./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8 --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 80f2ff50c19fe4a3b45780d8d11b89e9a2800d57 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8 --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 80f2ff50c19fe4a3b45780d8d11b89e9a2800d57 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:52:26,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:52:26,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:52:26,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:52:26,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:52:26,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:52:26,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:52:26,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:52:26,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:52:26,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:52:26,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:52:26,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:52:26,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:52:26,205 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:52:26,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:52:26,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:52:26,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:52:26,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:52:26,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:52:26,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:52:26,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:52:26,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:52:26,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:52:26,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:52:26,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:52:26,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:52:26,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:52:26,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:52:26,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:52:26,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:52:26,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:52:26,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:52:26,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:52:26,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:52:26,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:52:26,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:52:26,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:52:26,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:52:26,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:52:26,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:52:26,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:52:26,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-13 07:52:26,273 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:52:26,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:52:26,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:52:26,275 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:52:26,275 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:52:26,276 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:52:26,276 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:52:26,277 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:52:26,277 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:52:26,278 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:52:26,278 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:52:26,278 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:52:26,279 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:52:26,279 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:52:26,280 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:52:26,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 07:52:26,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 07:52:26,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:52:26,282 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:52:26,282 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 07:52:26,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:52:26,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:52:26,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:52:26,284 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 07:52:26,284 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 07:52:26,285 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 07:52:26,285 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:52:26,285 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:52:26,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:52:26,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:52:26,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:52:26,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:52:26,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:52:26,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:52:26,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:52:26,287 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:52:26,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:52:26,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:52:26,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:52:26,288 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_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f2ff50c19fe4a3b45780d8d11b89e9a2800d57 [2021-10-13 07:52:26,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:52:26,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:52:26,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:52:26,594 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:52:26,597 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:52:26,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-13 07:52:26,673 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/data/f0b57e6fd/f3179f0f6928464baf3442310a12cd60/FLAG80df96770 [2021-10-13 07:52:27,201 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:52:27,204 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-13 07:52:27,216 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/data/f0b57e6fd/f3179f0f6928464baf3442310a12cd60/FLAG80df96770 [2021-10-13 07:52:27,520 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/data/f0b57e6fd/f3179f0f6928464baf3442310a12cd60 [2021-10-13 07:52:27,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:52:27,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:52:27,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:52:27,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:52:27,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:52:27,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@732e8c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27, skipping insertion in model container [2021-10-13 07:52:27,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:52:27,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:52:27,805 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_2ee3b857-32a8-486b-94ec-23af809366b4/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-13 07:52:27,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:52:27,942 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:52:27,959 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_2ee3b857-32a8-486b-94ec-23af809366b4/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-13 07:52:28,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:52:28,109 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:52:28,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28 WrapperNode [2021-10-13 07:52:28,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:52:28,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:52:28,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:52:28,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:52:28,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28" (1/1) ... [2021-10-13 07:52:28,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28" (1/1) ... [2021-10-13 07:52:28,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:52:28,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:52:28,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:52:28,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:52:28,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28" (1/1) ... [2021-10-13 07:52:28,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28" (1/1) ... [2021-10-13 07:52:28,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28" (1/1) ... [2021-10-13 07:52:28,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28" (1/1) ... [2021-10-13 07:52:28,342 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28" (1/1) ... [2021-10-13 07:52:28,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28" (1/1) ... [2021-10-13 07:52:28,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28" (1/1) ... [2021-10-13 07:52:28,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:52:28,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:52:28,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:52:28,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:52:28,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28" (1/1) ... [2021-10-13 07:52:28,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:52:28,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:52:28,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:52:28,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:52:28,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:52:28,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:52:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:52:28,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:52:28,691 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,698 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,707 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,713 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,728 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,749 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,753 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,758 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,761 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,762 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,769 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,773 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,775 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,776 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,786 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,789 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,800 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,804 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,814 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,816 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,822 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,829 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,830 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:28,832 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:29,719 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume !false; [2021-10-13 07:52:29,720 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##415: assume false; [2021-10-13 07:52:29,720 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2021-10-13 07:52:29,720 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume false; [2021-10-13 07:52:29,720 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##291: assume !false; [2021-10-13 07:52:29,720 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##490: assume !false; [2021-10-13 07:52:29,721 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##269: assume false; [2021-10-13 07:52:29,721 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume !false; [2021-10-13 07:52:29,721 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2021-10-13 07:52:29,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2021-10-13 07:52:29,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2021-10-13 07:52:29,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2021-10-13 07:52:29,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2021-10-13 07:52:29,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##470: assume false; [2021-10-13 07:52:29,722 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume false; [2021-10-13 07:52:29,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##471: assume !false; [2021-10-13 07:52:29,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##233: assume !false; [2021-10-13 07:52:29,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##242: assume !false; [2021-10-13 07:52:29,723 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume false; [2021-10-13 07:52:29,724 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##489: assume false; [2021-10-13 07:52:29,724 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume !false; [2021-10-13 07:52:29,724 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##245: assume false; [2021-10-13 07:52:29,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-13 07:52:29,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-13 07:52:29,725 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2021-10-13 07:52:29,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2021-10-13 07:52:29,726 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##175: assume !false; [2021-10-13 07:52:29,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume false; [2021-10-13 07:52:29,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2021-10-13 07:52:29,727 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2021-10-13 07:52:29,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2021-10-13 07:52:29,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2021-10-13 07:52:29,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume false; [2021-10-13 07:52:29,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2021-10-13 07:52:29,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2021-10-13 07:52:29,728 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume !false; [2021-10-13 07:52:29,729 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume false; [2021-10-13 07:52:29,729 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2021-10-13 07:52:29,729 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume !false; [2021-10-13 07:52:29,729 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2021-10-13 07:52:29,730 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2021-10-13 07:52:29,730 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2021-10-13 07:52:29,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2021-10-13 07:52:29,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2021-10-13 07:52:29,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2021-10-13 07:52:29,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2021-10-13 07:52:29,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##364: assume !false; [2021-10-13 07:52:29,731 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##363: assume false; [2021-10-13 07:52:30,655 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:52:30,655 INFO L299 CfgBuilder]: Removed 207 assume(true) statements. [2021-10-13 07:52:30,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:30 BoogieIcfgContainer [2021-10-13 07:52:30,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:52:30,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:52:30,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:52:30,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:52:30,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:52:27" (1/3) ... [2021-10-13 07:52:30,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8ab191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:30, skipping insertion in model container [2021-10-13 07:52:30,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:28" (2/3) ... [2021-10-13 07:52:30,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8ab191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:30, skipping insertion in model container [2021-10-13 07:52:30,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:30" (3/3) ... [2021-10-13 07:52:30,673 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2021-10-13 07:52:30,685 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:52:30,686 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-10-13 07:52:30,743 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:52:30,752 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, mConcurrency=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 [2021-10-13 07:52:30,752 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-10-13 07:52:30,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 259 states, 216 states have (on average 1.7824074074074074) internal successors, (385), 258 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:30,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 07:52:30,799 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:30,799 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 07:52:30,800 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:30,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:30,807 INFO L82 PathProgramCache]: Analyzing trace with hash 50472835, now seen corresponding path program 1 times [2021-10-13 07:52:30,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:30,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703267673] [2021-10-13 07:52:30,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:30,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:31,006 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:31,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703267673] [2021-10-13 07:52:31,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703267673] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:31,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:31,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:52:31,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232679562] [2021-10-13 07:52:31,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:31,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:31,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:31,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:31,032 INFO L87 Difference]: Start difference. First operand has 259 states, 216 states have (on average 1.7824074074074074) internal successors, (385), 258 states have internal predecessors, (385), 0 states have call successors, (0), 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) [2021-10-13 07:52:31,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:31,131 INFO L93 Difference]: Finished difference Result 259 states and 341 transitions. [2021-10-13 07:52:31,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:31,139 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 [2021-10-13 07:52:31,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:31,155 INFO L225 Difference]: With dead ends: 259 [2021-10-13 07:52:31,155 INFO L226 Difference]: Without dead ends: 258 [2021-10-13 07:52:31,157 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:31,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-10-13 07:52:31,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 258. [2021-10-13 07:52:31,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 216 states have (on average 1.5740740740740742) internal successors, (340), 257 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) [2021-10-13 07:52:31,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 340 transitions. [2021-10-13 07:52:31,246 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 340 transitions. Word has length 4 [2021-10-13 07:52:31,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:31,247 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 340 transitions. [2021-10-13 07:52:31,247 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) [2021-10-13 07:52:31,247 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 340 transitions. [2021-10-13 07:52:31,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:52:31,248 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:31,248 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:52:31,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:52:31,248 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:31,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:31,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1564663123, now seen corresponding path program 1 times [2021-10-13 07:52:31,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:31,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095800520] [2021-10-13 07:52:31,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:31,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:31,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:31,343 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:31,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095800520] [2021-10-13 07:52:31,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095800520] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:31,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:31,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 07:52:31,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039665062] [2021-10-13 07:52:31,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:31,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:31,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:31,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:31,349 INFO L87 Difference]: Start difference. First operand 258 states and 340 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:31,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:31,367 INFO L93 Difference]: Finished difference Result 257 states and 339 transitions. [2021-10-13 07:52:31,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:31,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-10-13 07:52:31,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:31,398 INFO L225 Difference]: With dead ends: 257 [2021-10-13 07:52:31,398 INFO L226 Difference]: Without dead ends: 255 [2021-10-13 07:52:31,399 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:31,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-13 07:52:31,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2021-10-13 07:52:31,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 214 states have (on average 1.5420560747663552) internal successors, (330), 254 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 330 transitions. [2021-10-13 07:52:31,417 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 330 transitions. Word has length 5 [2021-10-13 07:52:31,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:31,418 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 330 transitions. [2021-10-13 07:52:31,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:31,418 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 330 transitions. [2021-10-13 07:52:31,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 07:52:31,419 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:31,419 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:31,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:52:31,420 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:31,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:31,426 INFO L82 PathProgramCache]: Analyzing trace with hash 405694776, now seen corresponding path program 1 times [2021-10-13 07:52:31,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:31,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757000978] [2021-10-13 07:52:31,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:31,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:31,523 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:31,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757000978] [2021-10-13 07:52:31,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757000978] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:31,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:31,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:31,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289414573] [2021-10-13 07:52:31,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:31,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:31,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:31,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:31,528 INFO L87 Difference]: Start difference. First operand 255 states and 330 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:31,693 INFO L93 Difference]: Finished difference Result 259 states and 342 transitions. [2021-10-13 07:52:31,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:31,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 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 [2021-10-13 07:52:31,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:31,696 INFO L225 Difference]: With dead ends: 259 [2021-10-13 07:52:31,696 INFO L226 Difference]: Without dead ends: 259 [2021-10-13 07:52:31,697 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:31,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-10-13 07:52:31,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2021-10-13 07:52:31,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 230 states have (on average 1.4869565217391305) internal successors, (342), 258 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:31,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 342 transitions. [2021-10-13 07:52:31,715 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 342 transitions. Word has length 7 [2021-10-13 07:52:31,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:31,716 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 342 transitions. [2021-10-13 07:52:31,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:31,716 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 342 transitions. [2021-10-13 07:52:31,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:52:31,717 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:31,717 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:31,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:52:31,718 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:31,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:31,719 INFO L82 PathProgramCache]: Analyzing trace with hash -909885818, now seen corresponding path program 1 times [2021-10-13 07:52:31,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:31,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071551870] [2021-10-13 07:52:31,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:31,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:31,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:31,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:31,798 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:31,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071551870] [2021-10-13 07:52:31,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071551870] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:31,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:31,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:31,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589905745] [2021-10-13 07:52:31,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:31,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:31,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:31,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:31,805 INFO L87 Difference]: Start difference. First operand 259 states and 342 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-10-13 07:52:31,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:31,848 INFO L93 Difference]: Finished difference Result 336 states and 436 transitions. [2021-10-13 07:52:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:31,849 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 9 [2021-10-13 07:52:31,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:31,851 INFO L225 Difference]: With dead ends: 336 [2021-10-13 07:52:31,851 INFO L226 Difference]: Without dead ends: 336 [2021-10-13 07:52:31,853 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:31,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-10-13 07:52:31,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 247. [2021-10-13 07:52:31,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 226 states have (on average 1.4380530973451326) internal successors, (325), 246 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:31,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 325 transitions. [2021-10-13 07:52:31,864 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 325 transitions. Word has length 9 [2021-10-13 07:52:31,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:31,864 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 325 transitions. [2021-10-13 07:52:31,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-10-13 07:52:31,864 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 325 transitions. [2021-10-13 07:52:31,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:52:31,866 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:31,866 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:31,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 07:52:31,868 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:31,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:31,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1034398014, now seen corresponding path program 1 times [2021-10-13 07:52:31,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:31,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545410754] [2021-10-13 07:52:31,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:31,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:31,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:31,952 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:31,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545410754] [2021-10-13 07:52:31,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545410754] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:31,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:31,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:31,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623682527] [2021-10-13 07:52:31,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:31,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:31,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:31,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:31,954 INFO L87 Difference]: Start difference. First operand 247 states and 325 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:31,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:31,975 INFO L93 Difference]: Finished difference Result 284 states and 369 transitions. [2021-10-13 07:52:31,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:31,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 07:52:31,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:31,978 INFO L225 Difference]: With dead ends: 284 [2021-10-13 07:52:31,978 INFO L226 Difference]: Without dead ends: 284 [2021-10-13 07:52:31,978 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:31,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-10-13 07:52:31,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 271. [2021-10-13 07:52:31,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 251 states have (on average 1.4342629482071714) internal successors, (360), 270 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:31,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 360 transitions. [2021-10-13 07:52:31,986 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 360 transitions. Word has length 13 [2021-10-13 07:52:31,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:31,987 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 360 transitions. [2021-10-13 07:52:31,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:31,987 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 360 transitions. [2021-10-13 07:52:31,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 07:52:31,991 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:31,991 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:31,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 07:52:31,992 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:31,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:31,992 INFO L82 PathProgramCache]: Analyzing trace with hash -2001838400, now seen corresponding path program 1 times [2021-10-13 07:52:31,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:31,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813052512] [2021-10-13 07:52:31,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:31,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:32,089 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:32,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813052512] [2021-10-13 07:52:32,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813052512] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:32,091 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:32,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:52:32,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957807579] [2021-10-13 07:52:32,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:32,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:32,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:32,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:32,094 INFO L87 Difference]: Start difference. First operand 271 states and 360 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2021-10-13 07:52:32,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:32,121 INFO L93 Difference]: Finished difference Result 301 states and 386 transitions. [2021-10-13 07:52:32,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:52:32,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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 [2021-10-13 07:52:32,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:32,124 INFO L225 Difference]: With dead ends: 301 [2021-10-13 07:52:32,124 INFO L226 Difference]: Without dead ends: 301 [2021-10-13 07:52:32,124 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:32,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-10-13 07:52:32,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 258. [2021-10-13 07:52:32,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 238 states have (on average 1.4243697478991597) internal successors, (339), 257 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) [2021-10-13 07:52:32,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 339 transitions. [2021-10-13 07:52:32,134 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 339 transitions. Word has length 16 [2021-10-13 07:52:32,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:32,135 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 339 transitions. [2021-10-13 07:52:32,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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) [2021-10-13 07:52:32,135 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 339 transitions. [2021-10-13 07:52:32,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 07:52:32,141 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:32,141 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:32,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 07:52:32,142 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:32,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:32,142 INFO L82 PathProgramCache]: Analyzing trace with hash -1880136171, now seen corresponding path program 1 times [2021-10-13 07:52:32,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:32,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505616578] [2021-10-13 07:52:32,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:32,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:32,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:32,198 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:32,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505616578] [2021-10-13 07:52:32,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505616578] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:32,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:32,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:32,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746535695] [2021-10-13 07:52:32,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:32,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:32,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:32,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:32,200 INFO L87 Difference]: Start difference. First operand 258 states and 339 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) [2021-10-13 07:52:32,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:32,334 INFO L93 Difference]: Finished difference Result 284 states and 371 transitions. [2021-10-13 07:52:32,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:32,335 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 [2021-10-13 07:52:32,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:32,340 INFO L225 Difference]: With dead ends: 284 [2021-10-13 07:52:32,341 INFO L226 Difference]: Without dead ends: 284 [2021-10-13 07:52:32,341 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:32,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-10-13 07:52:32,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 281. [2021-10-13 07:52:32,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 261 states have (on average 1.4137931034482758) internal successors, (369), 280 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:32,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 369 transitions. [2021-10-13 07:52:32,352 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 369 transitions. Word has length 16 [2021-10-13 07:52:32,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:32,353 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 369 transitions. [2021-10-13 07:52:32,353 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) [2021-10-13 07:52:32,353 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 369 transitions. [2021-10-13 07:52:32,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 07:52:32,355 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:32,355 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:32,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 07:52:32,355 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:32,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:32,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1810210695, now seen corresponding path program 1 times [2021-10-13 07:52:32,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:32,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271862887] [2021-10-13 07:52:32,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:32,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:32,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:32,436 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:32,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271862887] [2021-10-13 07:52:32,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271862887] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:32,436 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:32,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:32,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828530673] [2021-10-13 07:52:32,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:32,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:32,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:32,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:32,438 INFO L87 Difference]: Start difference. First operand 281 states and 369 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) [2021-10-13 07:52:32,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:32,549 INFO L93 Difference]: Finished difference Result 278 states and 365 transitions. [2021-10-13 07:52:32,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:32,550 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 [2021-10-13 07:52:32,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:32,552 INFO L225 Difference]: With dead ends: 278 [2021-10-13 07:52:32,552 INFO L226 Difference]: Without dead ends: 278 [2021-10-13 07:52:32,552 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:32,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-10-13 07:52:32,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2021-10-13 07:52:32,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 260 states have (on average 1.4038461538461537) internal successors, (365), 277 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:32,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 365 transitions. [2021-10-13 07:52:32,560 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 365 transitions. Word has length 17 [2021-10-13 07:52:32,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:32,560 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 365 transitions. [2021-10-13 07:52:32,560 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) [2021-10-13 07:52:32,560 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 365 transitions. [2021-10-13 07:52:32,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 07:52:32,561 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:32,561 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:32,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 07:52:32,562 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:32,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:32,562 INFO L82 PathProgramCache]: Analyzing trace with hash 987908141, now seen corresponding path program 1 times [2021-10-13 07:52:32,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:32,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025105341] [2021-10-13 07:52:32,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:32,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:32,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:32,605 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:32,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025105341] [2021-10-13 07:52:32,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025105341] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:32,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:32,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:32,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325298832] [2021-10-13 07:52:32,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:32,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:32,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:32,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:32,607 INFO L87 Difference]: Start difference. First operand 278 states and 365 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) [2021-10-13 07:52:32,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:32,727 INFO L93 Difference]: Finished difference Result 266 states and 353 transitions. [2021-10-13 07:52:32,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:32,728 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 [2021-10-13 07:52:32,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:32,730 INFO L225 Difference]: With dead ends: 266 [2021-10-13 07:52:32,731 INFO L226 Difference]: Without dead ends: 266 [2021-10-13 07:52:32,731 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:32,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-13 07:52:32,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-13 07:52:32,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 254 states have (on average 1.389763779527559) internal successors, (353), 265 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:32,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 353 transitions. [2021-10-13 07:52:32,739 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 353 transitions. Word has length 17 [2021-10-13 07:52:32,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:32,739 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 353 transitions. [2021-10-13 07:52:32,740 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) [2021-10-13 07:52:32,740 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 353 transitions. [2021-10-13 07:52:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 07:52:32,741 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:32,741 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:32,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 07:52:32,741 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:32,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:32,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1862900048, now seen corresponding path program 1 times [2021-10-13 07:52:32,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:32,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348606393] [2021-10-13 07:52:32,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:32,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:32,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:32,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:32,830 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:32,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348606393] [2021-10-13 07:52:32,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348606393] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:32,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:32,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:32,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944724377] [2021-10-13 07:52:32,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:32,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:32,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:32,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:32,833 INFO L87 Difference]: Start difference. First operand 266 states and 353 transitions. Second operand has 4 states, 4 states have (on average 4.25) 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) [2021-10-13 07:52:32,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:32,950 INFO L93 Difference]: Finished difference Result 269 states and 353 transitions. [2021-10-13 07:52:32,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:32,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) 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 [2021-10-13 07:52:32,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:32,952 INFO L225 Difference]: With dead ends: 269 [2021-10-13 07:52:32,952 INFO L226 Difference]: Without dead ends: 269 [2021-10-13 07:52:32,953 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:32,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2021-10-13 07:52:32,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 266. [2021-10-13 07:52:32,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 254 states have (on average 1.3818897637795275) internal successors, (351), 265 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:32,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 351 transitions. [2021-10-13 07:52:32,962 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 351 transitions. Word has length 17 [2021-10-13 07:52:32,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:32,963 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 351 transitions. [2021-10-13 07:52:32,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) 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) [2021-10-13 07:52:32,963 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 351 transitions. [2021-10-13 07:52:32,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:52:32,964 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:32,964 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:32,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 07:52:32,965 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:32,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:32,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1028408025, now seen corresponding path program 1 times [2021-10-13 07:52:32,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:32,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021538194] [2021-10-13 07:52:32,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:32,967 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:33,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:33,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021538194] [2021-10-13 07:52:33,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021538194] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:33,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:33,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:33,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838161656] [2021-10-13 07:52:33,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:33,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:33,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:33,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:33,019 INFO L87 Difference]: Start difference. First operand 266 states and 351 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:33,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:33,038 INFO L93 Difference]: Finished difference Result 264 states and 338 transitions. [2021-10-13 07:52:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:33,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-10-13 07:52:33,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:33,041 INFO L225 Difference]: With dead ends: 264 [2021-10-13 07:52:33,041 INFO L226 Difference]: Without dead ends: 264 [2021-10-13 07:52:33,041 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:33,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-10-13 07:52:33,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 250. [2021-10-13 07:52:33,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 238 states have (on average 1.361344537815126) internal successors, (324), 249 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:33,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 324 transitions. [2021-10-13 07:52:33,047 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 324 transitions. Word has length 18 [2021-10-13 07:52:33,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:33,048 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 324 transitions. [2021-10-13 07:52:33,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:33,048 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 324 transitions. [2021-10-13 07:52:33,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:52:33,049 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:33,049 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:33,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 07:52:33,049 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:33,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:33,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1382364228, now seen corresponding path program 1 times [2021-10-13 07:52:33,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:33,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240411454] [2021-10-13 07:52:33,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:33,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:33,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:33,113 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:33,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240411454] [2021-10-13 07:52:33,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240411454] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:33,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:33,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:33,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951813454] [2021-10-13 07:52:33,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:33,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:33,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:33,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:33,116 INFO L87 Difference]: Start difference. First operand 250 states and 324 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:33,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:33,268 INFO L93 Difference]: Finished difference Result 253 states and 324 transitions. [2021-10-13 07:52:33,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:33,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 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 18 [2021-10-13 07:52:33,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:33,272 INFO L225 Difference]: With dead ends: 253 [2021-10-13 07:52:33,272 INFO L226 Difference]: Without dead ends: 253 [2021-10-13 07:52:33,273 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:33,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-10-13 07:52:33,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 250. [2021-10-13 07:52:33,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 238 states have (on average 1.3529411764705883) internal successors, (322), 249 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:33,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 322 transitions. [2021-10-13 07:52:33,279 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 322 transitions. Word has length 18 [2021-10-13 07:52:33,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:33,281 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 322 transitions. [2021-10-13 07:52:33,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:33,281 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 322 transitions. [2021-10-13 07:52:33,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 07:52:33,282 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:33,282 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:33,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 07:52:33,283 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:33,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:33,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1520196833, now seen corresponding path program 1 times [2021-10-13 07:52:33,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:33,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953944348] [2021-10-13 07:52:33,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:33,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:33,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:33,330 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:33,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953944348] [2021-10-13 07:52:33,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953944348] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:33,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:33,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:33,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551163965] [2021-10-13 07:52:33,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:33,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:33,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:33,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:33,332 INFO L87 Difference]: Start difference. First operand 250 states and 322 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) [2021-10-13 07:52:33,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:33,470 INFO L93 Difference]: Finished difference Result 316 states and 403 transitions. [2021-10-13 07:52:33,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:33,470 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 [2021-10-13 07:52:33,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:33,473 INFO L225 Difference]: With dead ends: 316 [2021-10-13 07:52:33,473 INFO L226 Difference]: Without dead ends: 316 [2021-10-13 07:52:33,473 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:33,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-10-13 07:52:33,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 258. [2021-10-13 07:52:33,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 246 states have (on average 1.3577235772357723) internal successors, (334), 257 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:33,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 334 transitions. [2021-10-13 07:52:33,480 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 334 transitions. Word has length 19 [2021-10-13 07:52:33,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:33,481 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 334 transitions. [2021-10-13 07:52:33,481 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) [2021-10-13 07:52:33,481 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 334 transitions. [2021-10-13 07:52:33,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 07:52:33,482 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:33,482 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:33,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 07:52:33,482 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:33,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:33,483 INFO L82 PathProgramCache]: Analyzing trace with hash -460339961, now seen corresponding path program 1 times [2021-10-13 07:52:33,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:33,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341146731] [2021-10-13 07:52:33,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:33,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:33,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:33,530 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:33,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341146731] [2021-10-13 07:52:33,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341146731] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:33,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:33,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:52:33,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192641017] [2021-10-13 07:52:33,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:33,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:33,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:33,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:33,532 INFO L87 Difference]: Start difference. First operand 258 states and 334 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) [2021-10-13 07:52:33,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:33,560 INFO L93 Difference]: Finished difference Result 269 states and 344 transitions. [2021-10-13 07:52:33,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:33,560 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 [2021-10-13 07:52:33,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:33,562 INFO L225 Difference]: With dead ends: 269 [2021-10-13 07:52:33,563 INFO L226 Difference]: Without dead ends: 256 [2021-10-13 07:52:33,564 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:33,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-13 07:52:33,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-10-13 07:52:33,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 244 states have (on average 1.3565573770491803) internal successors, (331), 255 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:33,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 331 transitions. [2021-10-13 07:52:33,571 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 331 transitions. Word has length 19 [2021-10-13 07:52:33,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:33,571 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 331 transitions. [2021-10-13 07:52:33,571 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) [2021-10-13 07:52:33,571 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 331 transitions. [2021-10-13 07:52:33,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 07:52:33,572 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:33,572 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:33,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 07:52:33,573 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:33,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:33,574 INFO L82 PathProgramCache]: Analyzing trace with hash -126197454, now seen corresponding path program 1 times [2021-10-13 07:52:33,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:33,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585255650] [2021-10-13 07:52:33,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:33,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:33,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:33,617 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:33,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585255650] [2021-10-13 07:52:33,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585255650] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:33,617 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:33,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:33,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723578727] [2021-10-13 07:52:33,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:33,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:33,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:33,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:33,619 INFO L87 Difference]: Start difference. First operand 256 states and 331 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) [2021-10-13 07:52:33,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:33,637 INFO L93 Difference]: Finished difference Result 279 states and 353 transitions. [2021-10-13 07:52:33,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:33,638 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 [2021-10-13 07:52:33,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:33,640 INFO L225 Difference]: With dead ends: 279 [2021-10-13 07:52:33,640 INFO L226 Difference]: Without dead ends: 279 [2021-10-13 07:52:33,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:33,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-10-13 07:52:33,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 244. [2021-10-13 07:52:33,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 235 states have (on average 1.3319148936170213) internal successors, (313), 243 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:33,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 313 transitions. [2021-10-13 07:52:33,648 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 313 transitions. Word has length 20 [2021-10-13 07:52:33,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:33,648 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 313 transitions. [2021-10-13 07:52:33,648 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) [2021-10-13 07:52:33,649 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 313 transitions. [2021-10-13 07:52:33,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 07:52:33,649 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:33,650 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:33,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 07:52:33,650 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:33,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:33,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1027665355, now seen corresponding path program 1 times [2021-10-13 07:52:33,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:33,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355524465] [2021-10-13 07:52:33,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:33,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:33,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:33,710 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:33,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355524465] [2021-10-13 07:52:33,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355524465] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:33,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:33,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:33,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46704297] [2021-10-13 07:52:33,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:33,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:33,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:33,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:33,714 INFO L87 Difference]: Start difference. First operand 244 states and 313 transitions. Second operand has 4 states, 4 states have (on average 5.0) 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) [2021-10-13 07:52:33,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:33,861 INFO L93 Difference]: Finished difference Result 239 states and 305 transitions. [2021-10-13 07:52:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:33,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) 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 [2021-10-13 07:52:33,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:33,865 INFO L225 Difference]: With dead ends: 239 [2021-10-13 07:52:33,865 INFO L226 Difference]: Without dead ends: 239 [2021-10-13 07:52:33,866 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:33,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-10-13 07:52:33,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-10-13 07:52:33,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 231 states have (on average 1.3203463203463204) internal successors, (305), 238 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:33,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 305 transitions. [2021-10-13 07:52:33,874 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 305 transitions. Word has length 20 [2021-10-13 07:52:33,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:33,874 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 305 transitions. [2021-10-13 07:52:33,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) 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) [2021-10-13 07:52:33,874 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 305 transitions. [2021-10-13 07:52:33,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-13 07:52:33,877 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:33,877 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:33,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 07:52:33,878 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:33,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:33,878 INFO L82 PathProgramCache]: Analyzing trace with hash -2082399788, now seen corresponding path program 1 times [2021-10-13 07:52:33,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:33,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452728481] [2021-10-13 07:52:33,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:33,879 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:34,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:34,013 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:34,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452728481] [2021-10-13 07:52:34,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452728481] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:34,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:34,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:34,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277156431] [2021-10-13 07:52:34,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:34,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:34,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:34,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:34,015 INFO L87 Difference]: Start difference. First operand 239 states and 305 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) [2021-10-13 07:52:34,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:34,047 INFO L93 Difference]: Finished difference Result 241 states and 300 transitions. [2021-10-13 07:52:34,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:34,048 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 [2021-10-13 07:52:34,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:34,050 INFO L225 Difference]: With dead ends: 241 [2021-10-13 07:52:34,050 INFO L226 Difference]: Without dead ends: 241 [2021-10-13 07:52:34,050 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:34,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-10-13 07:52:34,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 227. [2021-10-13 07:52:34,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.3045454545454545) internal successors, (287), 226 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) [2021-10-13 07:52:34,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 287 transitions. [2021-10-13 07:52:34,057 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 287 transitions. Word has length 21 [2021-10-13 07:52:34,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:34,057 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 287 transitions. [2021-10-13 07:52:34,057 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) [2021-10-13 07:52:34,058 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 287 transitions. [2021-10-13 07:52:34,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 07:52:34,058 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:34,058 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:34,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 07:52:34,059 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:34,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:34,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1978684297, now seen corresponding path program 1 times [2021-10-13 07:52:34,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:34,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795476009] [2021-10-13 07:52:34,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:34,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:34,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:34,122 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:34,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795476009] [2021-10-13 07:52:34,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795476009] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:34,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:34,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:34,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123593211] [2021-10-13 07:52:34,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:34,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:34,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:34,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:34,126 INFO L87 Difference]: Start difference. First operand 227 states and 287 transitions. Second operand has 4 states, 4 states have (on average 5.5) 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) [2021-10-13 07:52:34,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:34,273 INFO L93 Difference]: Finished difference Result 256 states and 317 transitions. [2021-10-13 07:52:34,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:34,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) 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 [2021-10-13 07:52:34,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:34,276 INFO L225 Difference]: With dead ends: 256 [2021-10-13 07:52:34,276 INFO L226 Difference]: Without dead ends: 256 [2021-10-13 07:52:34,276 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:34,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-13 07:52:34,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 227. [2021-10-13 07:52:34,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.290909090909091) internal successors, (284), 226 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:34,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 284 transitions. [2021-10-13 07:52:34,283 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 284 transitions. Word has length 22 [2021-10-13 07:52:34,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:34,283 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 284 transitions. [2021-10-13 07:52:34,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) 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) [2021-10-13 07:52:34,283 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 284 transitions. [2021-10-13 07:52:34,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 07:52:34,284 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:34,284 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:34,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-13 07:52:34,285 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:34,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:34,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1612986397, now seen corresponding path program 1 times [2021-10-13 07:52:34,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:34,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450378492] [2021-10-13 07:52:34,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:34,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:34,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:34,398 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:34,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450378492] [2021-10-13 07:52:34,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450378492] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:34,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:34,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:52:34,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58041958] [2021-10-13 07:52:34,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:52:34,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:34,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:52:34,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:34,401 INFO L87 Difference]: Start difference. First operand 227 states and 284 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 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) [2021-10-13 07:52:34,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:34,679 INFO L93 Difference]: Finished difference Result 299 states and 374 transitions. [2021-10-13 07:52:34,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:52:34,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 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 [2021-10-13 07:52:34,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:34,681 INFO L225 Difference]: With dead ends: 299 [2021-10-13 07:52:34,681 INFO L226 Difference]: Without dead ends: 299 [2021-10-13 07:52:34,682 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.4ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:34,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-10-13 07:52:34,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 227. [2021-10-13 07:52:34,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.290909090909091) internal successors, (284), 226 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:34,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 284 transitions. [2021-10-13 07:52:34,688 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 284 transitions. Word has length 23 [2021-10-13 07:52:34,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:34,688 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 284 transitions. [2021-10-13 07:52:34,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 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) [2021-10-13 07:52:34,689 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 284 transitions. [2021-10-13 07:52:34,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:52:34,689 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:34,689 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:34,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 07:52:34,690 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:34,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:34,690 INFO L82 PathProgramCache]: Analyzing trace with hash 211239206, now seen corresponding path program 1 times [2021-10-13 07:52:34,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:34,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266208832] [2021-10-13 07:52:34,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:34,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:34,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:34,737 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:34,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266208832] [2021-10-13 07:52:34,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266208832] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:34,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:34,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:34,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159195163] [2021-10-13 07:52:34,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:34,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:34,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:34,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:34,739 INFO L87 Difference]: Start difference. First operand 227 states and 284 transitions. Second operand has 4 states, 4 states have (on average 6.0) 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) [2021-10-13 07:52:34,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:34,853 INFO L93 Difference]: Finished difference Result 256 states and 311 transitions. [2021-10-13 07:52:34,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:34,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) 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 [2021-10-13 07:52:34,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:34,855 INFO L225 Difference]: With dead ends: 256 [2021-10-13 07:52:34,855 INFO L226 Difference]: Without dead ends: 256 [2021-10-13 07:52:34,856 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:34,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-13 07:52:34,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 227. [2021-10-13 07:52:34,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.2636363636363637) internal successors, (278), 226 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:34,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2021-10-13 07:52:34,861 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 24 [2021-10-13 07:52:34,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:34,862 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2021-10-13 07:52:34,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) 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) [2021-10-13 07:52:34,862 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2021-10-13 07:52:34,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 07:52:34,862 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:34,863 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:34,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 07:52:34,863 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:34,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:34,864 INFO L82 PathProgramCache]: Analyzing trace with hash 255990755, now seen corresponding path program 1 times [2021-10-13 07:52:34,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:34,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126351561] [2021-10-13 07:52:34,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:34,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:34,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:34,909 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:34,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126351561] [2021-10-13 07:52:34,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126351561] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:34,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:34,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:34,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878557616] [2021-10-13 07:52:34,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:34,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:34,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:34,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:34,912 INFO L87 Difference]: Start difference. First operand 227 states and 278 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) [2021-10-13 07:52:34,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:34,999 INFO L93 Difference]: Finished difference Result 227 states and 272 transitions. [2021-10-13 07:52:35,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:35,000 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 [2021-10-13 07:52:35,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:35,001 INFO L225 Difference]: With dead ends: 227 [2021-10-13 07:52:35,001 INFO L226 Difference]: Without dead ends: 227 [2021-10-13 07:52:35,002 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:35,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-10-13 07:52:35,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-10-13 07:52:35,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.2363636363636363) internal successors, (272), 226 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:35,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 272 transitions. [2021-10-13 07:52:35,007 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 272 transitions. Word has length 25 [2021-10-13 07:52:35,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:35,008 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 272 transitions. [2021-10-13 07:52:35,008 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) [2021-10-13 07:52:35,008 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 272 transitions. [2021-10-13 07:52:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 07:52:35,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:35,009 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:35,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-13 07:52:35,009 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:35,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:35,010 INFO L82 PathProgramCache]: Analyzing trace with hash 2142918319, now seen corresponding path program 1 times [2021-10-13 07:52:35,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:35,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446938694] [2021-10-13 07:52:35,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:35,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:35,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:35,099 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:35,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446938694] [2021-10-13 07:52:35,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446938694] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:35,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:35,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:52:35,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402112878] [2021-10-13 07:52:35,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:52:35,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:35,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:52:35,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:35,101 INFO L87 Difference]: Start difference. First operand 227 states and 272 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) [2021-10-13 07:52:35,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:35,275 INFO L93 Difference]: Finished difference Result 245 states and 296 transitions. [2021-10-13 07:52:35,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:52:35,278 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 [2021-10-13 07:52:35,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:35,280 INFO L225 Difference]: With dead ends: 245 [2021-10-13 07:52:35,280 INFO L226 Difference]: Without dead ends: 245 [2021-10-13 07:52:35,280 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.5ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:35,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2021-10-13 07:52:35,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 227. [2021-10-13 07:52:35,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 220 states have (on average 1.2363636363636363) internal successors, (272), 226 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:35,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 272 transitions. [2021-10-13 07:52:35,285 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 272 transitions. Word has length 25 [2021-10-13 07:52:35,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:35,286 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 272 transitions. [2021-10-13 07:52:35,286 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) [2021-10-13 07:52:35,286 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 272 transitions. [2021-10-13 07:52:35,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 07:52:35,287 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:35,287 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:35,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-13 07:52:35,288 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:35,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:35,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1464884705, now seen corresponding path program 1 times [2021-10-13 07:52:35,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:35,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191564620] [2021-10-13 07:52:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:35,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:35,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:35,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:35,340 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:35,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191564620] [2021-10-13 07:52:35,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191564620] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:35,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:35,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:52:35,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610271414] [2021-10-13 07:52:35,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:52:35,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:35,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:52:35,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:35,344 INFO L87 Difference]: Start difference. First operand 227 states and 272 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) [2021-10-13 07:52:35,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:35,391 INFO L93 Difference]: Finished difference Result 243 states and 287 transitions. [2021-10-13 07:52:35,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:52:35,392 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 [2021-10-13 07:52:35,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:35,393 INFO L225 Difference]: With dead ends: 243 [2021-10-13 07:52:35,393 INFO L226 Difference]: Without dead ends: 228 [2021-10-13 07:52:35,394 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:52:35,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-10-13 07:52:35,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2021-10-13 07:52:35,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 218 states have (on average 1.224770642201835) internal successors, (267), 224 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:35,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 267 transitions. [2021-10-13 07:52:35,398 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 267 transitions. Word has length 26 [2021-10-13 07:52:35,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:35,399 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 267 transitions. [2021-10-13 07:52:35,399 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) [2021-10-13 07:52:35,399 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 267 transitions. [2021-10-13 07:52:35,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 07:52:35,400 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:35,400 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:35,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-13 07:52:35,402 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:35,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:35,402 INFO L82 PathProgramCache]: Analyzing trace with hash -717299029, now seen corresponding path program 1 times [2021-10-13 07:52:35,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:35,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218355221] [2021-10-13 07:52:35,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:35,403 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:35,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:35,455 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:35,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218355221] [2021-10-13 07:52:35,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218355221] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:35,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:35,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:35,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432745916] [2021-10-13 07:52:35,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:35,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:35,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:35,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:35,457 INFO L87 Difference]: Start difference. First operand 225 states and 267 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) [2021-10-13 07:52:35,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:35,541 INFO L93 Difference]: Finished difference Result 224 states and 258 transitions. [2021-10-13 07:52:35,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:35,542 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 [2021-10-13 07:52:35,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:35,545 INFO L225 Difference]: With dead ends: 224 [2021-10-13 07:52:35,545 INFO L226 Difference]: Without dead ends: 224 [2021-10-13 07:52:35,545 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:35,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-10-13 07:52:35,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 218. [2021-10-13 07:52:35,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 212 states have (on average 1.1981132075471699) internal successors, (254), 217 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:35,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 254 transitions. [2021-10-13 07:52:35,566 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 254 transitions. Word has length 26 [2021-10-13 07:52:35,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:35,566 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 254 transitions. [2021-10-13 07:52:35,566 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) [2021-10-13 07:52:35,566 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 254 transitions. [2021-10-13 07:52:35,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:52:35,567 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:35,567 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:35,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-13 07:52:35,568 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:35,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:35,568 INFO L82 PathProgramCache]: Analyzing trace with hash -628442146, now seen corresponding path program 1 times [2021-10-13 07:52:35,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:35,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649393683] [2021-10-13 07:52:35,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:35,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:35,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:35,636 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:35,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649393683] [2021-10-13 07:52:35,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649393683] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:35,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:35,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:52:35,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910819052] [2021-10-13 07:52:35,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:35,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:35,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:35,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:35,638 INFO L87 Difference]: Start difference. First operand 218 states and 254 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 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) [2021-10-13 07:52:35,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:35,737 INFO L93 Difference]: Finished difference Result 244 states and 291 transitions. [2021-10-13 07:52:35,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:35,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 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 [2021-10-13 07:52:35,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:35,739 INFO L225 Difference]: With dead ends: 244 [2021-10-13 07:52:35,739 INFO L226 Difference]: Without dead ends: 244 [2021-10-13 07:52:35,740 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:35,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-10-13 07:52:35,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 204. [2021-10-13 07:52:35,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.195) internal successors, (239), 203 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:35,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 239 transitions. [2021-10-13 07:52:35,750 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 239 transitions. Word has length 27 [2021-10-13 07:52:35,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:35,751 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 239 transitions. [2021-10-13 07:52:35,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 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) [2021-10-13 07:52:35,751 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 239 transitions. [2021-10-13 07:52:35,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:52:35,752 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:35,752 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:35,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-13 07:52:35,753 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:35,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:35,753 INFO L82 PathProgramCache]: Analyzing trace with hash -743842298, now seen corresponding path program 1 times [2021-10-13 07:52:35,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:35,753 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784911083] [2021-10-13 07:52:35,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:35,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:35,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:35,831 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:35,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784911083] [2021-10-13 07:52:35,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784911083] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:35,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:35,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:52:35,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309234747] [2021-10-13 07:52:35,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:52:35,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:35,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:52:35,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:35,834 INFO L87 Difference]: Start difference. First operand 204 states and 239 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2021-10-13 07:52:35,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:35,949 INFO L93 Difference]: Finished difference Result 219 states and 252 transitions. [2021-10-13 07:52:35,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:52:35,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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 [2021-10-13 07:52:35,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:35,951 INFO L225 Difference]: With dead ends: 219 [2021-10-13 07:52:35,951 INFO L226 Difference]: Without dead ends: 218 [2021-10-13 07:52:35,951 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:52:35,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-10-13 07:52:35,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 210. [2021-10-13 07:52:35,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 206 states have (on average 1.1893203883495145) internal successors, (245), 209 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:35,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 245 transitions. [2021-10-13 07:52:35,957 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 245 transitions. Word has length 27 [2021-10-13 07:52:35,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:35,957 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 245 transitions. [2021-10-13 07:52:35,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 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) [2021-10-13 07:52:35,957 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 245 transitions. [2021-10-13 07:52:35,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:52:35,958 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:35,958 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:35,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-13 07:52:35,959 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:35,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:35,959 INFO L82 PathProgramCache]: Analyzing trace with hash -743854214, now seen corresponding path program 1 times [2021-10-13 07:52:35,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:35,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142712545] [2021-10-13 07:52:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:35,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:36,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:36,001 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:36,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142712545] [2021-10-13 07:52:36,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142712545] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:36,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:36,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:36,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535951346] [2021-10-13 07:52:36,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:36,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:36,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:36,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:36,004 INFO L87 Difference]: Start difference. First operand 210 states and 245 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) [2021-10-13 07:52:36,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:36,084 INFO L93 Difference]: Finished difference Result 215 states and 247 transitions. [2021-10-13 07:52:36,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:36,085 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 [2021-10-13 07:52:36,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:36,086 INFO L225 Difference]: With dead ends: 215 [2021-10-13 07:52:36,086 INFO L226 Difference]: Without dead ends: 199 [2021-10-13 07:52:36,087 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-13 07:52:36,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 196. [2021-10-13 07:52:36,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 192 states have (on average 1.1927083333333333) internal successors, (229), 195 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:36,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 229 transitions. [2021-10-13 07:52:36,092 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 229 transitions. Word has length 27 [2021-10-13 07:52:36,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:36,092 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 229 transitions. [2021-10-13 07:52:36,092 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) [2021-10-13 07:52:36,093 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 229 transitions. [2021-10-13 07:52:36,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 07:52:36,093 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:36,093 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:36,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-13 07:52:36,094 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:36,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:36,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1819865942, now seen corresponding path program 1 times [2021-10-13 07:52:36,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:36,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279607803] [2021-10-13 07:52:36,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:36,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:36,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:36,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:36,116 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:36,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279607803] [2021-10-13 07:52:36,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279607803] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:36,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:36,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:36,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799314454] [2021-10-13 07:52:36,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:36,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:36,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:36,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:36,118 INFO L87 Difference]: Start difference. First operand 196 states and 229 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) 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) [2021-10-13 07:52:36,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:36,132 INFO L93 Difference]: Finished difference Result 196 states and 224 transitions. [2021-10-13 07:52:36,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:36,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) 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 [2021-10-13 07:52:36,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:36,134 INFO L225 Difference]: With dead ends: 196 [2021-10-13 07:52:36,134 INFO L226 Difference]: Without dead ends: 196 [2021-10-13 07:52:36,134 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:36,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-10-13 07:52:36,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2021-10-13 07:52:36,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 191 states have (on average 1.1675392670157068) internal successors, (223), 194 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:36,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 223 transitions. [2021-10-13 07:52:36,140 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 223 transitions. Word has length 28 [2021-10-13 07:52:36,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:36,140 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 223 transitions. [2021-10-13 07:52:36,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) 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) [2021-10-13 07:52:36,140 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 223 transitions. [2021-10-13 07:52:36,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-13 07:52:36,141 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:36,141 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:36,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-13 07:52:36,142 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:36,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:36,142 INFO L82 PathProgramCache]: Analyzing trace with hash 985700340, now seen corresponding path program 1 times [2021-10-13 07:52:36,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:36,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762657557] [2021-10-13 07:52:36,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:36,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:36,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:36,173 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:36,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762657557] [2021-10-13 07:52:36,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762657557] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:36,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:36,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:52:36,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249599978] [2021-10-13 07:52:36,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:36,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:36,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:36,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:36,176 INFO L87 Difference]: Start difference. First operand 195 states and 223 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 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) [2021-10-13 07:52:36,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:36,189 INFO L93 Difference]: Finished difference Result 183 states and 210 transitions. [2021-10-13 07:52:36,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:36,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 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 [2021-10-13 07:52:36,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:36,191 INFO L225 Difference]: With dead ends: 183 [2021-10-13 07:52:36,191 INFO L226 Difference]: Without dead ends: 183 [2021-10-13 07:52:36,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:36,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-10-13 07:52:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-10-13 07:52:36,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 179 states have (on average 1.1731843575418994) internal successors, (210), 182 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:36,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 210 transitions. [2021-10-13 07:52:36,196 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 210 transitions. Word has length 30 [2021-10-13 07:52:36,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:36,196 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 210 transitions. [2021-10-13 07:52:36,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 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) [2021-10-13 07:52:36,197 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 210 transitions. [2021-10-13 07:52:36,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-13 07:52:36,197 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:36,198 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:36,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-13 07:52:36,198 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:36,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:36,199 INFO L82 PathProgramCache]: Analyzing trace with hash 525809405, now seen corresponding path program 1 times [2021-10-13 07:52:36,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:36,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749763046] [2021-10-13 07:52:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:36,199 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:36,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:36,237 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:36,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749763046] [2021-10-13 07:52:36,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749763046] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:36,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:36,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:52:36,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564142610] [2021-10-13 07:52:36,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:52:36,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:36,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:52:36,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:36,239 INFO L87 Difference]: Start difference. First operand 183 states and 210 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) [2021-10-13 07:52:36,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:36,341 INFO L93 Difference]: Finished difference Result 197 states and 223 transitions. [2021-10-13 07:52:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:52:36,342 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 30 [2021-10-13 07:52:36,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:36,343 INFO L225 Difference]: With dead ends: 197 [2021-10-13 07:52:36,343 INFO L226 Difference]: Without dead ends: 153 [2021-10-13 07:52:36,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.4ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:52:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-13 07:52:36,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 137. [2021-10-13 07:52:36,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 134 states have (on average 1.2014925373134329) internal successors, (161), 136 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:36,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 161 transitions. [2021-10-13 07:52:36,348 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 161 transitions. Word has length 30 [2021-10-13 07:52:36,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:36,348 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 161 transitions. [2021-10-13 07:52:36,348 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) [2021-10-13 07:52:36,348 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 161 transitions. [2021-10-13 07:52:36,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 07:52:36,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:36,349 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:36,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-13 07:52:36,349 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:36,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:36,350 INFO L82 PathProgramCache]: Analyzing trace with hash -362549313, now seen corresponding path program 1 times [2021-10-13 07:52:36,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:36,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262842655] [2021-10-13 07:52:36,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:36,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:36,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:36,424 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:36,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262842655] [2021-10-13 07:52:36,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262842655] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:36,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:36,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:52:36,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785063861] [2021-10-13 07:52:36,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:52:36,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:36,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:52:36,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:52:36,426 INFO L87 Difference]: Start difference. First operand 137 states and 161 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 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) [2021-10-13 07:52:36,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:36,664 INFO L93 Difference]: Finished difference Result 174 states and 206 transitions. [2021-10-13 07:52:36,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 07:52:36,665 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 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 [2021-10-13 07:52:36,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:36,666 INFO L225 Difference]: With dead ends: 174 [2021-10-13 07:52:36,666 INFO L226 Difference]: Without dead ends: 174 [2021-10-13 07:52:36,666 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 87.2ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:52:36,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-10-13 07:52:36,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 137. [2021-10-13 07:52:36,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 134 states have (on average 1.2014925373134329) internal successors, (161), 136 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:36,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 161 transitions. [2021-10-13 07:52:36,670 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 161 transitions. Word has length 33 [2021-10-13 07:52:36,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:36,671 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 161 transitions. [2021-10-13 07:52:36,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 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) [2021-10-13 07:52:36,671 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 161 transitions. [2021-10-13 07:52:36,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 07:52:36,672 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:36,672 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:36,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-13 07:52:36,673 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:36,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:36,673 INFO L82 PathProgramCache]: Analyzing trace with hash 921365570, now seen corresponding path program 1 times [2021-10-13 07:52:36,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:36,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457227164] [2021-10-13 07:52:36,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:36,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:36,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:36,788 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:36,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457227164] [2021-10-13 07:52:36,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457227164] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:36,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:36,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 07:52:36,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793722904] [2021-10-13 07:52:36,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:52:36,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:36,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:52:36,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:36,791 INFO L87 Difference]: Start difference. First operand 137 states and 161 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) [2021-10-13 07:52:36,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:36,910 INFO L93 Difference]: Finished difference Result 168 states and 203 transitions. [2021-10-13 07:52:36,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:52:36,910 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 [2021-10-13 07:52:36,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:36,911 INFO L225 Difference]: With dead ends: 168 [2021-10-13 07:52:36,911 INFO L226 Difference]: Without dead ends: 168 [2021-10-13 07:52:36,912 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.4ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:36,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-10-13 07:52:36,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 123. [2021-10-13 07:52:36,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 121 states have (on average 1.1735537190082646) internal successors, (142), 122 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:36,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 142 transitions. [2021-10-13 07:52:36,915 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 142 transitions. Word has length 36 [2021-10-13 07:52:36,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:36,915 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 142 transitions. [2021-10-13 07:52:36,916 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) [2021-10-13 07:52:36,916 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 142 transitions. [2021-10-13 07:52:36,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 07:52:36,916 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:36,916 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:36,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-13 07:52:36,917 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:36,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:36,917 INFO L82 PathProgramCache]: Analyzing trace with hash 2012979242, now seen corresponding path program 1 times [2021-10-13 07:52:36,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:36,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882280642] [2021-10-13 07:52:36,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:36,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:36,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:36,978 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:36,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882280642] [2021-10-13 07:52:36,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882280642] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:36,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:36,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:52:36,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533617726] [2021-10-13 07:52:36,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:52:36,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:36,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:52:36,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:36,980 INFO L87 Difference]: Start difference. First operand 123 states and 142 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) [2021-10-13 07:52:37,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:37,063 INFO L93 Difference]: Finished difference Result 141 states and 160 transitions. [2021-10-13 07:52:37,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:52:37,064 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 37 [2021-10-13 07:52:37,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:37,065 INFO L225 Difference]: With dead ends: 141 [2021-10-13 07:52:37,065 INFO L226 Difference]: Without dead ends: 125 [2021-10-13 07:52:37,067 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:52:37,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-13 07:52:37,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-10-13 07:52:37,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 123 states have (on average 1.1626016260162602) internal successors, (143), 124 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:37,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 143 transitions. [2021-10-13 07:52:37,071 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 143 transitions. Word has length 37 [2021-10-13 07:52:37,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:37,071 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 143 transitions. [2021-10-13 07:52:37,071 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) [2021-10-13 07:52:37,071 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 143 transitions. [2021-10-13 07:52:37,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 07:52:37,072 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:37,072 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:37,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-13 07:52:37,073 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:37,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:37,074 INFO L82 PathProgramCache]: Analyzing trace with hash 911798761, now seen corresponding path program 1 times [2021-10-13 07:52:37,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:37,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102775710] [2021-10-13 07:52:37,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:37,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:37,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:37,159 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:37,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102775710] [2021-10-13 07:52:37,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102775710] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:37,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:37,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 07:52:37,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550905897] [2021-10-13 07:52:37,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:52:37,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:37,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:52:37,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:37,161 INFO L87 Difference]: Start difference. First operand 125 states and 143 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) [2021-10-13 07:52:37,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:37,268 INFO L93 Difference]: Finished difference Result 139 states and 156 transitions. [2021-10-13 07:52:37,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:52:37,269 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 37 [2021-10-13 07:52:37,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:37,270 INFO L225 Difference]: With dead ends: 139 [2021-10-13 07:52:37,270 INFO L226 Difference]: Without dead ends: 125 [2021-10-13 07:52:37,270 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 88.2ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:52:37,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-13 07:52:37,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2021-10-13 07:52:37,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 123 states have (on average 1.1544715447154472) internal successors, (142), 124 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 142 transitions. [2021-10-13 07:52:37,273 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 142 transitions. Word has length 37 [2021-10-13 07:52:37,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:37,273 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 142 transitions. [2021-10-13 07:52:37,273 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) [2021-10-13 07:52:37,273 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 142 transitions. [2021-10-13 07:52:37,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-13 07:52:37,274 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:37,274 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:37,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-13 07:52:37,275 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:37,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:37,276 INFO L82 PathProgramCache]: Analyzing trace with hash 48951965, now seen corresponding path program 1 times [2021-10-13 07:52:37,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:37,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014918836] [2021-10-13 07:52:37,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:37,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:37,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:37,314 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:37,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014918836] [2021-10-13 07:52:37,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014918836] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:37,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:37,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:37,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128262778] [2021-10-13 07:52:37,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:37,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:37,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:37,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:37,316 INFO L87 Difference]: Start difference. First operand 125 states and 142 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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) [2021-10-13 07:52:37,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:37,329 INFO L93 Difference]: Finished difference Result 155 states and 172 transitions. [2021-10-13 07:52:37,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:37,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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 38 [2021-10-13 07:52:37,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:37,330 INFO L225 Difference]: With dead ends: 155 [2021-10-13 07:52:37,330 INFO L226 Difference]: Without dead ends: 155 [2021-10-13 07:52:37,331 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:37,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-10-13 07:52:37,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 125. [2021-10-13 07:52:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 123 states have (on average 1.1300813008130082) internal successors, (139), 124 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:37,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 139 transitions. [2021-10-13 07:52:37,334 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 139 transitions. Word has length 38 [2021-10-13 07:52:37,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:37,334 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 139 transitions. [2021-10-13 07:52:37,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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) [2021-10-13 07:52:37,335 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 139 transitions. [2021-10-13 07:52:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-13 07:52:37,335 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:37,336 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:37,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-13 07:52:37,336 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:37,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:37,336 INFO L82 PathProgramCache]: Analyzing trace with hash 951085687, now seen corresponding path program 1 times [2021-10-13 07:52:37,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:37,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262528021] [2021-10-13 07:52:37,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:37,337 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:52:37,353 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:52:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:52:37,417 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:52:37,417 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:52:37,418 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,420 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,421 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,422 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,423 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,424 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,425 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,426 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,427 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:52:37,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-13 07:52:37,433 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:52:37,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:52:37 BoogieIcfgContainer [2021-10-13 07:52:37,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:52:37,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:52:37,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:52:37,544 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:52:37,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:30" (3/4) ... [2021-10-13 07:52:37,547 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:52:37,547 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:52:37,549 INFO L168 Benchmark]: Toolchain (without parser) took 10023.68 ms. Allocated memory was 86.0 MB in the beginning and 199.2 MB in the end (delta: 113.2 MB). Free memory was 45.8 MB in the beginning and 83.4 MB in the end (delta: -37.6 MB). Peak memory consumption was 74.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:37,549 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory is still 63.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:52:37,550 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.77 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 45.6 MB in the beginning and 81.9 MB in the end (delta: -36.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:37,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 154.83 ms. Allocated memory is still 115.3 MB. Free memory was 81.9 MB in the beginning and 74.2 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:37,551 INFO L168 Benchmark]: Boogie Preprocessor took 128.55 ms. Allocated memory is still 115.3 MB. Free memory was 74.2 MB in the beginning and 69.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:37,551 INFO L168 Benchmark]: RCFGBuilder took 2264.70 ms. Allocated memory was 115.3 MB in the beginning and 165.7 MB in the end (delta: 50.3 MB). Free memory was 69.3 MB in the beginning and 96.8 MB in the end (delta: -27.5 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:37,553 INFO L168 Benchmark]: TraceAbstraction took 6878.51 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 96.8 MB in the beginning and 83.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 46.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:52:37,553 INFO L168 Benchmark]: Witness Printer took 3.91 ms. Allocated memory is still 199.2 MB. Free memory is still 83.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:52:37,556 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory is still 63.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 578.77 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 45.6 MB in the beginning and 81.9 MB in the end (delta: -36.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 154.83 ms. Allocated memory is still 115.3 MB. Free memory was 81.9 MB in the beginning and 74.2 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 128.55 ms. Allocated memory is still 115.3 MB. Free memory was 74.2 MB in the beginning and 69.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2264.70 ms. Allocated memory was 115.3 MB in the beginning and 165.7 MB in the end (delta: 50.3 MB). Free memory was 69.3 MB in the beginning and 96.8 MB in the end (delta: -27.5 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6878.51 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 96.8 MB in the beginning and 83.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 46.0 MB. Max. memory is 16.1 GB. * Witness Printer took 3.91 ms. Allocated memory is still 199.2 MB. Free memory is still 83.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 65. Possible FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] int PagingMutex = 0; [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] 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] [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] myStatus = 0 [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] myStatus = -1073741637 [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] 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] [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 3 [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] PagingReferenceCount ++ [L196] COND TRUE PagingReferenceCount == 1 [L199] disketteExtension = DeviceObject__DeviceExtension [L200] 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] [L201] 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] [L210] 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] [L213] 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 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] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] 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] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] 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] [L121] 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] [L153] COND TRUE pended == 0 [L154] 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] [L160] 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] [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __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] [L263] COND TRUE __cil_tmp29 == 259L [L1036] 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] [L1045] 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] [L1049] 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] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 0 [L1064] return (0); [L268] COND TRUE disketteExtension__FloppyThread != 0 [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] 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] [L274] COND TRUE s == NP [L275] 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] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] 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] [L944] 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] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] COND TRUE tmp_ndt_12 == 0 [L970] 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] [L983] 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] [L987] 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] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] 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] [L1006] return (returnVal2); [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] PagingReferenceCount -- [L431] COND TRUE PagingReferenceCount == 0 [L434] 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] [L740] status = FloppyPnp(devobj, pirp) [L750] 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] [L751] 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] [L758] 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] [L759] 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] [L766] 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] [L767] 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] [L768] 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] [L782] 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] [L783] 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] [L65] 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: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 670]: 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, 259 locations, 42 error locations. Started 1 CEGAR loops. OverallTime: 6690.3ms, OverallIterations: 36, TraceHistogramMax: 1, EmptinessCheckTime: 50.0ms, AutomataDifference: 3514.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 32.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 7436 SDtfs, 5179 SDslu, 6809 SDs, 0 SdLazy, 2739 SolverSat, 339 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2046.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 587.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=7, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 314.6ms AutomataMinimizationTime, 35 MinimizatonAttempts, 612 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 129.6ms SsaConstructionTime, 607.6ms SatisfiabilityAnalysisTime, 1486.7ms InterpolantComputationTime, 816 NumberOfCodeBlocks, 816 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 742 ConstructedInterpolants, 0 QuantifiedInterpolants, 2107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 35 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 [2021-10-13 07:52:37,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/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-4e77c04 [2021-10-13 07:52:40,129 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2021-10-13 07:52:40,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:52:40,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:52:40,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:52:40,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-13 07:52:40,341 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:52:40,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:52:40,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:52:40,343 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:52:40,344 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:52:40,344 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:52:40,344 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:52:40,344 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:52:40,345 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:52:40,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 07:52:40,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 07:52:40,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:52:40,348 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:52:40,348 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 07:52:40,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:52:40,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:52:40,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:52:40,349 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 07:52:40,349 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 07:52:40,350 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 07:52:40,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:52:40,350 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:52:40,350 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:52:40,351 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:52:40,351 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:52:40,351 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:52:40,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:52:40,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:52:40,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:52:40,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:52:40,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:52:40,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:52:40,353 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:52:40,354 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:52:40,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:52:40,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:52:40,354 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_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f2ff50c19fe4a3b45780d8d11b89e9a2800d57 [2021-10-13 07:52:40,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:52:40,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:52:40,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:52:40,841 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:52:40,842 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:52:40,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-13 07:52:40,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/data/f847220fb/aa7d6ae6fa514ff092d018b5037aa674/FLAG949bc86cd [2021-10-13 07:52:41,673 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:52:41,674 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c [2021-10-13 07:52:41,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/data/f847220fb/aa7d6ae6fa514ff092d018b5037aa674/FLAG949bc86cd [2021-10-13 07:52:41,895 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/data/f847220fb/aa7d6ae6fa514ff092d018b5037aa674 [2021-10-13 07:52:41,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:52:41,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:52:41,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:52:41,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:52:41,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:52:41,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:41" (1/1) ... [2021-10-13 07:52:41,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@621e8cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:41, skipping insertion in model container [2021-10-13 07:52:41,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:41" (1/1) ... [2021-10-13 07:52:41,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:52:41,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:52:42,134 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_2ee3b857-32a8-486b-94ec-23af809366b4/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-13 07:52:42,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:52:42,286 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:52:42,314 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_2ee3b857-32a8-486b-94ec-23af809366b4/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-1.c[2713,2726] [2021-10-13 07:52:42,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:52:42,449 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:52:42,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42 WrapperNode [2021-10-13 07:52:42,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:52:42,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:52:42,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:52:42,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:52:42,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42" (1/1) ... [2021-10-13 07:52:42,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42" (1/1) ... [2021-10-13 07:52:42,580 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:52:42,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:52:42,581 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:52:42,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:52:42,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42" (1/1) ... [2021-10-13 07:52:42,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42" (1/1) ... [2021-10-13 07:52:42,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42" (1/1) ... [2021-10-13 07:52:42,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42" (1/1) ... [2021-10-13 07:52:42,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42" (1/1) ... [2021-10-13 07:52:42,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42" (1/1) ... [2021-10-13 07:52:42,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42" (1/1) ... [2021-10-13 07:52:42,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:52:42,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:52:42,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:52:42,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:52:42,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42" (1/1) ... [2021-10-13 07:52:42,693 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:52:42,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:52:42,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:52:42,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:52:42,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:52:42,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:52:42,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:52:42,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:52:43,021 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,044 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,053 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,058 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,060 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,063 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,069 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,073 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,074 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,075 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,085 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,094 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,095 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,096 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,097 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,100 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,110 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,117 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,120 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,125 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,128 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,129 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,132 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:43,134 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-13 07:52:44,248 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume !false; [2021-10-13 07:52:44,248 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##415: assume false; [2021-10-13 07:52:44,248 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2021-10-13 07:52:44,248 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume false; [2021-10-13 07:52:44,249 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##291: assume !false; [2021-10-13 07:52:44,249 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##490: assume !false; [2021-10-13 07:52:44,249 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##269: assume false; [2021-10-13 07:52:44,249 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume !false; [2021-10-13 07:52:44,249 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2021-10-13 07:52:44,250 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2021-10-13 07:52:44,250 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2021-10-13 07:52:44,250 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2021-10-13 07:52:44,250 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2021-10-13 07:52:44,250 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##470: assume false; [2021-10-13 07:52:44,251 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume false; [2021-10-13 07:52:44,251 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##471: assume !false; [2021-10-13 07:52:44,251 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##233: assume !false; [2021-10-13 07:52:44,251 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##242: assume !false; [2021-10-13 07:52:44,251 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume false; [2021-10-13 07:52:44,252 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##489: assume false; [2021-10-13 07:52:44,252 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume !false; [2021-10-13 07:52:44,252 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##245: assume false; [2021-10-13 07:52:44,252 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-13 07:52:44,252 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-13 07:52:44,253 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2021-10-13 07:52:44,253 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2021-10-13 07:52:44,253 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##175: assume !false; [2021-10-13 07:52:44,253 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume false; [2021-10-13 07:52:44,253 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2021-10-13 07:52:44,254 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2021-10-13 07:52:44,254 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2021-10-13 07:52:44,254 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2021-10-13 07:52:44,254 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume false; [2021-10-13 07:52:44,254 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2021-10-13 07:52:44,255 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2021-10-13 07:52:44,255 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume !false; [2021-10-13 07:52:44,255 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume false; [2021-10-13 07:52:44,255 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2021-10-13 07:52:44,255 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume !false; [2021-10-13 07:52:44,255 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2021-10-13 07:52:44,256 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2021-10-13 07:52:44,256 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2021-10-13 07:52:44,256 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2021-10-13 07:52:44,256 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2021-10-13 07:52:44,256 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2021-10-13 07:52:44,257 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2021-10-13 07:52:44,257 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##364: assume !false; [2021-10-13 07:52:44,257 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##363: assume false; [2021-10-13 07:52:44,270 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:52:44,270 INFO L299 CfgBuilder]: Removed 207 assume(true) statements. [2021-10-13 07:52:44,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:44 BoogieIcfgContainer [2021-10-13 07:52:44,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:52:44,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:52:44,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:52:44,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:52:44,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:52:41" (1/3) ... [2021-10-13 07:52:44,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3451261f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:44, skipping insertion in model container [2021-10-13 07:52:44,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:42" (2/3) ... [2021-10-13 07:52:44,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3451261f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:44, skipping insertion in model container [2021-10-13 07:52:44,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:44" (3/3) ... [2021-10-13 07:52:44,281 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-1.c [2021-10-13 07:52:44,287 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:52:44,287 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-10-13 07:52:44,331 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:52:44,338 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, mConcurrency=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 [2021-10-13 07:52:44,338 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-10-13 07:52:44,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 422 states, 379 states have (on average 1.5936675461741425) internal successors, (604), 421 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:44,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 07:52:44,378 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:44,378 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:44,379 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:44,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:44,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1805892451, now seen corresponding path program 1 times [2021-10-13 07:52:44,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:44,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193549901] [2021-10-13 07:52:44,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:44,430 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:44,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:44,437 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:44,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:52:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:44,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:52:44,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:44,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:44,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:44,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:44,737 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:44,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193549901] [2021-10-13 07:52:44,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193549901] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:44,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:44,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:52:44,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242683964] [2021-10-13 07:52:44,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:44,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:44,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:44,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:44,763 INFO L87 Difference]: Start difference. First operand has 422 states, 379 states have (on average 1.5936675461741425) internal successors, (604), 421 states have internal predecessors, (604), 0 states have call successors, (0), 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 3.0) internal successors, (12), 4 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) [2021-10-13 07:52:44,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:44,885 INFO L93 Difference]: Finished difference Result 423 states and 560 transitions. [2021-10-13 07:52:44,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:44,891 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 7 [2021-10-13 07:52:44,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:44,918 INFO L225 Difference]: With dead ends: 423 [2021-10-13 07:52:44,918 INFO L226 Difference]: Without dead ends: 421 [2021-10-13 07:52:44,920 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:44,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-13 07:52:45,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 420. [2021-10-13 07:52:45,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 378 states have (on average 1.4735449735449735) internal successors, (557), 419 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:45,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 557 transitions. [2021-10-13 07:52:45,012 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 557 transitions. Word has length 7 [2021-10-13 07:52:45,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:45,013 INFO L470 AbstractCegarLoop]: Abstraction has 420 states and 557 transitions. [2021-10-13 07:52:45,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2021-10-13 07:52:45,014 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 557 transitions. [2021-10-13 07:52:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:52:45,014 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:45,015 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:45,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:45,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:45,232 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:45,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:45,236 INFO L82 PathProgramCache]: Analyzing trace with hash 294498135, now seen corresponding path program 1 times [2021-10-13 07:52:45,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:45,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124868503] [2021-10-13 07:52:45,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:45,238 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:45,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:45,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:45,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:52:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:45,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:52:45,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:45,431 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:45,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:45,471 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:45,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124868503] [2021-10-13 07:52:45,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2124868503] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:45,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:45,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:52:45,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567553996] [2021-10-13 07:52:45,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:45,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:45,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:45,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:45,477 INFO L87 Difference]: Start difference. First operand 420 states and 557 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2021-10-13 07:52:45,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:45,509 INFO L93 Difference]: Finished difference Result 419 states and 556 transitions. [2021-10-13 07:52:45,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:45,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 9 [2021-10-13 07:52:45,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:45,514 INFO L225 Difference]: With dead ends: 419 [2021-10-13 07:52:45,514 INFO L226 Difference]: Without dead ends: 416 [2021-10-13 07:52:45,516 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:45,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2021-10-13 07:52:45,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2021-10-13 07:52:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 375 states have (on average 1.456) internal successors, (546), 415 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:45,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 546 transitions. [2021-10-13 07:52:45,537 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 546 transitions. Word has length 9 [2021-10-13 07:52:45,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:45,538 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 546 transitions. [2021-10-13 07:52:45,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2021-10-13 07:52:45,538 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 546 transitions. [2021-10-13 07:52:45,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:52:45,539 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:45,539 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:45,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:45,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:45,753 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:45,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:45,754 INFO L82 PathProgramCache]: Analyzing trace with hash -32433196, now seen corresponding path program 1 times [2021-10-13 07:52:45,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:45,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422356444] [2021-10-13 07:52:45,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:45,755 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:45,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:45,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:45,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:52:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:45,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:52:45,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:45,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:45,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:46,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:46,025 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:46,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422356444] [2021-10-13 07:52:46,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422356444] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:46,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:46,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:52:46,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210689223] [2021-10-13 07:52:46,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:46,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:46,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:46,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:46,030 INFO L87 Difference]: Start difference. First operand 416 states and 546 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:46,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:46,096 INFO L93 Difference]: Finished difference Result 573 states and 739 transitions. [2021-10-13 07:52:46,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:46,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 07:52:46,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:46,101 INFO L225 Difference]: With dead ends: 573 [2021-10-13 07:52:46,102 INFO L226 Difference]: Without dead ends: 573 [2021-10-13 07:52:46,102 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.3ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:46,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-10-13 07:52:46,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 469. [2021-10-13 07:52:46,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 428 states have (on average 1.4532710280373833) internal successors, (622), 468 states have internal predecessors, (622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:46,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 622 transitions. [2021-10-13 07:52:46,117 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 622 transitions. Word has length 13 [2021-10-13 07:52:46,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:46,117 INFO L470 AbstractCegarLoop]: Abstraction has 469 states and 622 transitions. [2021-10-13 07:52:46,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:46,118 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 622 transitions. [2021-10-13 07:52:46,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:52:46,119 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:46,120 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:46,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:46,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:46,339 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:46,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:46,339 INFO L82 PathProgramCache]: Analyzing trace with hash -34280238, now seen corresponding path program 1 times [2021-10-13 07:52:46,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:46,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [333191622] [2021-10-13 07:52:46,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:46,340 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:46,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:46,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:46,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:52:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:46,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:52:46,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:46,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:46,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:46,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:46,634 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:46,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [333191622] [2021-10-13 07:52:46,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [333191622] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:46,636 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:46,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:52:46,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777211605] [2021-10-13 07:52:46,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:46,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:46,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:46,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:46,639 INFO L87 Difference]: Start difference. First operand 469 states and 622 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:46,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:46,965 INFO L93 Difference]: Finished difference Result 605 states and 801 transitions. [2021-10-13 07:52:46,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:46,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 07:52:46,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:46,971 INFO L225 Difference]: With dead ends: 605 [2021-10-13 07:52:46,972 INFO L226 Difference]: Without dead ends: 604 [2021-10-13 07:52:46,972 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:46,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-10-13 07:52:46,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 578. [2021-10-13 07:52:46,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 549 states have (on average 1.4116575591985427) internal successors, (775), 577 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:46,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 775 transitions. [2021-10-13 07:52:46,989 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 775 transitions. Word has length 13 [2021-10-13 07:52:46,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:46,990 INFO L470 AbstractCegarLoop]: Abstraction has 578 states and 775 transitions. [2021-10-13 07:52:46,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:46,990 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 775 transitions. [2021-10-13 07:52:46,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 07:52:46,991 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:46,991 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:47,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:47,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:47,203 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:47,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:47,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1372974563, now seen corresponding path program 1 times [2021-10-13 07:52:47,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:47,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644976240] [2021-10-13 07:52:47,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:47,204 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:47,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:47,206 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:47,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:52:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:47,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:52:47,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:47,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:47,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:47,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:47,458 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:47,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644976240] [2021-10-13 07:52:47,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644976240] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:47,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:47,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:52:47,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482446826] [2021-10-13 07:52:47,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:47,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:47,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:47,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:47,462 INFO L87 Difference]: Start difference. First operand 578 states and 775 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) [2021-10-13 07:52:47,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:47,515 INFO L93 Difference]: Finished difference Result 743 states and 992 transitions. [2021-10-13 07:52:47,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:47,516 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 [2021-10-13 07:52:47,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:47,520 INFO L225 Difference]: With dead ends: 743 [2021-10-13 07:52:47,521 INFO L226 Difference]: Without dead ends: 743 [2021-10-13 07:52:47,521 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:47,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2021-10-13 07:52:47,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 572. [2021-10-13 07:52:47,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 551 states have (on average 1.3920145190562614) internal successors, (767), 571 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:47,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 767 transitions. [2021-10-13 07:52:47,537 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 767 transitions. Word has length 16 [2021-10-13 07:52:47,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:47,538 INFO L470 AbstractCegarLoop]: Abstraction has 572 states and 767 transitions. [2021-10-13 07:52:47,538 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) [2021-10-13 07:52:47,538 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 767 transitions. [2021-10-13 07:52:47,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 07:52:47,539 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:47,539 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:47,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:47,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:47,751 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:47,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:47,751 INFO L82 PathProgramCache]: Analyzing trace with hash -694257974, now seen corresponding path program 1 times [2021-10-13 07:52:47,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:47,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981770315] [2021-10-13 07:52:47,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:47,752 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:47,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:47,753 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:47,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:52:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:47,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:52:47,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:47,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:47,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:48,014 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:48,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981770315] [2021-10-13 07:52:48,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981770315] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:48,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:48,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:52:48,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627037995] [2021-10-13 07:52:48,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:48,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:48,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:48,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:48,017 INFO L87 Difference]: Start difference. First operand 572 states and 767 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) [2021-10-13 07:52:48,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:48,058 INFO L93 Difference]: Finished difference Result 666 states and 887 transitions. [2021-10-13 07:52:48,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:48,059 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 [2021-10-13 07:52:48,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:48,063 INFO L225 Difference]: With dead ends: 666 [2021-10-13 07:52:48,063 INFO L226 Difference]: Without dead ends: 666 [2021-10-13 07:52:48,063 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:48,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-10-13 07:52:48,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 621. [2021-10-13 07:52:48,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 601 states have (on average 1.399334442595674) internal successors, (841), 620 states have internal predecessors, (841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 841 transitions. [2021-10-13 07:52:48,078 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 841 transitions. Word has length 19 [2021-10-13 07:52:48,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:48,079 INFO L470 AbstractCegarLoop]: Abstraction has 621 states and 841 transitions. [2021-10-13 07:52:48,079 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) [2021-10-13 07:52:48,079 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 841 transitions. [2021-10-13 07:52:48,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 07:52:48,081 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:48,081 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:48,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:48,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:48,294 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:48,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:48,294 INFO L82 PathProgramCache]: Analyzing trace with hash 560469428, now seen corresponding path program 1 times [2021-10-13 07:52:48,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:48,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810224452] [2021-10-13 07:52:48,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:48,295 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:48,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:48,295 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:48,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:52:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:48,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:52:48,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:48,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:48,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:48,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:48,563 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:48,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810224452] [2021-10-13 07:52:48,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810224452] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:48,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:48,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:52:48,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121458484] [2021-10-13 07:52:48,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:52:48,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:48,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:52:48,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:48,565 INFO L87 Difference]: Start difference. First operand 621 states and 841 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2021-10-13 07:52:48,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:48,617 INFO L93 Difference]: Finished difference Result 685 states and 903 transitions. [2021-10-13 07:52:48,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:52:48,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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 22 [2021-10-13 07:52:48,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:48,622 INFO L225 Difference]: With dead ends: 685 [2021-10-13 07:52:48,622 INFO L226 Difference]: Without dead ends: 685 [2021-10-13 07:52:48,623 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 27.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:52:48,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-10-13 07:52:48,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 597. [2021-10-13 07:52:48,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 577 states have (on average 1.3934142114384749) internal successors, (804), 596 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:48,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 804 transitions. [2021-10-13 07:52:48,638 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 804 transitions. Word has length 22 [2021-10-13 07:52:48,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:48,639 INFO L470 AbstractCegarLoop]: Abstraction has 597 states and 804 transitions. [2021-10-13 07:52:48,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 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) [2021-10-13 07:52:48,639 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 804 transitions. [2021-10-13 07:52:48,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 07:52:48,646 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:48,646 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:48,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:48,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:48,861 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:48,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:48,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1375358907, now seen corresponding path program 1 times [2021-10-13 07:52:48,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:48,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1059657543] [2021-10-13 07:52:48,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:48,862 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:48,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:48,863 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:48,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 07:52:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:49,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:52:49,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:49,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:49,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:49,167 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:49,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1059657543] [2021-10-13 07:52:49,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1059657543] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:49,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:49,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:52:49,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605368405] [2021-10-13 07:52:49,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:49,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:49,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:49,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:49,171 INFO L87 Difference]: Start difference. First operand 597 states and 804 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) [2021-10-13 07:52:49,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:49,371 INFO L93 Difference]: Finished difference Result 631 states and 846 transitions. [2021-10-13 07:52:49,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:49,372 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 [2021-10-13 07:52:49,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:49,376 INFO L225 Difference]: With dead ends: 631 [2021-10-13 07:52:49,376 INFO L226 Difference]: Without dead ends: 631 [2021-10-13 07:52:49,377 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:49,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-10-13 07:52:49,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 628. [2021-10-13 07:52:49,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 608 states have (on average 1.388157894736842) internal successors, (844), 627 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) [2021-10-13 07:52:49,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 844 transitions. [2021-10-13 07:52:49,393 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 844 transitions. Word has length 22 [2021-10-13 07:52:49,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:49,394 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 844 transitions. [2021-10-13 07:52:49,394 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) [2021-10-13 07:52:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 844 transitions. [2021-10-13 07:52:49,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 07:52:49,395 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:49,395 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:49,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:49,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:49,608 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:49,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:49,608 INFO L82 PathProgramCache]: Analyzing trace with hash -295967638, now seen corresponding path program 1 times [2021-10-13 07:52:49,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:49,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040430800] [2021-10-13 07:52:49,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:49,609 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:49,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:49,610 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:49,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 07:52:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:49,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:52:49,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:49,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:49,988 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:50,089 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:50,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040430800] [2021-10-13 07:52:50,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040430800] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:50,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:50,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:52:50,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624289621] [2021-10-13 07:52:50,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:52:50,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:50,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:52:50,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:50,092 INFO L87 Difference]: Start difference. First operand 628 states and 844 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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) [2021-10-13 07:52:50,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:50,402 INFO L93 Difference]: Finished difference Result 640 states and 853 transitions. [2021-10-13 07:52:50,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:52:50,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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 23 [2021-10-13 07:52:50,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:50,406 INFO L225 Difference]: With dead ends: 640 [2021-10-13 07:52:50,407 INFO L226 Difference]: Without dead ends: 640 [2021-10-13 07:52:50,407 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 46.2ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:52:50,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2021-10-13 07:52:50,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 628. [2021-10-13 07:52:50,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 608 states have (on average 1.3848684210526316) internal successors, (842), 627 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:50,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 842 transitions. [2021-10-13 07:52:50,424 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 842 transitions. Word has length 23 [2021-10-13 07:52:50,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:50,426 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 842 transitions. [2021-10-13 07:52:50,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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) [2021-10-13 07:52:50,427 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 842 transitions. [2021-10-13 07:52:50,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:52:50,428 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:50,428 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:50,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:50,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:50,640 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:50,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:50,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1118024598, now seen corresponding path program 1 times [2021-10-13 07:52:50,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:50,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [640862845] [2021-10-13 07:52:50,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:50,641 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:50,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:50,642 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:50,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 07:52:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:50,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:52:50,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:51,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:51,096 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:51,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [640862845] [2021-10-13 07:52:51,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [640862845] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:51,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:51,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:52:51,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385309654] [2021-10-13 07:52:51,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:52:51,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:51,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:52:51,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:51,099 INFO L87 Difference]: Start difference. First operand 628 states and 842 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 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) [2021-10-13 07:52:51,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:51,399 INFO L93 Difference]: Finished difference Result 631 states and 842 transitions. [2021-10-13 07:52:51,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:52:51,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 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 24 [2021-10-13 07:52:51,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:51,403 INFO L225 Difference]: With dead ends: 631 [2021-10-13 07:52:51,404 INFO L226 Difference]: Without dead ends: 631 [2021-10-13 07:52:51,404 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 39.8ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:52:51,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-10-13 07:52:51,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 628. [2021-10-13 07:52:51,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 608 states have (on average 1.381578947368421) internal successors, (840), 627 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:51,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 840 transitions. [2021-10-13 07:52:51,418 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 840 transitions. Word has length 24 [2021-10-13 07:52:51,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:51,419 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 840 transitions. [2021-10-13 07:52:51,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 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) [2021-10-13 07:52:51,419 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 840 transitions. [2021-10-13 07:52:51,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 07:52:51,420 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:51,420 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:51,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:51,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:51,632 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:51,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:51,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1539134309, now seen corresponding path program 1 times [2021-10-13 07:52:51,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:51,633 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1305652763] [2021-10-13 07:52:51,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:51,633 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:51,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:51,634 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:51,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 07:52:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:51,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:52:51,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:52,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:52,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:52,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:52,125 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:52,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1305652763] [2021-10-13 07:52:52,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1305652763] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:52,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:52,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:52:52,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488748595] [2021-10-13 07:52:52,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:52:52,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:52,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:52:52,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:52,128 INFO L87 Difference]: Start difference. First operand 628 states and 840 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2021-10-13 07:52:52,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:52,558 INFO L93 Difference]: Finished difference Result 782 states and 1018 transitions. [2021-10-13 07:52:52,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:52:52,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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 25 [2021-10-13 07:52:52,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:52,565 INFO L225 Difference]: With dead ends: 782 [2021-10-13 07:52:52,565 INFO L226 Difference]: Without dead ends: 782 [2021-10-13 07:52:52,565 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.2ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:52:52,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2021-10-13 07:52:52,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 628. [2021-10-13 07:52:52,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 609 states have (on average 1.3579638752052545) internal successors, (827), 627 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:52,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 827 transitions. [2021-10-13 07:52:52,589 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 827 transitions. Word has length 25 [2021-10-13 07:52:52,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:52,590 INFO L470 AbstractCegarLoop]: Abstraction has 628 states and 827 transitions. [2021-10-13 07:52:52,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 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) [2021-10-13 07:52:52,590 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 827 transitions. [2021-10-13 07:52:52,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 07:52:52,594 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:52,594 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:52,606 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-13 07:52:52,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:52,806 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:52,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:52,807 INFO L82 PathProgramCache]: Analyzing trace with hash 404337224, now seen corresponding path program 1 times [2021-10-13 07:52:52,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:52,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [679860316] [2021-10-13 07:52:52,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:52,808 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:52,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:52,809 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:52,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 07:52:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:53,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:52:53,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:53,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:53,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:53,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:53,136 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:53,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [679860316] [2021-10-13 07:52:53,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [679860316] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:53,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:53,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:52:53,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472747749] [2021-10-13 07:52:53,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:53,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:53,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:53,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:53,139 INFO L87 Difference]: Start difference. First operand 628 states and 827 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) 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) [2021-10-13 07:52:53,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:53,316 INFO L93 Difference]: Finished difference Result 616 states and 813 transitions. [2021-10-13 07:52:53,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:53,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) 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 [2021-10-13 07:52:53,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:53,320 INFO L225 Difference]: With dead ends: 616 [2021-10-13 07:52:53,320 INFO L226 Difference]: Without dead ends: 616 [2021-10-13 07:52:53,321 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:53,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2021-10-13 07:52:53,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2021-10-13 07:52:53,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 603 states have (on average 1.3482587064676617) internal successors, (813), 615 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:53,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 813 transitions. [2021-10-13 07:52:53,338 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 813 transitions. Word has length 25 [2021-10-13 07:52:53,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:53,339 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 813 transitions. [2021-10-13 07:52:53,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) 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) [2021-10-13 07:52:53,339 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 813 transitions. [2021-10-13 07:52:53,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 07:52:53,340 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:53,340 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:53,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:53,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:53,551 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:53,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:53,551 INFO L82 PathProgramCache]: Analyzing trace with hash -662982239, now seen corresponding path program 1 times [2021-10-13 07:52:53,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:53,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056463413] [2021-10-13 07:52:53,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:53,553 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:53,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:53,554 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:53,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-13 07:52:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:53,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:52:53,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:53,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:53,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:53,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:53,970 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:53,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056463413] [2021-10-13 07:52:53,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056463413] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:53,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:53,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:52:53,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119382455] [2021-10-13 07:52:53,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:52:53,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:53,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:52:53,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:53,972 INFO L87 Difference]: Start difference. First operand 616 states and 813 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) [2021-10-13 07:52:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:54,026 INFO L93 Difference]: Finished difference Result 627 states and 823 transitions. [2021-10-13 07:52:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:52:54,026 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 25 [2021-10-13 07:52:54,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:54,030 INFO L225 Difference]: With dead ends: 627 [2021-10-13 07:52:54,030 INFO L226 Difference]: Without dead ends: 614 [2021-10-13 07:52:54,031 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.5ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:52:54,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-10-13 07:52:54,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2021-10-13 07:52:54,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 601 states have (on average 1.3477537437603992) internal successors, (810), 613 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:54,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 810 transitions. [2021-10-13 07:52:54,051 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 810 transitions. Word has length 25 [2021-10-13 07:52:54,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:54,052 INFO L470 AbstractCegarLoop]: Abstraction has 614 states and 810 transitions. [2021-10-13 07:52:54,052 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) [2021-10-13 07:52:54,052 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 810 transitions. [2021-10-13 07:52:54,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 07:52:54,053 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:54,053 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:54,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:54,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:54,265 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:54,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:54,265 INFO L82 PathProgramCache]: Analyzing trace with hash -126977650, now seen corresponding path program 1 times [2021-10-13 07:52:54,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:54,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025796052] [2021-10-13 07:52:54,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:54,266 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:54,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:54,268 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:54,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 07:52:54,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:54,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:52:54,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:54,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:54,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:54,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:54,673 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:54,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025796052] [2021-10-13 07:52:54,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025796052] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:54,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:54,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:52:54,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807320527] [2021-10-13 07:52:54,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:52:54,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:54,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:52:54,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:54,675 INFO L87 Difference]: Start difference. First operand 614 states and 810 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) 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) [2021-10-13 07:52:54,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:54,838 INFO L93 Difference]: Finished difference Result 616 states and 813 transitions. [2021-10-13 07:52:54,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:54,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) 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 [2021-10-13 07:52:54,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:54,842 INFO L225 Difference]: With dead ends: 616 [2021-10-13 07:52:54,842 INFO L226 Difference]: Without dead ends: 616 [2021-10-13 07:52:54,843 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:52:54,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2021-10-13 07:52:54,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2021-10-13 07:52:54,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 605 states have (on average 1.343801652892562) internal successors, (813), 615 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:54,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 813 transitions. [2021-10-13 07:52:54,858 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 813 transitions. Word has length 28 [2021-10-13 07:52:54,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:54,858 INFO L470 AbstractCegarLoop]: Abstraction has 616 states and 813 transitions. [2021-10-13 07:52:54,859 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) 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) [2021-10-13 07:52:54,859 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 813 transitions. [2021-10-13 07:52:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-13 07:52:54,860 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:54,860 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:54,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:55,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:55,073 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:55,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:55,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1735454047, now seen corresponding path program 1 times [2021-10-13 07:52:55,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:55,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [301998015] [2021-10-13 07:52:55,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:55,074 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:55,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:55,075 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:55,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 07:52:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:55,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:52:55,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:55,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:55,472 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:55,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [301998015] [2021-10-13 07:52:55,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [301998015] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:55,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:55,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:52:55,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482054584] [2021-10-13 07:52:55,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:55,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:55,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:55,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:55,477 INFO L87 Difference]: Start difference. First operand 616 states and 813 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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) [2021-10-13 07:52:55,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:55,521 INFO L93 Difference]: Finished difference Result 592 states and 770 transitions. [2021-10-13 07:52:55,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:52:55,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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 29 [2021-10-13 07:52:55,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:55,526 INFO L225 Difference]: With dead ends: 592 [2021-10-13 07:52:55,527 INFO L226 Difference]: Without dead ends: 592 [2021-10-13 07:52:55,531 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:55,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2021-10-13 07:52:55,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 576. [2021-10-13 07:52:55,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 565 states have (on average 1.336283185840708) internal successors, (755), 575 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:55,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 755 transitions. [2021-10-13 07:52:55,556 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 755 transitions. Word has length 29 [2021-10-13 07:52:55,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:55,557 INFO L470 AbstractCegarLoop]: Abstraction has 576 states and 755 transitions. [2021-10-13 07:52:55,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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) [2021-10-13 07:52:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 755 transitions. [2021-10-13 07:52:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 07:52:55,558 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:55,559 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:55,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:55,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:55,771 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:55,771 INFO L82 PathProgramCache]: Analyzing trace with hash 393860114, now seen corresponding path program 1 times [2021-10-13 07:52:55,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:55,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441152404] [2021-10-13 07:52:55,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:55,772 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:55,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:55,772 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:55,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-13 07:52:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:56,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:52:56,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:56,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:56,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:56,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:56,207 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:56,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441152404] [2021-10-13 07:52:56,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441152404] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:56,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:56,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 07:52:56,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504749472] [2021-10-13 07:52:56,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:56,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:56,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:56,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:56,208 INFO L87 Difference]: Start difference. First operand 576 states and 755 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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) [2021-10-13 07:52:56,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:56,271 INFO L93 Difference]: Finished difference Result 560 states and 724 transitions. [2021-10-13 07:52:56,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:56,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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 [2021-10-13 07:52:56,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:56,275 INFO L225 Difference]: With dead ends: 560 [2021-10-13 07:52:56,275 INFO L226 Difference]: Without dead ends: 560 [2021-10-13 07:52:56,275 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:56,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-10-13 07:52:56,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 544. [2021-10-13 07:52:56,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 534 states have (on average 1.3277153558052435) internal successors, (709), 543 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:56,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 709 transitions. [2021-10-13 07:52:56,289 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 709 transitions. Word has length 32 [2021-10-13 07:52:56,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:56,290 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 709 transitions. [2021-10-13 07:52:56,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 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) [2021-10-13 07:52:56,290 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 709 transitions. [2021-10-13 07:52:56,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 07:52:56,292 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:56,292 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:56,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:56,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:56,508 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:56,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:56,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1734007889, now seen corresponding path program 1 times [2021-10-13 07:52:56,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:56,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933630563] [2021-10-13 07:52:56,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:56,509 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:56,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:56,511 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:56,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-13 07:52:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:56,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:52:56,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:57,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:57,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:57,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:57,175 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:57,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933630563] [2021-10-13 07:52:57,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933630563] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:57,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:57,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:52:57,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525461458] [2021-10-13 07:52:57,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:52:57,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:57,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:52:57,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:57,178 INFO L87 Difference]: Start difference. First operand 544 states and 709 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:57,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:57,458 INFO L93 Difference]: Finished difference Result 573 states and 739 transitions. [2021-10-13 07:52:57,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:52:57,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 [2021-10-13 07:52:57,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:57,461 INFO L225 Difference]: With dead ends: 573 [2021-10-13 07:52:57,461 INFO L226 Difference]: Without dead ends: 573 [2021-10-13 07:52:57,462 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 34.5ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:52:57,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-10-13 07:52:57,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 544. [2021-10-13 07:52:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 534 states have (on average 1.3220973782771535) internal successors, (706), 543 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:57,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 706 transitions. [2021-10-13 07:52:57,474 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 706 transitions. Word has length 33 [2021-10-13 07:52:57,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:57,474 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 706 transitions. [2021-10-13 07:52:57,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:57,475 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 706 transitions. [2021-10-13 07:52:57,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 07:52:57,476 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:57,476 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:57,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:57,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:57,688 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:57,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:57,689 INFO L82 PathProgramCache]: Analyzing trace with hash -884948062, now seen corresponding path program 1 times [2021-10-13 07:52:57,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:57,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055479709] [2021-10-13 07:52:57,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:57,690 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:57,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:57,691 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:57,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-13 07:52:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:57,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:52:57,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:58,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:58,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:58,312 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:58,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055479709] [2021-10-13 07:52:58,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055479709] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:58,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:58,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:52:58,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401131029] [2021-10-13 07:52:58,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:52:58,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:58,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:52:58,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:52:58,314 INFO L87 Difference]: Start difference. First operand 544 states and 706 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) [2021-10-13 07:52:58,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:58,539 INFO L93 Difference]: Finished difference Result 573 states and 731 transitions. [2021-10-13 07:52:58,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:52:58,540 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 33 [2021-10-13 07:52:58,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:58,543 INFO L225 Difference]: With dead ends: 573 [2021-10-13 07:52:58,543 INFO L226 Difference]: Without dead ends: 573 [2021-10-13 07:52:58,544 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:52:58,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-10-13 07:52:58,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 544. [2021-10-13 07:52:58,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 534 states have (on average 1.307116104868914) internal successors, (698), 543 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 698 transitions. [2021-10-13 07:52:58,560 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 698 transitions. Word has length 33 [2021-10-13 07:52:58,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:58,560 INFO L470 AbstractCegarLoop]: Abstraction has 544 states and 698 transitions. [2021-10-13 07:52:58,560 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) [2021-10-13 07:52:58,560 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 698 transitions. [2021-10-13 07:52:58,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-13 07:52:58,562 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:58,562 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:58,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:58,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:58,774 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:58,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:58,775 INFO L82 PathProgramCache]: Analyzing trace with hash 474622568, now seen corresponding path program 1 times [2021-10-13 07:52:58,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:58,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603507999] [2021-10-13 07:52:58,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:58,776 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:58,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:58,776 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:58,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-13 07:52:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:59,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:52:59,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:52:59,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:59,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:52:59,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:59,319 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:52:59,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603507999] [2021-10-13 07:52:59,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603507999] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:59,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:59,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 07:52:59,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256100403] [2021-10-13 07:52:59,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:52:59,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:52:59,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:52:59,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:52:59,321 INFO L87 Difference]: Start difference. First operand 544 states and 698 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2021-10-13 07:52:59,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:59,424 INFO L93 Difference]: Finished difference Result 562 states and 715 transitions. [2021-10-13 07:52:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:52:59,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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 34 [2021-10-13 07:52:59,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:59,428 INFO L225 Difference]: With dead ends: 562 [2021-10-13 07:52:59,428 INFO L226 Difference]: Without dead ends: 540 [2021-10-13 07:52:59,428 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 64.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-13 07:52:59,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2021-10-13 07:52:59,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 537. [2021-10-13 07:52:59,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 527 states have (on average 1.301707779886148) internal successors, (686), 536 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:52:59,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 686 transitions. [2021-10-13 07:52:59,444 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 686 transitions. Word has length 34 [2021-10-13 07:52:59,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:59,444 INFO L470 AbstractCegarLoop]: Abstraction has 537 states and 686 transitions. [2021-10-13 07:52:59,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 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) [2021-10-13 07:52:59,445 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 686 transitions. [2021-10-13 07:52:59,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 07:52:59,446 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:59,446 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:52:59,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-10-13 07:52:59,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:52:59,659 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:52:59,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:59,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1278502676, now seen corresponding path program 1 times [2021-10-13 07:52:59,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:52:59,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992113756] [2021-10-13 07:52:59,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:59,660 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:52:59,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:52:59,661 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:52:59,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-13 07:53:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:00,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:53:00,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:00,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:00,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:00,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:00,170 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:00,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992113756] [2021-10-13 07:53:00,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [992113756] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:00,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:00,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:53:00,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802274914] [2021-10-13 07:53:00,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:53:00,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:00,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:53:00,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:53:00,172 INFO L87 Difference]: Start difference. First operand 537 states and 686 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) [2021-10-13 07:53:00,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:00,385 INFO L93 Difference]: Finished difference Result 926 states and 1160 transitions. [2021-10-13 07:53:00,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:53:00,386 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 35 [2021-10-13 07:53:00,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:00,390 INFO L225 Difference]: With dead ends: 926 [2021-10-13 07:53:00,391 INFO L226 Difference]: Without dead ends: 926 [2021-10-13 07:53:00,391 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:53:00,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2021-10-13 07:53:00,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 570. [2021-10-13 07:53:00,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 560 states have (on average 1.2982142857142858) internal successors, (727), 569 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 727 transitions. [2021-10-13 07:53:00,407 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 727 transitions. Word has length 35 [2021-10-13 07:53:00,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:00,408 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 727 transitions. [2021-10-13 07:53:00,408 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) [2021-10-13 07:53:00,408 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 727 transitions. [2021-10-13 07:53:00,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 07:53:00,409 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:00,409 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:00,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:00,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:00,623 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:00,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:00,624 INFO L82 PathProgramCache]: Analyzing trace with hash 813687739, now seen corresponding path program 1 times [2021-10-13 07:53:00,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:00,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560733308] [2021-10-13 07:53:00,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:00,625 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:00,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:00,626 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:00,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-13 07:53:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:00,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:53:00,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:01,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:01,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:01,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:01,244 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:01,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560733308] [2021-10-13 07:53:01,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560733308] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:01,244 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:01,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:53:01,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90294017] [2021-10-13 07:53:01,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:53:01,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:01,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:53:01,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:53:01,246 INFO L87 Difference]: Start difference. First operand 570 states and 727 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:01,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:01,457 INFO L93 Difference]: Finished difference Result 543 states and 675 transitions. [2021-10-13 07:53:01,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:53:01,457 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 [2021-10-13 07:53:01,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:01,460 INFO L225 Difference]: With dead ends: 543 [2021-10-13 07:53:01,460 INFO L226 Difference]: Without dead ends: 543 [2021-10-13 07:53:01,460 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 37.8ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:53:01,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2021-10-13 07:53:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 527. [2021-10-13 07:53:01,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 517 states have (on average 1.2746615087040618) internal successors, (659), 526 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:01,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 659 transitions. [2021-10-13 07:53:01,473 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 659 transitions. Word has length 35 [2021-10-13 07:53:01,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:01,473 INFO L470 AbstractCegarLoop]: Abstraction has 527 states and 659 transitions. [2021-10-13 07:53:01,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:01,474 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 659 transitions. [2021-10-13 07:53:01,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-13 07:53:01,475 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:01,475 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:01,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:01,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:01,687 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:01,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:01,688 INFO L82 PathProgramCache]: Analyzing trace with hash -759040003, now seen corresponding path program 1 times [2021-10-13 07:53:01,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:01,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481393253] [2021-10-13 07:53:01,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:01,689 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:01,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:01,690 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:01,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-13 07:53:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:02,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:53:02,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:02,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:02,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:02,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:02,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:02,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481393253] [2021-10-13 07:53:02,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481393253] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:02,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:02,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:53:02,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478179948] [2021-10-13 07:53:02,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:53:02,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:02,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:53:02,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:53:02,270 INFO L87 Difference]: Start difference. First operand 527 states and 659 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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) [2021-10-13 07:53:02,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:02,377 INFO L93 Difference]: Finished difference Result 526 states and 650 transitions. [2021-10-13 07:53:02,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:53:02,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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 [2021-10-13 07:53:02,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:02,385 INFO L225 Difference]: With dead ends: 526 [2021-10-13 07:53:02,385 INFO L226 Difference]: Without dead ends: 526 [2021-10-13 07:53:02,386 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:53:02,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-10-13 07:53:02,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 520. [2021-10-13 07:53:02,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 511 states have (on average 1.264187866927593) internal successors, (646), 519 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:02,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 646 transitions. [2021-10-13 07:53:02,405 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 646 transitions. Word has length 35 [2021-10-13 07:53:02,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:02,405 INFO L470 AbstractCegarLoop]: Abstraction has 520 states and 646 transitions. [2021-10-13 07:53:02,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 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) [2021-10-13 07:53:02,406 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 646 transitions. [2021-10-13 07:53:02,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 07:53:02,407 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:02,407 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:02,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:02,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:02,620 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:02,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1588705385, now seen corresponding path program 1 times [2021-10-13 07:53:02,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:02,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038473644] [2021-10-13 07:53:02,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:02,620 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:02,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:02,621 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:02,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-10-13 07:53:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:02,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:53:02,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:03,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:03,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:03,184 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:03,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038473644] [2021-10-13 07:53:03,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038473644] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:03,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:03,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:53:03,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736224372] [2021-10-13 07:53:03,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:53:03,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:03,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:53:03,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:53:03,187 INFO L87 Difference]: Start difference. First operand 520 states and 646 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 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) [2021-10-13 07:53:03,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:03,217 INFO L93 Difference]: Finished difference Result 581 states and 718 transitions. [2021-10-13 07:53:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:53:03,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 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 [2021-10-13 07:53:03,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:03,221 INFO L225 Difference]: With dead ends: 581 [2021-10-13 07:53:03,221 INFO L226 Difference]: Without dead ends: 581 [2021-10-13 07:53:03,221 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:53:03,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2021-10-13 07:53:03,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 508. [2021-10-13 07:53:03,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 502 states have (on average 1.250996015936255) internal successors, (628), 507 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:03,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 628 transitions. [2021-10-13 07:53:03,233 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 628 transitions. Word has length 36 [2021-10-13 07:53:03,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:03,234 INFO L470 AbstractCegarLoop]: Abstraction has 508 states and 628 transitions. [2021-10-13 07:53:03,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 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) [2021-10-13 07:53:03,236 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 628 transitions. [2021-10-13 07:53:03,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 07:53:03,237 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:03,237 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:03,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:03,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:03,450 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:03,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:03,450 INFO L82 PathProgramCache]: Analyzing trace with hash -949179113, now seen corresponding path program 1 times [2021-10-13 07:53:03,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:03,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112960097] [2021-10-13 07:53:03,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:03,451 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:03,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:03,452 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:03,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-10-13 07:53:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:03,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:53:03,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:03,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:03,980 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:03,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112960097] [2021-10-13 07:53:03,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112960097] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:03,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:03,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 07:53:03,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939358692] [2021-10-13 07:53:03,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:53:03,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:03,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:53:03,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:53:03,982 INFO L87 Difference]: Start difference. First operand 508 states and 628 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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) [2021-10-13 07:53:04,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:04,009 INFO L93 Difference]: Finished difference Result 512 states and 625 transitions. [2021-10-13 07:53:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:53:04,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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 [2021-10-13 07:53:04,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:04,012 INFO L225 Difference]: With dead ends: 512 [2021-10-13 07:53:04,013 INFO L226 Difference]: Without dead ends: 512 [2021-10-13 07:53:04,013 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:53:04,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-10-13 07:53:04,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 490. [2021-10-13 07:53:04,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 484 states have (on average 1.25) internal successors, (605), 489 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:04,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 605 transitions. [2021-10-13 07:53:04,031 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 605 transitions. Word has length 36 [2021-10-13 07:53:04,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:04,031 INFO L470 AbstractCegarLoop]: Abstraction has 490 states and 605 transitions. [2021-10-13 07:53:04,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 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) [2021-10-13 07:53:04,032 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 605 transitions. [2021-10-13 07:53:04,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 07:53:04,033 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:04,033 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:04,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:04,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:04,245 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:04,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:04,246 INFO L82 PathProgramCache]: Analyzing trace with hash -2037812492, now seen corresponding path program 1 times [2021-10-13 07:53:04,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:04,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667076828] [2021-10-13 07:53:04,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:04,246 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:04,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:04,247 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:04,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-13 07:53:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:04,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:53:04,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:04,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:04,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:04,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:04,918 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:04,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667076828] [2021-10-13 07:53:04,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [667076828] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:04,918 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:04,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2021-10-13 07:53:04,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402067200] [2021-10-13 07:53:04,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-13 07:53:04,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:04,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-13 07:53:04,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-13 07:53:04,919 INFO L87 Difference]: Start difference. First operand 490 states and 605 transitions. Second operand has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 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) [2021-10-13 07:53:05,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:05,384 INFO L93 Difference]: Finished difference Result 763 states and 926 transitions. [2021-10-13 07:53:05,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 07:53:05,385 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 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 36 [2021-10-13 07:53:05,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:05,388 INFO L225 Difference]: With dead ends: 763 [2021-10-13 07:53:05,389 INFO L226 Difference]: Without dead ends: 746 [2021-10-13 07:53:05,389 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 172.4ms TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-10-13 07:53:05,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-10-13 07:53:05,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 495. [2021-10-13 07:53:05,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 489 states have (on average 1.2453987730061349) internal successors, (609), 494 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:05,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 609 transitions. [2021-10-13 07:53:05,409 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 609 transitions. Word has length 36 [2021-10-13 07:53:05,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:05,409 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 609 transitions. [2021-10-13 07:53:05,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 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) [2021-10-13 07:53:05,410 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 609 transitions. [2021-10-13 07:53:05,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 07:53:05,411 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:05,412 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:05,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:05,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:05,624 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:05,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:05,625 INFO L82 PathProgramCache]: Analyzing trace with hash -187266092, now seen corresponding path program 1 times [2021-10-13 07:53:05,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:05,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499998220] [2021-10-13 07:53:05,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:05,625 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:05,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:05,626 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:05,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-10-13 07:53:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:06,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:53:06,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:06,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:06,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:06,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:06,417 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:06,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499998220] [2021-10-13 07:53:06,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499998220] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:06,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:06,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:53:06,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213033454] [2021-10-13 07:53:06,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:53:06,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:06,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:53:06,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:53:06,418 INFO L87 Difference]: Start difference. First operand 495 states and 609 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:06,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:06,569 INFO L93 Difference]: Finished difference Result 497 states and 609 transitions. [2021-10-13 07:53:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:53:06,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 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 [2021-10-13 07:53:06,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:06,572 INFO L225 Difference]: With dead ends: 497 [2021-10-13 07:53:06,572 INFO L226 Difference]: Without dead ends: 476 [2021-10-13 07:53:06,572 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 38.6ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:53:06,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-10-13 07:53:06,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2021-10-13 07:53:06,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 470 states have (on average 1.248936170212766) internal successors, (587), 475 states have internal predecessors, (587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:06,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 587 transitions. [2021-10-13 07:53:06,581 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 587 transitions. Word has length 37 [2021-10-13 07:53:06,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:06,582 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 587 transitions. [2021-10-13 07:53:06,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 587 transitions. [2021-10-13 07:53:06,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-13 07:53:06,583 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:06,583 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:06,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:06,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:06,795 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:06,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:06,796 INFO L82 PathProgramCache]: Analyzing trace with hash -475644176, now seen corresponding path program 1 times [2021-10-13 07:53:06,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:06,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610557771] [2021-10-13 07:53:06,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:06,796 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:06,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:06,797 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:06,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-10-13 07:53:07,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:07,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:53:07,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:07,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:07,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:07,420 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:07,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610557771] [2021-10-13 07:53:07,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610557771] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:07,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:07,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:53:07,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217466681] [2021-10-13 07:53:07,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:53:07,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:07,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:53:07,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:53:07,423 INFO L87 Difference]: Start difference. First operand 476 states and 587 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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) [2021-10-13 07:53:07,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:07,453 INFO L93 Difference]: Finished difference Result 571 states and 693 transitions. [2021-10-13 07:53:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:53:07,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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 38 [2021-10-13 07:53:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:07,456 INFO L225 Difference]: With dead ends: 571 [2021-10-13 07:53:07,456 INFO L226 Difference]: Without dead ends: 571 [2021-10-13 07:53:07,456 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:53:07,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2021-10-13 07:53:07,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 477. [2021-10-13 07:53:07,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 471 states have (on average 1.2484076433121019) internal successors, (588), 476 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:07,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 588 transitions. [2021-10-13 07:53:07,467 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 588 transitions. Word has length 38 [2021-10-13 07:53:07,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:07,467 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 588 transitions. [2021-10-13 07:53:07,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 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) [2021-10-13 07:53:07,467 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 588 transitions. [2021-10-13 07:53:07,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-10-13 07:53:07,469 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:07,469 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:07,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:07,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:07,682 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:07,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:07,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1329794158, now seen corresponding path program 1 times [2021-10-13 07:53:07,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:07,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611818778] [2021-10-13 07:53:07,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:07,683 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:07,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:07,684 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:07,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-10-13 07:53:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:08,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:53:08,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:08,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:08,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:08,281 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:08,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611818778] [2021-10-13 07:53:08,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611818778] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:08,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:08,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 07:53:08,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212033582] [2021-10-13 07:53:08,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:53:08,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:08,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:53:08,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:53:08,283 INFO L87 Difference]: Start difference. First operand 477 states and 588 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 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) [2021-10-13 07:53:08,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:08,413 INFO L93 Difference]: Finished difference Result 662 states and 791 transitions. [2021-10-13 07:53:08,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:53:08,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 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 38 [2021-10-13 07:53:08,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:08,416 INFO L225 Difference]: With dead ends: 662 [2021-10-13 07:53:08,416 INFO L226 Difference]: Without dead ends: 662 [2021-10-13 07:53:08,416 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.0ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:53:08,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-10-13 07:53:08,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 477. [2021-10-13 07:53:08,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 471 states have (on average 1.2399150743099787) internal successors, (584), 476 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:08,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 584 transitions. [2021-10-13 07:53:08,426 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 584 transitions. Word has length 38 [2021-10-13 07:53:08,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:08,426 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 584 transitions. [2021-10-13 07:53:08,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 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) [2021-10-13 07:53:08,427 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 584 transitions. [2021-10-13 07:53:08,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-13 07:53:08,428 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:08,428 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:08,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:08,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:08,640 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:08,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:08,641 INFO L82 PathProgramCache]: Analyzing trace with hash 595887759, now seen corresponding path program 1 times [2021-10-13 07:53:08,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:08,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400061152] [2021-10-13 07:53:08,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:08,641 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:08,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:08,642 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:08,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-10-13 07:53:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:09,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:53:09,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:09,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:09,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:09,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:09,298 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:09,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400061152] [2021-10-13 07:53:09,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400061152] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:09,299 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:09,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 07:53:09,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698571363] [2021-10-13 07:53:09,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:53:09,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:09,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:53:09,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:53:09,301 INFO L87 Difference]: Start difference. First operand 477 states and 584 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) [2021-10-13 07:53:09,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:09,453 INFO L93 Difference]: Finished difference Result 810 states and 989 transitions. [2021-10-13 07:53:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:53:09,453 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 [2021-10-13 07:53:09,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:09,456 INFO L225 Difference]: With dead ends: 810 [2021-10-13 07:53:09,456 INFO L226 Difference]: Without dead ends: 810 [2021-10-13 07:53:09,457 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:53:09,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2021-10-13 07:53:09,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 477. [2021-10-13 07:53:09,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 471 states have (on average 1.237791932059448) internal successors, (583), 476 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:09,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 583 transitions. [2021-10-13 07:53:09,471 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 583 transitions. Word has length 41 [2021-10-13 07:53:09,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:09,471 INFO L470 AbstractCegarLoop]: Abstraction has 477 states and 583 transitions. [2021-10-13 07:53:09,471 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) [2021-10-13 07:53:09,471 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 583 transitions. [2021-10-13 07:53:09,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-10-13 07:53:09,472 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:09,473 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:09,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:09,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:09,685 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:09,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:09,686 INFO L82 PathProgramCache]: Analyzing trace with hash 768333102, now seen corresponding path program 1 times [2021-10-13 07:53:09,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:09,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1999075567] [2021-10-13 07:53:09,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:09,686 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:09,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:09,687 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:09,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-10-13 07:53:10,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:10,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:53:10,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:10,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:10,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:10,476 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:10,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1999075567] [2021-10-13 07:53:10,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1999075567] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:10,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:10,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-10-13 07:53:10,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408665002] [2021-10-13 07:53:10,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 07:53:10,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:10,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 07:53:10,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-13 07:53:10,478 INFO L87 Difference]: Start difference. First operand 477 states and 583 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:10,985 INFO L93 Difference]: Finished difference Result 753 states and 905 transitions. [2021-10-13 07:53:10,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-13 07:53:10,986 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 0 states have call successors, (0), 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 [2021-10-13 07:53:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:10,988 INFO L225 Difference]: With dead ends: 753 [2021-10-13 07:53:10,988 INFO L226 Difference]: Without dead ends: 573 [2021-10-13 07:53:10,988 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 273.7ms TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2021-10-13 07:53:10,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2021-10-13 07:53:10,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 367. [2021-10-13 07:53:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 362 states have (on average 1.2375690607734806) internal successors, (448), 366 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) [2021-10-13 07:53:10,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 448 transitions. [2021-10-13 07:53:10,996 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 448 transitions. Word has length 41 [2021-10-13 07:53:10,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:10,996 INFO L470 AbstractCegarLoop]: Abstraction has 367 states and 448 transitions. [2021-10-13 07:53:10,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:10,996 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 448 transitions. [2021-10-13 07:53:10,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-13 07:53:10,997 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:10,997 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:11,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:11,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:11,210 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:11,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:11,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1022149612, now seen corresponding path program 1 times [2021-10-13 07:53:11,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:11,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429604028] [2021-10-13 07:53:11,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:11,211 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:11,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:11,212 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:11,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-10-13 07:53:11,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:11,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:53:11,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:11,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:11,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:11,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:11,900 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:11,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429604028] [2021-10-13 07:53:11,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429604028] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:11,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:11,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:53:11,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780844066] [2021-10-13 07:53:11,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:53:11,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:11,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:53:11,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:53:11,903 INFO L87 Difference]: Start difference. First operand 367 states and 448 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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) [2021-10-13 07:53:11,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:11,975 INFO L93 Difference]: Finished difference Result 329 states and 399 transitions. [2021-10-13 07:53:11,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:53:11,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 45 [2021-10-13 07:53:11,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:11,978 INFO L225 Difference]: With dead ends: 329 [2021-10-13 07:53:11,978 INFO L226 Difference]: Without dead ends: 329 [2021-10-13 07:53:11,978 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:53:11,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-10-13 07:53:11,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2021-10-13 07:53:11,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 326 states have (on average 1.2239263803680982) internal successors, (399), 328 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) [2021-10-13 07:53:11,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 399 transitions. [2021-10-13 07:53:11,983 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 399 transitions. Word has length 45 [2021-10-13 07:53:11,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:11,983 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 399 transitions. [2021-10-13 07:53:11,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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) [2021-10-13 07:53:11,984 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 399 transitions. [2021-10-13 07:53:11,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-13 07:53:11,985 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:11,985 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:12,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:12,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:12,199 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:12,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:12,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1401867196, now seen corresponding path program 1 times [2021-10-13 07:53:12,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:12,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418572885] [2021-10-13 07:53:12,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:12,200 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:12,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:12,201 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:12,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-10-13 07:53:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:12,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:53:12,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:12,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:12,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:12,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:12,945 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:12,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418572885] [2021-10-13 07:53:12,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1418572885] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:12,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:12,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:53:12,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788958996] [2021-10-13 07:53:12,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:53:12,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:12,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:53:12,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:53:12,947 INFO L87 Difference]: Start difference. First operand 329 states and 399 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:12,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:12,966 INFO L93 Difference]: Finished difference Result 437 states and 529 transitions. [2021-10-13 07:53:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:53:12,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 52 [2021-10-13 07:53:12,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:12,968 INFO L225 Difference]: With dead ends: 437 [2021-10-13 07:53:12,968 INFO L226 Difference]: Without dead ends: 437 [2021-10-13 07:53:12,968 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:53:12,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-10-13 07:53:12,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 329. [2021-10-13 07:53:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 326 states have (on average 1.2116564417177915) internal successors, (395), 328 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) [2021-10-13 07:53:12,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 395 transitions. [2021-10-13 07:53:12,975 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 395 transitions. Word has length 52 [2021-10-13 07:53:12,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:12,975 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 395 transitions. [2021-10-13 07:53:12,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:12,975 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 395 transitions. [2021-10-13 07:53:12,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-13 07:53:12,976 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:12,977 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:13,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:13,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:13,189 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:13,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:13,190 INFO L82 PathProgramCache]: Analyzing trace with hash -605199811, now seen corresponding path program 1 times [2021-10-13 07:53:13,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:13,190 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659876250] [2021-10-13 07:53:13,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:13,190 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:13,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:13,191 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:13,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-10-13 07:53:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:13,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 07:53:13,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:13,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:13,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:14,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:14,011 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:14,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659876250] [2021-10-13 07:53:14,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659876250] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:14,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:14,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-13 07:53:14,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323173878] [2021-10-13 07:53:14,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 07:53:14,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:14,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 07:53:14,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-10-13 07:53:14,013 INFO L87 Difference]: Start difference. First operand 329 states and 395 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:14,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:14,465 INFO L93 Difference]: Finished difference Result 564 states and 670 transitions. [2021-10-13 07:53:14,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 07:53:14,465 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 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 52 [2021-10-13 07:53:14,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:14,467 INFO L225 Difference]: With dead ends: 564 [2021-10-13 07:53:14,467 INFO L226 Difference]: Without dead ends: 548 [2021-10-13 07:53:14,468 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 270.8ms TimeCoverageRelationStatistics Valid=199, Invalid=503, Unknown=0, NotChecked=0, Total=702 [2021-10-13 07:53:14,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2021-10-13 07:53:14,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 323. [2021-10-13 07:53:14,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 320 states have (on average 1.2125) internal successors, (388), 322 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:14,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 388 transitions. [2021-10-13 07:53:14,477 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 388 transitions. Word has length 52 [2021-10-13 07:53:14,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:14,477 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 388 transitions. [2021-10-13 07:53:14,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:14,478 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 388 transitions. [2021-10-13 07:53:14,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-13 07:53:14,479 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:14,479 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:14,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (34)] Ended with exit code 0 [2021-10-13 07:53:14,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:14,693 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:14,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:14,693 INFO L82 PathProgramCache]: Analyzing trace with hash -158719954, now seen corresponding path program 1 times [2021-10-13 07:53:14,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:14,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1325780749] [2021-10-13 07:53:14,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:14,694 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:14,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:14,695 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:14,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-10-13 07:53:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:53:15,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:53:15,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:53:15,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:15,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:53:15,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:53:15,487 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:53:15,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1325780749] [2021-10-13 07:53:15,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1325780749] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:53:15,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:53:15,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:53:15,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389980950] [2021-10-13 07:53:15,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:53:15,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:53:15,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:53:15,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:53:15,488 INFO L87 Difference]: Start difference. First operand 323 states and 388 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2021-10-13 07:53:15,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:53:15,503 INFO L93 Difference]: Finished difference Result 323 states and 386 transitions. [2021-10-13 07:53:15,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:53:15,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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 53 [2021-10-13 07:53:15,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:53:15,504 INFO L225 Difference]: With dead ends: 323 [2021-10-13 07:53:15,504 INFO L226 Difference]: Without dead ends: 323 [2021-10-13 07:53:15,505 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:53:15,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-10-13 07:53:15,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-10-13 07:53:15,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 320 states have (on average 1.20625) internal successors, (386), 322 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:53:15,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 386 transitions. [2021-10-13 07:53:15,510 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 386 transitions. Word has length 53 [2021-10-13 07:53:15,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:53:15,510 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 386 transitions. [2021-10-13 07:53:15,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 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) [2021-10-13 07:53:15,511 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 386 transitions. [2021-10-13 07:53:15,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-13 07:53:15,512 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:53:15,512 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:53:15,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (35)] Ended with exit code 0 [2021-10-13 07:53:15,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:15,725 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 39 more)] === [2021-10-13 07:53:15,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:53:15,725 INFO L82 PathProgramCache]: Analyzing trace with hash 273758220, now seen corresponding path program 1 times [2021-10-13 07:53:15,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:53:15,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387506996] [2021-10-13 07:53:15,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:53:15,726 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:53:15,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:53:15,727 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:53:15,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-10-13 07:53:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:53:16,297 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:53:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:53:16,502 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 07:53:16,503 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:53:16,504 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,506 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,507 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,508 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,509 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,510 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,512 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,513 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONMEMORY_LEAK [2021-10-13 07:53:16,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-10-13 07:53:16,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:53:16,733 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:53:16,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:16 BoogieIcfgContainer [2021-10-13 07:53:16,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:53:16,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:53:16,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:53:16,859 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:53:16,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:44" (3/4) ... [2021-10-13 07:53:16,863 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:53:16,864 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:53:16,865 INFO L168 Benchmark]: Toolchain (without parser) took 34965.16 ms. Allocated memory was 65.0 MB in the beginning and 151.0 MB in the end (delta: 86.0 MB). Free memory was 43.7 MB in the beginning and 89.5 MB in the end (delta: -45.8 MB). Peak memory consumption was 41.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:53:16,866 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory is still 46.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:53:16,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.20 ms. Allocated memory is still 65.0 MB. Free memory was 43.5 MB in the beginning and 38.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:53:16,867 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.68 ms. Allocated memory is still 65.0 MB. Free memory was 38.3 MB in the beginning and 31.2 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:53:16,867 INFO L168 Benchmark]: Boogie Preprocessor took 102.82 ms. Allocated memory was 65.0 MB in the beginning and 102.8 MB in the end (delta: 37.7 MB). Free memory was 31.2 MB in the beginning and 79.6 MB in the end (delta: -48.5 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:53:16,868 INFO L168 Benchmark]: RCFGBuilder took 1588.48 ms. Allocated memory is still 102.8 MB. Free memory was 79.6 MB in the beginning and 53.1 MB in the end (delta: 26.5 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:53:16,868 INFO L168 Benchmark]: TraceAbstraction took 32583.60 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 52.6 MB in the beginning and 89.5 MB in the end (delta: -36.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:53:16,868 INFO L168 Benchmark]: Witness Printer took 5.03 ms. Allocated memory is still 151.0 MB. Free memory is still 89.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:53:16,871 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory is still 46.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 549.20 ms. Allocated memory is still 65.0 MB. Free memory was 43.5 MB in the beginning and 38.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 129.68 ms. Allocated memory is still 65.0 MB. Free memory was 38.3 MB in the beginning and 31.2 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 102.82 ms. Allocated memory was 65.0 MB in the beginning and 102.8 MB in the end (delta: 37.7 MB). Free memory was 31.2 MB in the beginning and 79.6 MB in the end (delta: -48.5 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1588.48 ms. Allocated memory is still 102.8 MB. Free memory was 79.6 MB in the beginning and 53.1 MB in the end (delta: 26.5 MB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 32583.60 ms. Allocated memory was 102.8 MB in the beginning and 151.0 MB in the end (delta: 48.2 MB). Free memory was 52.6 MB in the beginning and 89.5 MB in the end (delta: -36.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.03 ms. Allocated memory is still 151.0 MB. Free memory is still 89.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 65. Possible FailurePath: [L36] int FloppyThread ; [L37] int KernelMode ; [L38] int Suspended ; [L39] int Executive ; [L40] int DiskController ; [L41] int FloppyDiskPeripheral ; [L42] int FlConfigCallBack ; [L43] int MaximumInterfaceType ; [L44] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L45] int myStatus ; [L46] int s ; [L47] int UNLOADED ; [L48] int NP ; [L49] int DC ; [L50] int SKIP1 ; [L51] int SKIP2 ; [L52] int MPR1 ; [L53] int MPR3 ; [L54] int IPC ; [L55] int pended ; [L56] int compRegistered ; [L57] int lowerDriverReturn ; [L58] int setEventCalled ; [L59] int customIrp ; [L91] int PagingReferenceCount = 0; [L92] 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] [L671] int status ; [L672] int irp = __VERIFIER_nondet_int() ; [L673] int pirp ; [L674] int pirp__IoStatus__Status ; [L675] int irp_choice = __VERIFIER_nondet_int() ; [L676] int devobj = __VERIFIER_nondet_int() ; [L677] int __cil_tmp8 ; [L679] FloppyThread = 0 [L680] KernelMode = 0 [L681] Suspended = 0 [L682] Executive = 0 [L683] DiskController = 0 [L684] FloppyDiskPeripheral = 0 [L685] FlConfigCallBack = 0 [L686] MaximumInterfaceType = 0 [L687] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L688] myStatus = 0 [L689] s = 0 [L690] UNLOADED = 0 [L691] NP = 0 [L692] DC = 0 [L693] SKIP1 = 0 [L694] SKIP2 = 0 [L695] MPR1 = 0 [L696] MPR3 = 0 [L697] IPC = 0 [L698] pended = 0 [L699] compRegistered = 0 [L700] lowerDriverReturn = 0 [L701] setEventCalled = 0 [L702] customIrp = 0 [L706] status = 0 [L707] pirp = irp [L74] UNLOADED = 0 [L75] NP = 1 [L76] DC = 2 [L77] SKIP1 = 3 [L78] SKIP2 = 4 [L79] MPR1 = 5 [L80] MPR3 = 6 [L81] IPC = 7 [L82] s = UNLOADED [L83] pended = 0 [L84] compRegistered = 0 [L85] lowerDriverReturn = 0 [L86] setEventCalled = 0 [L87] 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] [L710] COND TRUE status >= 0 [L711] s = NP [L712] customIrp = 0 [L713] setEventCalled = customIrp [L714] lowerDriverReturn = setEventCalled [L715] compRegistered = lowerDriverReturn [L716] pended = compRegistered [L717] pirp__IoStatus__Status = 0 [L718] 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] [L719] COND TRUE irp_choice == 0 [L720] pirp__IoStatus__Status = -1073741637 [L721] 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] [L661] s = NP [L662] pended = 0 [L663] compRegistered = 0 [L664] lowerDriverReturn = 0 [L665] setEventCalled = 0 [L666] 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] [L727] COND FALSE !(status < 0) [L731] int tmp_ndt_1; [L732] tmp_ndt_1 = __VERIFIER_nondet_int() [L733] COND TRUE tmp_ndt_1 == 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] [L164] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L165] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L166] int Irp__IoStatus__Information ; [L167] int Irp__IoStatus__Status ; [L168] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L169] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L170] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L171] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L172] int disketteExtension__HoldNewRequests ; [L173] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L174] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L175] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L176] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L177] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L178] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L179] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L180] int irpSp ; [L181] int disketteExtension ; [L182] int ntStatus ; [L183] int doneEvent = __VERIFIER_nondet_int() ; [L184] int irpSp___0 ; [L185] int nextIrpSp ; [L186] int nextIrpSp__Control ; [L187] int irpSp___1 ; [L188] int irpSp__Context ; [L189] int irpSp__Control ; [L190] long __cil_tmp29 ; [L191] long __cil_tmp30 ; [L194] ntStatus = 0 [L195] 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] [L196] 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] [L199] disketteExtension = DeviceObject__DeviceExtension [L200] 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] [L201] 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] [L210] 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] [L213] 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 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] [L242] COND FALSE !(! disketteExtension__IsStarted) [L258] disketteExtension__HoldNewRequests = 1 [L101] int status ; [L102] int threadHandle = __VERIFIER_nondet_int() ; [L103] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L104] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L105] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L106] int Irp__IoStatus__Status ; [L107] int Irp__IoStatus__Information ; [L108] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L109] int ObjAttributes = __VERIFIER_nondet_int() ; [L110] int __cil_tmp12 ; [L111] 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] [L114] COND FALSE !(DisketteExtension__PoweringDown == 1) [L120] 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] [L121] 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] [L153] COND TRUE pended == 0 [L154] 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] [L160] 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] [L259] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L262] __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] [L263] COND TRUE __cil_tmp29 == 259L [L1036] 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] [L1045] 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] [L1049] 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] [L1056] int tmp_ndt_8; [L1057] tmp_ndt_8 = __VERIFIER_nondet_int() [L1058] COND TRUE tmp_ndt_8 == 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] [L1064] 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] [L268] 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] [L271] disketteExtension__FloppyThread = 0 [L272] Irp__IoStatus__Status = 0 [L273] 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] [L274] COND TRUE s == NP [L275] 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] [L282] Irp__CurrentLocation ++ [L283] Irp__Tail__Overlay__CurrentStackLocation ++ [L938] int returnVal2 ; [L939] int compRetStatus1 ; [L940] int lcontext = __VERIFIER_nondet_int() ; [L941] 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] [L944] 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] [L957] int tmp_ndt_12; [L958] tmp_ndt_12 = __VERIFIER_nondet_int() [L959] 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=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L970] 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] [L983] 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] [L987] 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] [L996] COND TRUE s == SKIP1 [L997] s = SKIP2 [L998] 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] [L1006] 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] [L284] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L430] 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] [L431] 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] [L434] 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] [L740] status = FloppyPnp(devobj, pirp) [L750] 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] [L751] 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] [L758] 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] [L759] 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] [L766] 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] [L767] 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] [L768] 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] [L782] 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] [L783] 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] [L65] 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: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 670]: 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, 422 locations, 42 error locations. Started 1 CEGAR loops. OverallTime: 32400.9ms, OverallIterations: 35, TraceHistogramMax: 1, EmptinessCheckTime: 60.6ms, AutomataDifference: 5864.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 14860 SDtfs, 17917 SDslu, 22749 SDs, 0 SdLazy, 3861 SolverSat, 700 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3543.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2083 GetRequests, 1917 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1248.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=628occurred in iteration=8, InterpolantAutomatonStates: 179, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 552.2ms AutomataMinimizationTime, 34 MinimizatonAttempts, 2575 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 631.7ms SsaConstructionTime, 1448.2ms SatisfiabilityAnalysisTime, 7344.7ms InterpolantComputationTime, 1097 NumberOfCodeBlocks, 1097 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 2016 ConstructedInterpolants, 0 QuantifiedInterpolants, 4655 SizeOfPredicates, 49 NumberOfNonLiveVariables, 4969 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 68 InterpolantComputations, 68 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 [2021-10-13 07:53:16,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ee3b857-32a8-486b-94ec-23af809366b4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...