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 287 transitions. [2021-10-29 05:21:35,177 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 287 transitions. Word has length 30 [2021-10-29 05:21:35,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:35,177 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 287 transitions. [2021-10-29 05:21:35,177 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) [2021-10-29 05:21:35,177 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 287 transitions. [2021-10-29 05:21:35,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 05:21:35,178 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:35,178 INFO L513 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] [2021-10-29 05:21:35,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-29 05:21:35,179 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)] === [2021-10-29 05:21:35,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:35,179 INFO L85 PathProgramCache]: Analyzing trace with hash 515791622, now seen corresponding path program 1 times [2021-10-29 05:21:35,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:35,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501841124] [2021-10-29 05:21:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:35,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:35,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:35,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:35,238 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:35,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501841124] [2021-10-29 05:21:35,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501841124] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:35,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:35,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:35,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325841642] [2021-10-29 05:21:35,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:35,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:35,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:35,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:35,241 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) [2021-10-29 05:21:35,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:35,277 INFO L93 Difference]: Finished difference Result 250 states and 285 transitions. [2021-10-29 05:21:35,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:21:35,277 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 [2021-10-29 05:21:35,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:35,279 INFO L225 Difference]: With dead ends: 250 [2021-10-29 05:21:35,279 INFO L226 Difference]: Without dead ends: 247 [2021-10-29 05:21:35,280 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:21:35,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-29 05:21:35,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 234. [2021-10-29 05:21:35,286 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) [2021-10-29 05:21:35,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 269 transitions. [2021-10-29 05:21:35,288 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 269 transitions. Word has length 31 [2021-10-29 05:21:35,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:35,288 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 269 transitions. [2021-10-29 05:21:35,288 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) [2021-10-29 05:21:35,289 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 269 transitions. [2021-10-29 05:21:35,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 05:21:35,289 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:35,290 INFO L513 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] [2021-10-29 05:21:35,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-29 05:21:35,290 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)] === [2021-10-29 05:21:35,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:35,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1367803045, now seen corresponding path program 1 times [2021-10-29 05:21:35,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:35,291 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984922380] [2021-10-29 05:21:35,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:35,291 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:35,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:35,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:35,339 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:35,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984922380] [2021-10-29 05:21:35,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984922380] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:35,339 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:35,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:35,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976336856] [2021-10-29 05:21:35,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:35,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:35,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:35,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:35,341 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) [2021-10-29 05:21:35,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:35,494 INFO L93 Difference]: Finished difference Result 242 states and 281 transitions. [2021-10-29 05:21:35,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:35,495 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 [2021-10-29 05:21:35,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:35,496 INFO L225 Difference]: With dead ends: 242 [2021-10-29 05:21:35,496 INFO L226 Difference]: Without dead ends: 242 [2021-10-29 05:21:35,497 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:35,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-29 05:21:35,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 227. [2021-10-29 05:21:35,510 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) [2021-10-29 05:21:35,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 260 transitions. [2021-10-29 05:21:35,515 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 260 transitions. Word has length 32 [2021-10-29 05:21:35,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:35,516 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 260 transitions. [2021-10-29 05:21:35,522 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) [2021-10-29 05:21:35,522 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 260 transitions. [2021-10-29 05:21:35,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:21:35,523 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:35,523 INFO L513 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] [2021-10-29 05:21:35,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-29 05:21:35,523 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)] === [2021-10-29 05:21:35,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:35,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1460252688, now seen corresponding path program 1 times [2021-10-29 05:21:35,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:35,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037090087] [2021-10-29 05:21:35,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:35,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:35,569 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:35,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037090087] [2021-10-29 05:21:35,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037090087] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:35,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:35,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:21:35,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078034044] [2021-10-29 05:21:35,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:35,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:35,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:35,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:35,574 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) [2021-10-29 05:21:35,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:35,593 INFO L93 Difference]: Finished difference Result 228 states and 259 transitions. [2021-10-29 05:21:35,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:35,593 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 [2021-10-29 05:21:35,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:35,595 INFO L225 Difference]: With dead ends: 228 [2021-10-29 05:21:35,595 INFO L226 Difference]: Without dead ends: 228 [2021-10-29 05:21:35,596 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:35,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-10-29 05:21:35,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 224. [2021-10-29 05:21:35,600 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) [2021-10-29 05:21:35,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2021-10-29 05:21:35,602 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 33 [2021-10-29 05:21:35,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:35,602 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2021-10-29 05:21:35,602 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) [2021-10-29 05:21:35,603 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2021-10-29 05:21:35,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:21:35,604 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:35,604 INFO L513 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] [2021-10-29 05:21:35,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-29 05:21:35,604 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)] === [2021-10-29 05:21:35,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:35,605 INFO L85 PathProgramCache]: Analyzing trace with hash 164656509, now seen corresponding path program 1 times [2021-10-29 05:21:35,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:35,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399223679] [2021-10-29 05:21:35,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:35,606 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:35,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:35,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:35,688 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:35,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399223679] [2021-10-29 05:21:35,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399223679] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:35,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:35,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 05:21:35,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562682604] [2021-10-29 05:21:35,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:35,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:35,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:35,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:35,691 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) [2021-10-29 05:21:35,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:35,848 INFO L93 Difference]: Finished difference Result 242 states and 272 transitions. [2021-10-29 05:21:35,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:21:35,849 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 [2021-10-29 05:21:35,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:35,850 INFO L225 Difference]: With dead ends: 242 [2021-10-29 05:21:35,850 INFO L226 Difference]: Without dead ends: 198 [2021-10-29 05:21:35,850 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:21:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-10-29 05:21:35,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 178. [2021-10-29 05:21:35,854 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) [2021-10-29 05:21:35,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 207 transitions. [2021-10-29 05:21:35,855 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 207 transitions. Word has length 33 [2021-10-29 05:21:35,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:35,855 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 207 transitions. [2021-10-29 05:21:35,855 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) [2021-10-29 05:21:35,855 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 207 transitions. [2021-10-29 05:21:35,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-29 05:21:35,856 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:35,856 INFO L513 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] [2021-10-29 05:21:35,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-29 05:21:35,857 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)] === [2021-10-29 05:21:35,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:35,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1247300491, now seen corresponding path program 1 times [2021-10-29 05:21:35,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:35,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384662142] [2021-10-29 05:21:35,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:35,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:35,913 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:35,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384662142] [2021-10-29 05:21:35,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384662142] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:35,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:35,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:35,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009018088] [2021-10-29 05:21:35,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:35,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:35,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:35,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:35,916 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) [2021-10-29 05:21:36,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:36,025 INFO L93 Difference]: Finished difference Result 208 states and 248 transitions. [2021-10-29 05:21:36,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:36,026 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 [2021-10-29 05:21:36,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:36,027 INFO L225 Difference]: With dead ends: 208 [2021-10-29 05:21:36,028 INFO L226 Difference]: Without dead ends: 208 [2021-10-29 05:21:36,028 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:36,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-29 05:21:36,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 178. [2021-10-29 05:21:36,032 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) [2021-10-29 05:21:36,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 207 transitions. [2021-10-29 05:21:36,033 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 207 transitions. Word has length 36 [2021-10-29 05:21:36,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:36,033 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 207 transitions. [2021-10-29 05:21:36,033 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) [2021-10-29 05:21:36,034 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 207 transitions. [2021-10-29 05:21:36,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-29 05:21:36,034 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:36,035 INFO L513 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] [2021-10-29 05:21:36,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-29 05:21:36,035 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)] === [2021-10-29 05:21:36,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:36,036 INFO L85 PathProgramCache]: Analyzing trace with hash 2090740063, now seen corresponding path program 1 times [2021-10-29 05:21:36,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:36,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611709462] [2021-10-29 05:21:36,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:36,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:36,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:36,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:36,089 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:36,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611709462] [2021-10-29 05:21:36,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611709462] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:36,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:36,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:36,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034035671] [2021-10-29 05:21:36,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:36,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:36,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:36,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:36,092 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) [2021-10-29 05:21:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:36,132 INFO L93 Difference]: Finished difference Result 166 states and 194 transitions. [2021-10-29 05:21:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:36,132 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 [2021-10-29 05:21:36,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:36,133 INFO L225 Difference]: With dead ends: 166 [2021-10-29 05:21:36,133 INFO L226 Difference]: Without dead ends: 137 [2021-10-29 05:21:36,134 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:21:36,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-29 05:21:36,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-10-29 05:21:36,137 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) [2021-10-29 05:21:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 157 transitions. [2021-10-29 05:21:36,138 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 157 transitions. Word has length 37 [2021-10-29 05:21:36,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:36,138 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 157 transitions. [2021-10-29 05:21:36,138 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) [2021-10-29 05:21:36,138 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 157 transitions. [2021-10-29 05:21:36,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-29 05:21:36,139 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:36,139 INFO L513 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] [2021-10-29 05:21:36,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-29 05:21:36,140 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)] === [2021-10-29 05:21:36,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:36,140 INFO L85 PathProgramCache]: Analyzing trace with hash 183553689, now seen corresponding path program 1 times [2021-10-29 05:21:36,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:36,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137785794] [2021-10-29 05:21:36,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:36,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:36,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:36,218 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:36,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137785794] [2021-10-29 05:21:36,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137785794] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:36,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:36,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-29 05:21:36,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78069438] [2021-10-29 05:21:36,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 05:21:36,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:36,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 05:21:36,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:21:36,220 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) [2021-10-29 05:21:36,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:36,338 INFO L93 Difference]: Finished difference Result 151 states and 170 transitions. [2021-10-29 05:21:36,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:21:36,338 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 [2021-10-29 05:21:36,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:36,339 INFO L225 Difference]: With dead ends: 151 [2021-10-29 05:21:36,339 INFO L226 Difference]: Without dead ends: 137 [2021-10-29 05:21:36,340 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:21:36,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-29 05:21:36,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-10-29 05:21:36,342 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) [2021-10-29 05:21:36,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 156 transitions. [2021-10-29 05:21:36,343 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 156 transitions. Word has length 40 [2021-10-29 05:21:36,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:36,343 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 156 transitions. [2021-10-29 05:21:36,343 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) [2021-10-29 05:21:36,344 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 156 transitions. [2021-10-29 05:21:36,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-29 05:21:36,344 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:36,344 INFO L513 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] [2021-10-29 05:21:36,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-29 05:21:36,345 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)] === [2021-10-29 05:21:36,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:36,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1773356194, now seen corresponding path program 1 times [2021-10-29 05:21:36,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:36,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258515794] [2021-10-29 05:21:36,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:36,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:36,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:36,398 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:36,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258515794] [2021-10-29 05:21:36,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258515794] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:36,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:36,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-29 05:21:36,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917316921] [2021-10-29 05:21:36,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:36,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:36,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:36,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:36,400 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) [2021-10-29 05:21:36,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:36,480 INFO L93 Difference]: Finished difference Result 162 states and 182 transitions. [2021-10-29 05:21:36,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:21:36,481 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 [2021-10-29 05:21:36,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:36,482 INFO L225 Difference]: With dead ends: 162 [2021-10-29 05:21:36,482 INFO L226 Difference]: Without dead ends: 146 [2021-10-29 05:21:36,482 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:21:36,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-10-29 05:21:36,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2021-10-29 05:21:36,485 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) [2021-10-29 05:21:36,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 163 transitions. [2021-10-29 05:21:36,486 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 163 transitions. Word has length 40 [2021-10-29 05:21:36,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:36,486 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 163 transitions. [2021-10-29 05:21:36,487 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) [2021-10-29 05:21:36,487 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 163 transitions. [2021-10-29 05:21:36,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-29 05:21:36,488 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:36,488 INFO L513 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] [2021-10-29 05:21:36,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-29 05:21:36,488 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)] === [2021-10-29 05:21:36,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:36,489 INFO L85 PathProgramCache]: Analyzing trace with hash 657994414, now seen corresponding path program 1 times [2021-10-29 05:21:36,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:36,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285112757] [2021-10-29 05:21:36,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:36,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:36,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:36,544 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:36,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285112757] [2021-10-29 05:21:36,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285112757] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:36,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:36,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:21:36,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237605063] [2021-10-29 05:21:36,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:21:36,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:36,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:21:36,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:21:36,547 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) [2021-10-29 05:21:36,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:36,646 INFO L93 Difference]: Finished difference Result 151 states and 171 transitions. [2021-10-29 05:21:36,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:36,647 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 [2021-10-29 05:21:36,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:36,648 INFO L225 Difference]: With dead ends: 151 [2021-10-29 05:21:36,648 INFO L226 Difference]: Without dead ends: 151 [2021-10-29 05:21:36,649 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:36,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2021-10-29 05:21:36,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 122. [2021-10-29 05:21:36,651 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) [2021-10-29 05:21:36,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2021-10-29 05:21:36,652 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 133 transitions. Word has length 40 [2021-10-29 05:21:36,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:36,652 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-10-29 05:21:36,653 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) [2021-10-29 05:21:36,653 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 133 transitions. [2021-10-29 05:21:36,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-29 05:21:36,656 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:36,656 INFO L513 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] [2021-10-29 05:21:36,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-10-29 05:21:36,657 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)] === [2021-10-29 05:21:36,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:36,657 INFO L85 PathProgramCache]: Analyzing trace with hash 982728344, now seen corresponding path program 1 times [2021-10-29 05:21:36,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:36,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628082324] [2021-10-29 05:21:36,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:36,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:36,706 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:21:36,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628082324] [2021-10-29 05:21:36,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628082324] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:36,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:36,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:21:36,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884870107] [2021-10-29 05:21:36,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:36,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:21:36,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:36,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:36,708 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) [2021-10-29 05:21:36,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:36,716 INFO L93 Difference]: Finished difference Result 136 states and 145 transitions. [2021-10-29 05:21:36,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:36,716 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 [2021-10-29 05:21:36,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:36,718 INFO L225 Difference]: With dead ends: 136 [2021-10-29 05:21:36,718 INFO L226 Difference]: Without dead ends: 136 [2021-10-29 05:21:36,719 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:36,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2021-10-29 05:21:36,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 122. [2021-10-29 05:21:36,721 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) [2021-10-29 05:21:36,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 132 transitions. [2021-10-29 05:21:36,722 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 132 transitions. Word has length 41 [2021-10-29 05:21:36,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:36,722 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 132 transitions. [2021-10-29 05:21:36,723 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) [2021-10-29 05:21:36,723 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 132 transitions. [2021-10-29 05:21:36,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-29 05:21:36,727 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:36,727 INFO L513 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] [2021-10-29 05:21:36,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-10-29 05:21:36,728 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)] === [2021-10-29 05:21:36,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:36,728 INFO L85 PathProgramCache]: Analyzing trace with hash -463900371, now seen corresponding path program 1 times [2021-10-29 05:21:36,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:21:36,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364479856] [2021-10-29 05:21:36,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:36,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:21:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:21:36,753 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:21:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:21:36,854 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:21:36,855 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:21:36,856 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,858 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,859 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,862 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,863 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,864 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,865 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,866 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,867 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,868 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,869 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,870 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,871 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,872 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,873 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,874 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,875 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,876 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:21:36,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-29 05:21:36,880 INFO L731 BasicCegarLoop]: Path program 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] [2021-10-29 05:21:36,884 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:21:37,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:21:37 BoogieIcfgContainer [2021-10-29 05:21:37,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:21:37,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:21:37,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:21:37,056 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:21:37,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:21:27" (3/4) ... [2021-10-29 05:21:37,060 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:21:37,060 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:21:37,062 INFO L168 Benchmark]: Toolchain (without parser) took 13823.26 ms. Allocated memory was 90.2 MB in the beginning and 174.1 MB in the end (delta: 83.9 MB). Free memory was 54.3 MB in the beginning and 37.7 MB in the end (delta: 16.6 MB). Peak memory consumption was 99.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:37,062 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 63.1 MB in the beginning and 63.0 MB in the end (delta: 32.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:21:37,063 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.80 ms. Allocated memory is still 90.2 MB. Free memory was 54.1 MB in the beginning and 52.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:37,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.27 ms. Allocated memory is still 90.2 MB. Free memory was 52.0 MB in the beginning and 41.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:37,070 INFO L168 Benchmark]: Boogie Preprocessor took 125.93 ms. Allocated memory is still 90.2 MB. Free memory was 41.6 MB in the beginning and 35.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:37,070 INFO L168 Benchmark]: RCFGBuilder took 3182.94 ms. Allocated memory was 90.2 MB in the beginning and 144.7 MB in the end (delta: 54.5 MB). Free memory was 35.0 MB in the beginning and 66.6 MB in the end (delta: -31.6 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:37,071 INFO L168 Benchmark]: TraceAbstraction took 9540.46 ms. Allocated memory was 144.7 MB in the beginning and 174.1 MB in the end (delta: 29.4 MB). Free memory was 65.7 MB in the beginning and 38.8 MB in the end (delta: 26.9 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:21:37,071 INFO L168 Benchmark]: Witness Printer took 4.69 ms. Allocated memory is still 174.1 MB. Free memory was 38.8 MB in the beginning and 37.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:21:37,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 63.1 MB in the beginning and 63.0 MB in the end (delta: 32.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 765.80 ms. Allocated memory is still 90.2 MB. Free memory was 54.1 MB in the beginning and 52.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 194.27 ms. Allocated memory is still 90.2 MB. Free memory was 52.0 MB in the beginning and 41.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 125.93 ms. Allocated memory is still 90.2 MB. Free memory was 41.6 MB in the beginning and 35.0 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3182.94 ms. Allocated memory was 90.2 MB in the beginning and 144.7 MB in the end (delta: 54.5 MB). Free memory was 35.0 MB in the beginning and 66.6 MB in the end (delta: -31.6 MB). Peak memory consumption was 31.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9540.46 ms. Allocated memory was 144.7 MB in the beginning and 174.1 MB in the end (delta: 29.4 MB). Free memory was 65.7 MB in the beginning and 38.8 MB in the end (delta: 26.9 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.69 ms. Allocated memory is still 174.1 MB. Free memory was 38.8 MB in the beginning and 37.7 MB in the end (delta: 1.0 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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: 9.3s, OverallIterations: 49, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 13688 SDtfs, 8305 SDslu, 16044 SDs, 0 SdLazy, 3888 SolverSat, 421 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s Time, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 48 MinimizatonAttempts, 774 StatesRemovedByMinimization, 36 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s 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 [2021-10-29 05:21:37,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/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-b2eff8b [2021-10-29 05:21:39,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:21:39,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:21:39,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:21:39,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:21:39,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:21:39,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:21:39,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:21:39,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:21:39,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:21:39,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:21:39,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:21:39,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:21:39,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:21:39,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:21:39,825 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:21:39,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:21:39,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:21:39,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:21:39,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:21:39,849 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:21:39,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:21:39,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:21:39,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:21:39,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:21:39,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:21:39,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:21:39,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:21:39,868 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:21:39,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:21:39,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:21:39,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:21:39,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:21:39,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:21:39,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:21:39,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:21:39,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:21:39,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:21:39,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:21:39,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:21:39,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:21:39,885 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-29 05:21:39,930 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:21:39,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:21:39,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:21:39,932 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:21:39,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:21:39,933 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:21:39,933 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:21:39,933 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:21:39,933 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:21:39,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 05:21:39,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 05:21:39,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:21:39,937 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:21:39,937 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:21:39,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:21:39,937 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:21:39,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:21:39,938 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 05:21:39,938 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 05:21:39,938 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 05:21:39,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:21:39,939 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:21:39,939 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:21:39,939 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:21:39,939 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:21:39,939 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:21:39,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:21:39,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:21:39,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:21:39,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:21:39,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:21:39,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:21:39,941 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:21:39,942 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:21:39,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:21:39,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:21:39,942 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_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1680e665d6c38e33bd93081ad3c7b8b4f909838cd1480382a495b19dd638ce67 [2021-10-29 05:21:40,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:21:40,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:21:40,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:21:40,421 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:21:40,422 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:21:40,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-10-29 05:21:40,499 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/data/d7ae1165f/b8d61ae3683d49fc99aefe6f636eaf06/FLAGcdf0da653 [2021-10-29 05:21:41,221 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:21:41,222 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c [2021-10-29 05:21:41,242 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/data/d7ae1165f/b8d61ae3683d49fc99aefe6f636eaf06/FLAGcdf0da653 [2021-10-29 05:21:41,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/data/d7ae1165f/b8d61ae3683d49fc99aefe6f636eaf06 [2021-10-29 05:21:41,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:21:41,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:21:41,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:21:41,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:21:41,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:21:41,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:21:41" (1/1) ... [2021-10-29 05:21:41,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19a08401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:41, skipping insertion in model container [2021-10-29 05:21:41,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:21:41" (1/1) ... [2021-10-29 05:21:41,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:21:41,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:21:41,898 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_01e2d72c-9982-4757-b535-a1a6684cff3b/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-10-29 05:21:41,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:21:41,919 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:21:42,036 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_01e2d72c-9982-4757-b535-a1a6684cff3b/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl4.cil-1.c[48581,48594] [2021-10-29 05:21:42,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:21:42,059 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:21:42,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42 WrapperNode [2021-10-29 05:21:42,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:21:42,061 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:21:42,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:21:42,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:21:42,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42" (1/1) ... [2021-10-29 05:21:42,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42" (1/1) ... [2021-10-29 05:21:42,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:21:42,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:21:42,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:21:42,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:21:42,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42" (1/1) ... [2021-10-29 05:21:42,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42" (1/1) ... [2021-10-29 05:21:42,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42" (1/1) ... [2021-10-29 05:21:42,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42" (1/1) ... [2021-10-29 05:21:42,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42" (1/1) ... [2021-10-29 05:21:42,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42" (1/1) ... [2021-10-29 05:21:42,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42" (1/1) ... [2021-10-29 05:21:42,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:21:42,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:21:42,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:21:42,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:21:42,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42" (1/1) ... [2021-10-29 05:21:42,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:21:42,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:21:42,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:21:42,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:21:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:21:42,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:21:42,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:21:42,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:21:42,817 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,860 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,874 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,883 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,884 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,886 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,899 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,906 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,911 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,915 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,916 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,923 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,926 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,930 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,932 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,933 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,936 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,938 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,938 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,939 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,941 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,943 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,947 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,949 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,951 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,954 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,957 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,958 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,959 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:42,962 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:21:44,649 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##658: assume !false; [2021-10-29 05:21:44,649 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##657: assume false; [2021-10-29 05:21:44,650 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##665: assume !false; [2021-10-29 05:21:44,650 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##664: assume false; [2021-10-29 05:21:44,650 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##683: assume false; [2021-10-29 05:21:44,650 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##684: assume !false; [2021-10-29 05:21:44,650 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##609: assume false; [2021-10-29 05:21:44,651 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##610: assume !false; [2021-10-29 05:21:44,651 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##639: assume false; [2021-10-29 05:21:44,651 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##640: assume !false; [2021-10-29 05:21:44,651 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-10-29 05:21:44,651 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-10-29 05:21:44,652 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2021-10-29 05:21:44,652 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2021-10-29 05:21:44,652 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume !false; [2021-10-29 05:21:44,652 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##284: assume false; [2021-10-29 05:21:44,652 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##229: assume !false; [2021-10-29 05:21:44,652 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume false; [2021-10-29 05:21:44,653 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2021-10-29 05:21:44,653 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2021-10-29 05:21:44,653 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##369: assume !false; [2021-10-29 05:21:44,653 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##375: assume !false; [2021-10-29 05:21:44,654 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##374: assume false; [2021-10-29 05:21:44,654 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2021-10-29 05:21:44,654 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2021-10-29 05:21:44,654 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##357: assume false; [2021-10-29 05:21:44,654 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##358: assume !false; [2021-10-29 05:21:44,655 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##368: assume false; [2021-10-29 05:21:44,655 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##404: assume !false; [2021-10-29 05:21:44,655 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##403: assume false; [2021-10-29 05:21:44,655 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##427: assume !false; [2021-10-29 05:21:44,655 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##426: assume false; [2021-10-29 05:21:44,656 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##436: assume !false; [2021-10-29 05:21:44,656 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##435: assume false; [2021-10-29 05:21:44,656 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##439: assume false; [2021-10-29 05:21:44,656 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##440: assume !false; [2021-10-29 05:21:44,656 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2021-10-29 05:21:44,657 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2021-10-29 05:21:44,657 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##485: assume !false; [2021-10-29 05:21:44,657 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##484: assume false; [2021-10-29 05:21:44,657 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##524: assume !false; [2021-10-29 05:21:44,657 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##523: assume false; [2021-10-29 05:21:44,658 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##558: assume !false; [2021-10-29 05:21:44,658 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##557: assume false; [2021-10-29 05:21:44,658 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##187: assume !false; [2021-10-29 05:21:44,658 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##186: assume false; [2021-10-29 05:21:44,658 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##68: assume !false; [2021-10-29 05:21:44,659 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##67: assume false; [2021-10-29 05:21:44,659 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##144: assume false; [2021-10-29 05:21:44,659 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##145: assume !false; [2021-10-29 05:21:44,659 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-10-29 05:21:44,659 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-10-29 05:21:44,660 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##154: assume !false; [2021-10-29 05:21:44,660 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##153: assume false; [2021-10-29 05:21:44,660 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##158: assume !false; [2021-10-29 05:21:44,660 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##157: assume false; [2021-10-29 05:21:44,660 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##588: assume !false; [2021-10-29 05:21:44,660 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##587: assume false; [2021-10-29 05:21:44,661 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##106: assume !false; [2021-10-29 05:21:44,661 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##105: assume false; [2021-10-29 05:21:44,678 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:21:44,691 INFO L299 CfgBuilder]: Removed 277 assume(true) statements. [2021-10-29 05:21:44,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:21:44 BoogieIcfgContainer [2021-10-29 05:21:44,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:21:44,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:21:44,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:21:44,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:21:44,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:21:41" (1/3) ... [2021-10-29 05:21:44,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1d455c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:21:44, skipping insertion in model container [2021-10-29 05:21:44,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:21:42" (2/3) ... [2021-10-29 05:21:44,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1d455c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:21:44, skipping insertion in model container [2021-10-29 05:21:44,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:21:44" (3/3) ... [2021-10-29 05:21:44,714 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2021-10-29 05:21:44,720 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:21:44,720 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2021-10-29 05:21:44,803 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:21:44,809 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 [2021-10-29 05:21:44,810 INFO L340 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2021-10-29 05:21:44,856 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) [2021-10-29 05:21:44,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:21:44,863 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:44,864 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:44,865 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)] === [2021-10-29 05:21:44,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:44,871 INFO L85 PathProgramCache]: Analyzing trace with hash -570890686, now seen corresponding path program 1 times [2021-10-29 05:21:44,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:44,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576866974] [2021-10-29 05:21:44,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:44,887 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:44,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:44,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:44,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:21:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:45,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:21:45,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:45,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:45,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:45,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:45,205 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:45,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576866974] [2021-10-29 05:21:45,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [576866974] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:45,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:45,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:21:45,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188983827] [2021-10-29 05:21:45,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:21:45,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:45,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:21:45,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:45,246 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) [2021-10-29 05:21:45,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:45,406 INFO L93 Difference]: Finished difference Result 574 states and 773 transitions. [2021-10-29 05:21:45,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:21:45,409 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 [2021-10-29 05:21:45,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:45,429 INFO L225 Difference]: With dead ends: 574 [2021-10-29 05:21:45,430 INFO L226 Difference]: Without dead ends: 572 [2021-10-29 05:21:45,431 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:21:45,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2021-10-29 05:21:45,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 571. [2021-10-29 05:21:45,528 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) [2021-10-29 05:21:45,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 770 transitions. [2021-10-29 05:21:45,550 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 770 transitions. Word has length 7 [2021-10-29 05:21:45,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:45,551 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 770 transitions. [2021-10-29 05:21:45,551 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) [2021-10-29 05:21:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 770 transitions. [2021-10-29 05:21:45,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:21:45,552 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:45,552 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:45,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-29 05:21:45,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:45,757 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)] === [2021-10-29 05:21:45,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:45,758 INFO L85 PathProgramCache]: Analyzing trace with hash 538056098, now seen corresponding path program 1 times [2021-10-29 05:21:45,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:45,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090715336] [2021-10-29 05:21:45,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:45,759 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:45,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:45,765 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:45,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:21:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:45,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:21:45,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:45,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:45,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:46,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:46,001 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:46,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090715336] [2021-10-29 05:21:46,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090715336] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:46,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:46,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:21:46,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969796091] [2021-10-29 05:21:46,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:46,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:46,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:46,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:46,006 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) [2021-10-29 05:21:46,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:46,374 INFO L93 Difference]: Finished difference Result 700 states and 950 transitions. [2021-10-29 05:21:46,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:46,375 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 [2021-10-29 05:21:46,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:46,381 INFO L225 Difference]: With dead ends: 700 [2021-10-29 05:21:46,381 INFO L226 Difference]: Without dead ends: 700 [2021-10-29 05:21:46,382 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:46,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-10-29 05:21:46,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 671. [2021-10-29 05:21:46,420 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) [2021-10-29 05:21:46,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 917 transitions. [2021-10-29 05:21:46,430 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 917 transitions. Word has length 10 [2021-10-29 05:21:46,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:46,430 INFO L470 AbstractCegarLoop]: Abstraction has 671 states and 917 transitions. [2021-10-29 05:21:46,430 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) [2021-10-29 05:21:46,430 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 917 transitions. [2021-10-29 05:21:46,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 05:21:46,431 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:46,431 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:46,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:46,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:46,632 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)] === [2021-10-29 05:21:46,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:46,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1720754753, now seen corresponding path program 1 times [2021-10-29 05:21:46,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:46,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661041342] [2021-10-29 05:21:46,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:46,634 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:46,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:46,638 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:46,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:21:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:46,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:21:46,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:46,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:46,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:46,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:46,868 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:46,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661041342] [2021-10-29 05:21:46,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661041342] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:46,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:46,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:21:46,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502561077] [2021-10-29 05:21:46,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:46,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:46,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:46,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:46,876 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) [2021-10-29 05:21:46,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:46,893 INFO L93 Difference]: Finished difference Result 670 states and 916 transitions. [2021-10-29 05:21:46,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:46,897 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 [2021-10-29 05:21:46,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:46,901 INFO L225 Difference]: With dead ends: 670 [2021-10-29 05:21:46,902 INFO L226 Difference]: Without dead ends: 666 [2021-10-29 05:21:46,903 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:46,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-10-29 05:21:46,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2021-10-29 05:21:46,926 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) [2021-10-29 05:21:46,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 904 transitions. [2021-10-29 05:21:46,934 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 904 transitions. Word has length 12 [2021-10-29 05:21:46,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:46,935 INFO L470 AbstractCegarLoop]: Abstraction has 666 states and 904 transitions. [2021-10-29 05:21:46,935 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) [2021-10-29 05:21:46,935 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 904 transitions. [2021-10-29 05:21:46,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 05:21:46,937 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:46,937 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:46,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:47,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:47,149 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)] === [2021-10-29 05:21:47,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:47,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1535696421, now seen corresponding path program 1 times [2021-10-29 05:21:47,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:47,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971445166] [2021-10-29 05:21:47,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:47,151 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:47,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:47,153 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:47,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:21:47,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:47,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:21:47,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:47,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:47,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:47,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:47,457 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:47,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971445166] [2021-10-29 05:21:47,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971445166] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:47,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:47,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:21:47,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759228496] [2021-10-29 05:21:47,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:47,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:47,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:47,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:47,462 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) [2021-10-29 05:21:47,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:47,515 INFO L93 Difference]: Finished difference Result 735 states and 990 transitions. [2021-10-29 05:21:47,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:47,515 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 [2021-10-29 05:21:47,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:47,520 INFO L225 Difference]: With dead ends: 735 [2021-10-29 05:21:47,521 INFO L226 Difference]: Without dead ends: 735 [2021-10-29 05:21:47,521 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:47,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-10-29 05:21:47,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 686. [2021-10-29 05:21:47,540 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) [2021-10-29 05:21:47,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 941 transitions. [2021-10-29 05:21:47,543 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 941 transitions. Word has length 16 [2021-10-29 05:21:47,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:47,544 INFO L470 AbstractCegarLoop]: Abstraction has 686 states and 941 transitions. [2021-10-29 05:21:47,544 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) [2021-10-29 05:21:47,544 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 941 transitions. [2021-10-29 05:21:47,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:21:47,546 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:47,546 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:47,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:47,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:47,768 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)] === [2021-10-29 05:21:47,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:47,769 INFO L85 PathProgramCache]: Analyzing trace with hash 107438083, now seen corresponding path program 1 times [2021-10-29 05:21:47,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:47,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1758266670] [2021-10-29 05:21:47,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:47,770 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:47,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:47,771 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:47,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:21:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:47,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:21:47,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:48,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:48,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:48,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:48,078 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:48,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1758266670] [2021-10-29 05:21:48,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1758266670] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:48,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:48,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:21:48,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039467257] [2021-10-29 05:21:48,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:48,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:48,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:48,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:48,082 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) [2021-10-29 05:21:48,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:48,360 INFO L93 Difference]: Finished difference Result 718 states and 981 transitions. [2021-10-29 05:21:48,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:48,364 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 [2021-10-29 05:21:48,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:48,369 INFO L225 Difference]: With dead ends: 718 [2021-10-29 05:21:48,369 INFO L226 Difference]: Without dead ends: 718 [2021-10-29 05:21:48,370 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:48,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2021-10-29 05:21:48,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 715. [2021-10-29 05:21:48,387 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) [2021-10-29 05:21:48,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 979 transitions. [2021-10-29 05:21:48,390 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 979 transitions. Word has length 19 [2021-10-29 05:21:48,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:48,390 INFO L470 AbstractCegarLoop]: Abstraction has 715 states and 979 transitions. [2021-10-29 05:21:48,391 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) [2021-10-29 05:21:48,391 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 979 transitions. [2021-10-29 05:21:48,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:21:48,393 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:48,393 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:48,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:48,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:48,607 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)] === [2021-10-29 05:21:48,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:48,608 INFO L85 PathProgramCache]: Analyzing trace with hash 98463890, now seen corresponding path program 1 times [2021-10-29 05:21:48,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:48,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333536515] [2021-10-29 05:21:48,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:48,609 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:48,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:48,610 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:48,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 05:21:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:48,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:21:48,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:48,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:48,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:48,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:48,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333536515] [2021-10-29 05:21:48,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333536515] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:48,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:48,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:21:48,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553855304] [2021-10-29 05:21:48,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:48,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:48,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:48,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:48,895 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) [2021-10-29 05:21:48,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:48,977 INFO L93 Difference]: Finished difference Result 858 states and 1169 transitions. [2021-10-29 05:21:48,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:48,978 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 [2021-10-29 05:21:48,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:48,983 INFO L225 Difference]: With dead ends: 858 [2021-10-29 05:21:48,983 INFO L226 Difference]: Without dead ends: 858 [2021-10-29 05:21:48,984 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:48,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2021-10-29 05:21:48,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 697. [2021-10-29 05:21:49,001 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) [2021-10-29 05:21:49,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 955 transitions. [2021-10-29 05:21:49,005 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 955 transitions. Word has length 19 [2021-10-29 05:21:49,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:49,005 INFO L470 AbstractCegarLoop]: Abstraction has 697 states and 955 transitions. [2021-10-29 05:21:49,005 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) [2021-10-29 05:21:49,006 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 955 transitions. [2021-10-29 05:21:49,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 05:21:49,007 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:49,007 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:49,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:49,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:49,220 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)] === [2021-10-29 05:21:49,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:49,221 INFO L85 PathProgramCache]: Analyzing trace with hash -946806949, now seen corresponding path program 1 times [2021-10-29 05:21:49,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:49,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639818604] [2021-10-29 05:21:49,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:49,222 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:49,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:49,223 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:49,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 05:21:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:49,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:21:49,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:49,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:49,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:49,694 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:49,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639818604] [2021-10-29 05:21:49,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639818604] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:49,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:49,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:21:49,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346473515] [2021-10-29 05:21:49,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:49,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:49,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:49,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:49,696 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) [2021-10-29 05:21:50,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:50,175 INFO L93 Difference]: Finished difference Result 863 states and 1165 transitions. [2021-10-29 05:21:50,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:50,176 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 [2021-10-29 05:21:50,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:50,182 INFO L225 Difference]: With dead ends: 863 [2021-10-29 05:21:50,182 INFO L226 Difference]: Without dead ends: 861 [2021-10-29 05:21:50,182 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:21:50,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2021-10-29 05:21:50,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 751. [2021-10-29 05:21:50,211 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) [2021-10-29 05:21:50,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1017 transitions. [2021-10-29 05:21:50,214 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1017 transitions. Word has length 20 [2021-10-29 05:21:50,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:50,215 INFO L470 AbstractCegarLoop]: Abstraction has 751 states and 1017 transitions. [2021-10-29 05:21:50,215 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) [2021-10-29 05:21:50,215 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1017 transitions. [2021-10-29 05:21:50,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 05:21:50,216 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:50,216 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:21:50,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:50,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:50,433 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)] === [2021-10-29 05:21:50,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:50,433 INFO L85 PathProgramCache]: Analyzing trace with hash 180793810, now seen corresponding path program 1 times [2021-10-29 05:21:50,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:50,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032984066] [2021-10-29 05:21:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:50,434 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:50,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:50,437 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:50,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 05:21:50,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:50,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:21:50,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:50,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:50,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:50,925 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:50,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032984066] [2021-10-29 05:21:50,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032984066] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:50,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:50,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:21:50,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553561958] [2021-10-29 05:21:50,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:50,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:50,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:50,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:50,932 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) [2021-10-29 05:21:51,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:51,374 INFO L93 Difference]: Finished difference Result 919 states and 1230 transitions. [2021-10-29 05:21:51,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:51,375 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 [2021-10-29 05:21:51,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:51,379 INFO L225 Difference]: With dead ends: 919 [2021-10-29 05:21:51,379 INFO L226 Difference]: Without dead ends: 917 [2021-10-29 05:21:51,380 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:21:51,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2021-10-29 05:21:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 800. [2021-10-29 05:21:51,399 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) [2021-10-29 05:21:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1073 transitions. [2021-10-29 05:21:51,402 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1073 transitions. Word has length 21 [2021-10-29 05:21:51,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:51,402 INFO L470 AbstractCegarLoop]: Abstraction has 800 states and 1073 transitions. [2021-10-29 05:21:51,403 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) [2021-10-29 05:21:51,403 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1073 transitions. [2021-10-29 05:21:51,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:21:51,404 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:51,404 INFO L513 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] [2021-10-29 05:21:51,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:51,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:51,617 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)] === [2021-10-29 05:21:51,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:51,617 INFO L85 PathProgramCache]: Analyzing trace with hash 945683314, now seen corresponding path program 1 times [2021-10-29 05:21:51,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:51,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355191015] [2021-10-29 05:21:51,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:51,618 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:51,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:51,620 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:51,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 05:21:51,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:51,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:21:51,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:51,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:51,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:52,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:52,021 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:52,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355191015] [2021-10-29 05:21:52,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355191015] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:52,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:52,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:21:52,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447122614] [2021-10-29 05:21:52,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:52,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:52,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:52,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:52,024 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) [2021-10-29 05:21:52,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:52,082 INFO L93 Difference]: Finished difference Result 810 states and 1082 transitions. [2021-10-29 05:21:52,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:52,083 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 [2021-10-29 05:21:52,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:52,088 INFO L225 Difference]: With dead ends: 810 [2021-10-29 05:21:52,089 INFO L226 Difference]: Without dead ends: 792 [2021-10-29 05:21:52,089 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:21:52,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2021-10-29 05:21:52,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2021-10-29 05:21:52,106 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) [2021-10-29 05:21:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1063 transitions. [2021-10-29 05:21:52,110 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1063 transitions. Word has length 22 [2021-10-29 05:21:52,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:52,111 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1063 transitions. [2021-10-29 05:21:52,111 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) [2021-10-29 05:21:52,111 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1063 transitions. [2021-10-29 05:21:52,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 05:21:52,112 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:52,112 INFO L513 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] [2021-10-29 05:21:52,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:52,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:52,326 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)] === [2021-10-29 05:21:52,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:52,326 INFO L85 PathProgramCache]: Analyzing trace with hash 2136813194, now seen corresponding path program 1 times [2021-10-29 05:21:52,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:52,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744568331] [2021-10-29 05:21:52,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:52,327 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:52,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:52,328 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:52,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 05:21:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:52,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:21:52,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:52,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:52,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:52,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:52,698 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:52,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744568331] [2021-10-29 05:21:52,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744568331] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:52,698 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:52,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:21:52,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528746877] [2021-10-29 05:21:52,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:52,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:52,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:52,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:52,702 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) [2021-10-29 05:21:52,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:52,943 INFO L93 Difference]: Finished difference Result 776 states and 1046 transitions. [2021-10-29 05:21:52,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:52,944 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 [2021-10-29 05:21:52,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:52,948 INFO L225 Difference]: With dead ends: 776 [2021-10-29 05:21:52,948 INFO L226 Difference]: Without dead ends: 776 [2021-10-29 05:21:52,949 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:52,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2021-10-29 05:21:52,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 776. [2021-10-29 05:21:52,965 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) [2021-10-29 05:21:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1046 transitions. [2021-10-29 05:21:52,977 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1046 transitions. Word has length 23 [2021-10-29 05:21:52,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:52,977 INFO L470 AbstractCegarLoop]: Abstraction has 776 states and 1046 transitions. [2021-10-29 05:21:52,977 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) [2021-10-29 05:21:52,977 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1046 transitions. [2021-10-29 05:21:52,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 05:21:52,979 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:52,979 INFO L513 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] [2021-10-29 05:21:52,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:53,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:53,192 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)] === [2021-10-29 05:21:53,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:53,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1371761021, now seen corresponding path program 1 times [2021-10-29 05:21:53,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:53,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027688044] [2021-10-29 05:21:53,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:53,193 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:53,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:53,194 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:53,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 05:21:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:53,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:21:53,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:53,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:53,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:53,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:53,547 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:53,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027688044] [2021-10-29 05:21:53,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2027688044] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:53,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:53,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:21:53,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720771341] [2021-10-29 05:21:53,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:53,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:53,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:53,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:53,550 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) [2021-10-29 05:21:53,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:53,634 INFO L93 Difference]: Finished difference Result 912 states and 1188 transitions. [2021-10-29 05:21:53,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:21:53,635 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 [2021-10-29 05:21:53,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:53,640 INFO L225 Difference]: With dead ends: 912 [2021-10-29 05:21:53,641 INFO L226 Difference]: Without dead ends: 912 [2021-10-29 05:21:53,641 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:21:53,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2021-10-29 05:21:53,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 778. [2021-10-29 05:21:53,659 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) [2021-10-29 05:21:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1048 transitions. [2021-10-29 05:21:53,663 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1048 transitions. Word has length 25 [2021-10-29 05:21:53,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:53,663 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1048 transitions. [2021-10-29 05:21:53,663 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) [2021-10-29 05:21:53,664 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1048 transitions. [2021-10-29 05:21:53,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 05:21:53,665 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:53,665 INFO L513 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] [2021-10-29 05:21:53,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:53,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:53,878 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)] === [2021-10-29 05:21:53,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:53,879 INFO L85 PathProgramCache]: Analyzing trace with hash 458344375, now seen corresponding path program 1 times [2021-10-29 05:21:53,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:53,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1912511554] [2021-10-29 05:21:53,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:53,879 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:53,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:53,880 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:53,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-29 05:21:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:54,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:21:54,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:54,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:54,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:54,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:54,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:54,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1912511554] [2021-10-29 05:21:54,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1912511554] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:54,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:54,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:21:54,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236458427] [2021-10-29 05:21:54,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:54,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:54,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:54,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:54,283 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) [2021-10-29 05:21:54,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:54,362 INFO L93 Difference]: Finished difference Result 789 states and 1058 transitions. [2021-10-29 05:21:54,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:54,363 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 [2021-10-29 05:21:54,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:54,368 INFO L225 Difference]: With dead ends: 789 [2021-10-29 05:21:54,368 INFO L226 Difference]: Without dead ends: 776 [2021-10-29 05:21:54,368 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:21:54,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2021-10-29 05:21:54,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 776. [2021-10-29 05:21:54,384 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) [2021-10-29 05:21:54,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1045 transitions. [2021-10-29 05:21:54,388 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1045 transitions. Word has length 26 [2021-10-29 05:21:54,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:54,388 INFO L470 AbstractCegarLoop]: Abstraction has 776 states and 1045 transitions. [2021-10-29 05:21:54,388 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) [2021-10-29 05:21:54,389 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1045 transitions. [2021-10-29 05:21:54,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 05:21:54,390 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:54,390 INFO L513 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] [2021-10-29 05:21:54,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:54,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:54,604 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)] === [2021-10-29 05:21:54,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:54,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2044140679, now seen corresponding path program 1 times [2021-10-29 05:21:54,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:54,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997421915] [2021-10-29 05:21:54,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:54,607 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:54,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:54,609 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:54,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-29 05:21:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:54,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:21:54,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:54,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:54,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:55,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:55,034 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:55,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997421915] [2021-10-29 05:21:55,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997421915] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:55,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:55,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:21:55,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596240621] [2021-10-29 05:21:55,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:55,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:55,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:55,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:55,037 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) [2021-10-29 05:21:55,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:55,125 INFO L93 Difference]: Finished difference Result 837 states and 1107 transitions. [2021-10-29 05:21:55,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:21:55,126 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 [2021-10-29 05:21:55,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:55,131 INFO L225 Difference]: With dead ends: 837 [2021-10-29 05:21:55,131 INFO L226 Difference]: Without dead ends: 837 [2021-10-29 05:21:55,131 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:21:55,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2021-10-29 05:21:55,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 778. [2021-10-29 05:21:55,148 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) [2021-10-29 05:21:55,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1047 transitions. [2021-10-29 05:21:55,152 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1047 transitions. Word has length 27 [2021-10-29 05:21:55,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:55,152 INFO L470 AbstractCegarLoop]: Abstraction has 778 states and 1047 transitions. [2021-10-29 05:21:55,153 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) [2021-10-29 05:21:55,153 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1047 transitions. [2021-10-29 05:21:55,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 05:21:55,155 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:55,156 INFO L513 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] [2021-10-29 05:21:55,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:55,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:55,368 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)] === [2021-10-29 05:21:55,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:55,369 INFO L85 PathProgramCache]: Analyzing trace with hash -610986493, now seen corresponding path program 1 times [2021-10-29 05:21:55,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:55,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1171708966] [2021-10-29 05:21:55,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:55,370 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:55,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:55,371 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:55,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-29 05:21:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:55,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:21:55,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:55,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:55,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:55,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:55,737 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:55,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1171708966] [2021-10-29 05:21:55,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1171708966] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:55,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:55,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:21:55,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067043541] [2021-10-29 05:21:55,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:55,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:55,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:55,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:55,742 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) [2021-10-29 05:21:55,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:55,784 INFO L93 Difference]: Finished difference Result 782 states and 1038 transitions. [2021-10-29 05:21:55,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:55,785 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 [2021-10-29 05:21:55,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:55,789 INFO L225 Difference]: With dead ends: 782 [2021-10-29 05:21:55,790 INFO L226 Difference]: Without dead ends: 769 [2021-10-29 05:21:55,791 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:55,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2021-10-29 05:21:55,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 763. [2021-10-29 05:21:55,806 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) [2021-10-29 05:21:55,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1018 transitions. [2021-10-29 05:21:55,810 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1018 transitions. Word has length 27 [2021-10-29 05:21:55,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:55,810 INFO L470 AbstractCegarLoop]: Abstraction has 763 states and 1018 transitions. [2021-10-29 05:21:55,810 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) [2021-10-29 05:21:55,811 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1018 transitions. [2021-10-29 05:21:55,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 05:21:55,812 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:55,812 INFO L513 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] [2021-10-29 05:21:55,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-10-29 05:21:56,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:56,025 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)] === [2021-10-29 05:21:56,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:56,025 INFO L85 PathProgramCache]: Analyzing trace with hash 830792837, now seen corresponding path program 1 times [2021-10-29 05:21:56,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:56,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652937387] [2021-10-29 05:21:56,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:56,026 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:56,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:56,027 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:56,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-29 05:21:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:56,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:21:56,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:56,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:56,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:56,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:56,622 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:56,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652937387] [2021-10-29 05:21:56,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [652937387] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:56,622 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:56,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:21:56,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268406812] [2021-10-29 05:21:56,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:56,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:56,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:56,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:56,624 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) [2021-10-29 05:21:57,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:57,036 INFO L93 Difference]: Finished difference Result 886 states and 1159 transitions. [2021-10-29 05:21:57,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:57,037 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 [2021-10-29 05:21:57,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:57,043 INFO L225 Difference]: With dead ends: 886 [2021-10-29 05:21:57,043 INFO L226 Difference]: Without dead ends: 886 [2021-10-29 05:21:57,043 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:21:57,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-10-29 05:21:57,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 764. [2021-10-29 05:21:57,060 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) [2021-10-29 05:21:57,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1009 transitions. [2021-10-29 05:21:57,064 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1009 transitions. Word has length 28 [2021-10-29 05:21:57,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:57,064 INFO L470 AbstractCegarLoop]: Abstraction has 764 states and 1009 transitions. [2021-10-29 05:21:57,064 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) [2021-10-29 05:21:57,065 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1009 transitions. [2021-10-29 05:21:57,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 05:21:57,066 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:57,066 INFO L513 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] [2021-10-29 05:21:57,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:57,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:57,284 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)] === [2021-10-29 05:21:57,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:57,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1706944907, now seen corresponding path program 1 times [2021-10-29 05:21:57,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:57,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [380391011] [2021-10-29 05:21:57,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:57,285 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:57,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:57,286 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:57,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-29 05:21:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:57,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:21:57,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:57,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:57,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:57,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:57,711 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:57,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [380391011] [2021-10-29 05:21:57,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [380391011] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:57,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:57,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:21:57,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255810473] [2021-10-29 05:21:57,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:21:57,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:57,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:21:57,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:21:57,713 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) [2021-10-29 05:21:57,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:57,775 INFO L93 Difference]: Finished difference Result 775 states and 1019 transitions. [2021-10-29 05:21:57,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:21:57,776 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 [2021-10-29 05:21:57,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:57,780 INFO L225 Difference]: With dead ends: 775 [2021-10-29 05:21:57,781 INFO L226 Difference]: Without dead ends: 762 [2021-10-29 05:21:57,781 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:21:57,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2021-10-29 05:21:57,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 762. [2021-10-29 05:21:57,795 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) [2021-10-29 05:21:57,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1006 transitions. [2021-10-29 05:21:57,799 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1006 transitions. Word has length 28 [2021-10-29 05:21:57,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:57,799 INFO L470 AbstractCegarLoop]: Abstraction has 762 states and 1006 transitions. [2021-10-29 05:21:57,800 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) [2021-10-29 05:21:57,800 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1006 transitions. [2021-10-29 05:21:57,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 05:21:57,802 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:57,802 INFO L513 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] [2021-10-29 05:21:57,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:58,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:58,019 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)] === [2021-10-29 05:21:58,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:58,019 INFO L85 PathProgramCache]: Analyzing trace with hash -879074465, now seen corresponding path program 1 times [2021-10-29 05:21:58,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:58,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268772682] [2021-10-29 05:21:58,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:58,019 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:58,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:58,020 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:58,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-29 05:21:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:58,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:21:58,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:58,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:58,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:58,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:58,510 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:58,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268772682] [2021-10-29 05:21:58,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268772682] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:58,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:58,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:21:58,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255525833] [2021-10-29 05:21:58,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:21:58,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:58,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:21:58,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:21:58,513 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) [2021-10-29 05:21:58,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:58,694 INFO L93 Difference]: Finished difference Result 790 states and 1032 transitions. [2021-10-29 05:21:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:21:58,695 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 [2021-10-29 05:21:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:58,700 INFO L225 Difference]: With dead ends: 790 [2021-10-29 05:21:58,700 INFO L226 Difference]: Without dead ends: 752 [2021-10-29 05:21:58,701 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:21:58,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2021-10-29 05:21:58,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2021-10-29 05:21:58,718 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) [2021-10-29 05:21:58,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 979 transitions. [2021-10-29 05:21:58,721 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 979 transitions. Word has length 31 [2021-10-29 05:21:58,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:58,722 INFO L470 AbstractCegarLoop]: Abstraction has 752 states and 979 transitions. [2021-10-29 05:21:58,723 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) [2021-10-29 05:21:58,723 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 979 transitions. [2021-10-29 05:21:58,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 05:21:58,725 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:58,725 INFO L513 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] [2021-10-29 05:21:58,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-10-29 05:21:58,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:58,939 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)] === [2021-10-29 05:21:58,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:58,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1700782205, now seen corresponding path program 1 times [2021-10-29 05:21:58,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:58,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1423397090] [2021-10-29 05:21:58,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:58,941 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:58,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:58,942 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:58,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-29 05:21:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:21:59,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:21:59,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:21:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:59,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:21:59,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:21:59,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:21:59,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1423397090] [2021-10-29 05:21:59,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1423397090] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:21:59,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:21:59,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:21:59,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410030803] [2021-10-29 05:21:59,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:21:59,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:21:59,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:21:59,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:59,402 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) [2021-10-29 05:21:59,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:21:59,658 INFO L93 Difference]: Finished difference Result 754 states and 982 transitions. [2021-10-29 05:21:59,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:21:59,659 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 [2021-10-29 05:21:59,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:21:59,663 INFO L225 Difference]: With dead ends: 754 [2021-10-29 05:21:59,664 INFO L226 Difference]: Without dead ends: 754 [2021-10-29 05:21:59,664 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:21:59,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2021-10-29 05:21:59,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2021-10-29 05:21:59,679 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) [2021-10-29 05:21:59,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 982 transitions. [2021-10-29 05:21:59,682 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 982 transitions. Word has length 31 [2021-10-29 05:21:59,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:21:59,684 INFO L470 AbstractCegarLoop]: Abstraction has 754 states and 982 transitions. [2021-10-29 05:21:59,685 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) [2021-10-29 05:21:59,685 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 982 transitions. [2021-10-29 05:21:59,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 05:21:59,686 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:21:59,686 INFO L513 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] [2021-10-29 05:21:59,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-29 05:21:59,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:21:59,905 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)] === [2021-10-29 05:21:59,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:21:59,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1153413219, now seen corresponding path program 1 times [2021-10-29 05:21:59,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:21:59,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1971618180] [2021-10-29 05:21:59,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:21:59,906 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:21:59,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:21:59,907 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:21:59,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-29 05:22:00,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:00,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:22:00,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:00,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:00,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:00,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:00,495 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:00,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1971618180] [2021-10-29 05:22:00,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1971618180] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:00,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:00,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:22:00,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369657613] [2021-10-29 05:22:00,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:22:00,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:00,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:22:00,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:22:00,500 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) [2021-10-29 05:22:00,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:00,795 INFO L93 Difference]: Finished difference Result 704 states and 914 transitions. [2021-10-29 05:22:00,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:22:00,796 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 [2021-10-29 05:22:00,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:00,800 INFO L225 Difference]: With dead ends: 704 [2021-10-29 05:22:00,801 INFO L226 Difference]: Without dead ends: 704 [2021-10-29 05:22:00,801 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:22:00,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2021-10-29 05:22:00,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 702. [2021-10-29 05:22:00,815 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) [2021-10-29 05:22:00,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 913 transitions. [2021-10-29 05:22:00,818 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 913 transitions. Word has length 32 [2021-10-29 05:22:00,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:00,819 INFO L470 AbstractCegarLoop]: Abstraction has 702 states and 913 transitions. [2021-10-29 05:22:00,819 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) [2021-10-29 05:22:00,819 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 913 transitions. [2021-10-29 05:22:00,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 05:22:00,827 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:00,827 INFO L513 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] [2021-10-29 05:22:00,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:01,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:01,045 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)] === [2021-10-29 05:22:01,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:01,046 INFO L85 PathProgramCache]: Analyzing trace with hash -311747134, now seen corresponding path program 1 times [2021-10-29 05:22:01,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:01,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440953637] [2021-10-29 05:22:01,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:01,047 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:01,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:01,051 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:01,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-29 05:22:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:01,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:22:01,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:01,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:01,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:01,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:01,655 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:01,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440953637] [2021-10-29 05:22:01,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440953637] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:01,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:01,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-29 05:22:01,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585910849] [2021-10-29 05:22:01,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:22:01,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:01,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:22:01,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:22:01,657 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) [2021-10-29 05:22:01,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:01,771 INFO L93 Difference]: Finished difference Result 713 states and 923 transitions. [2021-10-29 05:22:01,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:22:01,772 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 [2021-10-29 05:22:01,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:01,776 INFO L225 Difference]: With dead ends: 713 [2021-10-29 05:22:01,776 INFO L226 Difference]: Without dead ends: 694 [2021-10-29 05:22:01,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2021-10-29 05:22:01,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2021-10-29 05:22:01,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2021-10-29 05:22:01,789 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) [2021-10-29 05:22:01,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 902 transitions. [2021-10-29 05:22:01,792 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 902 transitions. Word has length 32 [2021-10-29 05:22:01,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:01,792 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 902 transitions. [2021-10-29 05:22:01,793 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) [2021-10-29 05:22:01,793 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 902 transitions. [2021-10-29 05:22:01,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 05:22:01,794 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:01,794 INFO L513 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] [2021-10-29 05:22:01,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:02,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:02,008 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)] === [2021-10-29 05:22:02,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:02,009 INFO L85 PathProgramCache]: Analyzing trace with hash -909472821, now seen corresponding path program 1 times [2021-10-29 05:22:02,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:02,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236930256] [2021-10-29 05:22:02,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:02,009 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:02,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:02,010 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:02,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-29 05:22:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:02,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:22:02,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:02,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:02,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:02,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:02,507 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:02,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236930256] [2021-10-29 05:22:02,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236930256] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:02,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:02,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:22:02,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718490982] [2021-10-29 05:22:02,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:22:02,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:02,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:22:02,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:02,510 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) [2021-10-29 05:22:02,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:02,558 INFO L93 Difference]: Finished difference Result 670 states and 860 transitions. [2021-10-29 05:22:02,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:22:02,558 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 [2021-10-29 05:22:02,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:02,562 INFO L225 Difference]: With dead ends: 670 [2021-10-29 05:22:02,562 INFO L226 Difference]: Without dead ends: 670 [2021-10-29 05:22:02,563 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:02,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2021-10-29 05:22:02,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 654. [2021-10-29 05:22:02,575 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) [2021-10-29 05:22:02,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 844 transitions. [2021-10-29 05:22:02,577 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 844 transitions. Word has length 32 [2021-10-29 05:22:02,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:02,577 INFO L470 AbstractCegarLoop]: Abstraction has 654 states and 844 transitions. [2021-10-29 05:22:02,577 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) [2021-10-29 05:22:02,578 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 844 transitions. [2021-10-29 05:22:02,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:22:02,579 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:02,579 INFO L513 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] [2021-10-29 05:22:02,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:02,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:02,792 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)] === [2021-10-29 05:22:02,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:02,793 INFO L85 PathProgramCache]: Analyzing trace with hash -353842307, now seen corresponding path program 1 times [2021-10-29 05:22:02,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:02,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [879226690] [2021-10-29 05:22:02,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:02,793 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:02,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:02,794 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:02,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-29 05:22:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:03,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:22:03,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:03,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:03,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:03,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:03,327 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:03,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [879226690] [2021-10-29 05:22:03,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [879226690] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:03,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:03,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:22:03,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737748416] [2021-10-29 05:22:03,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:22:03,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:03,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:22:03,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:22:03,330 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) [2021-10-29 05:22:03,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:03,445 INFO L93 Difference]: Finished difference Result 751 states and 939 transitions. [2021-10-29 05:22:03,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:22:03,445 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 [2021-10-29 05:22:03,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:03,450 INFO L225 Difference]: With dead ends: 751 [2021-10-29 05:22:03,450 INFO L226 Difference]: Without dead ends: 751 [2021-10-29 05:22:03,450 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:22:03,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2021-10-29 05:22:03,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 657. [2021-10-29 05:22:03,462 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) [2021-10-29 05:22:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 847 transitions. [2021-10-29 05:22:03,464 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 847 transitions. Word has length 33 [2021-10-29 05:22:03,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:03,465 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 847 transitions. [2021-10-29 05:22:03,465 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) [2021-10-29 05:22:03,465 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 847 transitions. [2021-10-29 05:22:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:22:03,466 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:03,466 INFO L513 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] [2021-10-29 05:22:03,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:03,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:03,679 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)] === [2021-10-29 05:22:03,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:03,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1257835912, now seen corresponding path program 1 times [2021-10-29 05:22:03,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:03,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258255351] [2021-10-29 05:22:03,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:03,680 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:03,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:03,681 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:03,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-29 05:22:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:04,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:22:04,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:04,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:04,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:04,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:04,371 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:04,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258255351] [2021-10-29 05:22:04,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258255351] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:04,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:04,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:22:04,372 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317981054] [2021-10-29 05:22:04,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:22:04,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:04,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:22:04,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:22:04,374 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) [2021-10-29 05:22:04,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:04,553 INFO L93 Difference]: Finished difference Result 602 states and 766 transitions. [2021-10-29 05:22:04,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:22:04,554 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 [2021-10-29 05:22:04,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:04,557 INFO L225 Difference]: With dead ends: 602 [2021-10-29 05:22:04,557 INFO L226 Difference]: Without dead ends: 602 [2021-10-29 05:22:04,558 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:22:04,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2021-10-29 05:22:04,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2021-10-29 05:22:04,569 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) [2021-10-29 05:22:04,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 766 transitions. [2021-10-29 05:22:04,571 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 766 transitions. Word has length 33 [2021-10-29 05:22:04,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:04,571 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 766 transitions. [2021-10-29 05:22:04,572 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) [2021-10-29 05:22:04,572 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 766 transitions. [2021-10-29 05:22:04,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 05:22:04,573 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:04,573 INFO L513 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] [2021-10-29 05:22:04,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:04,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:04,787 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)] === [2021-10-29 05:22:04,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:04,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1740926462, now seen corresponding path program 1 times [2021-10-29 05:22:04,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:04,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [173387468] [2021-10-29 05:22:04,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:04,788 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:04,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:04,789 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:04,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-29 05:22:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:05,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:22:05,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:05,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:05,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:05,508 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:05,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [173387468] [2021-10-29 05:22:05,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [173387468] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:05,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:05,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2021-10-29 05:22:05,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435249747] [2021-10-29 05:22:05,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 05:22:05,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:05,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 05:22:05,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-29 05:22:05,511 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) [2021-10-29 05:22:06,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:06,099 INFO L93 Difference]: Finished difference Result 1072 states and 1349 transitions. [2021-10-29 05:22:06,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 05:22:06,099 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 [2021-10-29 05:22:06,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:06,104 INFO L225 Difference]: With dead ends: 1072 [2021-10-29 05:22:06,104 INFO L226 Difference]: Without dead ends: 1012 [2021-10-29 05:22:06,105 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-10-29 05:22:06,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2021-10-29 05:22:06,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 580. [2021-10-29 05:22:06,134 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) [2021-10-29 05:22:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 741 transitions. [2021-10-29 05:22:06,137 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 741 transitions. Word has length 34 [2021-10-29 05:22:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:06,137 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 741 transitions. [2021-10-29 05:22:06,137 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) [2021-10-29 05:22:06,138 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 741 transitions. [2021-10-29 05:22:06,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-29 05:22:06,139 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:06,139 INFO L513 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] [2021-10-29 05:22:06,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:06,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:06,351 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)] === [2021-10-29 05:22:06,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:06,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1333490113, now seen corresponding path program 1 times [2021-10-29 05:22:06,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:06,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967018963] [2021-10-29 05:22:06,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:06,352 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:06,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:06,364 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:06,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-29 05:22:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:06,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:22:06,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:06,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:06,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:07,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:07,032 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:07,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967018963] [2021-10-29 05:22:07,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967018963] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:07,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:07,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:22:07,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105461150] [2021-10-29 05:22:07,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:22:07,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:07,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:22:07,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:07,036 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) [2021-10-29 05:22:07,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:07,092 INFO L93 Difference]: Finished difference Result 562 states and 707 transitions. [2021-10-29 05:22:07,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:22:07,092 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 [2021-10-29 05:22:07,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:07,094 INFO L225 Difference]: With dead ends: 562 [2021-10-29 05:22:07,094 INFO L226 Difference]: Without dead ends: 562 [2021-10-29 05:22:07,095 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:22:07,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-10-29 05:22:07,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 546. [2021-10-29 05:22:07,103 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) [2021-10-29 05:22:07,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 691 transitions. [2021-10-29 05:22:07,105 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 691 transitions. Word has length 35 [2021-10-29 05:22:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:07,105 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 691 transitions. [2021-10-29 05:22:07,105 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) [2021-10-29 05:22:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 691 transitions. [2021-10-29 05:22:07,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-29 05:22:07,107 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:07,107 INFO L513 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] [2021-10-29 05:22:07,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:07,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:07,320 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)] === [2021-10-29 05:22:07,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:07,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1624718873, now seen corresponding path program 1 times [2021-10-29 05:22:07,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:07,321 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236267970] [2021-10-29 05:22:07,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:07,321 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:07,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:07,322 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:07,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-29 05:22:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:07,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:22:07,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:08,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:08,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:08,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:08,160 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:08,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236267970] [2021-10-29 05:22:08,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236267970] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:08,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:08,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:22:08,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779223718] [2021-10-29 05:22:08,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:22:08,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:08,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:22:08,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:22:08,163 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) [2021-10-29 05:22:08,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:08,368 INFO L93 Difference]: Finished difference Result 546 states and 685 transitions. [2021-10-29 05:22:08,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:22:08,369 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 [2021-10-29 05:22:08,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:08,371 INFO L225 Difference]: With dead ends: 546 [2021-10-29 05:22:08,372 INFO L226 Difference]: Without dead ends: 546 [2021-10-29 05:22:08,372 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:22:08,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-10-29 05:22:08,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 546. [2021-10-29 05:22:08,381 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) [2021-10-29 05:22:08,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 685 transitions. [2021-10-29 05:22:08,384 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 685 transitions. Word has length 36 [2021-10-29 05:22:08,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:08,384 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 685 transitions. [2021-10-29 05:22:08,384 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) [2021-10-29 05:22:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 685 transitions. [2021-10-29 05:22:08,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-29 05:22:08,386 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:08,386 INFO L513 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] [2021-10-29 05:22:08,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:08,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:08,603 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)] === [2021-10-29 05:22:08,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:08,604 INFO L85 PathProgramCache]: Analyzing trace with hash -307255467, now seen corresponding path program 1 times [2021-10-29 05:22:08,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:08,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650113275] [2021-10-29 05:22:08,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:08,604 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:08,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:08,606 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:08,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-29 05:22:09,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:09,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:22:09,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:09,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:09,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:09,300 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:09,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650113275] [2021-10-29 05:22:09,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650113275] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:09,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:09,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-29 05:22:09,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416201052] [2021-10-29 05:22:09,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:22:09,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:09,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:22:09,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:22:09,302 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) [2021-10-29 05:22:09,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:09,532 INFO L93 Difference]: Finished difference Result 611 states and 748 transitions. [2021-10-29 05:22:09,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 05:22:09,533 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 [2021-10-29 05:22:09,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:09,536 INFO L225 Difference]: With dead ends: 611 [2021-10-29 05:22:09,537 INFO L226 Difference]: Without dead ends: 579 [2021-10-29 05:22:09,537 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2021-10-29 05:22:09,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2021-10-29 05:22:09,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 543. [2021-10-29 05:22:09,547 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) [2021-10-29 05:22:09,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 680 transitions. [2021-10-29 05:22:09,549 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 680 transitions. Word has length 37 [2021-10-29 05:22:09,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:09,550 INFO L470 AbstractCegarLoop]: Abstraction has 543 states and 680 transitions. [2021-10-29 05:22:09,550 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) [2021-10-29 05:22:09,550 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 680 transitions. [2021-10-29 05:22:09,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-29 05:22:09,551 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:09,552 INFO L513 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] [2021-10-29 05:22:09,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:09,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:09,759 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)] === [2021-10-29 05:22:09,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:09,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1515937655, now seen corresponding path program 1 times [2021-10-29 05:22:09,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:09,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166087891] [2021-10-29 05:22:09,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:09,761 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:09,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:09,762 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:09,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-29 05:22:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:10,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:22:10,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:10,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:10,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:10,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:10,450 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:10,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1166087891] [2021-10-29 05:22:10,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1166087891] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:10,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:10,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:22:10,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068906885] [2021-10-29 05:22:10,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:22:10,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:10,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:22:10,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:22:10,451 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) [2021-10-29 05:22:10,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:10,580 INFO L93 Difference]: Finished difference Result 570 states and 708 transitions. [2021-10-29 05:22:10,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:22:10,581 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 [2021-10-29 05:22:10,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:10,584 INFO L225 Difference]: With dead ends: 570 [2021-10-29 05:22:10,585 INFO L226 Difference]: Without dead ends: 553 [2021-10-29 05:22:10,585 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:22:10,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2021-10-29 05:22:10,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 540. [2021-10-29 05:22:10,595 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) [2021-10-29 05:22:10,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 674 transitions. [2021-10-29 05:22:10,597 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 674 transitions. Word has length 37 [2021-10-29 05:22:10,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:10,597 INFO L470 AbstractCegarLoop]: Abstraction has 540 states and 674 transitions. [2021-10-29 05:22:10,597 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) [2021-10-29 05:22:10,598 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 674 transitions. [2021-10-29 05:22:10,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 05:22:10,599 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:10,599 INFO L513 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] [2021-10-29 05:22:10,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:10,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:10,807 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)] === [2021-10-29 05:22:10,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:10,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1653529071, now seen corresponding path program 1 times [2021-10-29 05:22:10,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:10,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532303728] [2021-10-29 05:22:10,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:10,809 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:10,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:10,812 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:10,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-29 05:22:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:11,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:22:11,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:11,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:11,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:11,499 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:11,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532303728] [2021-10-29 05:22:11,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532303728] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:11,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:11,500 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:22:11,500 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352155351] [2021-10-29 05:22:11,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:22:11,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:11,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:22:11,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:22:11,502 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) [2021-10-29 05:22:11,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:11,548 INFO L93 Difference]: Finished difference Result 547 states and 678 transitions. [2021-10-29 05:22:11,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:22:11,550 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 [2021-10-29 05:22:11,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:11,552 INFO L225 Difference]: With dead ends: 547 [2021-10-29 05:22:11,553 INFO L226 Difference]: Without dead ends: 533 [2021-10-29 05:22:11,553 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:22:11,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2021-10-29 05:22:11,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 523. [2021-10-29 05:22:11,562 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) [2021-10-29 05:22:11,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 653 transitions. [2021-10-29 05:22:11,565 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 653 transitions. Word has length 39 [2021-10-29 05:22:11,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:11,565 INFO L470 AbstractCegarLoop]: Abstraction has 523 states and 653 transitions. [2021-10-29 05:22:11,565 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) [2021-10-29 05:22:11,565 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 653 transitions. [2021-10-29 05:22:11,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 05:22:11,569 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:11,570 INFO L513 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] [2021-10-29 05:22:11,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:11,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:11,776 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)] === [2021-10-29 05:22:11,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:11,776 INFO L85 PathProgramCache]: Analyzing trace with hash 2040251899, now seen corresponding path program 1 times [2021-10-29 05:22:11,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:11,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792290634] [2021-10-29 05:22:11,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:11,777 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:11,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:11,778 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:11,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-29 05:22:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:12,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:22:12,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:12,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:12,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:12,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:12,440 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:12,440 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792290634] [2021-10-29 05:22:12,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792290634] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:12,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:12,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:22:12,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502838663] [2021-10-29 05:22:12,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:22:12,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:12,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:22:12,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:12,442 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) [2021-10-29 05:22:12,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:12,467 INFO L93 Difference]: Finished difference Result 523 states and 649 transitions. [2021-10-29 05:22:12,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:22:12,468 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 [2021-10-29 05:22:12,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:12,470 INFO L225 Difference]: With dead ends: 523 [2021-10-29 05:22:12,470 INFO L226 Difference]: Without dead ends: 523 [2021-10-29 05:22:12,470 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:22:12,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2021-10-29 05:22:12,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 509. [2021-10-29 05:22:12,476 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) [2021-10-29 05:22:12,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 635 transitions. [2021-10-29 05:22:12,477 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 635 transitions. Word has length 39 [2021-10-29 05:22:12,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:12,477 INFO L470 AbstractCegarLoop]: Abstraction has 509 states and 635 transitions. [2021-10-29 05:22:12,478 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) [2021-10-29 05:22:12,478 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 635 transitions. [2021-10-29 05:22:12,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 05:22:12,478 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:12,479 INFO L513 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] [2021-10-29 05:22:12,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (31)] Ended with exit code 0 [2021-10-29 05:22:12,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:12,679 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)] === [2021-10-29 05:22:12,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:12,680 INFO L85 PathProgramCache]: Analyzing trace with hash -2061375645, now seen corresponding path program 1 times [2021-10-29 05:22:12,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:12,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366716667] [2021-10-29 05:22:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:12,680 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:12,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:12,681 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:12,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-29 05:22:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:13,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:22:13,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:13,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:13,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:13,512 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:13,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366716667] [2021-10-29 05:22:13,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366716667] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:13,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:13,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2021-10-29 05:22:13,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135743930] [2021-10-29 05:22:13,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 05:22:13,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:13,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 05:22:13,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-29 05:22:13,513 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) [2021-10-29 05:22:13,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:13,957 INFO L93 Difference]: Finished difference Result 774 states and 944 transitions. [2021-10-29 05:22:13,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-29 05:22:13,958 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 [2021-10-29 05:22:13,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:13,961 INFO L225 Difference]: With dead ends: 774 [2021-10-29 05:22:13,961 INFO L226 Difference]: Without dead ends: 737 [2021-10-29 05:22:13,961 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-10-29 05:22:13,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2021-10-29 05:22:13,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 495. [2021-10-29 05:22:13,967 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) [2021-10-29 05:22:13,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 618 transitions. [2021-10-29 05:22:13,969 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 618 transitions. Word has length 39 [2021-10-29 05:22:13,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:13,969 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 618 transitions. [2021-10-29 05:22:13,969 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) [2021-10-29 05:22:13,970 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 618 transitions. [2021-10-29 05:22:13,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 05:22:13,971 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:13,971 INFO L513 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] [2021-10-29 05:22:13,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:14,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:14,173 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)] === [2021-10-29 05:22:14,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:14,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1283627962, now seen corresponding path program 1 times [2021-10-29 05:22:14,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:14,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289578368] [2021-10-29 05:22:14,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:14,174 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:14,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:14,175 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:14,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-29 05:22:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:14,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:22:14,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:14,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:14,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:14,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:14,838 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:14,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289578368] [2021-10-29 05:22:14,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289578368] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:14,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:14,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:22:14,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883703938] [2021-10-29 05:22:14,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:22:14,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:14,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:22:14,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:14,841 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) [2021-10-29 05:22:14,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:14,978 INFO L93 Difference]: Finished difference Result 806 states and 979 transitions. [2021-10-29 05:22:14,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:22:14,978 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 [2021-10-29 05:22:14,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:14,981 INFO L225 Difference]: With dead ends: 806 [2021-10-29 05:22:14,982 INFO L226 Difference]: Without dead ends: 806 [2021-10-29 05:22:14,982 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:14,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2021-10-29 05:22:14,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 495. [2021-10-29 05:22:14,992 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) [2021-10-29 05:22:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 618 transitions. [2021-10-29 05:22:14,994 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 618 transitions. Word has length 39 [2021-10-29 05:22:14,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:14,994 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 618 transitions. [2021-10-29 05:22:14,995 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) [2021-10-29 05:22:14,995 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 618 transitions. [2021-10-29 05:22:14,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 05:22:14,996 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:14,996 INFO L513 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] [2021-10-29 05:22:15,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (33)] Ended with exit code 0 [2021-10-29 05:22:15,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:15,213 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)] === [2021-10-29 05:22:15,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:15,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1612268538, now seen corresponding path program 1 times [2021-10-29 05:22:15,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:15,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907704057] [2021-10-29 05:22:15,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:15,213 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:15,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:15,214 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:15,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-29 05:22:15,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:15,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:22:15,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:15,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:15,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:15,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:15,942 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:15,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907704057] [2021-10-29 05:22:15,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907704057] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:15,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:15,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:22:15,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434208109] [2021-10-29 05:22:15,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:22:15,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:15,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:22:15,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:22:15,944 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) [2021-10-29 05:22:15,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:15,979 INFO L93 Difference]: Finished difference Result 556 states and 691 transitions. [2021-10-29 05:22:15,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:22:15,979 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 [2021-10-29 05:22:15,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:15,983 INFO L225 Difference]: With dead ends: 556 [2021-10-29 05:22:15,983 INFO L226 Difference]: Without dead ends: 556 [2021-10-29 05:22:15,985 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:22:15,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2021-10-29 05:22:15,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 483. [2021-10-29 05:22:15,994 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) [2021-10-29 05:22:15,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 600 transitions. [2021-10-29 05:22:15,997 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 600 transitions. Word has length 39 [2021-10-29 05:22:15,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:15,997 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 600 transitions. [2021-10-29 05:22:15,997 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) [2021-10-29 05:22:15,998 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 600 transitions. [2021-10-29 05:22:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-29 05:22:15,999 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:15,999 INFO L513 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] [2021-10-29 05:22:16,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:16,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:16,215 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)] === [2021-10-29 05:22:16,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:16,216 INFO L85 PathProgramCache]: Analyzing trace with hash 160458813, now seen corresponding path program 1 times [2021-10-29 05:22:16,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:16,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709522592] [2021-10-29 05:22:16,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:16,217 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:16,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:16,218 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:16,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-29 05:22:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:16,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:22:16,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:17,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:17,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:17,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:17,134 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:17,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709522592] [2021-10-29 05:22:17,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709522592] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:17,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:17,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:22:17,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091722506] [2021-10-29 05:22:17,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:22:17,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:17,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:22:17,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:22:17,135 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) [2021-10-29 05:22:17,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:17,273 INFO L93 Difference]: Finished difference Result 659 states and 794 transitions. [2021-10-29 05:22:17,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:22:17,274 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 [2021-10-29 05:22:17,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:17,276 INFO L225 Difference]: With dead ends: 659 [2021-10-29 05:22:17,276 INFO L226 Difference]: Without dead ends: 659 [2021-10-29 05:22:17,277 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:22:17,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2021-10-29 05:22:17,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 483. [2021-10-29 05:22:17,284 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) [2021-10-29 05:22:17,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 596 transitions. [2021-10-29 05:22:17,285 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 596 transitions. Word has length 41 [2021-10-29 05:22:17,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:17,286 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 596 transitions. [2021-10-29 05:22:17,286 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) [2021-10-29 05:22:17,286 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 596 transitions. [2021-10-29 05:22:17,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-29 05:22:17,288 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:17,288 INFO L513 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] [2021-10-29 05:22:17,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:17,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:17,503 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)] === [2021-10-29 05:22:17,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:17,503 INFO L85 PathProgramCache]: Analyzing trace with hash -693628121, now seen corresponding path program 1 times [2021-10-29 05:22:17,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:17,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799032677] [2021-10-29 05:22:17,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:17,504 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:17,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:17,505 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:17,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-29 05:22:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:18,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:22:18,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:18,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:18,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:18,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799032677] [2021-10-29 05:22:18,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799032677] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:18,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:18,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:22:18,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357587374] [2021-10-29 05:22:18,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:22:18,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:18,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:22:18,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:22:18,276 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) [2021-10-29 05:22:18,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:18,335 INFO L93 Difference]: Finished difference Result 582 states and 706 transitions. [2021-10-29 05:22:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:22:18,335 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 [2021-10-29 05:22:18,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:18,337 INFO L225 Difference]: With dead ends: 582 [2021-10-29 05:22:18,337 INFO L226 Difference]: Without dead ends: 579 [2021-10-29 05:22:18,338 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:22:18,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2021-10-29 05:22:18,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 484. [2021-10-29 05:22:18,345 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) [2021-10-29 05:22:18,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 596 transitions. [2021-10-29 05:22:18,347 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 596 transitions. Word has length 42 [2021-10-29 05:22:18,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:18,347 INFO L470 AbstractCegarLoop]: Abstraction has 484 states and 596 transitions. [2021-10-29 05:22:18,347 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) [2021-10-29 05:22:18,348 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 596 transitions. [2021-10-29 05:22:18,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-10-29 05:22:18,349 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:18,349 INFO L513 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] [2021-10-29 05:22:18,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:18,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:18,555 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)] === [2021-10-29 05:22:18,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:18,556 INFO L85 PathProgramCache]: Analyzing trace with hash -81749273, now seen corresponding path program 1 times [2021-10-29 05:22:18,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:18,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1477522408] [2021-10-29 05:22:18,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:18,557 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:18,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:18,558 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:18,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-10-29 05:22:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:19,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:22:19,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:19,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:19,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:19,402 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:19,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1477522408] [2021-10-29 05:22:19,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1477522408] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:19,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:19,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-29 05:22:19,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293866465] [2021-10-29 05:22:19,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-29 05:22:19,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:19,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-29 05:22:19,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:22:19,404 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) [2021-10-29 05:22:19,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:19,524 INFO L93 Difference]: Finished difference Result 542 states and 654 transitions. [2021-10-29 05:22:19,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:22:19,525 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 [2021-10-29 05:22:19,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:19,527 INFO L225 Difference]: With dead ends: 542 [2021-10-29 05:22:19,527 INFO L226 Difference]: Without dead ends: 542 [2021-10-29 05:22:19,527 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-10-29 05:22:19,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2021-10-29 05:22:19,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 473. [2021-10-29 05:22:19,534 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) [2021-10-29 05:22:19,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 581 transitions. [2021-10-29 05:22:19,535 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 581 transitions. Word has length 42 [2021-10-29 05:22:19,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:19,536 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 581 transitions. [2021-10-29 05:22:19,536 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) [2021-10-29 05:22:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 581 transitions. [2021-10-29 05:22:19,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-29 05:22:19,538 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:19,538 INFO L513 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] [2021-10-29 05:22:19,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2021-10-29 05:22:19,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:19,753 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)] === [2021-10-29 05:22:19,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:19,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1579373080, now seen corresponding path program 1 times [2021-10-29 05:22:19,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:19,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642441571] [2021-10-29 05:22:19,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:19,754 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:19,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:19,754 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:19,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-10-29 05:22:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:20,338 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:22:20,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:20,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:20,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:20,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:20,778 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:20,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642441571] [2021-10-29 05:22:20,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642441571] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:20,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:20,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-10-29 05:22:20,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575289152] [2021-10-29 05:22:20,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-29 05:22:20,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:20,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-29 05:22:20,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:22:20,780 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) [2021-10-29 05:22:21,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:21,498 INFO L93 Difference]: Finished difference Result 752 states and 906 transitions. [2021-10-29 05:22:21,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-29 05:22:21,499 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 [2021-10-29 05:22:21,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:21,503 INFO L225 Difference]: With dead ends: 752 [2021-10-29 05:22:21,503 INFO L226 Difference]: Without dead ends: 574 [2021-10-29 05:22:21,503 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2021-10-29 05:22:21,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-10-29 05:22:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 363. [2021-10-29 05:22:21,511 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) [2021-10-29 05:22:21,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 448 transitions. [2021-10-29 05:22:21,512 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 448 transitions. Word has length 44 [2021-10-29 05:22:21,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:21,513 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 448 transitions. [2021-10-29 05:22:21,513 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) [2021-10-29 05:22:21,513 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 448 transitions. [2021-10-29 05:22:21,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-29 05:22:21,514 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:21,515 INFO L513 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] [2021-10-29 05:22:21,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:21,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:21,731 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)] === [2021-10-29 05:22:21,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:21,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1536215993, now seen corresponding path program 1 times [2021-10-29 05:22:21,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:21,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284983148] [2021-10-29 05:22:21,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:21,732 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:21,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:21,733 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:21,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-10-29 05:22:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:22,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:22:22,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:22,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:22,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:22,545 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:22,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284983148] [2021-10-29 05:22:22,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1284983148] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:22,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:22,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:22:22,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094790592] [2021-10-29 05:22:22,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:22:22,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:22,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:22:22,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:22:22,547 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) [2021-10-29 05:22:22,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:22,643 INFO L93 Difference]: Finished difference Result 637 states and 790 transitions. [2021-10-29 05:22:22,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:22:22,644 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 [2021-10-29 05:22:22,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:22,648 INFO L225 Difference]: With dead ends: 637 [2021-10-29 05:22:22,648 INFO L226 Difference]: Without dead ends: 637 [2021-10-29 05:22:22,648 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:22:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2021-10-29 05:22:22,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 363. [2021-10-29 05:22:22,655 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) [2021-10-29 05:22:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 447 transitions. [2021-10-29 05:22:22,656 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 447 transitions. Word has length 44 [2021-10-29 05:22:22,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:22,657 INFO L470 AbstractCegarLoop]: Abstraction has 363 states and 447 transitions. [2021-10-29 05:22:22,657 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) [2021-10-29 05:22:22,657 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 447 transitions. [2021-10-29 05:22:22,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-10-29 05:22:22,658 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:22,659 INFO L513 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] [2021-10-29 05:22:22,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:22,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:22,874 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)] === [2021-10-29 05:22:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:22,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1966977471, now seen corresponding path program 1 times [2021-10-29 05:22:22,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:22,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [316792592] [2021-10-29 05:22:22,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:22,875 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:22,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:22,876 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:22,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-10-29 05:22:23,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:23,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:22:23,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:23,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:23,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:23,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:23,852 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:23,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [316792592] [2021-10-29 05:22:23,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [316792592] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:23,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:23,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-10-29 05:22:23,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401038508] [2021-10-29 05:22:23,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-29 05:22:23,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:23,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-29 05:22:23,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-10-29 05:22:23,854 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) [2021-10-29 05:22:24,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:24,058 INFO L93 Difference]: Finished difference Result 416 states and 504 transitions. [2021-10-29 05:22:24,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 05:22:24,058 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 [2021-10-29 05:22:24,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:24,060 INFO L225 Difference]: With dead ends: 416 [2021-10-29 05:22:24,060 INFO L226 Difference]: Without dead ends: 366 [2021-10-29 05:22:24,061 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2021-10-29 05:22:24,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-10-29 05:22:24,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 323. [2021-10-29 05:22:24,067 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) [2021-10-29 05:22:24,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 395 transitions. [2021-10-29 05:22:24,068 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 395 transitions. Word has length 46 [2021-10-29 05:22:24,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:24,069 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 395 transitions. [2021-10-29 05:22:24,069 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) [2021-10-29 05:22:24,069 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 395 transitions. [2021-10-29 05:22:24,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-29 05:22:24,070 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:24,070 INFO L513 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] [2021-10-29 05:22:24,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (40)] Ended with exit code 0 [2021-10-29 05:22:24,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:24,283 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)] === [2021-10-29 05:22:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:24,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1259536918, now seen corresponding path program 1 times [2021-10-29 05:22:24,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:24,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1371244134] [2021-10-29 05:22:24,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:24,284 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:24,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:24,285 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:24,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-10-29 05:22:24,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:24,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:22:24,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:25,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:25,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:25,127 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:25,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1371244134] [2021-10-29 05:22:25,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1371244134] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:25,127 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:25,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:22:25,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473890896] [2021-10-29 05:22:25,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:22:25,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:25,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:22:25,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:22:25,129 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) [2021-10-29 05:22:25,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:25,197 INFO L93 Difference]: Finished difference Result 285 states and 346 transitions. [2021-10-29 05:22:25,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:22:25,198 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 [2021-10-29 05:22:25,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:25,199 INFO L225 Difference]: With dead ends: 285 [2021-10-29 05:22:25,199 INFO L226 Difference]: Without dead ends: 285 [2021-10-29 05:22:25,199 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:22:25,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-10-29 05:22:25,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2021-10-29 05:22:25,204 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) [2021-10-29 05:22:25,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 346 transitions. [2021-10-29 05:22:25,205 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 346 transitions. Word has length 48 [2021-10-29 05:22:25,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:25,205 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 346 transitions. [2021-10-29 05:22:25,205 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) [2021-10-29 05:22:25,206 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 346 transitions. [2021-10-29 05:22:25,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-29 05:22:25,207 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:25,207 INFO L513 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] [2021-10-29 05:22:25,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:25,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:25,423 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)] === [2021-10-29 05:22:25,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:25,423 INFO L85 PathProgramCache]: Analyzing trace with hash -907841108, now seen corresponding path program 1 times [2021-10-29 05:22:25,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:25,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572365828] [2021-10-29 05:22:25,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:25,423 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:25,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:25,424 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:25,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-10-29 05:22:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:26,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:22:26,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:26,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:26,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:26,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:26,418 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:26,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1572365828] [2021-10-29 05:22:26,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1572365828] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:26,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:26,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-29 05:22:26,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648576408] [2021-10-29 05:22:26,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-29 05:22:26,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:26,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-29 05:22:26,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:22:26,420 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) [2021-10-29 05:22:27,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:27,026 INFO L93 Difference]: Finished difference Result 506 states and 608 transitions. [2021-10-29 05:22:27,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-29 05:22:27,027 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 [2021-10-29 05:22:27,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:27,028 INFO L225 Difference]: With dead ends: 506 [2021-10-29 05:22:27,029 INFO L226 Difference]: Without dead ends: 490 [2021-10-29 05:22:27,029 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=503, Unknown=0, NotChecked=0, Total=702 [2021-10-29 05:22:27,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-10-29 05:22:27,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 279. [2021-10-29 05:22:27,043 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) [2021-10-29 05:22:27,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 339 transitions. [2021-10-29 05:22:27,044 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 339 transitions. Word has length 55 [2021-10-29 05:22:27,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:27,044 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 339 transitions. [2021-10-29 05:22:27,044 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) [2021-10-29 05:22:27,045 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 339 transitions. [2021-10-29 05:22:27,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-29 05:22:27,046 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:27,046 INFO L513 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] [2021-10-29 05:22:27,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:27,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:27,263 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)] === [2021-10-29 05:22:27,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:27,263 INFO L85 PathProgramCache]: Analyzing trace with hash -2021036311, now seen corresponding path program 1 times [2021-10-29 05:22:27,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:27,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028450568] [2021-10-29 05:22:27,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:27,264 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:27,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:27,265 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:27,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-10-29 05:22:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:22:27,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:22:27,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:22:28,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:28,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:22:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:22:28,234 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:22:28,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028450568] [2021-10-29 05:22:28,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028450568] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:22:28,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:22:28,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:22:28,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974984776] [2021-10-29 05:22:28,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:22:28,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:22:28,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:22:28,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:28,236 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) [2021-10-29 05:22:28,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:22:28,261 INFO L93 Difference]: Finished difference Result 387 states and 472 transitions. [2021-10-29 05:22:28,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:22:28,261 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 [2021-10-29 05:22:28,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:22:28,262 INFO L225 Difference]: With dead ends: 387 [2021-10-29 05:22:28,262 INFO L226 Difference]: Without dead ends: 387 [2021-10-29 05:22:28,262 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:22:28,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-10-29 05:22:28,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 279. [2021-10-29 05:22:28,266 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) [2021-10-29 05:22:28,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 336 transitions. [2021-10-29 05:22:28,267 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 336 transitions. Word has length 57 [2021-10-29 05:22:28,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:22:28,267 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 336 transitions. [2021-10-29 05:22:28,267 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) [2021-10-29 05:22:28,268 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 336 transitions. [2021-10-29 05:22:28,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-29 05:22:28,269 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:22:28,269 INFO L513 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] [2021-10-29 05:22:28,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:28,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:28,478 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)] === [2021-10-29 05:22:28,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:22:28,478 INFO L85 PathProgramCache]: Analyzing trace with hash -576201386, now seen corresponding path program 1 times [2021-10-29 05:22:28,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:22:28,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459247269] [2021-10-29 05:22:28,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:22:28,479 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:22:28,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:22:28,480 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:22:28,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-10-29 05:22:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:22:29,209 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:22:29,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:22:29,475 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 05:22:29,476 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:22:29,477 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,479 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,480 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,481 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,482 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,483 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,484 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,485 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,486 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,486 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,486 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,486 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,487 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,487 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,487 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,487 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,488 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,489 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,490 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,490 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,490 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,490 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,490 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,491 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,491 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,491 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,491 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,492 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,492 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:22:29,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-10-29 05:22:29,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:22:29,712 INFO L731 BasicCegarLoop]: Path program 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] [2021-10-29 05:22:29,717 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:22:29,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:22:29 BoogieIcfgContainer [2021-10-29 05:22:29,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:22:29,895 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:22:29,895 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:22:29,895 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:22:29,896 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:21:44" (3/4) ... [2021-10-29 05:22:29,900 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:22:29,900 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:22:29,901 INFO L168 Benchmark]: Toolchain (without parser) took 48447.07 ms. Allocated memory was 54.5 MB in the beginning and 157.3 MB in the end (delta: 102.8 MB). Free memory was 30.7 MB in the beginning and 94.5 MB in the end (delta: -63.8 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:29,902 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 35.0 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:29,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 600.37 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 30.5 MB in the beginning and 42.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:29,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 219.93 ms. Allocated memory is still 71.3 MB. Free memory was 42.4 MB in the beginning and 46.8 MB in the end (delta: -4.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:29,903 INFO L168 Benchmark]: Boogie Preprocessor took 153.51 ms. Allocated memory is still 71.3 MB. Free memory was 46.8 MB in the beginning and 40.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:29,904 INFO L168 Benchmark]: RCFGBuilder took 2258.36 ms. Allocated memory was 71.3 MB in the beginning and 107.0 MB in the end (delta: 35.7 MB). Free memory was 40.2 MB in the beginning and 71.3 MB in the end (delta: -31.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:29,904 INFO L168 Benchmark]: TraceAbstraction took 45197.91 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 71.3 MB in the beginning and 95.6 MB in the end (delta: -24.3 MB). Peak memory consumption was 94.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:22:29,905 INFO L168 Benchmark]: Witness Printer took 4.99 ms. Allocated memory is still 157.3 MB. Free memory was 95.6 MB in the beginning and 94.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:22:29,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 54.5 MB. Free memory was 35.1 MB in the beginning and 35.0 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 600.37 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 30.5 MB in the beginning and 42.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 219.93 ms. Allocated memory is still 71.3 MB. Free memory was 42.4 MB in the beginning and 46.8 MB in the end (delta: -4.5 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 153.51 ms. Allocated memory is still 71.3 MB. Free memory was 46.8 MB in the beginning and 40.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2258.36 ms. Allocated memory was 71.3 MB in the beginning and 107.0 MB in the end (delta: 35.7 MB). Free memory was 40.2 MB in the beginning and 71.3 MB in the end (delta: -31.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 45197.91 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 71.3 MB in the beginning and 95.6 MB in the end (delta: -24.3 MB). Peak memory consumption was 94.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.99 ms. Allocated memory is still 157.3 MB. Free memory was 95.6 MB in the beginning and 94.5 MB in the end (delta: 1.0 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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: 44.9s, OverallIterations: 43, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 23395 SDtfs, 26973 SDslu, 54166 SDs, 0 SdLazy, 4765 SolverSat, 925 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2725 GetRequests, 2442 SyntacticMatches, 0 SemanticMatches, 283 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 2.4s Time, 0.0s 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, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 42 MinimizatonAttempts, 3237 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 9.4s 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 [2021-10-29 05:22:29,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01e2d72c-9982-4757-b535-a1a6684cff3b/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...