./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:06:37,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:06:37,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:06:37,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:06:37,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:06:37,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:06:37,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:06:37,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:06:37,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:06:37,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:06:37,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:06:37,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:06:37,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:06:37,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:06:37,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:06:37,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:06:37,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:06:37,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:06:37,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:06:37,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:06:37,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:06:37,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:06:37,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:06:37,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:06:37,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:06:37,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:06:37,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:06:37,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:06:37,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:06:37,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:06:37,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:06:37,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:06:37,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:06:37,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:06:37,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:06:37,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:06:37,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:06:37,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:06:37,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:06:37,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:06:37,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:06:37,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-29 05:06:37,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:06:37,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:06:37,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:06:37,421 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:06:37,421 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:06:37,421 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:06:37,421 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:06:37,422 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:06:37,422 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:06:37,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:06:37,422 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:06:37,422 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:06:37,423 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:06:37,423 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:06:37,423 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:06:37,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 05:06:37,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 05:06:37,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:06:37,425 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:06:37,425 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:06:37,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:06:37,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:06:37,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:06:37,426 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 05:06:37,426 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 05:06:37,426 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 05:06:37,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:06:37,431 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:06:37,432 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:06:37,432 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:06:37,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:06:37,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:06:37,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:06:37,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:06:37,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:06:37,434 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:06:37,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:06:37,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:06:37,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:06:37,435 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_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde [2021-10-29 05:06:37,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:06:37,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:06:37,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:06:37,820 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:06:37,823 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:06:37,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-10-29 05:06:37,925 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/data/34ba4a739/d64e197acfe64a6391a3f313765593e7/FLAGdefd657ef [2021-10-29 05:06:38,606 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:06:38,607 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-10-29 05:06:38,647 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/data/34ba4a739/d64e197acfe64a6391a3f313765593e7/FLAGdefd657ef [2021-10-29 05:06:38,872 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/data/34ba4a739/d64e197acfe64a6391a3f313765593e7 [2021-10-29 05:06:38,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:06:38,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:06:38,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:06:38,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:06:38,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:06:38,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:06:38" (1/1) ... [2021-10-29 05:06:38,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6189b868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:38, skipping insertion in model container [2021-10-29 05:06:38,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:06:38" (1/1) ... [2021-10-29 05:06:38,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:06:38,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:06:39,311 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_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-10-29 05:06:39,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:06:39,327 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:06:39,435 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_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-10-29 05:06:39,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:06:39,453 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:06:39,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39 WrapperNode [2021-10-29 05:06:39,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:06:39,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:06:39,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:06:39,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:06:39,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39" (1/1) ... [2021-10-29 05:06:39,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39" (1/1) ... [2021-10-29 05:06:39,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:06:39,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:06:39,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:06:39,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:06:39,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39" (1/1) ... [2021-10-29 05:06:39,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39" (1/1) ... [2021-10-29 05:06:39,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39" (1/1) ... [2021-10-29 05:06:39,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39" (1/1) ... [2021-10-29 05:06:39,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39" (1/1) ... [2021-10-29 05:06:39,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39" (1/1) ... [2021-10-29 05:06:39,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39" (1/1) ... [2021-10-29 05:06:39,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:06:39,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:06:39,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:06:39,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:06:39,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39" (1/1) ... [2021-10-29 05:06:39,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:06:39,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:06:39,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:06:39,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:06:39,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:06:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:06:39,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:06:39,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:06:40,020 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:40,031 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:40,045 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:40,060 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:40,069 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:40,075 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:40,086 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:40,095 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:40,105 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:40,111 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:40,118 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:40,137 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:41,150 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-10-29 05:06:41,150 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-10-29 05:06:41,150 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2021-10-29 05:06:41,151 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2021-10-29 05:06:41,151 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##219: assume false; [2021-10-29 05:06:41,151 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume !false; [2021-10-29 05:06:41,151 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2021-10-29 05:06:41,152 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2021-10-29 05:06:41,152 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##322: assume !false; [2021-10-29 05:06:41,152 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##321: assume false; [2021-10-29 05:06:41,152 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-29 05:06:41,153 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-29 05:06:41,153 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##191: assume false; [2021-10-29 05:06:41,153 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume !false; [2021-10-29 05:06:41,153 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume !false; [2021-10-29 05:06:41,154 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume false; [2021-10-29 05:06:41,154 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume false; [2021-10-29 05:06:41,154 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume !false; [2021-10-29 05:06:41,154 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##389: assume !false; [2021-10-29 05:06:41,154 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##388: assume false; [2021-10-29 05:06:41,155 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-10-29 05:06:41,155 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-10-29 05:06:41,155 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume !false; [2021-10-29 05:06:41,155 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume false; [2021-10-29 05:06:42,043 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:06:42,044 INFO L299 CfgBuilder]: Removed 154 assume(true) statements. [2021-10-29 05:06:42,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:06:42 BoogieIcfgContainer [2021-10-29 05:06:42,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:06:42,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:06:42,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:06:42,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:06:42,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:06:38" (1/3) ... [2021-10-29 05:06:42,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e14469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:06:42, skipping insertion in model container [2021-10-29 05:06:42,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:39" (2/3) ... [2021-10-29 05:06:42,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e14469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:06:42, skipping insertion in model container [2021-10-29 05:06:42,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:06:42" (3/3) ... [2021-10-29 05:06:42,060 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2021-10-29 05:06:42,067 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:06:42,068 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-10-29 05:06:42,133 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:06:42,142 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:06:42,143 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-10-29 05:06:42,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 203 states, 171 states have (on average 1.7894736842105263) internal successors, (306), 202 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:42,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 05:06:42,180 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:42,181 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 05:06:42,181 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:42,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:42,188 INFO L85 PathProgramCache]: Analyzing trace with hash 40781817, now seen corresponding path program 1 times [2021-10-29 05:06:42,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:42,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46344997] [2021-10-29 05:06:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:42,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:42,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:42,442 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:42,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46344997] [2021-10-29 05:06:42,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46344997] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:42,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:42,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 05:06:42,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995143956] [2021-10-29 05:06:42,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:42,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:42,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:42,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:42,487 INFO L87 Difference]: Start difference. First operand has 203 states, 171 states have (on average 1.7894736842105263) internal successors, (306), 202 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:42,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:42,546 INFO L93 Difference]: Finished difference Result 206 states and 273 transitions. [2021-10-29 05:06:42,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:42,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-29 05:06:42,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:42,576 INFO L225 Difference]: With dead ends: 206 [2021-10-29 05:06:42,576 INFO L226 Difference]: Without dead ends: 204 [2021-10-29 05:06:42,577 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:42,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-10-29 05:06:42,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 202. [2021-10-29 05:06:42,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 171 states have (on average 1.5789473684210527) internal successors, (270), 201 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:42,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 270 transitions. [2021-10-29 05:06:42,630 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 270 transitions. Word has length 4 [2021-10-29 05:06:42,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:42,631 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 270 transitions. [2021-10-29 05:06:42,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:42,631 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 270 transitions. [2021-10-29 05:06:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:06:42,632 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:42,633 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:42,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:06:42,634 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:42,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:42,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1512371092, now seen corresponding path program 1 times [2021-10-29 05:06:42,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:42,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32155261] [2021-10-29 05:06:42,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:42,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:42,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:42,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:42,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32155261] [2021-10-29 05:06:42,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32155261] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:42,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:42,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-29 05:06:42,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587962426] [2021-10-29 05:06:42,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:42,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:42,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:42,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:42,692 INFO L87 Difference]: Start difference. First operand 202 states and 270 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:42,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:42,706 INFO L93 Difference]: Finished difference Result 201 states and 269 transitions. [2021-10-29 05:06:42,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:42,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 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 [2021-10-29 05:06:42,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:42,713 INFO L225 Difference]: With dead ends: 201 [2021-10-29 05:06:42,717 INFO L226 Difference]: Without dead ends: 199 [2021-10-29 05:06:42,718 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:42,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-10-29 05:06:42,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-10-29 05:06:42,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 169 states have (on average 1.532544378698225) internal successors, (259), 198 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:42,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 259 transitions. [2021-10-29 05:06:42,748 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 259 transitions. Word has length 9 [2021-10-29 05:06:42,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:42,749 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 259 transitions. [2021-10-29 05:06:42,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:42,749 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 259 transitions. [2021-10-29 05:06:42,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 05:06:42,750 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:42,751 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:42,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:06:42,751 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:42,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:42,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1513664685, now seen corresponding path program 1 times [2021-10-29 05:06:42,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:42,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115591413] [2021-10-29 05:06:42,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:42,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:42,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:42,837 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:42,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115591413] [2021-10-29 05:06:42,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115591413] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:42,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:42,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:42,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45780688] [2021-10-29 05:06:42,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:42,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:42,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:42,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:42,840 INFO L87 Difference]: Start difference. First operand 199 states and 259 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) [2021-10-29 05:06:43,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:43,006 INFO L93 Difference]: Finished difference Result 184 states and 244 transitions. [2021-10-29 05:06:43,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:43,007 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 [2021-10-29 05:06:43,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:43,013 INFO L225 Difference]: With dead ends: 184 [2021-10-29 05:06:43,014 INFO L226 Difference]: Without dead ends: 184 [2021-10-29 05:06:43,014 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:43,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-10-29 05:06:43,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2021-10-29 05:06:43,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 164 states have (on average 1.4878048780487805) internal successors, (244), 183 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 244 transitions. [2021-10-29 05:06:43,039 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 244 transitions. Word has length 9 [2021-10-29 05:06:43,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:43,040 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 244 transitions. [2021-10-29 05:06:43,040 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) [2021-10-29 05:06:43,040 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 244 transitions. [2021-10-29 05:06:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:06:43,048 