./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh --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 a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:48:53,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:48:53,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:48:53,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:48:53,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:48:53,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:48:53,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:48:53,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:48:53,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:48:53,179 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:48:53,180 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:48:53,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:48:53,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:48:53,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:48:53,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:48:53,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:48:53,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:48:53,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:48:53,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:48:53,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:48:53,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:48:53,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:48:53,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:48:53,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:48:53,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:48:53,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:48:53,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:48:53,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:48:53,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:48:53,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:48:53,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:48:53,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:48:53,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:48:53,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:48:53,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:48:53,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:48:53,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:48:53,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:48:53,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:48:53,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:48:53,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:48:53,201 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 14:48:53,216 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:48:53,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:48:53,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:48:53,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:48:53,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:48:53,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:48:53,218 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:48:53,218 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:48:53,218 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:48:53,218 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:48:53,218 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:48:53,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:48:53,219 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:48:53,219 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:48:53,219 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:48:53,219 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:48:53,219 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:48:53,219 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:48:53,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 14:48:53,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 14:48:53,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:48:53,220 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 14:48:53,220 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:48:53,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:48:53,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 14:48:53,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:48:53,221 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 14:48:53,221 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 14:48:53,221 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 14:48:53,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:48:53,221 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:48:53,221 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 14:48:53,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:48:53,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:48:53,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:48:53,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:48:53,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:48:53,222 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:48:53,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:48:53,222 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:48:53,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:48:53,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:48:53,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900e47bcb0579a731ecfed3c71b01054e5f0917c7f65049265d17494d326436 [2022-12-14 14:48:53,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:48:53,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:48:53,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:48:53,431 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:48:53,431 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:48:53,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-12-14 14:48:55,976 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:48:56,184 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:48:56,184 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2022-12-14 14:48:56,195 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/data/354aec58e/ebbc550bd2c44ab4ab1f10bbbe3e370a/FLAG6fba45411 [2022-12-14 14:48:56,570 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/data/354aec58e/ebbc550bd2c44ab4ab1f10bbbe3e370a [2022-12-14 14:48:56,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:48:56,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:48:56,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:48:56,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:48:56,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:48:56,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307a9294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56, skipping insertion in model container [2022-12-14 14:48:56,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:48:56,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:48:56,744 WARN L237 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_20afc4ef-5cf7-4dd3-9735-7890d4a51126/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-12-14 14:48:56,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:48:56,864 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:48:56,873 WARN L237 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_20afc4ef-5cf7-4dd3-9735-7890d4a51126/sv-benchmarks/c/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i[1103,1116] [2022-12-14 14:48:56,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:48:56,928 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:48:56,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56 WrapperNode [2022-12-14 14:48:56,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:48:56,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:48:56,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:48:56,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:48:56,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,963 INFO L138 Inliner]: procedures = 162, calls = 40, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2022-12-14 14:48:56,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:48:56,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:48:56,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:48:56,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:48:56,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,983 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:48:56,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:48:56,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:48:56,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:48:56,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (1/1) ... [2022-12-14 