./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF --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 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:40:50,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:40:50,114 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:40:50,167 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:40:50,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:40:50,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:40:50,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:40:50,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:40:50,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:40:50,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:40:50,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:40:50,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:40:50,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:40:50,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:40:50,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:40:50,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:40:50,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:40:50,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:40:50,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:40:50,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:40:50,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:40:50,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:40:50,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:40:50,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:40:50,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:40:50,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:40:50,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:40:50,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:40:50,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:40:50,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:40:50,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:40:50,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:40:50,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:40:50,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:40:50,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:40:50,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:40:50,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:40:50,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:40:50,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:40:50,264 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:40:50,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:40:50,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-13 01:40:50,337 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:40:50,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:40:50,342 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:40:50,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:40:50,351 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:40:50,351 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:40:50,352 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:40:50,352 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:40:50,352 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:40:50,352 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:40:50,354 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:40:50,355 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:40:50,355 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:40:50,355 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:40:50,356 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:40:50,356 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:40:50,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 01:40:50,358 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 01:40:50,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:40:50,360 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 01:40:50,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 01:40:50,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:40:50,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 01:40:50,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:40:50,362 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 01:40:50,362 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 01:40:50,362 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 01:40:50,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:40:50,363 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:40:50,363 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 01:40:50,363 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:40:50,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:40:50,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:40:50,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:40:50,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:40:50,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:40:50,365 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:40:50,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:40:50,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:40:50,365 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:40:50,366 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 [2021-11-13 01:40:50,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:40:50,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:40:50,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:40:50,714 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:40:50,715 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:40:50,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/locks/test_locks_5.c [2021-11-13 01:40:50,795 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/data/e33436b6c/07eded169ea0490eb29280eadbc7b0a3/FLAGc63600507 [2021-11-13 01:40:51,367 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:40:51,368 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/sv-benchmarks/c/locks/test_locks_5.c [2021-11-13 01:40:51,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/data/e33436b6c/07eded169ea0490eb29280eadbc7b0a3/FLAGc63600507 [2021-11-13 01:40:51,690 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/data/e33436b6c/07eded169ea0490eb29280eadbc7b0a3 [2021-11-13 01:40:51,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:40:51,694 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:40:51,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:51,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:40:51,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:40:51,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:51,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d97e9da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51, skipping insertion in model container [2021-11-13 01:40:51,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:51,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:40:51,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:40:51,907 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/sv-benchmarks/c/locks/test_locks_5.c[2207,2220] [2021-11-13 01:40:51,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:51,943 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:40:51,974 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/sv-benchmarks/c/locks/test_locks_5.c[2207,2220] [2021-11-13 01:40:51,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:40:51,991 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:40:51,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51 WrapperNode [2021-11-13 01:40:51,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:40:51,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:51,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:40:51,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:40:52,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:52,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:52,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:40:52,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:40:52,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:40:52,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:40:52,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:52,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:52,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:52,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:52,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:52,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:52,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:52,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:40:52,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:40:52,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:40:52,068 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:40:52,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51" (1/1) ... [2021-11-13 01:40:52,091 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:40:52,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:40:52,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:40:52,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:40:52,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:40:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:40:52,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 01:40:52,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:40:52,632 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:40:52,633 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-13 01:40:52,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:52 BoogieIcfgContainer [2021-11-13 01:40:52,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:40:52,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:40:52,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:40:52,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:40:52,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:40:51" (1/3) ... [2021-11-13 01:40:52,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66261652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:52, skipping insertion in model container [2021-11-13 01:40:52,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:40:51" (2/3) ... [2021-11-13 01:40:52,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66261652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:40:52, skipping insertion in model container [2021-11-13 01:40:52,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:52" (3/3) ... [2021-11-13 01:40:52,661 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_5.c [2021-11-13 01:40:52,666 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:40:52,667 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-13 01:40:52,738 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:40:52,746 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-13 01:40:52,747 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-13 01:40:52,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 16 states have (on average 1.875) internal successors, (30), 18 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:52,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 01:40:52,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:52,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 01:40:52,785 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-13 01:40:52,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:52,801 INFO L85 PathProgramCache]: Analyzing trace with hash 4405706, now seen corresponding path program 1 times [2021-11-13 01:40:52,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:52,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027075855] [2021-11-13 01:40:52,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:52,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:53,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:53,048 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:53,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027075855] [2021-11-13 01:40:53,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027075855] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:53,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:53,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 01:40:53,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694382542] [2021-11-13 01:40:53,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:53,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 01:40:53,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:53,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 01:40:53,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:40:53,093 INFO L87 Difference]: Start difference. First operand has 19 states, 16 states have (on average 1.875) internal successors, (30), 18 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:53,121 INFO L93 Difference]: Finished difference Result 19 states and 28 transitions. [2021-11-13 01:40:53,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 01:40:53,124 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-13 01:40:53,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:53,134 INFO L225 Difference]: With dead ends: 19 [2021-11-13 01:40:53,134 INFO L226 Difference]: Without dead ends: 18 [2021-11-13 01:40:53,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 01:40:53,141 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.61ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:53,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 3 Unknown, 0 Unchecked, 0.78ms Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 12.61ms Time] [2021-11-13 01:40:53,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-13 01:40:53,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-11-13 01:40:53,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 16 states have (on average 1.6875) internal successors, (27), 17 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2021-11-13 01:40:53,175 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 27 transitions. Word has length 4 [2021-11-13 01:40:53,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:53,175 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 27 transitions. [2021-11-13 01:40:53,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,176 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2021-11-13 01:40:53,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 01:40:53,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:53,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 01:40:53,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 01:40:53,178 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-13 01:40:53,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:53,179 INFO L85 PathProgramCache]: Analyzing trace with hash 133331544, now seen corresponding path program 1 times [2021-11-13 01:40:53,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:53,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155394574] [2021-11-13 01:40:53,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:53,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:53,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:53,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:53,231 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:53,231 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155394574] [2021-11-13 01:40:53,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155394574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:53,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:53,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-13 01:40:53,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145246626] [2021-11-13 01:40:53,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:53,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:40:53,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:53,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:40:53,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:40:53,235 INFO L87 Difference]: Start difference. First operand 18 states and 27 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:53,247 INFO L93 Difference]: Finished difference Result 17 states and 26 transitions. [2021-11-13 01:40:53,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:40:53,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 01:40:53,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:53,249 INFO L225 Difference]: With dead ends: 17 [2021-11-13 01:40:53,249 INFO L226 Difference]: Without dead ends: 15 [2021-11-13 01:40:53,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:40:53,251 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.58ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:53,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 24 Invalid, 2 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.58ms Time] [2021-11-13 01:40:53,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-13 01:40:53,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-13 01:40:53,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 24 transitions. [2021-11-13 01:40:53,256 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 24 transitions. Word has length 5 [2021-11-13 01:40:53,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:53,257 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 24 transitions. [2021-11-13 01:40:53,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,257 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2021-11-13 01:40:53,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 01:40:53,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:53,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 01:40:53,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 01:40:53,259 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-13 01:40:53,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:53,260 INFO L85 PathProgramCache]: Analyzing trace with hash -158438138, now seen corresponding path program 1 times [2021-11-13 01:40:53,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:53,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012809980] [2021-11-13 01:40:53,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:53,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:53,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:53,367 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:53,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012809980] [2021-11-13 01:40:53,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012809980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:53,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:53,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 01:40:53,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097657053] [2021-11-13 01:40:53,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:53,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:40:53,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:53,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:40:53,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:53,375 INFO L87 Difference]: Start difference. First operand 15 states and 24 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:53,412 INFO L93 Difference]: Finished difference Result 27 states and 42 transitions. [2021-11-13 01:40:53,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:40:53,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-13 01:40:53,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:53,414 INFO L225 Difference]: With dead ends: 27 [2021-11-13 01:40:53,414 INFO L226 Difference]: Without dead ends: 27 [2021-11-13 01:40:53,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:53,416 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 20 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.40ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.46ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:53,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 56 Invalid, 13 Unknown, 0 Unchecked, 1.40ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 28.46ms Time] [2021-11-13 01:40:53,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-13 01:40:53,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 15. [2021-11-13 01:40:53,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 23 transitions. [2021-11-13 01:40:53,422 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 23 transitions. Word has length 6 [2021-11-13 01:40:53,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:53,422 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 23 transitions. [2021-11-13 01:40:53,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,423 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2021-11-13 01:40:53,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 01:40:53,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:53,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:53,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 01:40:53,424 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-13 01:40:53,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:53,425 INFO L85 PathProgramCache]: Analyzing trace with hash -616400014, now seen corresponding path program 1 times [2021-11-13 01:40:53,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:53,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390807598] [2021-11-13 01:40:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:53,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:53,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:53,490 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:53,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390807598] [2021-11-13 01:40:53,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390807598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:53,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:53,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 01:40:53,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884321550] [2021-11-13 01:40:53,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:53,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:40:53,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:53,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:40:53,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:53,496 INFO L87 Difference]: Start difference. First operand 15 states and 23 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:53,540 INFO L93 Difference]: Finished difference Result 25 states and 37 transitions. [2021-11-13 01:40:53,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:40:53,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-13 01:40:53,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:53,542 INFO L225 Difference]: With dead ends: 25 [2021-11-13 01:40:53,543 INFO L226 Difference]: Without dead ends: 25 [2021-11-13 01:40:53,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:53,546 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.47ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.06ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:53,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 50 Invalid, 13 Unknown, 0 Unchecked, 1.47ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 37.06ms Time] [2021-11-13 01:40:53,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-11-13 01:40:53,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 15. [2021-11-13 01:40:53,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2021-11-13 01:40:53,559 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 22 transitions. Word has length 7 [2021-11-13 01:40:53,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:53,563 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-11-13 01:40:53,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,563 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 22 transitions. [2021-11-13 01:40:53,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-13 01:40:53,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:53,564 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:53,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 01:40:53,565 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-13 01:40:53,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:53,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1928315941, now seen corresponding path program 1 times [2021-11-13 01:40:53,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:53,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494661491] [2021-11-13 01:40:53,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:53,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:53,663 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:53,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494661491] [2021-11-13 01:40:53,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494661491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:53,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:53,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 01:40:53,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995418456] [2021-11-13 01:40:53,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:53,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:40:53,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:53,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:40:53,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:53,670 INFO L87 Difference]: Start difference. First operand 15 states and 22 transitions. Second operand has 4 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) [2021-11-13 01:40:53,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:53,706 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2021-11-13 01:40:53,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:40:53,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 [2021-11-13 01:40:53,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:53,708 INFO L225 Difference]: With dead ends: 23 [2021-11-13 01:40:53,708 INFO L226 Difference]: Without dead ends: 23 [2021-11-13 01:40:53,709 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:53,711 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.02ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.41ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:53,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 44 Invalid, 13 Unknown, 0 Unchecked, 1.02ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 30.41ms Time] [2021-11-13 01:40:53,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-13 01:40:53,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2021-11-13 01:40:53,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2021-11-13 01:40:53,724 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 21 transitions. Word has length 8 [2021-11-13 01:40:53,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:53,725 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 21 transitions. [2021-11-13 01:40:53,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2021-11-13 01:40:53,725 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 21 transitions. [2021-11-13 01:40:53,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 01:40:53,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:53,726 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:53,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 01:40:53,727 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-13 01:40:53,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:53,729 INFO L85 PathProgramCache]: Analyzing trace with hash 351963623, now seen corresponding path program 1 times [2021-11-13 01:40:53,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:53,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600921282] [2021-11-13 01:40:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:53,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:53,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:53,831 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:53,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600921282] [2021-11-13 01:40:53,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600921282] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:53,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:53,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 01:40:53,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065089681] [2021-11-13 01:40:53,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:53,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:40:53,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:53,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:40:53,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:53,835 INFO L87 Difference]: Start difference. First operand 15 states and 21 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:53,867 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2021-11-13 01:40:53,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:40:53,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-13 01:40:53,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:53,870 INFO L225 Difference]: With dead ends: 21 [2021-11-13 01:40:53,870 INFO L226 Difference]: Without dead ends: 21 [2021-11-13 01:40:53,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:53,874 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.82ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:53,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 1.52ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 17.82ms Time] [2021-11-13 01:40:53,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-13 01:40:53,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2021-11-13 01:40:53,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2021-11-13 01:40:53,881 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 20 transitions. Word has length 9 [2021-11-13 01:40:53,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:53,881 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 20 transitions. [2021-11-13 01:40:53,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,882 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2021-11-13 01:40:53,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-13 01:40:53,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:40:53,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:53,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 01:40:53,883 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2021-11-13 01:40:53,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:40:53,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1973813584, now seen corresponding path program 1 times [2021-11-13 01:40:53,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 01:40:53,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414352301] [2021-11-13 01:40:53,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:40:53,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 01:40:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:40:53,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 01:40:53,979 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 01:40:53,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414352301] [2021-11-13 01:40:53,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414352301] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 01:40:53,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:40:53,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 01:40:53,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154508038] [2021-11-13 01:40:53,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:40:53,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:40:53,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 01:40:53,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:40:53,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:53,982 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:40:53,998 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2021-11-13 01:40:53,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:40:53,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-13 01:40:53,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:40:53,999 INFO L225 Difference]: With dead ends: 15 [2021-11-13 01:40:53,999 INFO L226 Difference]: Without dead ends: 0 [2021-11-13 01:40:53,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:40:54,000 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 11 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.30ms IncrementalHoareTripleChecker+Time [2021-11-13 01:40:54,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 29 Invalid, 13 Unknown, 0 Unchecked, 0.58ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 13.30ms Time] [2021-11-13 01:40:54,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-13 01:40:54,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-13 01:40:54,002 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) [2021-11-13 01:40:54,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-13 01:40:54,002 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-11-13 01:40:54,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:40:54,002 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-13 01:40:54,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 01:40:54,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-13 01:40:54,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 01:40:54,006 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2021-11-13 01:40:54,006 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2021-11-13 01:40:54,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 01:40:54,010 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:40:54,012 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 01:40:54,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:40:54 BoogieIcfgContainer [2021-11-13 01:40:54,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 01:40:54,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 01:40:54,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 01:40:54,016 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 01:40:54,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:40:52" (3/4) ... [2021-11-13 01:40:54,020 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 01:40:54,032 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-11-13 01:40:54,032 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-13 01:40:54,033 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 01:40:54,033 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 01:40:54,100 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-13 01:40:54,100 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 01:40:54,101 INFO L158 Benchmark]: Toolchain (without parser) took 2406.92ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.7MB in the beginning and 68.2MB in the end (delta: -18.5MB). Peak memory consumption was 66.2kB. Max. memory is 16.1GB. [2021-11-13 01:40:54,102 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory was 65.6MB in the beginning and 65.6MB in the end (delta: 39.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:54,102 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.75ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.5MB in the beginning and 81.4MB in the end (delta: -31.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-11-13 01:40:54,103 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.31ms. Allocated memory is still 104.9MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:40:54,103 INFO L158 Benchmark]: Boogie Preprocessor took 30.23ms. Allocated memory is still 104.9MB. Free memory was 79.7MB in the beginning and 78.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:54,104 INFO L158 Benchmark]: RCFGBuilder took 580.17ms. Allocated memory is still 104.9MB. Free memory was 78.6MB in the beginning and 66.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-13 01:40:54,104 INFO L158 Benchmark]: TraceAbstraction took 1365.71ms. Allocated memory is still 104.9MB. Free memory was 65.8MB in the beginning and 71.3MB in the end (delta: -5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:40:54,104 INFO L158 Benchmark]: Witness Printer took 84.05ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 68.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 01:40:54,107 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 86.0MB. Free memory was 65.6MB in the beginning and 65.6MB in the end (delta: 39.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.75ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 49.5MB in the beginning and 81.4MB in the end (delta: -31.9MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.31ms. Allocated memory is still 104.9MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.23ms. Allocated memory is still 104.9MB. Free memory was 79.7MB in the beginning and 78.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 580.17ms. Allocated memory is still 104.9MB. Free memory was 78.6MB in the beginning and 66.2MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1365.71ms. Allocated memory is still 104.9MB. Free memory was 65.8MB in the beginning and 71.3MB in the end (delta: -5.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 84.05ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 68.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 93]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 101 SdHoareTripleChecker+Valid, 146.25ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 101 mSDsluCounter, 266 SdHoareTripleChecker+Invalid, 103.16ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 133 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 133 mSDtfsCounter, 70 mSolverCounterSat, 7.50ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 36 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-13 01:40:54,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10657edd-6978-4360-83d9-839331bd1e89/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE