./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/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_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba --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-b5237d8 [2022-11-22 01:19:33,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:19:33,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:19:33,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:19:33,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:19:33,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:19:33,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:19:33,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:19:33,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:19:33,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:19:33,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:19:33,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:19:33,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:19:33,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:19:33,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:19:33,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:19:33,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:19:33,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:19:33,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:19:33,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:19:33,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:19:33,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:19:33,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:19:33,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:19:33,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:19:33,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:19:33,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:19:33,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:19:33,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:19:33,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:19:33,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:19:33,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:19:33,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:19:33,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:19:33,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:19:33,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:19:33,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:19:33,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:19:33,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:19:33,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:19:33,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:19:33,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2022-11-22 01:19:33,291 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:19:33,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:19:33,292 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:19:33,292 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:19:33,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:19:33,293 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:19:33,293 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:19:33,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:19:33,294 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:19:33,294 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:19:33,295 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:19:33,295 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:19:33,295 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:19:33,295 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:19:33,296 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:19:33,296 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:19:33,296 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:19:33,296 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:19:33,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:19:33,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:19:33,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:19:33,298 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:19:33,298 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:19:33,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:19:33,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:19:33,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:19:33,299 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:19:33,300 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:19:33,300 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:19:33,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:19:33,301 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:19:33,301 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:19:33,301 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:19:33,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:19:33,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:19:33,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:19:33,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:19:33,303 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:19:33,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:19:33,303 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:19:33,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:19:33,304 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:19:33,304 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_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-11-22 01:19:33,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:19:33,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:19:33,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:19:33,651 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:19:33,652 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:19:33,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-22 01:19:36,783 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:19:37,096 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:19:37,097 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-22 01:19:37,116 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/data/a3d5ae875/dbf0647ac9dc42e3937bc5e45b52b7f8/FLAGf7c38271f [2022-11-22 01:19:37,146 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/data/a3d5ae875/dbf0647ac9dc42e3937bc5e45b52b7f8 [2022-11-22 01:19:37,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:19:37,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:19:37,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:19:37,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:19:37,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:19:37,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:19:37" (1/1) ... [2022-11-22 01:19:37,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa4a183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:37, skipping insertion in model container [2022-11-22 01:19:37,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:19:37" (1/1) ... [2022-11-22 01:19:37,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:19:37,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:19:37,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:19:37,975 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:19:38,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:19:38,160 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:19:38,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38 WrapperNode [2022-11-22 01:19:38,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:19:38,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:19:38,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:19:38,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:19:38,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (1/1) ... [2022-11-22 01:19:38,204 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (1/1) ... [2022-11-22 01:19:38,249 INFO L138 Inliner]: procedures = 368, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 80 [2022-11-22 01:19:38,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:19:38,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:19:38,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:19:38,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:19:38,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (1/1) ... [2022-11-22 01:19:38,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (1/1) ... [2022-11-22 01:19:38,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (1/1) ... [2022-11-22 01:19:38,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (1/1) ... [2022-11-22 01:19:38,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (1/1) ... [2022-11-22 01:19:38,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (1/1) ... [2022-11-22 01:19:38,309 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (1/1) ... [2022-11-22 01:19:38,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (1/1) ... [2022-11-22 01:19:38,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:19:38,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:19:38,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:19:38,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:19:38,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (1/1) ... [2022-11-22 01:19:38,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:19:38,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:19:38,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:19:38,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:19:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:19:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:19:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:19:38,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:19:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:19:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 01:19:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:19:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:19:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:19:38,412 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 01:19:38,412 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 01:19:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:19:38,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:19:38,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:19:38,414 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:19:38,620 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:19:38,622 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:19:38,989 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:19:38,997 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:19:38,998 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:19:39,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:19:39 BoogieIcfgContainer [2022-11-22 01:19:39,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:19:39,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:19:39,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:19:39,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:19:39,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:19:37" (1/3) ... [2022-11-22 01:19:39,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350df6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:19:39, skipping insertion in model container [2022-11-22 01:19:39,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:19:38" (2/3) ... [2022-11-22 01:19:39,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350df6e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:19:39, skipping insertion in model container [2022-11-22 01:19:39,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:19:39" (3/3) ... [2022-11-22 01:19:39,016 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-11-22 01:19:39,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:19:39,037 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-11-22 01:19:39,037 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:19:39,136 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 01:19:39,172 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:19:39,188 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 124 transitions, 253 flow [2022-11-22 01:19:39,191 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 124 transitions, 253 flow [2022-11-22 01:19:39,193 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 128 places, 124 transitions, 253 flow [2022-11-22 01:19:39,289 INFO L130 PetriNetUnfolder]: 0/123 cut-off events. [2022-11-22 01:19:39,292 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 01:19:39,295 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. [2022-11-22 01:19:39,298 INFO L119 LiptonReduction]: Number of co-enabled transitions 1584 [2022-11-22 01:19:56,758 WARN L233 SmtUtils]: Spent 6.83s on a formula simplification. DAG size of input: 189 DAG size of output: 180 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:20:11,004 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 210 DAG size of output: 208 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:20:18,302 INFO L134 LiptonReduction]: Checked pairs total: 6355 [2022-11-22 01:20:18,303 INFO L136 LiptonReduction]: Total number of compositions: 151 [2022-11-22 01:20:18,310 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 49 places, 45 transitions, 95 flow [2022-11-22 01:20:18,339 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) [2022-11-22 01:20:18,358 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:20:18,371 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;@3111458c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:20:18,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-22 01:20:18,376 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) [2022-11-22 01:20:18,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-22 01:20:18,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:18,382 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-22 01:20:18,382 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:18,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:18,391 INFO L85 PathProgramCache]: Analyzing trace with hash 455, now seen corresponding path program 1 times [2022-11-22 01:20:18,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:18,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013243242] [2022-11-22 01:20:18,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:18,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:18,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:18,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013243242] [2022-11-22 01:20:18,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013243242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:18,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:18,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-22 01:20:18,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225238902] [2022-11-22 01:20:18,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:18,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:20:18,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:18,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:20:18,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:20:18,582 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) [2022-11-22 01:20:18,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:18,709 INFO L93 Difference]: Finished difference Result 219 states and 406 transitions. [2022-11-22 01:20:18,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:20:18,712 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 [2022-11-22 01:20:18,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:18,723 INFO L225 Difference]: With dead ends: 219 [2022-11-22 01:20:18,723 INFO L226 Difference]: Without dead ends: 219 [2022-11-22 01:20:18,724 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 [2022-11-22 01:20:18,730 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:18,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:20:18,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-11-22 01:20:18,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-11-22 01:20:18,795 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) [2022-11-22 01:20:18,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 406 transitions. [2022-11-22 01:20:18,800 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 406 transitions. Word has length 1 [2022-11-22 01:20:18,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:18,801 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 406 transitions. [2022-11-22 01:20:18,801 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) [2022-11-22 01:20:18,801 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 406 transitions. [2022-11-22 01:20:18,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 01:20:18,802 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:18,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 01:20:18,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:20:18,803 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)] === [2022-11-22 01:20:18,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:18,803 INFO L85 PathProgramCache]: Analyzing trace with hash 451277, now seen corresponding path program 1 times [2022-11-22 01:20:18,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:18,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013125851] [2022-11-22 01:20:18,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:18,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:19,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:19,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013125851] [2022-11-22 01:20:19,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013125851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:19,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:19,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:20:19,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015794949] [2022-11-22 01:20:19,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:19,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:19,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:19,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:19,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:19,120 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) [2022-11-22 01:20:19,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:19,252 INFO L93 Difference]: Finished difference Result 206 states and 371 transitions. [2022-11-22 01:20:19,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:20:19,253 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 [2022-11-22 01:20:19,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:19,255 INFO L225 Difference]: With dead ends: 206 [2022-11-22 01:20:19,255 INFO L226 Difference]: Without dead ends: 206 [2022-11-22 01:20:19,255 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 [2022-11-22 01:20:19,256 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 [2022-11-22 01:20:19,257 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] [2022-11-22 01:20:19,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-22 01:20:19,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 190. [2022-11-22 01:20:19,267 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) [2022-11-22 01:20:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 352 transitions. [2022-11-22 01:20:19,269 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 352 transitions. Word has length 3 [2022-11-22 01:20:19,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:19,270 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 352 transitions. [2022-11-22 01:20:19,270 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) [2022-11-22 01:20:19,270 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 352 transitions. [2022-11-22 01:20:19,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:20:19,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:19,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:20:19,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:20:19,271 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)] === [2022-11-22 01:20:19,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:19,272 INFO L85 PathProgramCache]: Analyzing trace with hash 13989837, now seen corresponding path program 1 times [2022-11-22 01:20:19,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:19,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040707435] [2022-11-22 01:20:19,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:19,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:19,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:19,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040707435] [2022-11-22 01:20:19,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040707435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:19,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:19,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:20:19,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491264245] [2022-11-22 01:20:19,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:19,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:19,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:19,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:19,536 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) [2022-11-22 01:20:19,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:19,671 INFO L93 Difference]: Finished difference Result 178 states and 329 transitions. [2022-11-22 01:20:19,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:20:19,671 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 [2022-11-22 01:20:19,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:19,673 INFO L225 Difference]: With dead ends: 178 [2022-11-22 01:20:19,673 INFO L226 Difference]: Without dead ends: 178 [2022-11-22 01:20:19,673 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 [2022-11-22 01:20:19,674 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 25 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:19,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 4 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:20:19,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-11-22 01:20:19,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-11-22 01:20:19,693 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) [2022-11-22 01:20:19,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 329 transitions. [2022-11-22 01:20:19,694 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 329 transitions. Word has length 4 [2022-11-22 01:20:19,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:19,695 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 329 transitions. [2022-11-22 01:20:19,695 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) [2022-11-22 01:20:19,695 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 329 transitions. [2022-11-22 01:20:19,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:20:19,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:19,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:20:19,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:20:19,697 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)] === [2022-11-22 01:20:19,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:19,700 INFO L85 PathProgramCache]: Analyzing trace with hash 13989828, now seen corresponding path program 1 times [2022-11-22 01:20:19,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:19,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221921131] [2022-11-22 01:20:19,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:19,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:19,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:19,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221921131] [2022-11-22 01:20:19,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221921131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:19,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:19,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:20:19,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533978720] [2022-11-22 01:20:19,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:19,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:19,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:19,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:19,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:19,877 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) [2022-11-22 01:20:20,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:20,074 INFO L93 Difference]: Finished difference Result 218 states and 392 transitions. [2022-11-22 01:20:20,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:20:20,075 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 [2022-11-22 01:20:20,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:20,076 INFO L225 Difference]: With dead ends: 218 [2022-11-22 01:20:20,077 INFO L226 Difference]: Without dead ends: 218 [2022-11-22 01:20:20,077 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 [2022-11-22 01:20:20,078 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 22 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:20,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 4 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:20:20,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-22 01:20:20,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 174. [2022-11-22 01:20:20,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 141 states have (on average 2.269503546099291) internal successors, (320), 173 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:20,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 320 transitions. [2022-11-22 01:20:20,094 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 320 transitions. Word has length 4 [2022-11-22 01:20:20,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:20,094 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 320 transitions. [2022-11-22 01:20:20,094 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) [2022-11-22 01:20:20,095 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 320 transitions. [2022-11-22 01:20:20,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:20:20,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:20,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:20:20,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:20:20,096 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:20,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:20,097 INFO L85 PathProgramCache]: Analyzing trace with hash 13989384, now seen corresponding path program 1 times [2022-11-22 01:20:20,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:20,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832869078] [2022-11-22 01:20:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:20,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:20,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:20,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:20,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832869078] [2022-11-22 01:20:20,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832869078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:20,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:20,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:20:20,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078264795] [2022-11-22 01:20:20,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:20,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:20,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:20,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:20,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:20,632 INFO L87 Difference]: Start difference. First operand 174 states and 320 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) [2022-11-22 01:20:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:20,777 INFO L93 Difference]: Finished difference Result 172 states and 316 transitions. [2022-11-22 01:20:20,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:20:20,778 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 [2022-11-22 01:20:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:20,779 INFO L225 Difference]: With dead ends: 172 [2022-11-22 01:20:20,779 INFO L226 Difference]: Without dead ends: 172 [2022-11-22 01:20:20,780 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 [2022-11-22 01:20:20,781 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-22 01:20:20,781 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] [2022-11-22 01:20:20,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-22 01:20:20,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2022-11-22 01:20:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 139 states have (on average 2.273381294964029) internal successors, (316), 171 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:20,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 316 transitions. [2022-11-22 01:20:20,800 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 316 transitions. Word has length 4 [2022-11-22 01:20:20,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:20,800 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 316 transitions. [2022-11-22 01:20:20,801 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) [2022-11-22 01:20:20,801 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 316 transitions. [2022-11-22 01:20:20,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:20:20,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:20,802 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:20:20,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:20:20,802 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:20,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:20,805 INFO L85 PathProgramCache]: Analyzing trace with hash 13989178, now seen corresponding path program 1 times [2022-11-22 01:20:20,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:20,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015408393] [2022-11-22 01:20:20,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:20,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:20,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:20,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015408393] [2022-11-22 01:20:20,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015408393] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:20,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:20,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:20:20,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115966958] [2022-11-22 01:20:20,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:20,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:20,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:20,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:20,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:20,908 INFO L87 Difference]: Start difference. First operand 172 states and 316 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) [2022-11-22 01:20:21,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:21,019 INFO L93 Difference]: Finished difference Result 171 states and 314 transitions. [2022-11-22 01:20:21,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:20:21,020 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 [2022-11-22 01:20:21,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:21,021 INFO L225 Difference]: With dead ends: 171 [2022-11-22 01:20:21,021 INFO L226 Difference]: Without dead ends: 171 [2022-11-22 01:20:21,022 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 [2022-11-22 01:20:21,023 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 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 [2022-11-22 01:20:21,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:20:21,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-22 01:20:21,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2022-11-22 01:20:21,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 138 states have (on average 2.2753623188405796) internal successors, (314), 170 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 314 transitions. [2022-11-22 01:20:21,028 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 314 transitions. Word has length 4 [2022-11-22 01:20:21,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:21,029 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 314 transitions. [2022-11-22 01:20:21,029 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) [2022-11-22 01:20:21,029 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 314 transitions. [2022-11-22 01:20:21,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:20:21,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:21,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:20:21,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:20:21,030 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:21,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:21,030 INFO L85 PathProgramCache]: Analyzing trace with hash 433685181, now seen corresponding path program 1 times [2022-11-22 01:20:21,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:21,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98804139] [2022-11-22 01:20:21,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:21,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:21,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:21,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98804139] [2022-11-22 01:20:21,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98804139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:21,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:21,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:20:21,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684712114] [2022-11-22 01:20:21,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:21,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:21,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:21,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:21,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:21,090 INFO L87 Difference]: Start difference. First operand 171 states and 314 transitions. Second operand has 3 states, 2 states have (on average 2.5) 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) [2022-11-22 01:20:21,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:21,267 INFO L93 Difference]: Finished difference Result 203 states and 363 transitions. [2022-11-22 01:20:21,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:20:21,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 [2022-11-22 01:20:21,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:21,269 INFO L225 Difference]: With dead ends: 203 [2022-11-22 01:20:21,269 INFO L226 Difference]: Without dead ends: 203 [2022-11-22 01:20:21,269 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 [2022-11-22 01:20:21,270 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 20 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:21,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 5 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:20:21,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-22 01:20:21,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 167. [2022-11-22 01:20:21,275 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) [2022-11-22 01:20:21,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 305 transitions. [2022-11-22 01:20:21,276 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 305 transitions. Word has length 5 [2022-11-22 01:20:21,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:21,277 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 305 transitions. [2022-11-22 01:20:21,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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) [2022-11-22 01:20:21,277 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 305 transitions. [2022-11-22 01:20:21,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:20:21,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:21,278 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:20:21,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:20:21,278 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:21,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:21,279 INFO L85 PathProgramCache]: Analyzing trace with hash 433684786, now seen corresponding path program 1 times [2022-11-22 01:20:21,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:21,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706797711] [2022-11-22 01:20:21,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:21,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:21,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:21,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:21,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706797711] [2022-11-22 01:20:21,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706797711] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:21,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:21,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:20:21,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623842499] [2022-11-22 01:20:21,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:21,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:21,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:21,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:21,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:21,471 INFO L87 Difference]: Start difference. First operand 167 states and 305 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:21,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:21,577 INFO L93 Difference]: Finished difference Result 145 states and 263 transitions. [2022-11-22 01:20:21,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:20:21,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:20:21,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:21,578 INFO L225 Difference]: With dead ends: 145 [2022-11-22 01:20:21,578 INFO L226 Difference]: Without dead ends: 145 [2022-11-22 01:20:21,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:21,579 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:21,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:20:21,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-22 01:20:21,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2022-11-22 01:20:21,583 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) [2022-11-22 01:20:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 263 transitions. [2022-11-22 01:20:21,584 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 263 transitions. Word has length 5 [2022-11-22 01:20:21,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:21,584 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 263 transitions. [2022-11-22 01:20:21,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:21,585 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 263 transitions. [2022-11-22 01:20:21,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:20:21,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:21,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:20:21,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:20:21,586 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:21,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:21,586 INFO L85 PathProgramCache]: Analyzing trace with hash 433669802, now seen corresponding path program 1 times [2022-11-22 01:20:21,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:21,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705118872] [2022-11-22 01:20:21,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:21,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:22,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:22,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:22,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705118872] [2022-11-22 01:20:22,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705118872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:22,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:22,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:20:22,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718145243] [2022-11-22 01:20:22,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:22,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:20:22,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:22,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:20:22,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:20:22,049 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) [2022-11-22 01:20:22,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:22,205 INFO L93 Difference]: Finished difference Result 218 states and 393 transitions. [2022-11-22 01:20:22,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:20:22,206 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 [2022-11-22 01:20:22,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:22,207 INFO L225 Difference]: With dead ends: 218 [2022-11-22 01:20:22,207 INFO L226 Difference]: Without dead ends: 218 [2022-11-22 01:20:22,207 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 [2022-11-22 01:20:22,208 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 [2022-11-22 01:20:22,208 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] [2022-11-22 01:20:22,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-11-22 01:20:22,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 152. [2022-11-22 01:20:22,213 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) [2022-11-22 01:20:22,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 276 transitions. [2022-11-22 01:20:22,214 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 276 transitions. Word has length 5 [2022-11-22 01:20:22,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:22,214 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 276 transitions. [2022-11-22 01:20:22,214 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) [2022-11-22 01:20:22,214 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 276 transitions. [2022-11-22 01:20:22,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:20:22,218 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:22,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:20:22,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:20:22,219 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:22,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:22,225 INFO L85 PathProgramCache]: Analyzing trace with hash 559342147, now seen corresponding path program 1 times [2022-11-22 01:20:22,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:22,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249658278] [2022-11-22 01:20:22,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:22,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:22,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:22,750 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:22,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249658278] [2022-11-22 01:20:22,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249658278] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:22,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:22,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:20:22,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723611719] [2022-11-22 01:20:22,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:22,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:20:22,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:22,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:20:22,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:20:22,753 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) [2022-11-22 01:20:22,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:22,922 INFO L93 Difference]: Finished difference Result 151 states and 274 transitions. [2022-11-22 01:20:22,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:20:22,923 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 [2022-11-22 01:20:22,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:22,923 INFO L225 Difference]: With dead ends: 151 [2022-11-22 01:20:22,924 INFO L226 Difference]: Without dead ends: 151 [2022-11-22 01:20:22,924 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 [2022-11-22 01:20:22,924 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:22,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:20:22,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2022-11-22 01:20:22,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2022-11-22 01:20:22,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 130 states have (on average 2.1076923076923078) internal successors, (274), 150 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:22,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 274 transitions. [2022-11-22 01:20:22,929 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 274 transitions. Word has length 6 [2022-11-22 01:20:22,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:22,930 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 274 transitions. [2022-11-22 01:20:22,930 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) [2022-11-22 01:20:22,930 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 274 transitions. [2022-11-22 01:20:22,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:20:22,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:22,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:20:22,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:20:22,933 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:22,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:22,934 INFO L85 PathProgramCache]: Analyzing trace with hash 159703739, now seen corresponding path program 1 times [2022-11-22 01:20:22,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:22,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696858201] [2022-11-22 01:20:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:22,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:23,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:23,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:23,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696858201] [2022-11-22 01:20:23,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696858201] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:23,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:23,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:20:23,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93208987] [2022-11-22 01:20:23,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:23,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:20:23,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:23,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:20:23,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:20:23,054 INFO L87 Difference]: Start difference. First operand 151 states and 274 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) [2022-11-22 01:20:23,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:23,175 INFO L93 Difference]: Finished difference Result 139 states and 247 transitions. [2022-11-22 01:20:23,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:20:23,175 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 [2022-11-22 01:20:23,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:23,176 INFO L225 Difference]: With dead ends: 139 [2022-11-22 01:20:23,176 INFO L226 Difference]: Without dead ends: 139 [2022-11-22 01:20:23,176 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 [2022-11-22 01:20:23,177 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 [2022-11-22 01:20:23,177 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] [2022-11-22 01:20:23,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-22 01:20:23,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2022-11-22 01:20:23,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 122 states have (on average 2.0245901639344264) internal successors, (247), 138 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:23,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 247 transitions. [2022-11-22 01:20:23,182 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 247 transitions. Word has length 7 [2022-11-22 01:20:23,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:23,182 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 247 transitions. [2022-11-22 01:20:23,182 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) [2022-11-22 01:20:23,183 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 247 transitions. [2022-11-22 01:20:23,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:20:23,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:23,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:20:23,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:20:23,184 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:23,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:23,184 INFO L85 PathProgramCache]: Analyzing trace with hash 159703411, now seen corresponding path program 1 times [2022-11-22 01:20:23,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:23,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280210397] [2022-11-22 01:20:23,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:23,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:23,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:23,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280210397] [2022-11-22 01:20:23,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280210397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:23,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:23,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:20:23,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930939554] [2022-11-22 01:20:23,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:23,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:20:23,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:23,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:20:23,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:20:23,557 INFO L87 Difference]: Start difference. First operand 139 states and 247 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) [2022-11-22 01:20:23,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:23,852 INFO L93 Difference]: Finished difference Result 136 states and 241 transitions. [2022-11-22 01:20:23,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:20:23,853 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 [2022-11-22 01:20:23,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:23,854 INFO L225 Difference]: With dead ends: 136 [2022-11-22 01:20:23,854 INFO L226 Difference]: Without dead ends: 136 [2022-11-22 01:20:23,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:20:23,855 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:23,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 4 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:20:23,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-11-22 01:20:23,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2022-11-22 01:20:23,859 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) [2022-11-22 01:20:23,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 241 transitions. [2022-11-22 01:20:23,859 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 241 transitions. Word has length 7 [2022-11-22 01:20:23,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:23,860 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 241 transitions. [2022-11-22 01:20:23,860 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) [2022-11-22 01:20:23,860 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 241 transitions. [2022-11-22 01:20:23,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:20:23,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:23,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:20:23,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:20:23,861 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:23,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:23,861 INFO L85 PathProgramCache]: Analyzing trace with hash 159736271, now seen corresponding path program 1 times [2022-11-22 01:20:23,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:23,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961292130] [2022-11-22 01:20:23,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:23,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:24,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:24,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961292130] [2022-11-22 01:20:24,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961292130] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:24,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:24,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:20:24,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566464967] [2022-11-22 01:20:24,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:24,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:20:24,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:24,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:20:24,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:20:24,291 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) [2022-11-22 01:20:24,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:24,539 INFO L93 Difference]: Finished difference Result 196 states and 343 transitions. [2022-11-22 01:20:24,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:20:24,540 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 [2022-11-22 01:20:24,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:24,542 INFO L225 Difference]: With dead ends: 196 [2022-11-22 01:20:24,542 INFO L226 Difference]: Without dead ends: 196 [2022-11-22 01:20:24,542 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 [2022-11-22 01:20:24,543 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 50 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:24,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 8 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:20:24,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-22 01:20:24,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 134. [2022-11-22 01:20:24,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 118 states have (on average 2.0084745762711864) internal successors, (237), 133 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:24,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 237 transitions. [2022-11-22 01:20:24,549 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 237 transitions. Word has length 7 [2022-11-22 01:20:24,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:24,549 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 237 transitions. [2022-11-22 01:20:24,549 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) [2022-11-22 01:20:24,549 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 237 transitions. [2022-11-22 01:20:24,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:20:24,550 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:24,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:20:24,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:20:24,550 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:24,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:24,551 INFO L85 PathProgramCache]: Analyzing trace with hash 655848923, now seen corresponding path program 1 times [2022-11-22 01:20:24,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:24,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962061822] [2022-11-22 01:20:24,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:24,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:24,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:24,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:24,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962061822] [2022-11-22 01:20:24,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962061822] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:24,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:24,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:20:24,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582720836] [2022-11-22 01:20:24,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:24,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:20:24,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:24,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:20:24,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:20:24,640 INFO L87 Difference]: Start difference. First operand 134 states and 237 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) [2022-11-22 01:20:24,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:24,870 INFO L93 Difference]: Finished difference Result 154 states and 262 transitions. [2022-11-22 01:20:24,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:20:24,870 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 [2022-11-22 01:20:24,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:24,872 INFO L225 Difference]: With dead ends: 154 [2022-11-22 01:20:24,872 INFO L226 Difference]: Without dead ends: 150 [2022-11-22 01:20:24,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:20:24,873 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:24,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 2 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:20:24,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-22 01:20:24,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 134. [2022-11-22 01:20:24,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 120 states have (on average 1.9666666666666666) internal successors, (236), 133 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:20:24,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 236 transitions. [2022-11-22 01:20:24,893 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 236 transitions. Word has length 8 [2022-11-22 01:20:24,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:24,893 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 236 transitions. [2022-11-22 01:20:24,893 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) [2022-11-22 01:20:24,893 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 236 transitions. [2022-11-22 01:20:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:20:24,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:24,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:20:24,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 01:20:24,895 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:24,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:24,895 INFO L85 PathProgramCache]: Analyzing trace with hash 655837343, now seen corresponding path program 1 times [2022-11-22 01:20:24,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:24,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574295898] [2022-11-22 01:20:24,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:24,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:20:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:20:25,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:20:25,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574295898] [2022-11-22 01:20:25,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574295898] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:20:25,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:20:25,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:20:25,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493251348] [2022-11-22 01:20:25,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:20:25,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:20:25,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:20:25,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:20:25,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:20:25,551 INFO L87 Difference]: Start difference. First operand 134 states and 236 transitions. Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2022-11-22 01:20:25,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:20:25,911 INFO L93 Difference]: Finished difference Result 170 states and 290 transitions. [2022-11-22 01:20:25,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:20:25,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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 [2022-11-22 01:20:25,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:20:25,912 INFO L225 Difference]: With dead ends: 170 [2022-11-22 01:20:25,913 INFO L226 Difference]: Without dead ends: 170 [2022-11-22 01:20:25,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:20:25,913 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 86 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:20:25,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 7 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:20:25,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-22 01:20:25,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 128. [2022-11-22 01:20:25,917 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) [2022-11-22 01:20:25,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 224 transitions. [2022-11-22 01:20:25,918 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 224 transitions. Word has length 8 [2022-11-22 01:20:25,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:20:25,919 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 224 transitions. [2022-11-22 01:20:25,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 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) [2022-11-22 01:20:25,919 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 224 transitions. [2022-11-22 01:20:25,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:20:25,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:20:25,920 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:20:25,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:20:25,920 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 35 more)] === [2022-11-22 01:20:25,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:20:25,923 INFO L85 PathProgramCache]: Analyzing trace with hash 195703853, now seen corresponding path program 1 times [2022-11-22 01:20:25,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:20:25,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938113620] [2022-11-22 01:20:25,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:20:25,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:20:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:20:25,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:20:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:20:25,995 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:20:25,997 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:20:26,000 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK (37 of 38 remaining) [2022-11-22 01:20:26,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 38 remaining) [2022-11-22 01:20:26,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 38 remaining) [2022-11-22 01:20:26,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 38 remaining) [2022-11-22 01:20:26,003 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 38 remaining) [2022-11-22 01:20:26,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 38 remaining) [2022-11-22 01:20:26,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 38 remaining) [2022-11-22 01:20:26,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 38 remaining) [2022-11-22 01:20:26,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 38 remaining) [2022-11-22 01:20:26,004 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 38 remaining) [2022-11-22 01:20:26,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 38 remaining) [2022-11-22 01:20:26,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 38 remaining) [2022-11-22 01:20:26,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 38 remaining) [2022-11-22 01:20:26,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 38 remaining) [2022-11-22 01:20:26,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 38 remaining) [2022-11-22 01:20:26,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 38 remaining) [2022-11-22 01:20:26,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 38 remaining) [2022-11-22 01:20:26,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 38 remaining) [2022-11-22 01:20:26,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 38 remaining) [2022-11-22 01:20:26,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 38 remaining) [2022-11-22 01:20:26,006 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 38 remaining) [2022-11-22 01:20:26,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 38 remaining) [2022-11-22 01:20:26,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 38 remaining) [2022-11-22 01:20:26,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 38 remaining) [2022-11-22 01:20:26,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 38 remaining) [2022-11-22 01:20:26,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 38 remaining) [2022-11-22 01:20:26,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 38 remaining) [2022-11-22 01:20:26,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 38 remaining) [2022-11-22 01:20:26,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 38 remaining) [2022-11-22 01:20:26,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 38 remaining) [2022-11-22 01:20:26,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 38 remaining) [2022-11-22 01:20:26,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 38 remaining) [2022-11-22 01:20:26,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 38 remaining) [2022-11-22 01:20:26,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 38 remaining) [2022-11-22 01:20:26,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 38 remaining) [2022-11-22 01:20:26,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 38 remaining) [2022-11-22 01:20:26,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 38 remaining) [2022-11-22 01:20:26,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 38 remaining) [2022-11-22 01:20:26,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 01:20:26,013 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:20:26,019 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 01:20:26,019 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:20:26,033 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,034 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 [2022-11-22 01:20:26,034 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,035 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 [2022-11-22 01:20:26,035 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,035 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 [2022-11-22 01:20:26,036 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,036 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 [2022-11-22 01:20:26,036 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,037 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 [2022-11-22 01:20:26,037 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,037 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 [2022-11-22 01:20:26,037 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,037 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 [2022-11-22 01:20:26,038 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,038 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 [2022-11-22 01:20:26,038 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,038 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 [2022-11-22 01:20:26,039 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,039 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 [2022-11-22 01:20:26,039 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,039 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 [2022-11-22 01:20:26,040 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,040 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 [2022-11-22 01:20:26,040 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,040 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 [2022-11-22 01:20:26,040 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,041 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 [2022-11-22 01:20:26,041 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,041 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 [2022-11-22 01:20:26,043 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,043 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 [2022-11-22 01:20:26,043 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,043 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 [2022-11-22 01:20:26,044 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,044 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 [2022-11-22 01:20:26,044 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,044 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 [2022-11-22 01:20:26,044 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,045 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 [2022-11-22 01:20:26,046 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,047 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 [2022-11-22 01:20:26,047 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,047 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 [2022-11-22 01:20:26,048 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,048 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 [2022-11-22 01:20:26,048 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,049 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 [2022-11-22 01:20:26,049 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,049 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 [2022-11-22 01:20:26,050 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,050 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 [2022-11-22 01:20:26,050 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,050 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 [2022-11-22 01:20:26,050 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,051 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 [2022-11-22 01:20:26,052 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,052 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 [2022-11-22 01:20:26,054 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,054 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 [2022-11-22 01:20:26,054 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,054 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 [2022-11-22 01:20:26,055 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,055 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 [2022-11-22 01:20:26,055 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,055 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 [2022-11-22 01:20:26,056 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,056 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 [2022-11-22 01:20:26,056 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,056 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 [2022-11-22 01:20:26,057 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,057 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 [2022-11-22 01:20:26,057 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,058 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 [2022-11-22 01:20:26,058 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,060 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 [2022-11-22 01:20:26,060 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,060 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 [2022-11-22 01:20:26,063 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ~B_mutex~0 : ~pthread_mutex_t~0 not handled [2022-11-22 01:20:26,063 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 [2022-11-22 01:20:26,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:20:26 BasicIcfg [2022-11-22 01:20:26,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:20:26,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:20:26,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:20:26,084 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:20:26,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:19:39" (3/4) ... [2022-11-22 01:20:26,087 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:20:26,087 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:20:26,088 INFO L158 Benchmark]: Toolchain (without parser) took 48938.60ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 137.3MB in the beginning and 54.6MB in the end (delta: 82.6MB). Peak memory consumption was 117.9MB. Max. memory is 16.1GB. [2022-11-22 01:20:26,088 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory was 94.8MB in the beginning and 94.7MB in the end (delta: 74.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:20:26,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1007.77ms. Allocated memory is still 169.9MB. Free memory was 137.3MB in the beginning and 108.1MB in the end (delta: 29.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-22 01:20:26,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.35ms. Allocated memory is still 169.9MB. Free memory was 108.1MB in the beginning and 105.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:20:26,089 INFO L158 Benchmark]: Boogie Preprocessor took 74.28ms. Allocated memory is still 169.9MB. Free memory was 105.3MB in the beginning and 103.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:20:26,090 INFO L158 Benchmark]: RCFGBuilder took 675.45ms. Allocated memory is still 169.9MB. Free memory was 103.9MB in the beginning and 84.4MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-22 01:20:26,090 INFO L158 Benchmark]: TraceAbstraction took 47079.88ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 83.6MB in the beginning and 54.6MB in the end (delta: 29.0MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-11-22 01:20:26,090 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 205.5MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:20:26,092 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory was 94.8MB in the beginning and 94.7MB in the end (delta: 74.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1007.77ms. Allocated memory is still 169.9MB. Free memory was 137.3MB in the beginning and 108.1MB in the end (delta: 29.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.35ms. Allocated memory is still 169.9MB. Free memory was 108.1MB in the beginning and 105.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.28ms. Allocated memory is still 169.9MB. Free memory was 105.3MB in the beginning and 103.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 675.45ms. Allocated memory is still 169.9MB. Free memory was 103.9MB in the beginning and 84.4MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 47079.88ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 83.6MB in the beginning and 54.6MB in the end (delta: 29.0MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 205.5MB. Free memory is still 54.6MB. 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.__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.__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.__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.__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.__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.__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.__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.__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.__kind * 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: 39.1s, 128 PlacesBefore, 49 PlacesAfterwards, 124 TransitionsBefore, 45 TransitionsAfterwards, 1584 CoEnabledTransitionPairs, 7 FixpointIterations, 100 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 151 TotalNumberOfCompositions, 6355 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3303, independent: 2967, independent conditional: 0, independent unconditional: 2967, dependent: 336, dependent conditional: 0, dependent unconditional: 336, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1228, independent: 1159, independent conditional: 0, independent unconditional: 1159, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1228, independent: 1124, independent conditional: 0, independent unconditional: 1124, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 104, independent: 35, independent conditional: 0, independent unconditional: 35, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 294, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 227, dependent conditional: 0, dependent unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3303, independent: 1808, independent conditional: 0, independent unconditional: 1808, dependent: 267, dependent conditional: 0, dependent unconditional: 267, unknown: 1228, unknown conditional: 0, unknown unconditional: 1228] , Statistics on independence cache: Total cache size (in pairs): 232, Positive cache size: 193, Positive conditional cache size: 0, Positive unconditional cache size: 193, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, 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={-2:0}, A_mutex={1:0}, B_mutex=0, B_mutex=0, B_mutex=0, B_mutex=0, B_mutex=0, p={-3:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={2:0}] [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: 46.8s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 39.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 407 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 407 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1045 IncrementalHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 51 mSDtfsCounter, 1045 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=0, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 282 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 846 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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 [2022-11-22 01:20:26,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/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_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba --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-b5237d8 [2022-11-22 01:20:28,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:20:28,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:20:28,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:20:28,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:20:28,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:20:28,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:20:28,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:20:28,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:20:28,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:20:28,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:20:28,632 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:20:28,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:20:28,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:20:28,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:20:28,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:20:28,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:20:28,645 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:20:28,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:20:28,652 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:20:28,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:20:28,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:20:28,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:20:28,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:20:28,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:20:28,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:20:28,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:20:28,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:20:28,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:20:28,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:20:28,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:20:28,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:20:28,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:20:28,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:20:28,685 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:20:28,685 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:20:28,686 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:20:28,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:20:28,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:20:28,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:20:28,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:20:28,694 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2022-11-22 01:20:28,740 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:20:28,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:20:28,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:20:28,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:20:28,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:20:28,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:20:28,744 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:20:28,744 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:20:28,744 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:20:28,744 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:20:28,745 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:20:28,746 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:20:28,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-22 01:20:28,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-22 01:20:28,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:20:28,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:20:28,748 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:20:28,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:20:28,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:20:28,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:20:28,749 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-22 01:20:28,749 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-22 01:20:28,750 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-22 01:20:28,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:20:28,750 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:20:28,750 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:20:28,751 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:20:28,751 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:20:28,751 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:20:28,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:20:28,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:20:28,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:20:28,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:20:28,753 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:20:28,753 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:20:28,754 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:20:28,754 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:20:28,754 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:20:28,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:20:28,755 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_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68b918b5051efa1a4363a7cd528e42e31cd4f687fef5116849d37b2131e9c46c [2022-11-22 01:20:29,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:20:29,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:20:29,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:20:29,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:20:29,208 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:20:29,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-22 01:20:32,390 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:20:32,714 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:20:32,715 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/sv-benchmarks/c/goblint-regression/09-regions_02-list_nr.i [2022-11-22 01:20:32,746 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/data/df084e3c6/9bc4b1891f0447d6bdeab13902e2ba42/FLAGb661d637f [2022-11-22 01:20:32,769 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/data/df084e3c6/9bc4b1891f0447d6bdeab13902e2ba42 [2022-11-22 01:20:32,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:20:32,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:20:32,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:20:32,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:20:32,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:20:32,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:20:32" (1/1) ... [2022-11-22 01:20:32,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eee86e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:32, skipping insertion in model container [2022-11-22 01:20:32,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:20:32" (1/1) ... [2022-11-22 01:20:32,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:20:32,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:20:33,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:20:33,492 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:20:33,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:20:33,714 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:20:33,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33 WrapperNode [2022-11-22 01:20:33,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:20:33,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:20:33,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:20:33,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:20:33,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (1/1) ... [2022-11-22 01:20:33,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (1/1) ... [2022-11-22 01:20:33,824 INFO L138 Inliner]: procedures = 369, calls = 29, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 81 [2022-11-22 01:20:33,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:20:33,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:20:33,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:20:33,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:20:33,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (1/1) ... [2022-11-22 01:20:33,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (1/1) ... [2022-11-22 01:20:33,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (1/1) ... [2022-11-22 01:20:33,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (1/1) ... [2022-11-22 01:20:33,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (1/1) ... [2022-11-22 01:20:33,881 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (1/1) ... [2022-11-22 01:20:33,883 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (1/1) ... [2022-11-22 01:20:33,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (1/1) ... [2022-11-22 01:20:33,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:20:33,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:20:33,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:20:33,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:20:33,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (1/1) ... [2022-11-22 01:20:33,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:20:33,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:20:33,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:20:33,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f4b44f9-6d14-4a77-a372-83110e4a77a1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:20:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 01:20:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:20:34,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:20:34,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:20:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 01:20:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-22 01:20:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 01:20:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:20:34,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:20:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:20:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-22 01:20:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-22 01:20:34,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:20:34,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:20:34,009 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:20:34,286 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:20:34,288 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:20:34,842 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:20:34,850 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:20:34,851 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:20:34,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:20:34 BoogieIcfgContainer [2022-11-22 01:20:34,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:20:34,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:20:34,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:20:34,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:20:34,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:20:32" (1/3) ... [2022-11-22 01:20:34,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfdcc95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:20:34, skipping insertion in model container [2022-11-22 01:20:34,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:20:33" (2/3) ... [2022-11-22 01:20:34,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfdcc95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:20:34, skipping insertion in model container [2022-11-22 01:20:34,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:20:34" (3/3) ... [2022-11-22 01:20:34,866 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_02-list_nr.i [2022-11-22 01:20:34,885 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:20:34,885 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2022-11-22 01:20:34,885 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:20:35,029 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 01:20:35,072 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:20:35,102 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 129 places, 125 transitions, 255 flow [2022-11-22 01:20:35,113 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 129 places, 125 transitions, 255 flow [2022-11-22 01:20:35,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 129 places, 125 transitions, 255 flow [2022-11-22 01:20:35,197 INFO L130 PetriNetUnfolder]: 0/124 cut-off events. [2022-11-22 01:20:35,197 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 01:20:35,201 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. [2022-11-22 01:20:35,203 INFO L119 LiptonReduction]: Number of co-enabled transitions 1584 [2022-11-22 01:21:12,485 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 100 DAG size of output: 92 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:21:20,863 WARN L233 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 100 DAG size of output: 93 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:21:56,210 WARN L233 SmtUtils]: Spent 27.02s on a formula simplification. DAG size of input: 117 DAG size of output: 116 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:22:08,609 WARN L233 SmtUtils]: Spent 12.40s on a formula simplification that was a NOOP. DAG size: 112 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:22:30,689 WARN L233 SmtUtils]: Spent 22.08s on a formula simplification. DAG size of input: 118 DAG size of output: 117 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:22:40,755 WARN L233 SmtUtils]: Spent 10.06s 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) [2022-11-22 01:23:19,948 WARN L233 SmtUtils]: Spent 9.70s on a formula simplification. DAG size of input: 153 DAG size of output: 152 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:23:31,512 WARN L233 SmtUtils]: Spent 7.05s on a formula simplification. DAG size of input: 153 DAG size of output: 152 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:28:05,407 WARN L233 SmtUtils]: Spent 4.50m on a formula simplification. DAG size of input: 239 DAG size of output: 224 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:30:07,618 WARN L233 SmtUtils]: Spent 2.04m on a formula simplification that was a NOOP. DAG size: 209 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)