14:48:56,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:48:57,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:48:57,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:48:57,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:48:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:48:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-14 14:48:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-14 14:48:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:48:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 14:48:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:48:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:48:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:48:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:48:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:48:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:48:57,054 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 14:48:57,147 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:48:57,148 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:48:57,310 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:48:57,316 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:48:57,317 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:48:57,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:48:57 BoogieIcfgContainer [2022-12-14 14:48:57,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:48:57,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:48:57,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:48:57,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:48:57,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:48:56" (1/3) ... [2022-12-14 14:48:57,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a157755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:48:57, skipping insertion in model container [2022-12-14 14:48:57,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:48:56" (2/3) ... [2022-12-14 14:48:57,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a157755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:48:57, skipping insertion in model container [2022-12-14 14:48:57,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:48:57" (3/3) ... [2022-12-14 14:48:57,325 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2022-12-14 14:48:57,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:48:57,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-14 14:48:57,338 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 14:48:57,380 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-14 14:48:57,411 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 14:48:57,424 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 119 transitions, 246 flow [2022-12-14 14:48:57,426 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 119 transitions, 246 flow [2022-12-14 14:48:57,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 119 transitions, 246 flow [2022-12-14 14:48:57,484 INFO L130 PetriNetUnfolder]: 3/118 cut-off events. [2022-12-14 14:48:57,485 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-14 14:48:57,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 118 events. 3/118 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2022-12-14 14:48:57,492 INFO L119 LiptonReduction]: Number of co-enabled transitions 1692 [2022-12-14 14:49:00,636 INFO L134 LiptonReduction]: Checked pairs total: 5250 [2022-12-14 14:49:00,636 INFO L136 LiptonReduction]: Total number of compositions: 115 [2022-12-14 14:49:00,642 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 34 transitions, 76 flow [2022-12-14 14:49:00,657 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 159 states, 151 states have (on average 2.013245033112583) internal successors, (304), 158 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:00,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:49:00,674 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@180b33c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:49:00,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-12-14 14:49:00,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 151 states have (on average 2.013245033112583) internal successors, (304), 158 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:00,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 14:49:00,679 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:00,679 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 14:49:00,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:00,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:00,683 INFO L85 PathProgramCache]: Analyzing trace with hash 415, now seen corresponding path program 1 times [2022-12-14 14:49:00,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:00,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041174322] [2022-12-14 14:49:00,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:00,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:00,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:00,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041174322] [2022-12-14 14:49:00,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041174322] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:00,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:00,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 14:49:00,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341514413] [2022-12-14 14:49:00,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:00,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 14:49:00,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:00,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 14:49:00,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:49:00,784 INFO L87 Difference]: Start difference. First operand has 159 states, 151 states have (on average 2.013245033112583) internal successors, (304), 158 states have internal predecessors, (304), 0 states have call successors, (0), 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 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:00,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:00,831 INFO L93 Difference]: Finished difference Result 157 states and 284 transitions. [2022-12-14 14:49:00,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 14:49:00,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-12-14 14:49:00,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:00,839 INFO L225 Difference]: With dead ends: 157 [2022-12-14 14:49:00,840 INFO L226 Difference]: Without dead ends: 157 [2022-12-14 14:49:00,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 14:49:00,842 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:00,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:49:00,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-12-14 14:49:00,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-12-14 14:49:00,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 151 states have (on average 1.880794701986755) internal successors, (284), 156 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:00,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 284 transitions. [2022-12-14 14:49:00,882 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 284 transitions. Word has length 1 [2022-12-14 14:49:00,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:00,882 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 284 transitions. [2022-12-14 14:49:00,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 284 transitions. [2022-12-14 14:49:00,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 14:49:00,882 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:00,882 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 14:49:00,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:49:00,883 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:00,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:00,883 INFO L85 PathProgramCache]: Analyzing trace with hash 392632136, now seen corresponding path program 1 times [2022-12-14 14:49:00,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:00,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784899154] [2022-12-14 14:49:00,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:00,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:01,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:01,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:01,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784899154] [2022-12-14 14:49:01,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784899154] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:01,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:01,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:49:01,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057408758] [2022-12-14 14:49:01,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:01,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:49:01,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:01,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:49:01,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:49:01,030 INFO L87 Difference]: Start difference. First operand 157 states and 284 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:01,072 INFO L93 Difference]: Finished difference Result 154 states and 278 transitions. [2022-12-14 14:49:01,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:49:01,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 14:49:01,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:01,074 INFO L225 Difference]: With dead ends: 154 [2022-12-14 14:49:01,074 INFO L226 Difference]: Without dead ends: 154 [2022-12-14 14:49:01,074 INFO L412 NwaCegarLoop]: 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 [2022-12-14 14:49:01,076 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 15 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:01,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 5 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:49:01,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-12-14 14:49:01,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2022-12-14 14:49:01,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 148 states have (on average 1.8783783783783783) internal successors, (278), 153 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 278 transitions. [2022-12-14 14:49:01,083 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 278 transitions. Word has length 5 [2022-12-14 14:49:01,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:01,083 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 278 transitions. [2022-12-14 14:49:01,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,083 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 278 transitions. [2022-12-14 14:49:01,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 14:49:01,084 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:01,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:01,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:49:01,084 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:01,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:01,084 INFO L85 PathProgramCache]: Analyzing trace with hash -637656808, now seen corresponding path program 1 times [2022-12-14 14:49:01,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:01,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819778788] [2022-12-14 14:49:01,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:01,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:01,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:01,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:01,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819778788] [2022-12-14 14:49:01,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819778788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:01,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:01,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:49:01,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082874595] [2022-12-14 14:49:01,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:01,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:49:01,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:01,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:49:01,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:49:01,165 INFO L87 Difference]: Start difference. First operand 154 states and 278 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:01,238 INFO L93 Difference]: Finished difference Result 157 states and 283 transitions. [2022-12-14 14:49:01,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:49:01,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 14:49:01,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:01,240 INFO L225 Difference]: With dead ends: 157 [2022-12-14 14:49:01,240 INFO L226 Difference]: Without dead ends: 157 [2022-12-14 14:49:01,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:01,241 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 40 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:01,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 12 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:49:01,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-12-14 14:49:01,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2022-12-14 14:49:01,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 151 states have (on average 1.8741721854304636) internal successors, (283), 156 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 283 transitions. [2022-12-14 14:49:01,252 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 283 transitions. Word has length 7 [2022-12-14 14:49:01,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:01,253 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 283 transitions. [2022-12-14 14:49:01,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 283 transitions. [2022-12-14 14:49:01,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:49:01,253 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:01,253 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:01,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:49:01,254 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:01,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:01,254 INFO L85 PathProgramCache]: Analyzing trace with hash 710570853, now seen corresponding path program 1 times [2022-12-14 14:49:01,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:01,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461113461] [2022-12-14 14:49:01,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:01,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:01,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:01,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:01,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461113461] [2022-12-14 14:49:01,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461113461] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:01,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:01,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:49:01,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926144065] [2022-12-14 14:49:01,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:01,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:49:01,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:01,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:49:01,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:01,354 INFO L87 Difference]: Start difference. First operand 157 states and 283 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:01,456 INFO L93 Difference]: Finished difference Result 151 states and 271 transitions. [2022-12-14 14:49:01,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:49:01,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 14:49:01,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:01,457 INFO L225 Difference]: With dead ends: 151 [2022-12-14 14:49:01,457 INFO L226 Difference]: Without dead ends: 151 [2022-12-14 14:49:01,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:49:01,458 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 71 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:01,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 12 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:49:01,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-12-14 14:49:01,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-12-14 14:49:01,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 145 states have (on average 1.8689655172413793) internal successors, (271), 150 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 271 transitions. [2022-12-14 14:49:01,466 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 271 transitions. Word has length 8 [2022-12-14 14:49:01,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:01,467 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 271 transitions. [2022-12-14 14:49:01,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,467 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 271 transitions. [2022-12-14 14:49:01,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 14:49:01,467 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:01,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:01,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:49:01,468 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:01,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:01,468 INFO L85 PathProgramCache]: Analyzing trace with hash -41227787, now seen corresponding path program 1 times [2022-12-14 14:49:01,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:01,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092725274] [2022-12-14 14:49:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:01,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:01,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:01,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:01,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:01,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092725274] [2022-12-14 14:49:01,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092725274] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:01,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:01,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:01,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632629061] [2022-12-14 14:49:01,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:01,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:49:01,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:01,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:49:01,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:49:01,561 INFO L87 Difference]: Start difference. First operand 151 states and 271 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2022-12-14 14:49:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:01,662 INFO L93 Difference]: Finished difference Result 157 states and 282 transitions. [2022-12-14 14:49:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 14:49:01,663 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 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 [2022-12-14 14:49:01,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:01,664 INFO L225 Difference]: With dead ends: 157 [2022-12-14 14:49:01,664 INFO L226 Difference]: Without dead ends: 157 [2022-12-14 14:49:01,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-12-14 14:49:01,665 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 114 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:01,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 11 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:49:01,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-12-14 14:49:01,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 139. [2022-12-14 14:49:01,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 134 states have (on average 1.8582089552238805) internal successors, (249), 138 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 249 transitions. [2022-12-14 14:49:01,673 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 249 transitions. Word has length 10 [2022-12-14 14:49:01,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:01,673 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 249 transitions. [2022-12-14 14:49:01,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2022-12-14 14:49:01,673 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 249 transitions. [2022-12-14 14:49:01,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:49:01,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:01,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:01,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 14:49:01,674 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:01,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:01,675 INFO L85 PathProgramCache]: Analyzing trace with hash 933780974, now seen corresponding path program 1 times [2022-12-14 14:49:01,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:01,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714420908] [2022-12-14 14:49:01,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:01,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:01,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:01,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:01,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714420908] [2022-12-14 14:49:01,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714420908] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:01,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:01,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:01,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134778883] [2022-12-14 14:49:01,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:01,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:49:01,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:01,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:49:01,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:49:01,744 INFO L87 Difference]: Start difference. First operand 139 states and 249 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:01,830 INFO L93 Difference]: Finished difference Result 139 states and 246 transitions. [2022-12-14 14:49:01,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 14:49:01,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 14:49:01,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:01,831 INFO L225 Difference]: With dead ends: 139 [2022-12-14 14:49:01,831 INFO L226 Difference]: Without dead ends: 139 [2022-12-14 14:49:01,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-14 14:49:01,832 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 124 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:01,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 15 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:49:01,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-12-14 14:49:01,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2022-12-14 14:49:01,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 132 states have (on average 1.8484848484848484) internal successors, (244), 135 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) [2022-12-14 14:49:01,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 244 transitions. [2022-12-14 14:49:01,838 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 244 transitions. Word has length 11 [2022-12-14 14:49:01,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:01,838 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 244 transitions. [2022-12-14 14:49:01,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:01,839 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 244 transitions. [2022-12-14 14:49:01,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:49:01,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:01,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:01,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:49:01,840 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:01,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:01,840 INFO L85 PathProgramCache]: Analyzing trace with hash 144986801, now seen corresponding path program 1 times [2022-12-14 14:49:01,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:01,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222233615] [2022-12-14 14:49:01,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:01,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:01,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:01,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:01,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222233615] [2022-12-14 14:49:01,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222233615] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:01,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:01,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:49:01,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517351078] [2022-12-14 14:49:01,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:01,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:49:01,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:01,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:49:01,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:01,979 INFO L87 Difference]: Start difference. First operand 136 states and 244 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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) [2022-12-14 14:49:02,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:02,034 INFO L93 Difference]: Finished difference Result 135 states and 213 transitions. [2022-12-14 14:49:02,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:02,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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 [2022-12-14 14:49:02,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:02,036 INFO L225 Difference]: With dead ends: 135 [2022-12-14 14:49:02,036 INFO L226 Difference]: Without dead ends: 135 [2022-12-14 14:49:02,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:02,036 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 36 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:02,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 4 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 14:49:02,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-12-14 14:49:02,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 113. [2022-12-14 14:49:02,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 108 states have (on average 1.6574074074074074) internal successors, (179), 112 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:02,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 179 transitions. [2022-12-14 14:49:02,039 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 179 transitions. Word has length 13 [2022-12-14 14:49:02,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:02,040 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 179 transitions. [2022-12-14 14:49:02,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 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) [2022-12-14 14:49:02,040 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 179 transitions. [2022-12-14 14:49:02,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:49:02,040 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:02,040 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:02,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 14:49:02,040 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:02,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:02,041 INFO L85 PathProgramCache]: Analyzing trace with hash -691916764, now seen corresponding path program 1 times [2022-12-14 14:49:02,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:02,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108964883] [2022-12-14 14:49:02,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:02,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:02,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:02,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:02,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:02,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108964883] [2022-12-14 14:49:02,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108964883] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:02,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:02,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:49:02,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430325776] [2022-12-14 14:49:02,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:02,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:49:02,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:02,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:49:02,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:49:02,102 INFO L87 Difference]: Start difference. First operand 113 states and 179 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2022-12-14 14:49:02,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:02,124 INFO L93 Difference]: Finished difference Result 104 states and 162 transitions. [2022-12-14 14:49:02,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:49:02,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2022-12-14 14:49:02,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:02,125 INFO L225 Difference]: With dead ends: 104 [2022-12-14 14:49:02,125 INFO L226 Difference]: Without dead ends: 104 [2022-12-14 14:49:02,125 INFO L412 NwaCegarLoop]: 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 [2022-12-14 14:49:02,126 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:02,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:49:02,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-12-14 14:49:02,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2022-12-14 14:49:02,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.62) internal successors, (162), 103 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) [2022-12-14 14:49:02,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 162 transitions. [2022-12-14 14:49:02,128 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 162 transitions. Word has length 13 [2022-12-14 14:49:02,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:02,128 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 162 transitions. [2022-12-14 14:49:02,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2022-12-14 14:49:02,129 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 162 transitions. [2022-12-14 14:49:02,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 14:49:02,129 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:02,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:02,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 14:49:02,129 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:02,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:02,130 INFO L85 PathProgramCache]: Analyzing trace with hash -691916765, now seen corresponding path program 1 times [2022-12-14 14:49:02,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:02,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715239911] [2022-12-14 14:49:02,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:02,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:02,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:02,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:02,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:02,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715239911] [2022-12-14 14:49:02,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715239911] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:02,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:02,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:49:02,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968503464] [2022-12-14 14:49:02,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:02,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:49:02,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:02,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:49:02,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:49:02,175 INFO L87 Difference]: Start difference. First operand 104 states and 162 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2022-12-14 14:49:02,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:02,194 INFO L93 Difference]: Finished difference Result 95 states and 145 transitions. [2022-12-14 14:49:02,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:49:02,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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 [2022-12-14 14:49:02,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:02,195 INFO L225 Difference]: With dead ends: 95 [2022-12-14 14:49:02,195 INFO L226 Difference]: Without dead ends: 95 [2022-12-14 14:49:02,196 INFO L412 NwaCegarLoop]: 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 [2022-12-14 14:49:02,196 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:02,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:49:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-12-14 14:49:02,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2022-12-14 14:49:02,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 92 states have (on average 1.576086956521739) internal successors, (145), 94 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:02,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 145 transitions. [2022-12-14 14:49:02,200 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 145 transitions. Word has length 13 [2022-12-14 14:49:02,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:02,201 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 145 transitions. [2022-12-14 14:49:02,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 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) [2022-12-14 14:49:02,201 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 145 transitions. [2022-12-14 14:49:02,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 14:49:02,202 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:02,202 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:02,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 14:49:02,202 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:02,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:02,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1943620415, now seen corresponding path program 1 times [2022-12-14 14:49:02,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:02,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025964949] [2022-12-14 14:49:02,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:02,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:02,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:02,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:02,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025964949] [2022-12-14 14:49:02,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025964949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:02,337 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:02,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 14:49:02,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209711457] [2022-12-14 14:49:02,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:02,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 14:49:02,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:02,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 14:49:02,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:49:02,338 INFO L87 Difference]: Start difference. First operand 95 states and 145 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:02,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:02,380 INFO L93 Difference]: Finished difference Result 73 states and 99 transitions. [2022-12-14 14:49:02,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:49:02,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 14:49:02,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:02,381 INFO L225 Difference]: With dead ends: 73 [2022-12-14 14:49:02,381 INFO L226 Difference]: Without dead ends: 73 [2022-12-14 14:49:02,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-14 14:49:02,381 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:02,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 1 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:49:02,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-14 14:49:02,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-12-14 14:49:02,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 72 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) [2022-12-14 14:49:02,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 99 transitions. [2022-12-14 14:49:02,384 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 99 transitions. Word has length 14 [2022-12-14 14:49:02,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:02,385 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 99 transitions. [2022-12-14 14:49:02,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:02,385 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 99 transitions. [2022-12-14 14:49:02,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 14:49:02,385 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:02,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:02,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 14:49:02,386 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:02,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:02,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1670966978, now seen corresponding path program 1 times [2022-12-14 14:49:02,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:02,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972397377] [2022-12-14 14:49:02,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:02,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:02,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:02,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972397377] [2022-12-14 14:49:02,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972397377] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:02,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:02,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:49:02,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303499454] [2022-12-14 14:49:02,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:02,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 14:49:02,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:02,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 14:49:02,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:49:02,505 INFO L87 Difference]: Start difference. First operand 73 states and 99 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2022-12-14 14:49:02,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:02,556 INFO L93 Difference]: Finished difference Result 72 states and 98 transitions. [2022-12-14 14:49:02,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 14:49:02,557 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 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 [2022-12-14 14:49:02,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:02,558 INFO L225 Difference]: With dead ends: 72 [2022-12-14 14:49:02,558 INFO L226 Difference]: Without dead ends: 72 [2022-12-14 14:49:02,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 14:49:02,559 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:02,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 6 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:49:02,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-12-14 14:49:02,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-12-14 14:49:02,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.380281690140845) internal successors, (98), 71 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:02,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 98 transitions. [2022-12-14 14:49:02,561 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 98 transitions. Word has length 18 [2022-12-14 14:49:02,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:02,561 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 98 transitions. [2022-12-14 14:49:02,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2022-12-14 14:49:02,561 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 98 transitions. [2022-12-14 14:49:02,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 14:49:02,562 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:49:02,562 INFO L195 NwaCegarLoop]: 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] [2022-12-14 14:49:02,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 14:49:02,562 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2022-12-14 14:49:02,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:49:02,563 INFO L85 PathProgramCache]: Analyzing trace with hash 719238274, now seen corresponding path program 1 times [2022-12-14 14:49:02,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:49:02,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072832123] [2022-12-14 14:49:02,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:49:02,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:49:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:49:02,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:49:02,644 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:49:02,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072832123] [2022-12-14 14:49:02,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072832123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:49:02,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:49:02,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 14:49:02,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051729304] [2022-12-14 14:49:02,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:49:02,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:49:02,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:49:02,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:49:02,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:49:02,645 INFO L87 Difference]: Start difference. First operand 72 states and 98 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 2 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) [2022-12-14 14:49:02,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:49:02,664 INFO L93 Difference]: Finished difference Result 71 states and 97 transitions. [2022-12-14 14:49:02,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:49:02,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 2 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 [2022-12-14 14:49:02,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:49:02,664 INFO L225 Difference]: With dead ends: 71 [2022-12-14 14:49:02,664 