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:43,048 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:43,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-29 05:06:43,050 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:43,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:43,052 INFO L85 PathProgramCache]: Analyzing trace with hash 860871200, now seen corresponding path program 1 times [2021-10-29 05:06:43,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:43,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393854596] [2021-10-29 05:06:43,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:43,053 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:43,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:43,152 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:43,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393854596] [2021-10-29 05:06:43,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393854596] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:43,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:43,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:43,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105584814] [2021-10-29 05:06:43,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:43,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:43,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:43,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:43,155 INFO L87 Difference]: Start difference. First operand 184 states and 244 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:43,198 INFO L93 Difference]: Finished difference Result 190 states and 243 transitions. [2021-10-29 05:06:43,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:43,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 05:06:43,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:43,201 INFO L225 Difference]: With dead ends: 190 [2021-10-29 05:06:43,201 INFO L226 Difference]: Without dead ends: 190 [2021-10-29 05:06:43,202 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:43,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-10-29 05:06:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 154. [2021-10-29 05:06:43,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 142 states have (on average 1.408450704225352) internal successors, (200), 153 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 200 transitions. [2021-10-29 05:06:43,225 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 200 transitions. Word has length 10 [2021-10-29 05:06:43,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:43,225 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 200 transitions. [2021-10-29 05:06:43,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 200 transitions. [2021-10-29 05:06:43,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 05:06:43,227 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:43,227 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:43,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-29 05:06:43,228 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:43,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:43,228 INFO L85 PathProgramCache]: Analyzing trace with hash 890449964, now seen corresponding path program 1 times [2021-10-29 05:06:43,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:43,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359269134] [2021-10-29 05:06:43,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:43,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:43,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:43,302 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:43,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359269134] [2021-10-29 05:06:43,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359269134] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:43,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:43,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:43,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046758867] [2021-10-29 05:06:43,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:43,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:43,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:43,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:43,305 INFO L87 Difference]: Start difference. First operand 154 states and 200 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:43,414 INFO L93 Difference]: Finished difference Result 140 states and 186 transitions. [2021-10-29 05:06:43,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:43,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-29 05:06:43,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:43,424 INFO L225 Difference]: With dead ends: 140 [2021-10-29 05:06:43,424 INFO L226 Difference]: Without dead ends: 140 [2021-10-29 05:06:43,425 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:43,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-29 05:06:43,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-10-29 05:06:43,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 135 states have (on average 1.3777777777777778) internal successors, (186), 139 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 186 transitions. [2021-10-29 05:06:43,432 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 186 transitions. Word has length 15 [2021-10-29 05:06:43,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:43,432 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 186 transitions. [2021-10-29 05:06:43,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,433 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 186 transitions. [2021-10-29 05:06:43,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:06:43,442 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:43,443 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:43,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-29 05:06:43,443 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:43,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:43,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1337662071, now seen corresponding path program 1 times [2021-10-29 05:06:43,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:43,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511002727] [2021-10-29 05:06:43,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:43,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:43,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:43,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:43,543 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:43,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511002727] [2021-10-29 05:06:43,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511002727] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:43,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:43,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:43,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322878679] [2021-10-29 05:06:43,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:43,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:43,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:43,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:43,548 INFO L87 Difference]: Start difference. First operand 140 states and 186 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) [2021-10-29 05:06:43,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:43,567 INFO L93 Difference]: Finished difference Result 158 states and 206 transitions. [2021-10-29 05:06:43,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:43,567 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 [2021-10-29 05:06:43,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:43,569 INFO L225 Difference]: With dead ends: 158 [2021-10-29 05:06:43,569 INFO L226 Difference]: Without dead ends: 158 [2021-10-29 05:06:43,570 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:43,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-29 05:06:43,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 140. [2021-10-29 05:06:43,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 135 states have (on average 1.3703703703703705) internal successors, (185), 139 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 185 transitions. [2021-10-29 05:06:43,575 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 185 transitions. Word has length 18 [2021-10-29 05:06:43,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:43,575 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 185 transitions. [2021-10-29 05:06:43,576 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) [2021-10-29 05:06:43,576 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 185 transitions. [2021-10-29 05:06:43,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:06:43,578 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:43,578 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:43,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-29 05:06:43,580 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:43,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:43,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1961679802, now seen corresponding path program 1 times [2021-10-29 05:06:43,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:43,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619763302] [2021-10-29 05:06:43,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:43,586 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:43,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:43,667 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:43,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619763302] [2021-10-29 05:06:43,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619763302] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:43,667 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:43,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:43,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313247574] [2021-10-29 05:06:43,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:43,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:43,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:43,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:43,669 INFO L87 Difference]: Start difference. First operand 140 states and 185 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) [2021-10-29 05:06:43,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:43,761 INFO L93 Difference]: Finished difference Result 137 states and 181 transitions. [2021-10-29 05:06:43,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:43,762 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 [2021-10-29 05:06:43,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:43,763 INFO L225 Difference]: With dead ends: 137 [2021-10-29 05:06:43,763 INFO L226 Difference]: Without dead ends: 137 [2021-10-29 05:06:43,764 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:43,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-29 05:06:43,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-10-29 05:06:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 133 states have (on average 1.3609022556390977) internal successors, (181), 136 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 181 transitions. [2021-10-29 05:06:43,782 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 181 transitions. Word has length 18 [2021-10-29 05:06:43,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:43,783 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 181 transitions. [2021-10-29 05:06:43,784 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) [2021-10-29 05:06:43,784 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 181 transitions. [2021-10-29 05:06:43,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:06:43,785 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:43,785 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:43,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-29 05:06:43,786 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:43,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:43,786 INFO L85 PathProgramCache]: Analyzing trace with hash 192413782, now seen corresponding path program 1 times [2021-10-29 05:06:43,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:43,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624185387] [2021-10-29 05:06:43,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:43,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:43,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:43,908 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:43,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624185387] [2021-10-29 05:06:43,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624185387] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:43,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:43,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:43,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254639770] [2021-10-29 05:06:43,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:43,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:43,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:43,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:43,916 INFO L87 Difference]: Start difference. First operand 137 states and 181 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:43,932 INFO L93 Difference]: Finished difference Result 153 states and 199 transitions. [2021-10-29 05:06:43,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:43,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-29 05:06:43,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:43,935 INFO L225 Difference]: With dead ends: 153 [2021-10-29 05:06:43,935 INFO L226 Difference]: Without dead ends: 153 [2021-10-29 05:06:43,937 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:43,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-29 05:06:43,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 135. [2021-10-29 05:06:43,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 131 states have (on average 1.3587786259541985) internal successors, (178), 134 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 178 transitions. [2021-10-29 05:06:43,943 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 178 transitions. Word has length 19 [2021-10-29 05:06:43,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:43,944 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 178 transitions. [2021-10-29 05:06:43,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:43,944 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 178 transitions. [2021-10-29 05:06:43,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 05:06:43,945 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:43,946 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:43,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-29 05:06:43,946 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:43,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:43,947 INFO L85 PathProgramCache]: Analyzing trace with hash 408419059, now seen corresponding path program 1 times [2021-10-29 05:06:43,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:43,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911539347] [2021-10-29 05:06:43,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:43,948 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:44,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:44,033 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:44,034 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911539347] [2021-10-29 05:06:44,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911539347] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:44,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:44,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:44,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762436476] [2021-10-29 05:06:44,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:06:44,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:44,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:06:44,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:06:44,036 INFO L87 Difference]: Start difference. First operand 135 states and 178 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) [2021-10-29 05:06:44,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:44,181 INFO L93 Difference]: Finished difference Result 135 states and 177 transitions. [2021-10-29 05:06:44,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:06:44,182 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 [2021-10-29 05:06:44,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:44,183 INFO L225 Difference]: With dead ends: 135 [2021-10-29 05:06:44,184 INFO L226 Difference]: Without dead ends: 135 [2021-10-29 05:06:44,184 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:06:44,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-29 05:06:44,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-10-29 05:06:44,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 131 states have (on average 1.3511450381679388) internal successors, (177), 134 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 177 transitions. [2021-10-29 05:06:44,188 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 177 transitions. Word has length 20 [2021-10-29 05:06:44,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:44,189 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 177 transitions. [2021-10-29 05:06:44,189 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) [2021-10-29 05:06:44,189 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 177 transitions. [2021-10-29 05:06:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 05:06:44,190 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:44,190 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:44,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-29 05:06:44,192 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:44,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:44,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1830156984, now seen corresponding path program 1 times [2021-10-29 05:06:44,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:44,194 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395251340] [2021-10-29 05:06:44,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:44,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:44,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:44,241 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:44,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395251340] [2021-10-29 05:06:44,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395251340] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:44,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:44,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:44,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257256982] [2021-10-29 05:06:44,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:44,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:44,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:44,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:44,244 INFO L87 Difference]: Start difference. First operand 135 states and 177 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:44,256 INFO L93 Difference]: Finished difference Result 130 states and 170 transitions. [2021-10-29 05:06:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:44,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-29 05:06:44,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:44,258 INFO L225 Difference]: With dead ends: 130 [2021-10-29 05:06:44,258 INFO L226 Difference]: Without dead ends: 130 [2021-10-29 05:06:44,259 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:44,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-29 05:06:44,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-29 05:06:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 127 states have (on average 1.3385826771653544) internal successors, (170), 129 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 170 transitions. [2021-10-29 05:06:44,266 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 170 transitions. Word has length 21 [2021-10-29 05:06:44,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:44,268 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 170 transitions. [2021-10-29 05:06:44,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,268 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 170 transitions. [2021-10-29 05:06:44,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 05:06:44,270 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:44,270 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:44,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-29 05:06:44,271 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:44,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:44,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1043976817, now seen corresponding path program 1 times [2021-10-29 05:06:44,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:44,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092835260] [2021-10-29 05:06:44,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:44,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:44,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:44,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:44,381 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:44,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092835260] [2021-10-29 05:06:44,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092835260] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:44,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:44,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:06:44,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047023365] [2021-10-29 05:06:44,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:06:44,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:44,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:06:44,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:06:44,384 INFO L87 Difference]: Start difference. First operand 130 states and 170 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:44,603 INFO L93 Difference]: Finished difference Result 152 states and 193 transitions. [2021-10-29 05:06:44,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:06:44,604 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-29 05:06:44,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:44,605 INFO L225 Difference]: With dead ends: 152 [2021-10-29 05:06:44,606 INFO L226 Difference]: Without dead ends: 152 [2021-10-29 05:06:44,606 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:06:44,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-29 05:06:44,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 130. [2021-10-29 05:06:44,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 127 states have (on average 1.3385826771653544) internal successors, (170), 129 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 170 transitions. [2021-10-29 05:06:44,610 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 170 transitions. Word has length 21 [2021-10-29 05:06:44,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:44,611 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 170 transitions. [2021-10-29 05:06:44,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,611 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 170 transitions. [2021-10-29 05:06:44,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:06:44,612 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:44,612 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:44,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-29 05:06:44,613 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:44,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:44,613 INFO L85 PathProgramCache]: Analyzing trace with hash -899913052, now seen corresponding path program 1 times [2021-10-29 05:06:44,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:44,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594542510] [2021-10-29 05:06:44,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:44,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:44,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:44,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:44,648 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:44,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594542510] [2021-10-29 05:06:44,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594542510] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:44,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:44,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:06:44,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910123175] [2021-10-29 05:06:44,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:06:44,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:44,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:06:44,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:06:44,650 INFO L87 Difference]: Start difference. First operand 130 states and 170 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:44,710 INFO L93 Difference]: Finished difference Result 140 states and 181 transitions. [2021-10-29 05:06:44,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:06:44,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-29 05:06:44,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:44,712 INFO L225 Difference]: With dead ends: 140 [2021-10-29 05:06:44,712 INFO L226 Difference]: Without dead ends: 122 [2021-10-29 05:06:44,712 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:06:44,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-29 05:06:44,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-10-29 05:06:44,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 119 states have (on average 1.3361344537815125) internal successors, (159), 121 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 159 transitions. [2021-10-29 05:06:44,717 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 159 transitions. Word has length 22 [2021-10-29 05:06:44,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:44,717 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 159 transitions. [2021-10-29 05:06:44,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,718 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 159 transitions. [2021-10-29 05:06:44,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:06:44,718 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:44,719 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:44,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-29 05:06:44,719 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:44,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:44,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1927773491, now seen corresponding path program 1 times [2021-10-29 05:06:44,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:44,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764759992] [2021-10-29 05:06:44,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:44,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:44,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:44,779 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:44,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764759992] [2021-10-29 05:06:44,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764759992] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:44,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:44,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:44,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627363068] [2021-10-29 05:06:44,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:44,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:44,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:44,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:44,781 INFO L87 Difference]: Start difference. First operand 122 states and 159 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:44,846 INFO L93 Difference]: Finished difference Result 124 states and 162 transitions. [2021-10-29 05:06:44,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:44,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-29 05:06:44,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:44,848 INFO L225 Difference]: With dead ends: 124 [2021-10-29 05:06:44,849 INFO L226 Difference]: Without dead ends: 124 [2021-10-29 05:06:44,849 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:44,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-10-29 05:06:44,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-10-29 05:06:44,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 121 states have (on average 1.3388429752066116) internal successors, (162), 123 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 162 transitions. [2021-10-29 05:06:44,854 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 162 transitions. Word has length 22 [2021-10-29 05:06:44,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:44,855 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 162 transitions. [2021-10-29 05:06:44,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 162 transitions. [2021-10-29 05:06:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 05:06:44,856 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:44,856 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:44,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-29 05:06:44,857 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:44,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:44,857 INFO L85 PathProgramCache]: Analyzing trace with hash -980806915, now seen corresponding path program 1 times [2021-10-29 05:06:44,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:44,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223751870] [2021-10-29 05:06:44,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:44,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:44,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:44,910 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:44,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223751870] [2021-10-29 05:06:44,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223751870] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:44,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:44,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:44,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46911834] [2021-10-29 05:06:44,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:06:44,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:44,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:06:44,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:06:44,913 INFO L87 Difference]: Start difference. First operand 124 states and 162 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) [2021-10-29 05:06:45,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:45,009 INFO L93 Difference]: Finished difference Result 144 states and 182 transitions. [2021-10-29 05:06:45,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:06:45,010 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 [2021-10-29 05:06:45,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:45,014 INFO L225 Difference]: With dead ends: 144 [2021-10-29 05:06:45,014 INFO L226 Difference]: Without dead ends: 144 [2021-10-29 05:06:45,016 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:06:45,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-10-29 05:06:45,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 137. [2021-10-29 05:06:45,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 134 states have (on average 1.3059701492537314) internal successors, (175), 136 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 175 transitions. [2021-10-29 05:06:45,022 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 175 transitions. Word has length 22 [2021-10-29 05:06:45,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:45,022 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 175 transitions. [2021-10-29 05:06:45,023 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) [2021-10-29 05:06:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 175 transitions. [2021-10-29 05:06:45,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 05:06:45,026 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:45,026 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:45,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-29 05:06:45,026 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:45,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:45,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1760158127, now seen corresponding path program 1 times [2021-10-29 05:06:45,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:45,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262309120] [2021-10-29 05:06:45,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:45,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:45,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:45,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:45,076 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:45,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262309120] [2021-10-29 05:06:45,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262309120] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:45,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:45,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:45,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940096733] [2021-10-29 05:06:45,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:45,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:45,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:45,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:45,079 INFO L87 Difference]: Start difference. First operand 137 states and 175 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:45,150 INFO L93 Difference]: Finished difference Result 148 states and 187 transitions. [2021-10-29 05:06:45,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:45,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-29 05:06:45,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:45,152 INFO L225 Difference]: With dead ends: 148 [2021-10-29 05:06:45,152 INFO L226 Difference]: Without dead ends: 131 [2021-10-29 05:06:45,154 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:45,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-29 05:06:45,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-10-29 05:06:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 128 states have (on average 1.265625) internal successors, (162), 130 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 162 transitions. [2021-10-29 05:06:45,160 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 162 transitions. Word has length 23 [2021-10-29 05:06:45,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:45,160 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 162 transitions. [2021-10-29 05:06:45,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,161 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 162 transitions. [2021-10-29 05:06:45,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 05:06:45,163 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:45,163 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:45,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-29 05:06:45,165 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:45,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:45,166 INFO L85 PathProgramCache]: Analyzing trace with hash -376222640, now seen corresponding path program 1 times [2021-10-29 05:06:45,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:45,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556214032] [2021-10-29 05:06:45,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:45,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:45,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:45,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:45,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556214032] [2021-10-29 05:06:45,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556214032] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:45,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:45,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:45,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211582031] [2021-10-29 05:06:45,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:45,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:45,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:45,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:45,233 INFO L87 Difference]: Start difference. First operand 131 states and 162 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:45,241 INFO L93 Difference]: Finished difference Result 127 states and 157 transitions. [2021-10-29 05:06:45,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:45,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-29 05:06:45,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:45,243 INFO L225 Difference]: With dead ends: 127 [2021-10-29 05:06:45,244 INFO L226 Difference]: Without dead ends: 126 [2021-10-29 05:06:45,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:45,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-10-29 05:06:45,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2021-10-29 05:06:45,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 124 states have (on average 1.2580645161290323) internal successors, (156), 125 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 156 transitions. [2021-10-29 05:06:45,249 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 156 transitions. Word has length 23 [2021-10-29 05:06:45,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:45,249 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 156 transitions. [2021-10-29 05:06:45,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,250 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 156 transitions. [2021-10-29 05:06:45,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 05:06:45,251 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:45,251 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:45,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-29 05:06:45,252 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:45,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:45,252 INFO L85 PathProgramCache]: Analyzing trace with hash -730298560, now seen corresponding path program 1 times [2021-10-29 05:06:45,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:45,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318087893] [2021-10-29 05:06:45,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:45,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:45,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:45,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:45,304 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:45,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318087893] [2021-10-29 05:06:45,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318087893] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:45,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:45,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:45,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196613997] [2021-10-29 05:06:45,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:06:45,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:45,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:06:45,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:06:45,310 INFO L87 Difference]: Start difference. First operand 126 states and 156 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:45,409 INFO L93 Difference]: Finished difference Result 113 states and 137 transitions. [2021-10-29 05:06:45,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:06:45,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-29 05:06:45,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:45,412 INFO L225 Difference]: With dead ends: 113 [2021-10-29 05:06:45,412 INFO L226 Difference]: Without dead ends: 113 [2021-10-29 05:06:45,413 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:06:45,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-29 05:06:45,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-10-29 05:06:45,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.2342342342342343) internal successors, (137), 112 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 137 transitions. [2021-10-29 05:06:45,417 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 137 transitions. Word has length 23 [2021-10-29 05:06:45,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:45,417 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 137 transitions. [2021-10-29 05:06:45,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,417 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 137 transitions. [2021-10-29 05:06:45,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-29 05:06:45,418 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:45,418 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:45,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-29 05:06:45,419 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:45,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:45,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1653233595, now seen corresponding path program 1 times [2021-10-29 05:06:45,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:45,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906990258] [2021-10-29 05:06:45,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:45,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:45,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:45,467 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:45,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906990258] [2021-10-29 05:06:45,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906990258] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:45,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:45,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:06:45,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916268427] [2021-10-29 05:06:45,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:06:45,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:45,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:06:45,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:06:45,472 INFO L87 Difference]: Start difference. First operand 113 states and 137 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:45,546 INFO L93 Difference]: Finished difference Result 113 states and 131 transitions. [2021-10-29 05:06:45,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:06:45,547 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-29 05:06:45,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:45,548 INFO L225 Difference]: With dead ends: 113 [2021-10-29 05:06:45,548 INFO L226 Difference]: Without dead ends: 113 [2021-10-29 05:06:45,548 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:06:45,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-29 05:06:45,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-10-29 05:06:45,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.1801801801801801) internal successors, (131), 112 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2021-10-29 05:06:45,552 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 23 [2021-10-29 05:06:45,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:45,553 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2021-10-29 05:06:45,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,553 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2021-10-29 05:06:45,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:06:45,554 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:45,554 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:45,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-29 05:06:45,554 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:45,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:45,555 INFO L85 PathProgramCache]: Analyzing trace with hash -457243102, now seen corresponding path program 1 times [2021-10-29 05:06:45,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:45,555 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885696717] [2021-10-29 05:06:45,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:45,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:45,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:45,828 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:45,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885696717] [2021-10-29 05:06:45,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885696717] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:45,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:45,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:06:45,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810170889] [2021-10-29 05:06:45,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:06:45,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:45,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:06:45,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:06:45,832 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:45,989 INFO L93 Difference]: Finished difference Result 122 states and 140 transitions. [2021-10-29 05:06:45,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:06:45,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-29 05:06:45,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:45,990 INFO L225 Difference]: With dead ends: 122 [2021-10-29 05:06:45,991 INFO L226 Difference]: Without dead ends: 87 [2021-10-29 05:06:45,991 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:06:45,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-10-29 05:06:45,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-10-29 05:06:45,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 85 states have (on average 1.1647058823529413) internal successors, (99), 86 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2021-10-29 05:06:45,994 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 24 [2021-10-29 05:06:45,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:45,994 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2021-10-29 05:06:45,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:45,995 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2021-10-29 05:06:45,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-29 05:06:45,996 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:45,996 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:45,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-29 05:06:45,996 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:45,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:45,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1970402359, now seen corresponding path program 1 times [2021-10-29 05:06:45,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:45,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620012489] [2021-10-29 05:06:45,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:45,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:46,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:46,043 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:46,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620012489] [2021-10-29 05:06:46,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620012489] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:46,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:46,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:06:46,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572551848] [2021-10-29 05:06:46,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:06:46,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:46,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:06:46,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:06:46,046 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:46,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:46,094 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2021-10-29 05:06:46,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:06:46,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-29 05:06:46,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:46,096 INFO L225 Difference]: With dead ends: 85 [2021-10-29 05:06:46,096 INFO L226 Difference]: Without dead ends: 68 [2021-10-29 05:06:46,096 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:06:46,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-10-29 05:06:46,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-10-29 05:06:46,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 67 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:46,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2021-10-29 05:06:46,099 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 25 [2021-10-29 05:06:46,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:46,099 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2021-10-29 05:06:46,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:46,100 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2021-10-29 05:06:46,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 05:06:46,100 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:46,100 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:46,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-29 05:06:46,101 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:46,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1285726612, now seen corresponding path program 1 times [2021-10-29 05:06:46,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:46,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071574266] [2021-10-29 05:06:46,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:46,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:46,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:46,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:46,167 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:06:46,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071574266] [2021-10-29 05:06:46,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071574266] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:46,168 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:46,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-29 05:06:46,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64189371] [2021-10-29 05:06:46,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:06:46,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:06:46,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:06:46,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:06:46,169 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:46,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:46,251 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2021-10-29 05:06:46,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:06:46,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-29 05:06:46,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:46,252 INFO L225 Difference]: With dead ends: 78 [2021-10-29 05:06:46,252 INFO L226 Difference]: Without dead ends: 52 [2021-10-29 05:06:46,253 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:06:46,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-29 05:06:46,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-29 05:06:46,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.2156862745098038) internal successors, (62), 51 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:46,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 62 transitions. [2021-10-29 05:06:46,255 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 62 transitions. Word has length 26 [2021-10-29 05:06:46,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:46,255 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 62 transitions. [2021-10-29 05:06:46,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:46,255 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2021-10-29 05:06:46,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 05:06:46,256 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:46,256 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:46,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-29 05:06:46,256 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:46,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:46,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1535359744, now seen corresponding path program 1 times [2021-10-29 05:06:46,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:06:46,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232194628] [2021-10-29 05:06:46,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:46,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:06:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:06:46,273 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:06:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:06:46,322 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:06:46,322 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:06:46,323 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,325 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,326 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,327 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,328 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,329 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,330 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,331 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:06:46,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-29 05:06:46,335 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:46,338 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:06:46,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:06:46 BoogieIcfgContainer [2021-10-29 05:06:46,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:06:46,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:06:46,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:06:46,481 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:06:46,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:06:42" (3/4) ... [2021-10-29 05:06:46,485 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:06:46,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:06:46,488 INFO L168 Benchmark]: Toolchain (without parser) took 7606.99 ms. Allocated memory was 111.1 MB in the beginning and 172.0 MB in the end (delta: 60.8 MB). Free memory was 75.5 MB in the beginning and 95.7 MB in the end (delta: -20.2 MB). Peak memory consumption was 41.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:06:46,488 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 77.6 MB. Free memory was 35.6 MB in the beginning and 35.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:06:46,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.14 ms. Allocated memory is still 111.1 MB. Free memory was 75.3 MB in the beginning and 78.6 MB in the end (delta: -3.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 05:06:46,490 INFO L168 Benchmark]: Boogie Procedure Inliner took 153.06 ms. Allocated memory is still 111.1 MB. Free memory was 78.6 MB in the beginning and 72.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:06:46,490 INFO L168 Benchmark]: Boogie Preprocessor took 110.41 ms. Allocated memory is still 111.1 MB. Free memory was 72.4 MB in the beginning and 68.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:06:46,491 INFO L168 Benchmark]: RCFGBuilder took 2328.66 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 68.2 MB in the beginning and 79.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:06:46,492 INFO L168 Benchmark]: TraceAbstraction took 4430.05 ms. Allocated memory was 142.6 MB in the beginning and 172.0 MB in the end (delta: 29.4 MB). Free memory was 78.5 MB in the beginning and 95.7 MB in the end (delta: -17.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:06:46,492 INFO L168 Benchmark]: Witness Printer took 5.06 ms. Allocated memory is still 172.0 MB. Free memory is still 95.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:06:46,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 77.6 MB. Free memory was 35.6 MB in the beginning and 35.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 570.14 ms. Allocated memory is still 111.1 MB. Free memory was 75.3 MB in the beginning and 78.6 MB in the end (delta: -3.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 153.06 ms. Allocated memory is still 111.1 MB. Free memory was 78.6 MB in the beginning and 72.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 110.41 ms. Allocated memory is still 111.1 MB. Free memory was 72.4 MB in the beginning and 68.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2328.66 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 68.2 MB in the beginning and 79.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4430.05 ms. Allocated memory was 142.6 MB in the beginning and 172.0 MB in the end (delta: 29.4 MB). Free memory was 78.5 MB in the beginning and 95.7 MB in the end (delta: -17.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.06 ms. Allocated memory is still 172.0 MB. Free memory is still 95.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1013. Possible FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 [L337] COND TRUE irp_choice == 0 [L338] pirp__IoStatus__Status = -1073741637 [L339] myStatus = -1073741637 [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 [L236] devExt__Removed = 1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 [L518] returnVal2 = -1073741823 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L551] return (returnVal2); [L248] status = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L290] return (status); [L388] status = KbFilter_PnP(devobj, pirp) [L412] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L420] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L428] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L429] COND TRUE status != -1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L430] COND FALSE !(s != SKIP2) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L440] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L447] COND FALSE !(s == DC) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L452] COND TRUE status != lowerDriverReturn VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] reach_error() VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 293]: 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, 203 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3362 SDtfs, 2014 SDslu, 2097 SDs, 0 SdLazy, 1109 SolverSat, 124 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=203occurred in iteration=0, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 21 MinimizatonAttempts, 103 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 376 ConstructedInterpolants, 0 QuantifiedInterpolants, 1173 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:06:46,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:06:49,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:06:49,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:06:49,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:06:49,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:06:49,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:06:49,552 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:06:49,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:06:49,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:06:49,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:06:49,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:06:49,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:06:49,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:06:49,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:06:49,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:06:49,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:06:49,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:06:49,574 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:06:49,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:06:49,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:06:49,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:06:49,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:06:49,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:06:49,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:06:49,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:06:49,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:06:49,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:06:49,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:06:49,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:06:49,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:06:49,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:06:49,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:06:49,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:06:49,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:06:49,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:06:49,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:06:49,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:06:49,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:06:49,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:06:49,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:06:49,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:06:49,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-10-29 05:06:49,685 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:06:49,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:06:49,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:06:49,688 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:06:49,688 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:06:49,688 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:06:49,689 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:06:49,689 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:06:49,689 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:06:49,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 05:06:49,692 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 05:06:49,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:06:49,693 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:06:49,694 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 05:06:49,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:06:49,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:06:49,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:06:49,695 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 05:06:49,695 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 05:06:49,695 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 05:06:49,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:06:49,696 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:06:49,696 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:06:49,696 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:06:49,697 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:06:49,697 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:06:49,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:06:49,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:06:49,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:06:49,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:06:49,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:06:49,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:06:49,699 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:06:49,700 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:06:49,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:06:49,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:06:49,701 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_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a05fbc1d8a2048d37fda072c6a9d42f1f996d033c914869a4e2960aadff82dde [2021-10-29 05:06:50,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:06:50,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:06:50,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:06:50,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:06:50,278 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:06:50,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-10-29 05:06:50,368 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/data/01928d31a/a13dc58cc49b49208b3467778322a791/FLAGfe4e36a35 [2021-10-29 05:06:51,157 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:06:51,158 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c [2021-10-29 05:06:51,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/data/01928d31a/a13dc58cc49b49208b3467778322a791/FLAGfe4e36a35 [2021-10-29 05:06:51,427 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/data/01928d31a/a13dc58cc49b49208b3467778322a791 [2021-10-29 05:06:51,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:06:51,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:06:51,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:06:51,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:06:51,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:06:51,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:06:51" (1/1) ... [2021-10-29 05:06:51,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669ba16a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:51, skipping insertion in model container [2021-10-29 05:06:51,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:06:51" (1/1) ... [2021-10-29 05:06:51,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:06:51,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:06:51,889 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_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-10-29 05:06:51,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:06:51,956 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:06:52,057 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_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/sv-benchmarks/c/ntdrivers-simplified/kbfiltr_simpl2.cil-2.c[29656,29669] [2021-10-29 05:06:52,057 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:06:52,077 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:06:52,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52 WrapperNode [2021-10-29 05:06:52,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:06:52,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:06:52,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:06:52,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:06:52,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52" (1/1) ... [2021-10-29 05:06:52,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52" (1/1) ... [2021-10-29 05:06:52,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:06:52,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:06:52,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:06:52,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:06:52,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52" (1/1) ... [2021-10-29 05:06:52,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52" (1/1) ... [2021-10-29 05:06:52,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52" (1/1) ... [2021-10-29 05:06:52,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52" (1/1) ... [2021-10-29 05:06:52,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52" (1/1) ... [2021-10-29 05:06:52,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52" (1/1) ... [2021-10-29 05:06:52,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52" (1/1) ... [2021-10-29 05:06:52,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:06:52,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:06:52,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:06:52,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:06:52,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52" (1/1) ... [2021-10-29 05:06:52,426 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:06:52,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:06:52,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:06:52,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:06:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:06:52,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:06:52,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:06:52,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:06:52,785 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:52,805 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:52,831 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:52,862 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:52,867 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:52,871 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:52,879 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:52,884 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:52,889 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:52,904 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:52,911 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:52,924 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-29 05:06:54,139 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false; [2021-10-29 05:06:54,139 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false; [2021-10-29 05:06:54,139 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume false; [2021-10-29 05:06:54,139 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !false; [2021-10-29 05:06:54,140 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##219: assume false; [2021-10-29 05:06:54,140 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##220: assume !false; [2021-10-29 05:06:54,140 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##302: assume !false; [2021-10-29 05:06:54,140 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##301: assume false; [2021-10-29 05:06:54,150 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##322: assume !false; [2021-10-29 05:06:54,150 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##321: assume false; [2021-10-29 05:06:54,150 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-10-29 05:06:54,150 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-10-29 05:06:54,150 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##191: assume false; [2021-10-29 05:06:54,151 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume !false; [2021-10-29 05:06:54,151 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume !false; [2021-10-29 05:06:54,151 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume false; [2021-10-29 05:06:54,151 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume false; [2021-10-29 05:06:54,152 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume !false; [2021-10-29 05:06:54,152 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##389: assume !false; [2021-10-29 05:06:54,152 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##388: assume false; [2021-10-29 05:06:54,152 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-10-29 05:06:54,153 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-10-29 05:06:54,153 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume !false; [2021-10-29 05:06:54,153 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume false; [2021-10-29 05:06:54,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:06:54,168 INFO L299 CfgBuilder]: Removed 154 assume(true) statements. [2021-10-29 05:06:54,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:06:54 BoogieIcfgContainer [2021-10-29 05:06:54,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:06:54,173 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:06:54,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:06:54,177 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:06:54,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:06:51" (1/3) ... [2021-10-29 05:06:54,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50455112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:06:54, skipping insertion in model container [2021-10-29 05:06:54,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:06:52" (2/3) ... [2021-10-29 05:06:54,179 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50455112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:06:54, skipping insertion in model container [2021-10-29 05:06:54,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:06:54" (3/3) ... [2021-10-29 05:06:54,181 INFO L111 eAbstractionObserver]: Analyzing ICFG kbfiltr_simpl2.cil-2.c [2021-10-29 05:06:54,188 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:06:54,188 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-10-29 05:06:54,257 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:06:54,264 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 05:06:54,265 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-10-29 05:06:54,304 INFO L276 IsEmpty]: Start isEmpty. Operand has 331 states, 299 states have (on average 1.648829431438127) internal successors, (493), 330 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:54,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:06:54,312 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:54,313 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:54,314 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:54,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:54,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1805892157, now seen corresponding path program 1 times [2021-10-29 05:06:54,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:06:54,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1941073681] [2021-10-29 05:06:54,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:54,338 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:06:54,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:06:54,346 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:06:54,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:06:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:54,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:06:54,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:06:54,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:54,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:06:54,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:54,694 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:06:54,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1941073681] [2021-10-29 05:06:54,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1941073681] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:54,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:54,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:06:54,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243240126] [2021-10-29 05:06:54,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:06:54,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:06:54,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:06:54,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:06:54,736 INFO L87 Difference]: Start difference. First operand has 331 states, 299 states have (on average 1.648829431438127) internal successors, (493), 330 states have internal predecessors, (493), 0 states have call successors, (0), 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) [2021-10-29 05:06:54,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:54,850 INFO L93 Difference]: Finished difference Result 340 states and 465 transitions. [2021-10-29 05:06:54,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:06:54,853 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 [2021-10-29 05:06:54,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:54,870 INFO L225 Difference]: With dead ends: 340 [2021-10-29 05:06:54,870 INFO L226 Difference]: Without dead ends: 334 [2021-10-29 05:06:54,872 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:06:54,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-10-29 05:06:54,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 329. [2021-10-29 05:06:54,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 298 states have (on average 1.5302013422818792) internal successors, (456), 328 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:54,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 456 transitions. [2021-10-29 05:06:54,977 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 456 transitions. Word has length 7 [2021-10-29 05:06:54,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:54,979 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 456 transitions. [2021-10-29 05:06:54,979 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) [2021-10-29 05:06:54,979 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 456 transitions. [2021-10-29 05:06:54,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 05:06:54,981 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:54,981 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:55,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:06:55,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:06:55,201 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:55,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:55,201 INFO L85 PathProgramCache]: Analyzing trace with hash 557701687, now seen corresponding path program 1 times [2021-10-29 05:06:55,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:06:55,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913412279] [2021-10-29 05:06:55,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:55,203 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:06:55,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:06:55,211 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:06:55,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:06:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:55,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:06:55,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:06:55,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:55,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:06:55,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:55,513 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:06:55,513 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913412279] [2021-10-29 05:06:55,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913412279] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:55,517 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:55,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:06:55,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698239040] [2021-10-29 05:06:55,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:55,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:06:55,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:55,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:55,523 INFO L87 Difference]: Start difference. First operand 329 states and 456 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) [2021-10-29 05:06:55,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:55,882 INFO L93 Difference]: Finished difference Result 378 states and 524 transitions. [2021-10-29 05:06:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:55,883 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 [2021-10-29 05:06:55,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:55,887 INFO L225 Difference]: With dead ends: 378 [2021-10-29 05:06:55,887 INFO L226 Difference]: Without dead ends: 378 [2021-10-29 05:06:55,888 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:55,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2021-10-29 05:06:55,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 357. [2021-10-29 05:06:55,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 336 states have (on average 1.4732142857142858) internal successors, (495), 356 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:55,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 495 transitions. [2021-10-29 05:06:55,969 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 495 transitions. Word has length 13 [2021-10-29 05:06:55,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:55,970 INFO L470 AbstractCegarLoop]: Abstraction has 357 states and 495 transitions. [2021-10-29 05:06:55,972 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) [2021-10-29 05:06:55,972 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 495 transitions. [2021-10-29 05:06:55,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 05:06:55,974 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:55,975 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:55,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:06:56,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:06:56,196 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:56,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:56,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1801870968, now seen corresponding path program 1 times [2021-10-29 05:06:56,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:06:56,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236949507] [2021-10-29 05:06:56,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:56,198 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:06:56,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:06:56,205 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:06:56,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:06:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:56,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:06:56,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:06:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:56,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:06:56,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:56,443 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:06:56,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236949507] [2021-10-29 05:06:56,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236949507] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:56,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:56,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:06:56,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199901281] [2021-10-29 05:06:56,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:56,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:06:56,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:56,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:56,451 INFO L87 Difference]: Start difference. First operand 357 states and 495 transitions. Second operand has 3 states, 2 states have (on average 6.5) 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) [2021-10-29 05:06:56,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:56,467 INFO L93 Difference]: Finished difference Result 356 states and 494 transitions. [2021-10-29 05:06:56,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:56,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) 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 [2021-10-29 05:06:56,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:56,472 INFO L225 Difference]: With dead ends: 356 [2021-10-29 05:06:56,472 INFO L226 Difference]: Without dead ends: 351 [2021-10-29 05:06:56,473 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:56,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-10-29 05:06:56,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-10-29 05:06:56,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 331 states have (on average 1.447129909365559) internal successors, (479), 350 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:56,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 479 transitions. [2021-10-29 05:06:56,519 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 479 transitions. Word has length 13 [2021-10-29 05:06:56,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:56,520 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 479 transitions. [2021-10-29 05:06:56,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) 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) [2021-10-29 05:06:56,521 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 479 transitions. [2021-10-29 05:06:56,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 05:06:56,522 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:56,522 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:56,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:06:56,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:06:56,741 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:56,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:56,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1900748477, now seen corresponding path program 1 times [2021-10-29 05:06:56,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:06:56,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103467614] [2021-10-29 05:06:56,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:56,742 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:06:56,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:06:56,744 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:06:56,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:06:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:56,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:06:56,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:06:56,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:56,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:06:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:57,023 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:06:57,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103467614] [2021-10-29 05:06:57,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103467614] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:57,023 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:57,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:06:57,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307423459] [2021-10-29 05:06:57,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:57,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:06:57,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:57,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:57,025 INFO L87 Difference]: Start difference. First operand 351 states and 479 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:57,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:57,071 INFO L93 Difference]: Finished difference Result 362 states and 491 transitions. [2021-10-29 05:06:57,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:57,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-29 05:06:57,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:57,075 INFO L225 Difference]: With dead ends: 362 [2021-10-29 05:06:57,075 INFO L226 Difference]: Without dead ends: 362 [2021-10-29 05:06:57,076 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:57,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-10-29 05:06:57,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 307. [2021-10-29 05:06:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 295 states have (on average 1.4271186440677965) internal successors, (421), 306 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:57,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 421 transitions. [2021-10-29 05:06:57,100 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 421 transitions. Word has length 15 [2021-10-29 05:06:57,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:57,101 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 421 transitions. [2021-10-29 05:06:57,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:57,114 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 421 transitions. [2021-10-29 05:06:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 05:06:57,118 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:57,118 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:57,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:06:57,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:06:57,334 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:57,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:57,335 INFO L85 PathProgramCache]: Analyzing trace with hash 306593718, now seen corresponding path program 1 times [2021-10-29 05:06:57,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:06:57,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495992475] [2021-10-29 05:06:57,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:57,336 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:06:57,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:06:57,338 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:06:57,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:06:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:57,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:06:57,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:06:57,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:57,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:06:57,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:57,656 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:06:57,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495992475] [2021-10-29 05:06:57,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495992475] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:57,658 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:57,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:06:57,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506326603] [2021-10-29 05:06:57,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:57,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:06:57,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:57,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:57,661 INFO L87 Difference]: Start difference. First operand 307 states and 421 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:57,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:57,859 INFO L93 Difference]: Finished difference Result 293 states and 407 transitions. [2021-10-29 05:06:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:57,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-29 05:06:57,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:57,862 INFO L225 Difference]: With dead ends: 293 [2021-10-29 05:06:57,863 INFO L226 Difference]: Without dead ends: 293 [2021-10-29 05:06:57,863 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:57,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-10-29 05:06:57,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2021-10-29 05:06:57,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 288 states have (on average 1.4131944444444444) internal successors, (407), 292 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:57,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 407 transitions. [2021-10-29 05:06:57,877 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 407 transitions. Word has length 21 [2021-10-29 05:06:57,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:57,878 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 407 transitions. [2021-10-29 05:06:57,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:57,879 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 407 transitions. [2021-10-29 05:06:57,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 05:06:57,890 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:57,890 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:57,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:06:58,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:06:58,104 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:58,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:58,105 INFO L85 PathProgramCache]: Analyzing trace with hash 847063989, now seen corresponding path program 1 times [2021-10-29 05:06:58,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:06:58,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564900689] [2021-10-29 05:06:58,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:58,106 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:06:58,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:06:58,108 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:06:58,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 05:06:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:58,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:06:58,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:06:58,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:58,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:06:58,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:58,693 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:06:58,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564900689] [2021-10-29 05:06:58,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564900689] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:58,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:58,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:06:58,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595108514] [2021-10-29 05:06:58,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:06:58,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:06:58,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:06:58,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:06:58,698 INFO L87 Difference]: Start difference. First operand 293 states and 407 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) [2021-10-29 05:06:58,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:58,977 INFO L93 Difference]: Finished difference Result 318 states and 433 transitions. [2021-10-29 05:06:58,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:06:58,978 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 26 [2021-10-29 05:06:58,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:58,980 INFO L225 Difference]: With dead ends: 318 [2021-10-29 05:06:58,980 INFO L226 Difference]: Without dead ends: 317 [2021-10-29 05:06:58,981 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:06:58,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-10-29 05:06:58,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 305. [2021-10-29 05:06:58,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 300 states have (on average 1.4066666666666667) internal successors, (422), 304 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:58,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 422 transitions. [2021-10-29 05:06:58,991 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 422 transitions. Word has length 26 [2021-10-29 05:06:58,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:58,992 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 422 transitions. [2021-10-29 05:06:58,992 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) [2021-10-29 05:06:58,992 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 422 transitions. [2021-10-29 05:06:58,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 05:06:58,994 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:58,994 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:59,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:06:59,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:06:59,206 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:59,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:59,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1660315800, now seen corresponding path program 1 times [2021-10-29 05:06:59,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:06:59,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278368815] [2021-10-29 05:06:59,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:59,208 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:06:59,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:06:59,209 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:06:59,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 05:06:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:06:59,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:06:59,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:06:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:59,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:06:59,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:06:59,522 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:06:59,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278368815] [2021-10-29 05:06:59,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278368815] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:06:59,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:06:59,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:06:59,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009235316] [2021-10-29 05:06:59,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:06:59,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:06:59,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:06:59,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:59,525 INFO L87 Difference]: Start difference. First operand 305 states and 422 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:59,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:06:59,663 INFO L93 Difference]: Finished difference Result 302 states and 418 transitions. [2021-10-29 05:06:59,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:06:59,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-29 05:06:59,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:06:59,666 INFO L225 Difference]: With dead ends: 302 [2021-10-29 05:06:59,666 INFO L226 Difference]: Without dead ends: 302 [2021-10-29 05:06:59,666 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:06:59,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-10-29 05:06:59,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2021-10-29 05:06:59,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 298 states have (on average 1.4026845637583893) internal successors, (418), 301 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:59,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 418 transitions. [2021-10-29 05:06:59,673 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 418 transitions. Word has length 27 [2021-10-29 05:06:59,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:06:59,674 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 418 transitions. [2021-10-29 05:06:59,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:06:59,674 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 418 transitions. [2021-10-29 05:06:59,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 05:06:59,675 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:06:59,675 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:06:59,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 05:06:59,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:06:59,889 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:06:59,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:06:59,889 INFO L85 PathProgramCache]: Analyzing trace with hash -23036524, now seen corresponding path program 1 times [2021-10-29 05:06:59,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:06:59,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680393766] [2021-10-29 05:06:59,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:06:59,890 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:06:59,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:06:59,891 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:06:59,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 05:07:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:00,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:07:00,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:00,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:00,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:00,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:00,205 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:00,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680393766] [2021-10-29 05:07:00,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680393766] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:00,206 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:00,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:07:00,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35465090] [2021-10-29 05:07:00,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:07:00,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:00,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:07:00,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:07:00,208 INFO L87 Difference]: Start difference. First operand 302 states and 418 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) [2021-10-29 05:07:00,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:00,239 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2021-10-29 05:07:00,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:07:00,240 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 27 [2021-10-29 05:07:00,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:00,242 INFO L225 Difference]: With dead ends: 315 [2021-10-29 05:07:00,242 INFO L226 Difference]: Without dead ends: 315 [2021-10-29 05:07:00,243 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:07:00,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2021-10-29 05:07:00,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 302. [2021-10-29 05:07:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 298 states have (on average 1.3993288590604027) internal successors, (417), 301 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 417 transitions. [2021-10-29 05:07:00,252 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 417 transitions. Word has length 27 [2021-10-29 05:07:00,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:00,252 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 417 transitions. [2021-10-29 05:07:00,253 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) [2021-10-29 05:07:00,253 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 417 transitions. [2021-10-29 05:07:00,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 05:07:00,254 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:00,254 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:00,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:00,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:00,467 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:00,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:00,467 INFO L85 PathProgramCache]: Analyzing trace with hash 476963846, now seen corresponding path program 1 times [2021-10-29 05:07:00,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:00,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487406634] [2021-10-29 05:07:00,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:00,468 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:00,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:00,471 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:00,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 05:07:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:00,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:07:00,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:00,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:00,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:00,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:00,992 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:00,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487406634] [2021-10-29 05:07:00,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487406634] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:00,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:00,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:07:00,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885029222] [2021-10-29 05:07:00,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:07:00,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:00,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:07:00,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:07:00,995 INFO L87 Difference]: Start difference. First operand 302 states and 417 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:01,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:01,240 INFO L93 Difference]: Finished difference Result 306 states and 419 transitions. [2021-10-29 05:07:01,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:07:01,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 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 27 [2021-10-29 05:07:01,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:01,243 INFO L225 Difference]: With dead ends: 306 [2021-10-29 05:07:01,243 INFO L226 Difference]: Without dead ends: 306 [2021-10-29 05:07:01,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:07:01,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-10-29 05:07:01,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 302. [2021-10-29 05:07:01,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 298 states have (on average 1.395973154362416) internal successors, (416), 301 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:01,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 416 transitions. [2021-10-29 05:07:01,254 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 416 transitions. Word has length 27 [2021-10-29 05:07:01,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:01,255 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 416 transitions. [2021-10-29 05:07:01,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:01,255 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 416 transitions. [2021-10-29 05:07:01,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 05:07:01,257 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:01,257 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:01,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:01,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:01,475 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:01,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:01,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1894183263, now seen corresponding path program 1 times [2021-10-29 05:07:01,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:01,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586923638] [2021-10-29 05:07:01,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:01,477 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:01,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:01,478 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:01,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 05:07:01,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:01,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:07:01,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:01,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:01,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:01,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:01,898 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:01,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586923638] [2021-10-29 05:07:01,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586923638] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:01,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:01,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:07:01,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119879732] [2021-10-29 05:07:01,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:07:01,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:01,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:07:01,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:07:01,901 INFO L87 Difference]: Start difference. First operand 302 states and 416 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:01,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:01,931 INFO L93 Difference]: Finished difference Result 295 states and 404 transitions. [2021-10-29 05:07:01,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:07:01,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 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 28 [2021-10-29 05:07:01,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:01,934 INFO L225 Difference]: With dead ends: 295 [2021-10-29 05:07:01,934 INFO L226 Difference]: Without dead ends: 273 [2021-10-29 05:07:01,935 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:07:01,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-10-29 05:07:01,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 249. [2021-10-29 05:07:01,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 246 states have (on average 1.410569105691057) internal successors, (347), 248 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:01,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 347 transitions. [2021-10-29 05:07:01,944 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 347 transitions. Word has length 28 [2021-10-29 05:07:01,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:01,944 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 347 transitions. [2021-10-29 05:07:01,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:01,945 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 347 transitions. [2021-10-29 05:07:01,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-29 05:07:01,946 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:01,947 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:01,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:02,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:02,165 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:02,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:02,166 INFO L85 PathProgramCache]: Analyzing trace with hash 403678015, now seen corresponding path program 1 times [2021-10-29 05:07:02,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:02,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473038165] [2021-10-29 05:07:02,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:02,167 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:02,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:02,168 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:02,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 05:07:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:02,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:07:02,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:02,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:02,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:02,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:02,596 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:02,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473038165] [2021-10-29 05:07:02,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473038165] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:02,597 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:02,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:07:02,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320678039] [2021-10-29 05:07:02,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:07:02,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:02,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:07:02,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:07:02,605 INFO L87 Difference]: Start difference. First operand 249 states and 347 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) [2021-10-29 05:07:02,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:02,651 INFO L93 Difference]: Finished difference Result 242 states and 337 transitions. [2021-10-29 05:07:02,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:07:02,652 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 [2021-10-29 05:07:02,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:02,654 INFO L225 Difference]: With dead ends: 242 [2021-10-29 05:07:02,654 INFO L226 Difference]: Without dead ends: 242 [2021-10-29 05:07:02,654 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:07:02,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-29 05:07:02,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-29 05:07:02,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 239 states have (on average 1.4100418410041842) internal successors, (337), 241 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 337 transitions. [2021-10-29 05:07:02,662 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 337 transitions. Word has length 30 [2021-10-29 05:07:02,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:02,663 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 337 transitions. [2021-10-29 05:07:02,663 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) [2021-10-29 05:07:02,664 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 337 transitions. [2021-10-29 05:07:02,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 05:07:02,665 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:02,665 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:02,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:02,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:02,880 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:02,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:02,880 INFO L85 PathProgramCache]: Analyzing trace with hash -959450186, now seen corresponding path program 1 times [2021-10-29 05:07:02,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:02,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1610697992] [2021-10-29 05:07:02,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:02,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:02,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:02,882 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:02,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-29 05:07:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:03,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:07:03,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:03,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:03,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:03,497 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:03,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1610697992] [2021-10-29 05:07:03,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1610697992] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:03,498 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:03,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:07:03,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430877724] [2021-10-29 05:07:03,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:07:03,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:03,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:07:03,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:07:03,500 INFO L87 Difference]: Start difference. First operand 242 states and 337 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) [2021-10-29 05:07:03,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:03,689 INFO L93 Difference]: Finished difference Result 242 states and 330 transitions. [2021-10-29 05:07:03,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:07:03,690 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 31 [2021-10-29 05:07:03,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:03,692 INFO L225 Difference]: With dead ends: 242 [2021-10-29 05:07:03,692 INFO L226 Difference]: Without dead ends: 242 [2021-10-29 05:07:03,692 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:07:03,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-29 05:07:03,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-29 05:07:03,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 239 states have (on average 1.3807531380753137) internal successors, (330), 241 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) [2021-10-29 05:07:03,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 330 transitions. [2021-10-29 05:07:03,700 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 330 transitions. Word has length 31 [2021-10-29 05:07:03,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:03,700 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 330 transitions. [2021-10-29 05:07:03,701 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) [2021-10-29 05:07:03,701 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 330 transitions. [2021-10-29 05:07:03,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-29 05:07:03,702 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:03,702 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:03,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:03,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:03,918 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:03,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:03,918 INFO L85 PathProgramCache]: Analyzing trace with hash -841653818, now seen corresponding path program 1 times [2021-10-29 05:07:03,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:03,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064955438] [2021-10-29 05:07:03,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:03,919 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:03,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:03,920 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:03,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-29 05:07:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:04,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:07:04,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:04,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:04,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:04,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:04,615 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:04,616 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064955438] [2021-10-29 05:07:04,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064955438] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:04,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:04,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:07:04,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91645225] [2021-10-29 05:07:04,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:07:04,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:04,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:07:04,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:07:04,618 INFO L87 Difference]: Start difference. First operand 242 states and 330 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:04,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:04,851 INFO L93 Difference]: Finished difference Result 242 states and 329 transitions. [2021-10-29 05:07:04,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:07:04,851 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 31 [2021-10-29 05:07:04,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:04,853 INFO L225 Difference]: With dead ends: 242 [2021-10-29 05:07:04,853 INFO L226 Difference]: Without dead ends: 242 [2021-10-29 05:07:04,854 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:07:04,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-10-29 05:07:04,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-10-29 05:07:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 239 states have (on average 1.3765690376569037) internal successors, (329), 241 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:04,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 329 transitions. [2021-10-29 05:07:04,862 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 329 transitions. Word has length 31 [2021-10-29 05:07:04,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:04,863 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 329 transitions. [2021-10-29 05:07:04,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:04,863 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 329 transitions. [2021-10-29 05:07:04,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:07:04,864 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:04,864 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:04,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:05,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:05,065 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:05,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:05,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2012498225, now seen corresponding path program 1 times [2021-10-29 05:07:05,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:05,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710601916] [2021-10-29 05:07:05,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:05,066 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:05,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:05,068 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:05,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-29 05:07:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:05,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:07:05,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:05,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:05,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:05,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:05,798 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:05,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710601916] [2021-10-29 05:07:05,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710601916] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:05,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:05,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-10-29 05:07:05,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008011447] [2021-10-29 05:07:05,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-29 05:07:05,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:05,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-29 05:07:05,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:07:05,801 INFO L87 Difference]: Start difference. First operand 242 states and 329 transitions. Second operand has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:06,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:06,686 INFO L93 Difference]: Finished difference Result 360 states and 453 transitions. [2021-10-29 05:07:06,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-29 05:07:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-29 05:07:06,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:06,689 INFO L225 Difference]: With dead ends: 360 [2021-10-29 05:07:06,689 INFO L226 Difference]: Without dead ends: 280 [2021-10-29 05:07:06,690 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2021-10-29 05:07:06,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-10-29 05:07:06,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 211. [2021-10-29 05:07:06,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 208 states have (on average 1.375) internal successors, (286), 210 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 286 transitions. [2021-10-29 05:07:06,699 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 286 transitions. Word has length 33 [2021-10-29 05:07:06,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:06,699 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 286 transitions. [2021-10-29 05:07:06,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.769230769230769) internal successors, (49), 13 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:06,699 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 286 transitions. [2021-10-29 05:07:06,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:07:06,700 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:06,701 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:06,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:06,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:06,915 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:06,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:06,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1889062697, now seen corresponding path program 1 times [2021-10-29 05:07:06,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:06,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1489500286] [2021-10-29 05:07:06,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:06,916 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:06,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:06,918 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:06,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-29 05:07:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:07,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:07:07,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:07,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:07,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:07,528 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:07,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1489500286] [2021-10-29 05:07:07,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1489500286] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:07,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:07,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:07:07,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148173129] [2021-10-29 05:07:07,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:07:07,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:07,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:07:07,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:07:07,532 INFO L87 Difference]: Start difference. First operand 211 states and 286 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:07,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:07,789 INFO L93 Difference]: Finished difference Result 285 states and 362 transitions. [2021-10-29 05:07:07,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:07:07,789 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-29 05:07:07,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:07,791 INFO L225 Difference]: With dead ends: 285 [2021-10-29 05:07:07,792 INFO L226 Difference]: Without dead ends: 271 [2021-10-29 05:07:07,792 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:07:07,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-10-29 05:07:07,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 199. [2021-10-29 05:07:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 196 states have (on average 1.3775510204081634) internal successors, (270), 198 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:07,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 270 transitions. [2021-10-29 05:07:07,800 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 270 transitions. Word has length 33 [2021-10-29 05:07:07,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:07,801 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 270 transitions. [2021-10-29 05:07:07,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 270 transitions. [2021-10-29 05:07:07,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 05:07:07,802 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:07,803 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:07,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:08,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:08,018 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:08,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:08,018 INFO L85 PathProgramCache]: Analyzing trace with hash -822248422, now seen corresponding path program 1 times [2021-10-29 05:07:08,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:08,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134635664] [2021-10-29 05:07:08,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:08,019 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:08,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:08,021 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:08,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-29 05:07:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:08,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:07:08,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:08,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:08,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:08,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:08,607 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:08,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134635664] [2021-10-29 05:07:08,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134635664] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:08,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:08,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:07:08,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528984521] [2021-10-29 05:07:08,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:07:08,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:08,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:07:08,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:07:08,609 INFO L87 Difference]: Start difference. First operand 199 states and 270 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:08,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:08,755 INFO L93 Difference]: Finished difference Result 226 states and 292 transitions. [2021-10-29 05:07:08,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:07:08,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-29 05:07:08,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:08,758 INFO L225 Difference]: With dead ends: 226 [2021-10-29 05:07:08,758 INFO L226 Difference]: Without dead ends: 226 [2021-10-29 05:07:08,758 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:07:08,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-29 05:07:08,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 199. [2021-10-29 05:07:08,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 196 states have (on average 1.3520408163265305) internal successors, (265), 198 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:08,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 265 transitions. [2021-10-29 05:07:08,767 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 265 transitions. Word has length 34 [2021-10-29 05:07:08,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:08,768 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 265 transitions. [2021-10-29 05:07:08,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:08,768 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 265 transitions. [2021-10-29 05:07:08,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 05:07:08,770 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:08,770 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:08,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:08,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:08,984 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:08,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:08,984 INFO L85 PathProgramCache]: Analyzing trace with hash -864264718, now seen corresponding path program 1 times [2021-10-29 05:07:08,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:08,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652841656] [2021-10-29 05:07:08,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:08,986 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:08,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:08,987 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:08,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-29 05:07:09,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:09,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:07:09,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:09,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:09,482 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:09,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:09,566 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:09,566 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652841656] [2021-10-29 05:07:09,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652841656] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:09,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:09,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:07:09,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689311793] [2021-10-29 05:07:09,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:07:09,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:09,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:07:09,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:07:09,570 INFO L87 Difference]: Start difference. First operand 199 states and 265 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:09,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:09,667 INFO L93 Difference]: Finished difference Result 214 states and 276 transitions. [2021-10-29 05:07:09,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:07:09,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-29 05:07:09,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:09,670 INFO L225 Difference]: With dead ends: 214 [2021-10-29 05:07:09,670 INFO L226 Difference]: Without dead ends: 214 [2021-10-29 05:07:09,671 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:07:09,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-10-29 05:07:09,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 188. [2021-10-29 05:07:09,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 186 states have (on average 1.3440860215053763) internal successors, (250), 187 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:09,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 250 transitions. [2021-10-29 05:07:09,681 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 250 transitions. Word has length 34 [2021-10-29 05:07:09,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:09,681 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 250 transitions. [2021-10-29 05:07:09,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:09,682 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 250 transitions. [2021-10-29 05:07:09,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-29 05:07:09,683 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:09,683 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:09,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:09,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:09,884 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:09,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:09,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1935189253, now seen corresponding path program 1 times [2021-10-29 05:07:09,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:09,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162993295] [2021-10-29 05:07:09,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:09,885 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:09,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:09,886 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:09,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-29 05:07:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:10,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:07:10,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:10,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:10,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:10,579 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:10,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162993295] [2021-10-29 05:07:10,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162993295] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:10,579 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:10,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 11 [2021-10-29 05:07:10,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424345063] [2021-10-29 05:07:10,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 05:07:10,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:10,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 05:07:10,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-29 05:07:10,581 INFO L87 Difference]: Start difference. First operand 188 states and 250 transitions. Second operand has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:10,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:10,934 INFO L93 Difference]: Finished difference Result 213 states and 277 transitions. [2021-10-29 05:07:10,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-29 05:07:10,935 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-10-29 05:07:10,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:10,937 INFO L225 Difference]: With dead ends: 213 [2021-10-29 05:07:10,937 INFO L226 Difference]: Without dead ends: 166 [2021-10-29 05:07:10,937 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-10-29 05:07:10,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-10-29 05:07:10,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2021-10-29 05:07:10,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 164 states have (on average 1.329268292682927) internal successors, (218), 165 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:10,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 218 transitions. [2021-10-29 05:07:10,943 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 218 transitions. Word has length 34 [2021-10-29 05:07:10,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:10,944 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 218 transitions. [2021-10-29 05:07:10,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.454545454545454) internal successors, (49), 11 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:10,944 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 218 transitions. [2021-10-29 05:07:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-29 05:07:10,945 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:10,945 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:10,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:11,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:11,146 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:11,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:11,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1030061199, now seen corresponding path program 1 times [2021-10-29 05:07:11,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:11,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424175385] [2021-10-29 05:07:11,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:11,147 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:11,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:11,149 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:11,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-10-29 05:07:11,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:11,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:07:11,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:11,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:11,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:11,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:11,760 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:11,760 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424175385] [2021-10-29 05:07:11,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424175385] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:11,760 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:11,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:07:11,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543840810] [2021-10-29 05:07:11,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:07:11,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:11,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:07:11,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:07:11,765 INFO L87 Difference]: Start difference. First operand 166 states and 218 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) [2021-10-29 05:07:11,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:11,783 INFO L93 Difference]: Finished difference Result 162 states and 214 transitions. [2021-10-29 05:07:11,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:07:11,784 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 [2021-10-29 05:07:11,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:11,786 INFO L225 Difference]: With dead ends: 162 [2021-10-29 05:07:11,786 INFO L226 Difference]: Without dead ends: 141 [2021-10-29 05:07:11,786 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:07:11,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-10-29 05:07:11,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-10-29 05:07:11,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.3785714285714286) internal successors, (193), 140 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:11,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 193 transitions. [2021-10-29 05:07:11,793 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 193 transitions. Word has length 35 [2021-10-29 05:07:11,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:11,793 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 193 transitions. [2021-10-29 05:07:11,793 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) [2021-10-29 05:07:11,794 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 193 transitions. [2021-10-29 05:07:11,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-29 05:07:11,795 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:11,795 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:11,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-10-29 05:07:12,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:12,010 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:12,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:12,010 INFO L85 PathProgramCache]: Analyzing trace with hash -2102888975, now seen corresponding path program 1 times [2021-10-29 05:07:12,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:12,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1697363890] [2021-10-29 05:07:12,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:12,011 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:12,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:12,012 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:12,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-10-29 05:07:12,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:12,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:07:12,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:12,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:12,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:12,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:12,877 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:12,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1697363890] [2021-10-29 05:07:12,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1697363890] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:12,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:12,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:07:12,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731474680] [2021-10-29 05:07:12,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:07:12,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:12,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:07:12,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:07:12,879 INFO L87 Difference]: Start difference. First operand 141 states and 193 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:12,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:12,981 INFO L93 Difference]: Finished difference Result 133 states and 177 transitions. [2021-10-29 05:07:12,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:07:12,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-10-29 05:07:12,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:12,983 INFO L225 Difference]: With dead ends: 133 [2021-10-29 05:07:12,983 INFO L226 Difference]: Without dead ends: 133 [2021-10-29 05:07:12,983 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:07:12,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-29 05:07:12,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2021-10-29 05:07:12,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 124 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:12,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 169 transitions. [2021-10-29 05:07:12,987 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 169 transitions. Word has length 35 [2021-10-29 05:07:12,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:12,988 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 169 transitions. [2021-10-29 05:07:12,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:12,988 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 169 transitions. [2021-10-29 05:07:12,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-29 05:07:12,989 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:12,989 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:13,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:13,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:13,200 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:13,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:13,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1665760845, now seen corresponding path program 1 times [2021-10-29 05:07:13,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:13,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929039711] [2021-10-29 05:07:13,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:13,201 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:13,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:13,203 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:13,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-29 05:07:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:07:13,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:07:13,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:07:13,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:13,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:07:14,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:07:14,062 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:07:14,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1929039711] [2021-10-29 05:07:14,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1929039711] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:07:14,062 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:07:14,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2021-10-29 05:07:14,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572854710] [2021-10-29 05:07:14,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-29 05:07:14,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:07:14,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-29 05:07:14,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:07:14,064 INFO L87 Difference]: Start difference. First operand 125 states and 169 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:14,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:07:14,627 INFO L93 Difference]: Finished difference Result 180 states and 224 transitions. [2021-10-29 05:07:14,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-29 05:07:14,628 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 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 35 [2021-10-29 05:07:14,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:07:14,629 INFO L225 Difference]: With dead ends: 180 [2021-10-29 05:07:14,629 INFO L226 Difference]: Without dead ends: 95 [2021-10-29 05:07:14,630 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2021-10-29 05:07:14,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-29 05:07:14,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 77. [2021-10-29 05:07:14,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.263157894736842) internal successors, (96), 76 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:14,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 96 transitions. [2021-10-29 05:07:14,633 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 96 transitions. Word has length 35 [2021-10-29 05:07:14,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:07:14,633 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 96 transitions. [2021-10-29 05:07:14,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:07:14,634 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 96 transitions. [2021-10-29 05:07:14,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-29 05:07:14,634 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:07:14,634 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:14,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:14,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:14,843 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 28 more)] === [2021-10-29 05:07:14,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:07:14,844 INFO L85 PathProgramCache]: Analyzing trace with hash 724480386, now seen corresponding path program 1 times [2021-10-29 05:07:14,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:07:14,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741083517] [2021-10-29 05:07:14,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:07:14,845 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:07:14,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:07:14,846 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:07:14,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-29 05:07:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:07:15,311 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:07:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:07:15,461 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 05:07:15,462 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:07:15,463 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,468 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,469 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,470 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,471 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,472 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,473 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK [2021-10-29 05:07:15,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-29 05:07:15,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:07:15,691 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:07:15,695 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:07:15,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:07:15 BoogieIcfgContainer [2021-10-29 05:07:15,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:07:15,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:07:15,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:07:15,872 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:07:15,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:06:54" (3/4) ... [2021-10-29 05:07:15,877 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 05:07:15,877 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:07:15,878 INFO L168 Benchmark]: Toolchain (without parser) took 24445.36 ms. Allocated memory was 60.8 MB in the beginning and 123.7 MB in the end (delta: 62.9 MB). Free memory was 40.1 MB in the beginning and 91.7 MB in the end (delta: -51.6 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:07:15,881 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 60.8 MB. Free memory is still 42.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:07:15,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.12 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 38.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-29 05:07:15,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 174.96 ms. Allocated memory is still 60.8 MB. Free memory was 38.5 MB in the beginning and 33.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:07:15,884 INFO L168 Benchmark]: Boogie Preprocessor took 160.17 ms. Allocated memory is still 60.8 MB. Free memory was 33.0 MB in the beginning and 29.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:07:15,885 INFO L168 Benchmark]: RCFGBuilder took 1754.99 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 29.0 MB in the beginning and 39.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:07:15,885 INFO L168 Benchmark]: TraceAbstraction took 21697.44 ms. Allocated memory was 79.7 MB in the beginning and 123.7 MB in the end (delta: 44.0 MB). Free memory was 39.1 MB in the beginning and 92.7 MB in the end (delta: -53.7 MB). Peak memory consumption was 54.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:07:15,886 INFO L168 Benchmark]: Witness Printer took 5.33 ms. Allocated memory is still 123.7 MB. Free memory was 92.7 MB in the beginning and 91.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:07:15,888 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 60.8 MB. Free memory is still 42.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 645.12 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 38.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 174.96 ms. Allocated memory is still 60.8 MB. Free memory was 38.5 MB in the beginning and 33.0 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 160.17 ms. Allocated memory is still 60.8 MB. Free memory was 33.0 MB in the beginning and 29.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1754.99 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 29.0 MB in the beginning and 39.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21697.44 ms. Allocated memory was 79.7 MB in the beginning and 123.7 MB in the end (delta: 44.0 MB). Free memory was 39.1 MB in the beginning and 92.7 MB in the end (delta: -53.7 MB). Peak memory consumption was 54.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.33 ms. Allocated memory is still 123.7 MB. Free memory was 92.7 MB in the beginning and 91.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1013. Possible FailurePath: [L23] int KernelMode ; [L24] int Executive ; [L25] int DevicePowerState ; [L26] int s ; [L27] int UNLOADED ; [L28] int NP ; [L29] int DC ; [L30] int SKIP1 ; [L31] int SKIP2 ; [L32] int MPR1 ; [L33] int MPR3 ; [L34] int IPC ; [L35] int pended ; [L36] int compFptr ; [L37] int compRegistered ; [L38] int lowerDriverReturn ; [L39] int setEventCalled ; [L40] int customIrp ; [L41] int myStatus ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=0, DevicePowerState=0, Executive=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MPR1=0, MPR3=0, myStatus=0, NP=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, UNLOADED=0] [L294] int status ; [L295] int irp = __VERIFIER_nondet_int() ; [L296] int pirp ; [L297] int pirp__IoStatus__Status ; [L298] int irp_choice = __VERIFIER_nondet_int() ; [L299] int devobj = __VERIFIER_nondet_int() ; [L300] int __cil_tmp8 ; [L302] KernelMode = 0 [L303] Executive = 0 [L304] DevicePowerState = 1 [L305] s = 0 [L306] UNLOADED = 0 [L307] NP = 0 [L308] DC = 0 [L309] SKIP1 = 0 [L310] SKIP2 = 0 [L311] MPR1 = 0 [L312] MPR3 = 0 [L313] IPC = 0 [L314] pended = 0 [L315] compFptr = 0 [L316] compRegistered = 0 [L317] lowerDriverReturn = 0 [L318] setEventCalled = 0 [L319] customIrp = 0 [L320] myStatus = 0 [L324] status = 0 [L325] pirp = irp [L61] UNLOADED = 0 [L62] NP = 1 [L63] DC = 2 [L64] SKIP1 = 3 [L65] SKIP2 = 4 [L66] MPR1 = 5 [L67] MPR3 = 6 [L68] IPC = 7 [L69] s = UNLOADED [L70] pended = 0 [L71] compFptr = 0 [L72] compRegistered = 0 [L73] lowerDriverReturn = 0 [L74] setEventCalled = 0 [L75] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L328] COND TRUE status >= 0 [L329] s = NP [L330] customIrp = 0 [L331] setEventCalled = customIrp [L332] lowerDriverReturn = setEventCalled [L333] compRegistered = lowerDriverReturn [L334] pended = compRegistered [L335] pirp__IoStatus__Status = 0 [L336] myStatus = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=0, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L337] COND TRUE irp_choice == 0 [L338] pirp__IoStatus__Status = -1073741637 [L339] myStatus = -1073741637 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L47] s = NP [L48] pended = 0 [L49] compFptr = 0 [L50] compRegistered = 0 [L51] lowerDriverReturn = 0 [L52] setEventCalled = 0 [L53] customIrp = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L345] COND FALSE !(status < 0) [L349] int tmp_ndt_1; [L350] tmp_ndt_1 = __VERIFIER_nondet_int() [L351] COND FALSE !(tmp_ndt_1 == 0) [L354] int tmp_ndt_2; [L355] tmp_ndt_2 = __VERIFIER_nondet_int() [L356] COND FALSE !(tmp_ndt_2 == 1) [L359] int tmp_ndt_3; [L360] tmp_ndt_3 = __VERIFIER_nondet_int() [L361] COND TRUE tmp_ndt_3 == 3 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L80] int devExt ; [L81] int irpStack ; [L82] int status ; [L83] int event = __VERIFIER_nondet_int() ; [L84] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L85] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L86] int irpStack__MinorFunction = __VERIFIER_nondet_int() ; [L87] int devExt__TopOfStack = __VERIFIER_nondet_int() ; [L88] int devExt__Started ; [L89] int devExt__Removed ; [L90] int devExt__SurpriseRemoved ; [L91] int Irp__IoStatus__Status ; [L92] int Irp__IoStatus__Information ; [L93] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L94] int irpSp ; [L95] int nextIrpSp ; [L96] int nextIrpSp__Control ; [L97] int irpSp___0 ; [L98] int irpSp__Context ; [L99] int irpSp__Control ; [L100] long __cil_tmp23 ; [L103] status = 0 [L104] devExt = DeviceObject__DeviceExtension [L105] irpStack = Irp__Tail__Overlay__CurrentStackLocation VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L106] COND FALSE !(irpStack__MinorFunction == 0) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L109] COND FALSE !(irpStack__MinorFunction == 23) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L112] COND TRUE irpStack__MinorFunction == 2 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L236] devExt__Removed = 1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L237] COND TRUE s == NP [L238] s = SKIP1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L245] Irp__CurrentLocation ++ [L246] Irp__Tail__Overlay__CurrentStackLocation ++ [L483] int returnVal2 ; [L484] int compRetStatus ; [L485] int lcontext = __VERIFIER_nondet_int() ; [L486] long long __cil_tmp7 ; VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L489] COND FALSE !(\read(compRegistered)) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L502] int tmp_ndt_6; [L503] tmp_ndt_6 = __VERIFIER_nondet_int() [L504] COND FALSE !(tmp_ndt_6 == 0) [L507] int tmp_ndt_7; [L508] tmp_ndt_7 = __VERIFIER_nondet_int() [L509] COND TRUE tmp_ndt_7 == 1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L518] returnVal2 = -1073741823 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L528] COND FALSE !(s == NP) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L532] COND FALSE !(s == MPR1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L541] COND TRUE s == SKIP1 [L542] s = SKIP2 [L543] lowerDriverReturn = returnVal2 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L551] return (returnVal2); VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L248] status = 0 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L290] return (status); VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L388] status = KbFilter_PnP(devobj, pirp) [L412] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L420] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L428] COND TRUE s != UNLOADED VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L429] COND TRUE status != -1 VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L430] COND FALSE !(s != SKIP2) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L440] COND FALSE !(pended == 1) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L447] COND FALSE !(s == DC) VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L452] COND TRUE status != lowerDriverReturn VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] [L1013] reach_error() VAL [compFptr=0, compRegistered=0, customIrp=0, DC=2, DevicePowerState=1, Executive=0, IPC=7, KernelMode=0, lowerDriverReturn=3221225473, MPR1=5, MPR3=6, myStatus=3221225659, NP=1, pended=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, UNLOADED=0] - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1013]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 293]: 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, 331 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 21.4s, OverallIterations: 22, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6425 SDtfs, 6678 SDslu, 10063 SDs, 0 SdLazy, 2203 SolverSat, 409 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1144 GetRequests, 1023 SyntacticMatches, 2 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=357occurred in iteration=2, InterpolantAutomatonStates: 113, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 21 MinimizatonAttempts, 354 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 606 NumberOfCodeBlocks, 606 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1096 ConstructedInterpolants, 0 QuantifiedInterpolants, 2737 SizeOfPredicates, 41 NumberOfNonLiveVariables, 2701 ConjunctsInSsa, 77 ConjunctsInUnsatCore, 42 InterpolantComputations, 42 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 05:07:15,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff0bd466-5077-4ce3-94d5-3fdabfdc9cd0/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...