./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.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_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/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_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/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_762f40f1-9d85-46fc-8060-7cebe8b86324/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 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --- 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 11:34:08,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:34:08,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:34:08,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:34:08,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:34:08,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:34:08,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:34:08,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:34:08,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:34:08,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:34:08,221 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:34:08,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:34:08,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:34:08,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:34:08,225 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:34:08,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:34:08,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:34:08,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:34:08,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:34:08,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:34:08,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:34:08,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:34:08,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:34:08,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:34:08,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:34:08,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:34:08,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:34:08,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:34:08,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:34:08,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:34:08,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:34:08,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:34:08,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:34:08,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:34:08,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:34:08,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:34:08,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:34:08,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:34:08,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:34:08,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:34:08,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:34:08,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-12-14 11:34:08,271 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:34:08,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:34:08,272 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:34:08,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:34:08,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:34:08,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:34:08,273 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:34:08,273 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:34:08,274 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:34:08,274 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:34:08,274 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:34:08,274 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:34:08,274 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:34:08,275 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:34:08,275 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:34:08,275 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:34:08,275 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:34:08,275 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:34:08,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 11:34:08,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 11:34:08,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:34:08,277 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:34:08,277 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:34:08,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:34:08,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:34:08,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:34:08,278 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 11:34:08,278 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 11:34:08,278 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 11:34:08,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:34:08,278 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 11:34:08,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:34:08,279 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:34:08,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:34:08,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:34:08,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:34:08,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:34:08,280 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:34:08,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:34:08,280 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:34:08,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:34:08,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:34:08,281 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_762f40f1-9d85-46fc-8060-7cebe8b86324/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-12-14 11:34:08,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:34:08,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:34:08,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:34:08,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:34:08,492 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:34:08,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-12-14 11:34:11,081 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:34:11,277 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:34:11,277 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-12-14 11:34:11,288 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/data/a5a0a8d98/257d48d139b245ba9778cd19490b83a1/FLAG22c671e52 [2022-12-14 11:34:11,630 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/data/a5a0a8d98/257d48d139b245ba9778cd19490b83a1 [2022-12-14 11:34:11,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:34:11,632 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:34:11,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:34:11,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:34:11,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:34:11,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:34:11" (1/1) ... [2022-12-14 11:34:11,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e8a287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:11, skipping insertion in model container [2022-12-14 11:34:11,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:34:11" (1/1) ... [2022-12-14 11:34:11,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:34:11,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:34:11,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:34:12,005 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:34:12,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:34:12,079 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:34:12,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12 WrapperNode [2022-12-14 11:34:12,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:34:12,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:34:12,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:34:12,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:34:12,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (1/1) ... [2022-12-14 11:34:12,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (1/1) ... [2022-12-14 11:34:12,118 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 80 [2022-12-14 11:34:12,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:34:12,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:34:12,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:34:12,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:34:12,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (1/1) ... [2022-12-14 11:34:12,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (1/1) ... [2022-12-14 11:34:12,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (1/1) ... [2022-12-14 11:34:12,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (1/1) ... [2022-12-14 11:34:12,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (1/1) ... [2022-12-14 11:34:12,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (1/1) ... [2022-12-14 11:34:12,141 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (1/1) ... [2022-12-14 11:34:12,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (1/1) ... [2022-12-14 11:34:12,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:34:12,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:34:12,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:34:12,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:34:12,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (1/1) ... [2022-12-14 11:34:12,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:34:12,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:34:12,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:34:12,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:34:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:34:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 11:34:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:34:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:34:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:34:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 11:34:12,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:34:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:34:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 11:34:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 11:34:12,196 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 11:34:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:34:12,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:34:12,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:34:12,197 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 11:34:12,310 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:34:12,312 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:34:12,531 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:34:12,536 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:34:12,537 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:34:12,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:34:12 BoogieIcfgContainer [2022-12-14 11:34:12,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:34:12,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:34:12,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:34:12,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:34:12,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:34:11" (1/3) ... [2022-12-14 11:34:12,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17586c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:34:12, skipping insertion in model container [2022-12-14 11:34:12,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:12" (2/3) ... [2022-12-14 11:34:12,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17586c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:34:12, skipping insertion in model container [2022-12-14 11:34:12,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:34:12" (3/3) ... [2022-12-14 11:34:12,545 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-12-14 11:34:12,559 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:34:12,559 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-12-14 11:34:12,559 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 11:34:12,607 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 11:34:12,631 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 11:34:12,642 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 124 transitions, 253 flow [2022-12-14 11:34:12,644 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 124 transitions, 253 flow [2022-12-14 11:34:12,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 124 transitions, 253 flow [2022-12-14 11:34:12,685 INFO L130 PetriNetUnfolder]: 0/123 cut-off events. [2022-12-14 11:34:12,685 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 11:34:12,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 123 events. 0/123 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-14 11:34:12,689 INFO L119 LiptonReduction]: Number of co-enabled transitions 1584 [2022-12-14 11:34:42,390 WARN L233 SmtUtils]: Spent 5.57s on a formula simplification. DAG size of input: 208 DAG size of output: 205 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:34:44,805 INFO L134 LiptonReduction]: Checked pairs total: 7716 [2022-12-14 11:34:44,806 INFO L136 LiptonReduction]: Total number of compositions: 150 [2022-12-14 11:34:44,813 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 45 transitions, 95 flow [2022-12-14 11:34:44,839 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 257 states, 180 states have (on average 2.6) internal successors, (468), 256 states have internal predecessors, (468), 0 states have call successors, (0), 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 11:34:44,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:34:44,860 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;@1518fe99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:34:44,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-12-14 11:34:44,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 257 states, 180 states have (on average 2.6) internal successors, (468), 256 states have internal predecessors, (468), 0 states have call successors, (0), 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 11:34:44,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-12-14 11:34:44,867 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:44,868 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-12-14 11:34:44,868 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:44,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:44,873 INFO L85 PathProgramCache]: Analyzing trace with hash 452, now seen corresponding path program 1 times [2022-12-14 11:34:44,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:44,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306813587] [2022-12-14 11:34:44,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:44,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:44,979 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 11:34:44,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:44,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306813587] [2022-12-14 11:34:44,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306813587] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:44,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:44,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-14 11:34:44,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215630348] [2022-12-14 11:34:44,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:44,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:34:44,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:45,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:34:45,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:34:45,004 INFO L87 Difference]: Start difference. First operand has 257 states, 180 states have (on average 2.6) internal successors, (468), 256 states have internal predecessors, (468), 0 states have call successors, (0), 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 11:34:45,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:45,065 INFO L93 Difference]: Finished difference Result 219 states and 406 transitions. [2022-12-14 11:34:45,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:34:45,067 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 11:34:45,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:45,077 INFO L225 Difference]: With dead ends: 219 [2022-12-14 11:34:45,077 INFO L226 Difference]: Without dead ends: 219 [2022-12-14 11:34:45,078 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 11:34:45,081 INFO L413 NwaCegarLoop]: 5 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, 5 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 11:34:45,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:34:45,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-12-14 11:34:45,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-12-14 11:34:45,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 166 states have (on average 2.4457831325301207) internal successors, (406), 218 states have internal predecessors, (406), 0 states have call successors, (0), 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 11:34:45,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 406 transitions. [2022-12-14 11:34:45,125 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 406 transitions. Word has length 1 [2022-12-14 11:34:45,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:45,125 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 406 transitions. [2022-12-14 11:34:45,126 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 11:34:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 406 transitions. [2022-12-14 11:34:45,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 11:34:45,126 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:45,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-12-14 11:34:45,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:34:45,127 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:45,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:45,127 INFO L85 PathProgramCache]: Analyzing trace with hash 455125, now seen corresponding path program 1 times [2022-12-14 11:34:45,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:45,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303737071] [2022-12-14 11:34:45,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:45,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:45,325 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 11:34:45,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:45,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303737071] [2022-12-14 11:34:45,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303737071] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:45,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:45,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 11:34:45,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074603485] [2022-12-14 11:34:45,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:45,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:34:45,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:45,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:34:45,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:34:45,328 INFO L87 Difference]: Start difference. First operand 219 states and 406 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 11:34:45,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:45,406 INFO L93 Difference]: Finished difference Result 206 states and 371 transitions. [2022-12-14 11:34:45,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:34:45,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-12-14 11:34:45,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:45,408 INFO L225 Difference]: With dead ends: 206 [2022-12-14 11:34:45,408 INFO L226 Difference]: Without dead ends: 206 [2022-12-14 11:34:45,408 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 11:34:45,409 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 23 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:45,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:34:45,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-12-14 11:34:45,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 190. [2022-12-14 11:34:45,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 149 states have (on average 2.3624161073825505) internal successors, (352), 189 states have internal predecessors, (352), 0 states have call successors, (0), 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 11:34:45,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 352 transitions. [2022-12-14 11:34:45,422 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 352 transitions. Word has length 3 [2022-12-14 11:34:45,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:45,423 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 352 transitions. [2022-12-14 11:34:45,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 11:34:45,423 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 352 transitions. [2022-12-14 11:34:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 11:34:45,424 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:45,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 11:34:45,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:34:45,424 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:45,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:45,425 INFO L85 PathProgramCache]: Analyzing trace with hash 14109401, now seen corresponding path program 1 times [2022-12-14 11:34:45,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:45,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826745147] [2022-12-14 11:34:45,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:45,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:45,576 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 11:34:45,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:45,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826745147] [2022-12-14 11:34:45,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826745147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:45,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:45,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:34:45,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806844278] [2022-12-14 11:34:45,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:45,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:34:45,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:45,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:34:45,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:34:45,578 INFO L87 Difference]: Start difference. First operand 190 states and 352 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-12-14 11:34:45,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:45,644 INFO L93 Difference]: Finished difference Result 178 states and 329 transitions. [2022-12-14 11:34:45,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:34:45,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 [2022-12-14 11:34:45,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:45,645 INFO L225 Difference]: With dead ends: 178 [2022-12-14 11:34:45,645 INFO L226 Difference]: Without dead ends: 178 [2022-12-14 11:34:45,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:34:45,646 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:45,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:34:45,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-12-14 11:34:45,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-12-14 11:34:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 142 states have (on average 2.316901408450704) internal successors, (329), 177 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:45,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 329 transitions. [2022-12-14 11:34:45,656 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 329 transitions. Word has length 4 [2022-12-14 11:34:45,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:45,656 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 329 transitions. [2022-12-14 11:34:45,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-12-14 11:34:45,656 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 329 transitions. [2022-12-14 11:34:45,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 11:34:45,656 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:45,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 11:34:45,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:34:45,657 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:45,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:45,657 INFO L85 PathProgramCache]: Analyzing trace with hash 14109380, now seen corresponding path program 1 times [2022-12-14 11:34:45,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:45,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62726825] [2022-12-14 11:34:45,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:45,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:45,737 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 11:34:45,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:45,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62726825] [2022-12-14 11:34:45,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62726825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:45,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:45,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:34:45,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772518950] [2022-12-14 11:34:45,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:45,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:34:45,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:45,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:34:45,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:34:45,740 INFO L87 Difference]: Start difference. First operand 178 states and 329 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-12-14 11:34:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:45,818 INFO L93 Difference]: Finished difference Result 206 states and 369 transitions. [2022-12-14 11:34:45,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:34:45,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 [2022-12-14 11:34:45,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:45,820 INFO L225 Difference]: With dead ends: 206 [2022-12-14 11:34:45,820 INFO L226 Difference]: Without dead ends: 206 [2022-12-14 11:34:45,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:34:45,821 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:45,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 5 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:34:45,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-12-14 11:34:45,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 170. [2022-12-14 11:34:45,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 140 states have (on average 2.2214285714285715) internal successors, (311), 169 states have internal predecessors, (311), 0 states have call successors, (0), 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 11:34:45,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 311 transitions. [2022-12-14 11:34:45,829 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 311 transitions. Word has length 4 [2022-12-14 11:34:45,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:45,829 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 311 transitions. [2022-12-14 11:34:45,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-12-14 11:34:45,830 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 311 transitions. [2022-12-14 11:34:45,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 11:34:45,830 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:45,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 11:34:45,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:34:45,831 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:45,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:45,831 INFO L85 PathProgramCache]: Analyzing trace with hash 14108280, now seen corresponding path program 1 times [2022-12-14 11:34:45,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:45,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701074226] [2022-12-14 11:34:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:45,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:45,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:46,006 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 11:34:46,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:46,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701074226] [2022-12-14 11:34:46,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701074226] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:46,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:46,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 11:34:46,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340993137] [2022-12-14 11:34:46,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:46,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:34:46,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:46,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:34:46,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:34:46,008 INFO L87 Difference]: Start difference. First operand 170 states and 311 transitions. Second operand has 3 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) [2022-12-14 11:34:46,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:46,066 INFO L93 Difference]: Finished difference Result 169 states and 309 transitions. [2022-12-14 11:34:46,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:34:46,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2022-12-14 11:34:46,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:46,067 INFO L225 Difference]: With dead ends: 169 [2022-12-14 11:34:46,067 INFO L226 Difference]: Without dead ends: 169 [2022-12-14 11:34:46,067 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 11:34:46,068 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 9 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:46,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 7 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:34:46,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-12-14 11:34:46,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2022-12-14 11:34:46,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 139 states have (on average 2.223021582733813) internal successors, (309), 168 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:46,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 309 transitions. [2022-12-14 11:34:46,072 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 309 transitions. Word has length 4 [2022-12-14 11:34:46,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:46,072 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 309 transitions. [2022-12-14 11:34:46,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-12-14 11:34:46,073 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 309 transitions. [2022-12-14 11:34:46,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 11:34:46,073 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:46,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 11:34:46,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:34:46,073 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:46,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:46,073 INFO L85 PathProgramCache]: Analyzing trace with hash 14108483, now seen corresponding path program 1 times [2022-12-14 11:34:46,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:46,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353264134] [2022-12-14 11:34:46,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:46,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:46,265 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 11:34:46,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:46,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353264134] [2022-12-14 11:34:46,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353264134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:46,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:46,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 11:34:46,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136863452] [2022-12-14 11:34:46,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:46,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:34:46,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:46,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:34:46,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:34:46,266 INFO L87 Difference]: Start difference. First operand 169 states and 309 transitions. Second operand has 3 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) [2022-12-14 11:34:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:46,320 INFO L93 Difference]: Finished difference Result 167 states and 305 transitions. [2022-12-14 11:34:46,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:34:46,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2022-12-14 11:34:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:46,321 INFO L225 Difference]: With dead ends: 167 [2022-12-14 11:34:46,321 INFO L226 Difference]: Without dead ends: 167 [2022-12-14 11:34:46,322 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 11:34:46,322 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:46,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:34:46,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-12-14 11:34:46,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2022-12-14 11:34:46,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 137 states have (on average 2.2262773722627736) internal successors, (305), 166 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:46,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 305 transitions. [2022-12-14 11:34:46,326 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 305 transitions. Word has length 4 [2022-12-14 11:34:46,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:46,326 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 305 transitions. [2022-12-14 11:34:46,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2022-12-14 11:34:46,326 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 305 transitions. [2022-12-14 11:34:46,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 11:34:46,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:46,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 11:34:46,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 11:34:46,326 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:46,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:46,327 INFO L85 PathProgramCache]: Analyzing trace with hash 437392262, now seen corresponding path program 1 times [2022-12-14 11:34:46,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:46,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102341331] [2022-12-14 11:34:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:46,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:46,473 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 11:34:46,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:46,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102341331] [2022-12-14 11:34:46,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102341331] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:46,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:46,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:34:46,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006875971] [2022-12-14 11:34:46,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:46,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:34:46,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:46,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:34:46,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:34:46,474 INFO L87 Difference]: Start difference. First operand 167 states and 305 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 11:34:46,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:46,536 INFO L93 Difference]: Finished difference Result 161 states and 282 transitions. [2022-12-14 11:34:46,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:34:46,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 11:34:46,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:46,537 INFO L225 Difference]: With dead ends: 161 [2022-12-14 11:34:46,537 INFO L226 Difference]: Without dead ends: 161 [2022-12-14 11:34:46,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:34:46,537 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 32 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:46,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:34:46,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-12-14 11:34:46,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 145. [2022-12-14 11:34:46,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 124 states have (on average 2.120967741935484) internal successors, (263), 144 states have internal predecessors, (263), 0 states have call successors, (0), 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 11:34:46,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 263 transitions. [2022-12-14 11:34:46,541 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 263 transitions. Word has length 5 [2022-12-14 11:34:46,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:46,541 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 263 transitions. [2022-12-14 11:34:46,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 11:34:46,541 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 263 transitions. [2022-12-14 11:34:46,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 11:34:46,541 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:46,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 11:34:46,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 11:34:46,541 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:46,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:46,542 INFO L85 PathProgramCache]: Analyzing trace with hash 437361995, now seen corresponding path program 1 times [2022-12-14 11:34:46,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:46,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300752170] [2022-12-14 11:34:46,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:46,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:46,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:46,902 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 11:34:46,902 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:46,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300752170] [2022-12-14 11:34:46,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300752170] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:46,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:46,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:34:46,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684432613] [2022-12-14 11:34:46,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:46,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:34:46,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:46,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:34:46,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:34:46,904 INFO L87 Difference]: Start difference. First operand 145 states and 263 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 11:34:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:47,006 INFO L93 Difference]: Finished difference Result 218 states and 393 transitions. [2022-12-14 11:34:47,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:34:47,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 11:34:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:47,008 INFO L225 Difference]: With dead ends: 218 [2022-12-14 11:34:47,008 INFO L226 Difference]: Without dead ends: 218 [2022-12-14 11:34:47,008 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 11:34:47,009 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:47,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 11 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:34:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-12-14 11:34:47,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 152. [2022-12-14 11:34:47,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 131 states have (on average 2.1068702290076335) internal successors, (276), 151 states have internal predecessors, (276), 0 states have call successors, (0), 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 11:34:47,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 276 transitions. [2022-12-14 11:34:47,014 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 276 transitions. Word has length 5 [2022-12-14 11:34:47,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:47,015 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 276 transitions. [2022-12-14 11:34:47,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 11:34:47,015 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 276 transitions. [2022-12-14 11:34:47,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 11:34:47,015 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:47,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 11:34:47,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 11:34:47,016 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:47,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:47,016 INFO L85 PathProgramCache]: Analyzing trace with hash 674245008, now seen corresponding path program 1 times [2022-12-14 11:34:47,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:47,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233968711] [2022-12-14 11:34:47,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:47,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:47,276 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 11:34:47,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:47,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233968711] [2022-12-14 11:34:47,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233968711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:47,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:47,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:34:47,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978237290] [2022-12-14 11:34:47,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:47,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:34:47,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:47,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:34:47,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:34:47,277 INFO L87 Difference]: Start difference. First operand 152 states and 276 transitions. Second operand has 5 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) [2022-12-14 11:34:47,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:47,398 INFO L93 Difference]: Finished difference Result 148 states and 267 transitions. [2022-12-14 11:34:47,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:34:47,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 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 [2022-12-14 11:34:47,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:47,400 INFO L225 Difference]: With dead ends: 148 [2022-12-14 11:34:47,400 INFO L226 Difference]: Without dead ends: 148 [2022-12-14 11:34:47,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:34:47,401 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:47,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 4 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:34:47,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-12-14 11:34:47,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2022-12-14 11:34:47,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 128 states have (on average 2.0859375) internal successors, (267), 147 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:34:47,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 267 transitions. [2022-12-14 11:34:47,405 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 267 transitions. Word has length 6 [2022-12-14 11:34:47,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:47,405 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 267 transitions. [2022-12-14 11:34:47,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 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) [2022-12-14 11:34:47,405 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 267 transitions. [2022-12-14 11:34:47,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 11:34:47,405 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:47,405 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:34:47,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 11:34:47,406 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:47,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:47,406 INFO L85 PathProgramCache]: Analyzing trace with hash -573273005, now seen corresponding path program 1 times [2022-12-14 11:34:47,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:47,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920013561] [2022-12-14 11:34:47,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:47,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:47,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:47,481 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 11:34:47,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:47,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920013561] [2022-12-14 11:34:47,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920013561] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:47,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:47,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:34:47,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985727296] [2022-12-14 11:34:47,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:47,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:34:47,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:47,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:34:47,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:34:47,483 INFO L87 Difference]: Start difference. First operand 148 states and 267 transitions. Second operand has 3 states, 2 states have (on average 3.5) 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 11:34:47,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:47,555 INFO L93 Difference]: Finished difference Result 136 states and 241 transitions. [2022-12-14 11:34:47,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:34:47,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) 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 11:34:47,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:47,556 INFO L225 Difference]: With dead ends: 136 [2022-12-14 11:34:47,556 INFO L226 Difference]: Without dead ends: 136 [2022-12-14 11:34:47,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:34:47,557 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:47,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 2 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:34:47,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-14 11:34:47,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-12-14 11:34:47,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 120 states have (on average 2.0083333333333333) internal successors, (241), 135 states have internal predecessors, (241), 0 states have call successors, (0), 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 11:34:47,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 241 transitions. [2022-12-14 11:34:47,562 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 241 transitions. Word has length 7 [2022-12-14 11:34:47,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:47,562 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 241 transitions. [2022-12-14 11:34:47,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) 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 11:34:47,562 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 241 transitions. [2022-12-14 11:34:47,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 11:34:47,562 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:47,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:34:47,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 11:34:47,563 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:47,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:47,563 INFO L85 PathProgramCache]: Analyzing trace with hash -573242210, now seen corresponding path program 1 times [2022-12-14 11:34:47,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:47,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235598053] [2022-12-14 11:34:47,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:47,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:47,944 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 11:34:47,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:47,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235598053] [2022-12-14 11:34:47,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235598053] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:47,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:47,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:34:47,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033078836] [2022-12-14 11:34:47,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:47,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 11:34:47,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:47,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 11:34:47,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 11:34:47,945 INFO L87 Difference]: Start difference. First operand 136 states and 241 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 11:34:48,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:48,129 INFO L93 Difference]: Finished difference Result 176 states and 305 transitions. [2022-12-14 11:34:48,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:34:48,130 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 11:34:48,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:48,131 INFO L225 Difference]: With dead ends: 176 [2022-12-14 11:34:48,131 INFO L226 Difference]: Without dead ends: 176 [2022-12-14 11:34:48,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-12-14 11:34:48,132 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 78 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:48,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 3 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:34:48,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-12-14 11:34:48,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 128. [2022-12-14 11:34:48,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 113 states have (on average 1.991150442477876) internal successors, (225), 127 states have internal predecessors, (225), 0 states have call successors, (0), 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 11:34:48,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 225 transitions. [2022-12-14 11:34:48,135 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 225 transitions. Word has length 7 [2022-12-14 11:34:48,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:48,136 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 225 transitions. [2022-12-14 11:34:48,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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 11:34:48,136 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 225 transitions. [2022-12-14 11:34:48,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 11:34:48,136 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:48,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:34:48,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 11:34:48,137 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:48,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:48,137 INFO L85 PathProgramCache]: Analyzing trace with hash -591593661, now seen corresponding path program 1 times [2022-12-14 11:34:48,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:48,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084548832] [2022-12-14 11:34:48,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:48,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:34:48,189 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 11:34:48,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:34:48,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084548832] [2022-12-14 11:34:48,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084548832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:34:48,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:34:48,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 11:34:48,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123578264] [2022-12-14 11:34:48,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:34:48,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:34:48,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:34:48,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:34:48,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:34:48,190 INFO L87 Difference]: Start difference. First operand 128 states and 225 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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 11:34:48,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:34:48,290 INFO L93 Difference]: Finished difference Result 144 states and 246 transitions. [2022-12-14 11:34:48,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:34:48,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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 11:34:48,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:34:48,291 INFO L225 Difference]: With dead ends: 144 [2022-12-14 11:34:48,291 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 11:34:48,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 11:34:48,292 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 29 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:34:48,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 11:34:48,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 11:34:48,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 128. [2022-12-14 11:34:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 115 states have (on average 1.9478260869565218) internal successors, (224), 127 states have internal predecessors, (224), 0 states have call successors, (0), 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 11:34:48,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 224 transitions. [2022-12-14 11:34:48,295 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 224 transitions. Word has length 8 [2022-12-14 11:34:48,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:34:48,295 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 224 transitions. [2022-12-14 11:34:48,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 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 11:34:48,295 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 224 transitions. [2022-12-14 11:34:48,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 11:34:48,295 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:34:48,295 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:34:48,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 11:34:48,296 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-12-14 11:34:48,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:34:48,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1479324149, now seen corresponding path program 1 times [2022-12-14 11:34:48,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:34:48,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176575413] [2022-12-14 11:34:48,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:34:48,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:34:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:34:48,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:34:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:34:48,338 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:34:48,338 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:34:48,339 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (37 of 38 remaining) [2022-12-14 11:34:48,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 38 remaining) [2022-12-14 11:34:48,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 38 remaining) [2022-12-14 11:34:48,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 38 remaining) [2022-12-14 11:34:48,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 38 remaining) [2022-12-14 11:34:48,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 38 remaining) [2022-12-14 11:34:48,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 38 remaining) [2022-12-14 11:34:48,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 38 remaining) [2022-12-14 11:34:48,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 38 remaining) [2022-12-14 11:34:48,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 38 remaining) [2022-12-14 11:34:48,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 38 remaining) [2022-12-14 11:34:48,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 38 remaining) [2022-12-14 11:34:48,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 38 remaining) [2022-12-14 11:34:48,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 38 remaining) [2022-12-14 11:34:48,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 38 remaining) [2022-12-14 11:34:48,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 38 remaining) [2022-12-14 11:34:48,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 38 remaining) [2022-12-14 11:34:48,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 38 remaining) [2022-12-14 11:34:48,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 38 remaining) [2022-12-14 11:34:48,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 38 remaining) [2022-12-14 11:34:48,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 38 remaining) [2022-12-14 11:34:48,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 38 remaining) [2022-12-14 11:34:48,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 38 remaining) [2022-12-14 11:34:48,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 38 remaining) [2022-12-14 11:34:48,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 38 remaining) [2022-12-14 11:34:48,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 11:34:48,345 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:34:48,349 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-14 11:34:48,349 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:34:48,354 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,354 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-12-14 11:34:48,354 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-12-14 11:34:48,355 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,356 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,357 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-12-14 11:34:48,358 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-12-14 11:34:48,359 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind [2022-12-14 11:34:48,360 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,361 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count [2022-12-14 11:34:48,361 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-12-14 11:34:48,361 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock [2022-12-14 11:34:48,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:34:48 BasicIcfg [2022-12-14 11:34:48,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:34:48,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:34:48,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:34:48,371 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:34:48,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:34:12" (3/4) ... [2022-12-14 11:34:48,373 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:34:48,373 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:34:48,373 INFO L158 Benchmark]: Toolchain (without parser) took 36741.37ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 89.5MB in the beginning and 56.5MB in the end (delta: 33.0MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. [2022-12-14 11:34:48,374 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 123.7MB. Free memory was 88.9MB in the beginning and 88.9MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:34:48,374 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.24ms. Allocated memory is still 123.7MB. Free memory was 89.5MB in the beginning and 51.6MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-12-14 11:34:48,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.35ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 51.6MB in the beginning and 133.7MB in the end (delta: -82.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-12-14 11:34:48,374 INFO L158 Benchmark]: Boogie Preprocessor took 24.97ms. Allocated memory is still 163.6MB. Free memory was 133.7MB in the beginning and 134.0MB in the end (delta: -345.5kB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-12-14 11:34:48,374 INFO L158 Benchmark]: RCFGBuilder took 393.64ms. Allocated memory is still 163.6MB. Free memory was 134.0MB in the beginning and 114.2MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 11:34:48,374 INFO L158 Benchmark]: TraceAbstraction took 35829.90ms. Allocated memory is still 163.6MB. Free memory was 114.2MB in the beginning and 57.5MB in the end (delta: 56.6MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2022-12-14 11:34:48,375 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 163.6MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:34:48,376 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 123.7MB. Free memory was 88.9MB in the beginning and 88.9MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.24ms. Allocated memory is still 123.7MB. Free memory was 89.5MB in the beginning and 51.6MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.35ms. Allocated memory was 123.7MB in the beginning and 163.6MB in the end (delta: 39.8MB). Free memory was 51.6MB in the beginning and 133.7MB in the end (delta: -82.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.97ms. Allocated memory is still 163.6MB. Free memory was 133.7MB in the beginning and 134.0MB in the end (delta: -345.5kB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * RCFGBuilder took 393.64ms. Allocated memory is still 163.6MB. Free memory was 134.0MB in the beginning and 114.2MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 35829.90ms. Allocated memory is still 163.6MB. Free memory was 114.2MB in the beginning and 57.5MB in the end (delta: 56.6MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 163.6MB. Free memory is still 56.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__owner - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__nusers - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__kind - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__count - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var ~B_mutex~0 : ~pthread_mutex_t~0; and expression ~B_mutex~0.__data.__lock * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.2s, 128 PlacesBefore, 49 PlacesAfterwards, 124 TransitionsBefore, 45 TransitionsAfterwards, 1584 CoEnabledTransitionPairs, 9 FixpointIterations, 102 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 150 TotalNumberOfCompositions, 7716 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3333, independent: 2903, independent conditional: 0, independent unconditional: 2903, dependent: 430, dependent conditional: 0, dependent unconditional: 430, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1135, independent: 1068, independent conditional: 0, independent unconditional: 1068, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1135, independent: 1039, independent conditional: 0, independent unconditional: 1039, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 96, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 169, independent: 31, independent conditional: 0, independent unconditional: 31, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3333, independent: 1835, independent conditional: 0, independent unconditional: 1835, dependent: 363, dependent conditional: 0, dependent unconditional: 363, unknown: 1135, unknown conditional: 0, unknown unconditional: 1135] , Statistics on independence cache: Total cache size (in pairs): 191, Positive cache size: 157, Positive conditional cache size: 0, Positive unconditional cache size: 157, Negative cache size: 34, Negative conditional cache size: 0, Negative unconditional cache size: 34, 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 - UnprovableResult [Line: 1244]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 1244. Possible FailurePath: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A; [L1231] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1232] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1245] 0 pthread_t t1; [L1246] 0 struct s *p = malloc(sizeof(struct s)); [L1247] CALL 0 init(p,9) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1247] RET 0 init(p,9) [L1248] 0 A = malloc(sizeof(struct s)) [L1249] CALL 0 init(A,3) [L1228] 0 p -> datum = x [L1229] 0 p -> next = ((void *)0) [L1249] RET 0 init(A,3) [L1250] 0 A->next = p [L1251] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={5:0}, A_mutex={1:0}, B_mutex=0, B_mutex=0, B_mutex=0, B_mutex=0, B_mutex=0, p={2:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={7:0}] [L1253] EXPR 0 A->next [L1253] 0 p = A->next [L1254] 0 p->datum [L1256] 0 return 0; [L1256] 0 return 0; - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 160 locations, 38 error locations. Started 1 CEGAR loops. OverallTime: 35.7s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 32.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 291 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 291 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 723 IncrementalHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 36 mSDtfsCounter, 723 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=0, InterpolantAutomatonStates: 43, 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, 194 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 651 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 11:34:48,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/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_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/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 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c --- 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 11:34:49,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:34:49,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:34:49,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:34:49,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:34:49,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:34:49,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:34:49,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:34:49,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:34:49,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:34:49,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:34:49,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:34:49,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:34:49,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:34:49,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:34:49,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:34:49,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:34:49,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:34:49,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:34:49,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:34:49,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:34:49,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:34:49,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:34:49,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:34:49,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:34:49,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:34:49,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:34:49,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:34:49,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:34:49,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:34:49,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:34:49,955 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:34:49,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:34:49,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:34:49,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:34:49,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:34:49,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:34:49,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:34:49,963 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:34:49,964 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:34:49,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:34:49,966 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-12-14 11:34:49,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:34:49,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:34:49,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:34:49,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:34:49,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:34:49,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:34:49,984 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:34:49,984 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:34:49,984 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:34:49,984 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:34:49,984 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:34:49,984 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:34:49,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 11:34:49,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 11:34:49,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:34:49,986 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:34:49,986 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:34:49,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:34:49,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:34:49,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:34:49,987 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 11:34:49,987 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 11:34:49,987 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-14 11:34:49,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:34:49,987 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 11:34:49,988 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 11:34:49,988 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 11:34:49,988 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:34:49,988 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:34:49,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:34:49,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 11:34:49,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:34:49,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:34:49,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:34:49,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:34:49,989 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 11:34:49,989 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 11:34:49,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:34:49,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 11:34:49,990 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-12-14 11:34:50,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:34:50,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:34:50,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:34:50,240 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:34:50,240 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:34:50,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-12-14 11:34:52,796 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:34:53,026 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:34:53,027 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-12-14 11:34:53,041 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/data/f9459c824/ad0a12b7f9ae45ec92d5678b2c0467f5/FLAGc3e301f9f [2022-12-14 11:34:53,053 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/data/f9459c824/ad0a12b7f9ae45ec92d5678b2c0467f5 [2022-12-14 11:34:53,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:34:53,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:34:53,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:34:53,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:34:53,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:34:53,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2ce1da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53, skipping insertion in model container [2022-12-14 11:34:53,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:34:53,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:34:53,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:34:53,661 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:34:53,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:34:53,748 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:34:53,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53 WrapperNode [2022-12-14 11:34:53,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:34:53,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:34:53,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:34:53,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:34:53,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,784 INFO L138 Inliner]: procedures = 369, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 81 [2022-12-14 11:34:53,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:34:53,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:34:53,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:34:53,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:34:53,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,802 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:34:53,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:34:53,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:34:53,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:34:53,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (1/1) ... [2022-12-14 11:34:53,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:34:53,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:34:53,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:34:53,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_762f40f1-9d85-46fc-8060-7cebe8b86324/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:34:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 11:34:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:34:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 11:34:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:34:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 11:34:53,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 11:34:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-14 11:34:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:34:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:34:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 11:34:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-14 11:34:53,866 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-14 11:34:53,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:34:53,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:34:53,867 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-14 11:34:53,998 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:34:54,000 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:34:54,326 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:34:54,331 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:34:54,331 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:34:54,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:34:54 BoogieIcfgContainer [2022-12-14 11:34:54,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:34:54,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:34:54,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:34:54,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:34:54,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:34:53" (1/3) ... [2022-12-14 11:34:54,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b4e56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:34:54, skipping insertion in model container [2022-12-14 11:34:54,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:34:53" (2/3) ... [2022-12-14 11:34:54,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b4e56c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:34:54, skipping insertion in model container [2022-12-14 11:34:54,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:34:54" (3/3) ... [2022-12-14 11:34:54,339 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-12-14 11:34:54,352 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:34:54,352 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-12-14 11:34:54,353 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-14 11:34:54,406 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-14 11:34:54,429 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-14 11:34:54,440 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 125 transitions, 255 flow [2022-12-14 11:34:54,442 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 125 transitions, 255 flow [2022-12-14 11:34:54,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 125 transitions, 255 flow [2022-12-14 11:34:54,477 INFO L130 PetriNetUnfolder]: 0/124 cut-off events. [2022-12-14 11:34:54,477 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-14 11:34:54,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 124 events. 0/124 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 142 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-14 11:34:54,481 INFO L119 LiptonReduction]: Number of co-enabled transitions 1584 [2022-12-14 11:35:31,109 WARN L233 SmtUtils]: Spent 14.87s on a formula simplification. DAG size of input: 99 DAG size of output: 98 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:35:36,909 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 94 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:35:50,579 WARN L233 SmtUtils]: Spent 13.67s on a formula simplification. DAG size of input: 99 DAG size of output: 98 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:35:57,179 WARN L233 SmtUtils]: Spent 6.60s on a formula simplification that was a NOOP. DAG size: 94 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:36:39,188 WARN L233 SmtUtils]: Spent 19.43s on a formula simplification. DAG size of input: 124 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:36:46,753 WARN L233 SmtUtils]: Spent 7.56s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:37:12,631 WARN L233 SmtUtils]: Spent 25.88s on a formula simplification. DAG size of input: 124 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:37:21,446 WARN L233 SmtUtils]: Spent 8.81s on a formula simplification that was a NOOP. DAG size: 113 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:39:37,308 WARN L233 SmtUtils]: Spent 2.07m on a formula simplification. DAG size of input: 174 DAG size of output: 165 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:40:32,870 WARN L233 SmtUtils]: Spent 55.56s on a formula simplification that was a NOOP. DAG size: 155 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:42:23,123 WARN L233 SmtUtils]: Spent 1.84m on a formula simplification. DAG size of input: 174 DAG size of output: 165 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:43:21,779 WARN L233 SmtUtils]: Spent 58.65s on a formula simplification that was a NOOP. DAG size: 155 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:44:14,069 WARN L233 SmtUtils]: Spent 52.29s on a formula simplification. DAG size of input: 154 DAG size of output: 146 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:44:36,305 WARN L233 SmtUtils]: Spent 22.23s on a formula simplification that was a NOOP. DAG size: 136 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:45:26,680 WARN L233 SmtUtils]: Spent 50.37s on a formula simplification. DAG size of input: 154 DAG size of output: 150 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:45:54,589 WARN L233 SmtUtils]: Spent 27.91s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:46:42,532 WARN L233 SmtUtils]: Spent 47.94s on a formula simplification. DAG size of input: 159 DAG size of output: 150 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:47:03,394 WARN L233 SmtUtils]: Spent 20.86s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:47:56,189 WARN L233 SmtUtils]: Spent 52.79s on a formula simplification. DAG size of input: 158 DAG size of output: 150 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-14 11:48:19,022 WARN L233 SmtUtils]: Spent 22.83s on a formula simplification that was a NOOP. DAG size: 140 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)