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 14:49:02,665 INFO L412 NwaCegarLoop]: 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 [2022-12-14 14:49:02,665 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:49:02,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:49:02,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 14:49:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 14:49:02,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:49:02,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 14:49:02,666 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-12-14 14:49:02,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:49:02,666 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 14:49:02,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 2 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) [2022-12-14 14:49:02,667 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 14:49:02,667 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 14:49:02,669 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 9 remaining) [2022-12-14 14:49:02,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 9 remaining) [2022-12-14 14:49:02,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (6 of 9 remaining) [2022-12-14 14:49:02,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (5 of 9 remaining) [2022-12-14 14:49:02,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (4 of 9 remaining) [2022-12-14 14:49:02,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 9 remaining) [2022-12-14 14:49:02,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 9 remaining) [2022-12-14 14:49:02,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (1 of 9 remaining) [2022-12-14 14:49:02,670 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 9 remaining) [2022-12-14 14:49:02,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 14:49:02,673 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:49:02,675 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 14:49:02,675 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:49:02,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:49:02 BasicIcfg [2022-12-14 14:49:02,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:49:02,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:49:02,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:49:02,678 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:49:02,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:48:57" (3/4) ... [2022-12-14 14:49:02,681 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 14:49:02,688 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-12-14 14:49:02,692 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-12-14 14:49:02,692 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 14:49:02,692 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 14:49:02,692 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 14:49:02,716 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:49:02,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:49:02,717 INFO L158 Benchmark]: Toolchain (without parser) took 6140.65ms. Allocated memory was 130.0MB in the beginning and 182.5MB in the end (delta: 52.4MB). Free memory was 93.4MB in the beginning and 94.8MB in the end (delta: -1.4MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2022-12-14 14:49:02,717 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 130.0MB. Free memory was 97.2MB in the beginning and 97.2MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:49:02,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.66ms. Allocated memory is still 130.0MB. Free memory was 93.4MB in the beginning and 73.9MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 14:49:02,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.50ms. Allocated memory is still 130.0MB. Free memory was 73.9MB in the beginning and 72.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:49:02,718 INFO L158 Benchmark]: Boogie Preprocessor took 22.94ms. Allocated memory is still 130.0MB. Free memory was 72.0MB in the beginning and 70.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:49:02,718 INFO L158 Benchmark]: RCFGBuilder took 330.41ms. Allocated memory is still 130.0MB. Free memory was 70.4MB in the beginning and 55.2MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 14:49:02,718 INFO L158 Benchmark]: TraceAbstraction took 5357.63ms. Allocated memory was 130.0MB in the beginning and 182.5MB in the end (delta: 52.4MB). Free memory was 54.7MB in the beginning and 98.0MB in the end (delta: -43.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-12-14 14:49:02,718 INFO L158 Benchmark]: Witness Printer took 38.42ms. Allocated memory is still 182.5MB. Free memory was 98.0MB in the beginning and 94.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:49:02,720 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 130.0MB. Free memory was 97.2MB in the beginning and 97.2MB in the end (delta: 29.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.66ms. Allocated memory is still 130.0MB. Free memory was 93.4MB in the beginning and 73.9MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.50ms. Allocated memory is still 130.0MB. Free memory was 73.9MB in the beginning and 72.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.94ms. Allocated memory is still 130.0MB. Free memory was 72.0MB in the beginning and 70.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 330.41ms. Allocated memory is still 130.0MB. Free memory was 70.4MB in the beginning and 55.2MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5357.63ms. Allocated memory was 130.0MB in the beginning and 182.5MB in the end (delta: 52.4MB). Free memory was 54.7MB in the beginning and 98.0MB in the end (delta: -43.3MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * Witness Printer took 38.42ms. Allocated memory is still 182.5MB. Free memory was 98.0MB in the beginning and 94.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.2s, 120 PlacesBefore, 36 PlacesAfterwards, 119 TransitionsBefore, 34 TransitionsAfterwards, 1692 CoEnabledTransitionPairs, 8 FixpointIterations, 52 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 115 TotalNumberOfCompositions, 5250 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2050, independent: 1760, independent conditional: 0, independent unconditional: 1760, dependent: 290, dependent conditional: 0, dependent unconditional: 290, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1216, independent: 1147, independent conditional: 0, independent unconditional: 1147, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1216, independent: 1054, independent conditional: 0, independent unconditional: 1054, dependent: 162, dependent conditional: 0, dependent unconditional: 162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 162, independent: 93, independent conditional: 0, independent unconditional: 93, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 246, independent: 99, independent conditional: 0, independent unconditional: 99, dependent: 147, dependent conditional: 0, dependent unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2050, independent: 613, independent conditional: 0, independent unconditional: 613, dependent: 221, dependent conditional: 0, dependent unconditional: 221, unknown: 1216, unknown conditional: 0, unknown unconditional: 1216] , Statistics on independence cache: Total cache size (in pairs): 132, Positive cache size: 95, Positive conditional cache size: 0, Positive unconditional cache size: 95, Negative cache size: 37, Negative conditional cache size: 0, Negative unconditional cache size: 37, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 19]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 696]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 137 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 5.3s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 468 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 468 mSDsluCounter, 78 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 39 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 829 IncrementalHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 39 mSDtfsCounter, 829 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=159occurred in iteration=0, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 43 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 665 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-14 14:49:02,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20afc4ef-5cf7-4dd3-9735-7890d4a51126/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE