./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:42:50,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:42:50,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:42:50,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:42:50,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:42:50,154 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:42:50,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:42:50,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:42:50,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:42:50,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:42:50,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:42:50,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:42:50,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:42:50,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:42:50,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:42:50,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:42:50,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:42:50,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:42:50,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:42:50,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:42:50,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:42:50,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:42:50,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:42:50,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:42:50,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:42:50,208 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:42:50,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:42:50,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:42:50,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:42:50,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:42:50,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:42:50,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:42:50,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:42:50,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:42:50,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:42:50,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:42:50,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:42:50,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:42:50,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:42:50,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:42:50,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:42:50,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:42:50,256 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:42:50,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:42:50,258 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:42:50,258 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:42:50,258 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:42:50,258 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:42:50,258 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:42:50,259 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:42:50,259 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:42:50,259 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:42:50,259 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:42:50,259 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:42:50,260 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:42:50,260 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:42:50,260 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:42:50,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:42:50,261 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:42:50,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:42:50,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:42:50,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:42:50,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:42:50,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:42:50,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:42:50,262 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:42:50,262 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:42:50,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:42:50,263 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:42:50,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:42:50,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:42:50,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:42:50,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:42:50,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:42:50,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:42:50,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:42:50,264 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:42:50,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:42:50,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:42:50,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:42:50,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:42:50,265 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff [2021-11-03 04:42:50,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:42:50,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:42:50,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:42:50,557 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:42:50,557 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:42:50,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2021-11-03 04:42:50,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/data/45147d926/d7c55bbe5bce4b12aa88599ea5cd4d17/FLAG3a8af043e [2021-11-03 04:42:51,210 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:42:51,210 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i [2021-11-03 04:42:51,225 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/data/45147d926/d7c55bbe5bce4b12aa88599ea5cd4d17/FLAG3a8af043e [2021-11-03 04:42:51,463 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/data/45147d926/d7c55bbe5bce4b12aa88599ea5cd4d17 [2021-11-03 04:42:51,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:42:51,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:42:51,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:42:51,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:42:51,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:42:51,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:51,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@469d8eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51, skipping insertion in model container [2021-11-03 04:42:51,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:51,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:42:51,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:42:51,716 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2021-11-03 04:42:51,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:42:51,866 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:42:51,878 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099] [2021-11-03 04:42:51,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:42:51,973 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:42:51,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51 WrapperNode [2021-11-03 04:42:51,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:42:51,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:42:51,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:42:51,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:42:51,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:52,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:52,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:42:52,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:42:52,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:42:52,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:42:52,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:52,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:52,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:52,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:52,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:52,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:52,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:52,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:42:52,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:42:52,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:42:52,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:42:52,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51" (1/1) ... [2021-11-03 04:42:52,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:42:52,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:42:52,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:42:52,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:42:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 04:42:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 04:42:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-03 04:42:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:42:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-11-03 04:42:52,185 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-11-03 04:42:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:42:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 04:42:52,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:42:52,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:42:52,187 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 04:42:52,565 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:42:52,572 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-03 04:42:52,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:42:52 BoogieIcfgContainer [2021-11-03 04:42:52,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:42:52,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:42:52,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:42:52,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:42:52,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:42:51" (1/3) ... [2021-11-03 04:42:52,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2624dfa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:42:52, skipping insertion in model container [2021-11-03 04:42:52,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:51" (2/3) ... [2021-11-03 04:42:52,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2624dfa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:42:52, skipping insertion in model container [2021-11-03 04:42:52,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:42:52" (3/3) ... [2021-11-03 04:42:52,588 INFO L111 eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i [2021-11-03 04:42:52,599 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 04:42:52,599 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:42:52,600 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 04:42:52,600 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 04:42:52,641 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,641 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,641 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,641 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,642 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,642 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,642 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,642 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,643 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,643 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,643 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,644 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,645 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,645 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,646 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,646 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,646 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,646 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,647 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,647 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,647 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,647 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,656 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,656 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,658 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,659 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,659 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,659 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,659 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,660 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,660 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,661 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,661 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,661 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,662 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,662 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,663 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,663 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,663 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,664 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,664 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,664 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,664 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,665 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,666 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,666 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,666 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,666 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,671 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,671 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,672 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,672 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,673 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,673 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,673 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,673 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:42:52,683 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-11-03 04:42:52,746 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:42:52,755 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:42:52,756 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-03 04:42:52,786 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 04:42:52,799 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 83 transitions, 174 flow [2021-11-03 04:42:52,803 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 83 transitions, 174 flow [2021-11-03 04:42:52,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 83 transitions, 174 flow [2021-11-03 04:42:52,872 INFO L129 PetriNetUnfolder]: 4/82 cut-off events. [2021-11-03 04:42:52,873 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-11-03 04:42:52,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 82 events. 4/82 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2021-11-03 04:42:52,884 INFO L116 LiptonReduction]: Number of co-enabled transitions 1040 [2021-11-03 04:42:56,538 INFO L131 LiptonReduction]: Checked pairs total: 2956 [2021-11-03 04:42:56,538 INFO L133 LiptonReduction]: Total number of compositions: 89 [2021-11-03 04:42:56,547 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 23 transitions, 54 flow [2021-11-03 04:42:56,563 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 78 states, 70 states have (on average 2.0285714285714285) internal successors, (142), 77 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:56,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 70 states have (on average 2.0285714285714285) internal successors, (142), 77 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:56,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2021-11-03 04:42:56,571 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:56,572 INFO L513 BasicCegarLoop]: trace histogram [1] [2021-11-03 04:42:56,573 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-03 04:42:56,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:56,579 INFO L85 PathProgramCache]: Analyzing trace with hash 328, now seen corresponding path program 1 times [2021-11-03 04:42:56,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:42:56,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913547479] [2021-11-03 04:42:56,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:56,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:42:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:56,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:42:56,700 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:42:56,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913547479] [2021-11-03 04:42:56,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913547479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:56,701 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:56,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-11-03 04:42:56,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386795398] [2021-11-03 04:42:56,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:42:56,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:42:56,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:42:56,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:42:56,726 INFO L87 Difference]: Start difference. First operand has 78 states, 70 states have (on average 2.0285714285714285) internal successors, (142), 77 states have internal predecessors, (142), 0 states have call successors, (0), 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) [2021-11-03 04:42:56,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:56,749 INFO L93 Difference]: Finished difference Result 77 states and 134 transitions. [2021-11-03 04:42:56,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:42:56,750 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 [2021-11-03 04:42:56,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:56,760 INFO L225 Difference]: With dead ends: 77 [2021-11-03 04:42:56,761 INFO L226 Difference]: Without dead ends: 71 [2021-11-03 04:42:56,763 INFO L786 BasicCegarLoop]: 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 [2021-11-03 04:42:56,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-03 04:42:56,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-03 04:42:56,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 66 states have (on average 1.8484848484848484) internal successors, (122), 70 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:56,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 122 transitions. [2021-11-03 04:42:56,815 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 122 transitions. Word has length 1 [2021-11-03 04:42:56,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:56,815 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 122 transitions. [2021-11-03 04:42:56,815 INFO L471 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) [2021-11-03 04:42:56,816 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 122 transitions. [2021-11-03 04:42:56,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 04:42:56,816 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:56,816 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 04:42:56,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:42:56,817 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-03 04:42:56,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:56,819 INFO L85 PathProgramCache]: Analyzing trace with hash 10103556, now seen corresponding path program 1 times [2021-11-03 04:42:56,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:42:56,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043155019] [2021-11-03 04:42:56,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:56,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:42:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:57,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:42:57,036 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:42:57,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043155019] [2021-11-03 04:42:57,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043155019] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:57,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:57,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:42:57,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205312076] [2021-11-03 04:42:57,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:42:57,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:42:57,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:42:57,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:42:57,052 INFO L87 Difference]: Start difference. First operand 71 states and 122 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) [2021-11-03 04:42:57,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:57,085 INFO L93 Difference]: Finished difference Result 68 states and 116 transitions. [2021-11-03 04:42:57,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:42:57,086 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 [2021-11-03 04:42:57,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:57,090 INFO L225 Difference]: With dead ends: 68 [2021-11-03 04:42:57,090 INFO L226 Difference]: Without dead ends: 68 [2021-11-03 04:42:57,091 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:42:57,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-03 04:42:57,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-11-03 04:42:57,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 63 states have (on average 1.8412698412698412) internal successors, (116), 67 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 116 transitions. [2021-11-03 04:42:57,108 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 116 transitions. Word has length 4 [2021-11-03 04:42:57,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:57,109 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 116 transitions. [2021-11-03 04:42:57,110 INFO L471 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) [2021-11-03 04:42:57,110 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 116 transitions. [2021-11-03 04:42:57,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 04:42:57,111 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:57,111 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 04:42:57,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 04:42:57,117 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-03 04:42:57,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:57,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1119537108, now seen corresponding path program 1 times [2021-11-03 04:42:57,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:42:57,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423392032] [2021-11-03 04:42:57,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:57,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:42:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:42:57,219 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:42:57,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423392032] [2021-11-03 04:42:57,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423392032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:57,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:57,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:42:57,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948602051] [2021-11-03 04:42:57,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:42:57,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:42:57,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:42:57,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:42:57,221 INFO L87 Difference]: Start difference. First operand 68 states and 116 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:57,257 INFO L93 Difference]: Finished difference Result 73 states and 120 transitions. [2021-11-03 04:42:57,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:42:57,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-03 04:42:57,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:57,260 INFO L225 Difference]: With dead ends: 73 [2021-11-03 04:42:57,260 INFO L226 Difference]: Without dead ends: 69 [2021-11-03 04:42:57,261 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:42:57,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-03 04:42:57,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 67. [2021-11-03 04:42:57,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 62 states have (on average 1.7741935483870968) internal successors, (110), 66 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 110 transitions. [2021-11-03 04:42:57,274 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 110 transitions. Word has length 6 [2021-11-03 04:42:57,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:57,274 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 110 transitions. [2021-11-03 04:42:57,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,275 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 110 transitions. [2021-11-03 04:42:57,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-03 04:42:57,276 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:57,277 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-03 04:42:57,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 04:42:57,277 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-03 04:42:57,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:57,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1119795833, now seen corresponding path program 1 times [2021-11-03 04:42:57,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:42:57,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160705555] [2021-11-03 04:42:57,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:57,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:42:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:57,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:42:57,382 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:42:57,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160705555] [2021-11-03 04:42:57,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160705555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:57,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:57,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:42:57,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061170403] [2021-11-03 04:42:57,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:42:57,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:42:57,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:42:57,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:42:57,390 INFO L87 Difference]: Start difference. First operand 67 states and 110 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) [2021-11-03 04:42:57,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:57,483 INFO L93 Difference]: Finished difference Result 79 states and 126 transitions. [2021-11-03 04:42:57,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:42:57,489 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 [2021-11-03 04:42:57,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:57,492 INFO L225 Difference]: With dead ends: 79 [2021-11-03 04:42:57,492 INFO L226 Difference]: Without dead ends: 75 [2021-11-03 04:42:57,493 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:42:57,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-03 04:42:57,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 68. [2021-11-03 04:42:57,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 64 states have (on average 1.71875) internal successors, (110), 67 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 110 transitions. [2021-11-03 04:42:57,508 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 110 transitions. Word has length 6 [2021-11-03 04:42:57,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:57,509 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 110 transitions. [2021-11-03 04:42:57,509 INFO L471 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) [2021-11-03 04:42:57,509 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 110 transitions. [2021-11-03 04:42:57,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-03 04:42:57,510 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:57,510 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:57,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 04:42:57,510 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-03 04:42:57,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:57,512 INFO L85 PathProgramCache]: Analyzing trace with hash 347007742, now seen corresponding path program 1 times [2021-11-03 04:42:57,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:42:57,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798082155] [2021-11-03 04:42:57,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:57,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:42:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:57,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:42:57,558 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:42:57,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798082155] [2021-11-03 04:42:57,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798082155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:57,559 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:57,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:42:57,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16655239] [2021-11-03 04:42:57,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:42:57,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:42:57,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:42:57,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:42:57,562 INFO L87 Difference]: Start difference. First operand 68 states and 110 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:57,573 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2021-11-03 04:42:57,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:42:57,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-03 04:42:57,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:57,574 INFO L225 Difference]: With dead ends: 22 [2021-11-03 04:42:57,574 INFO L226 Difference]: Without dead ends: 22 [2021-11-03 04:42:57,575 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:42:57,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-03 04:42:57,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-03 04:42:57,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.05) internal successors, (21), 21 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2021-11-03 04:42:57,579 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 7 [2021-11-03 04:42:57,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:57,579 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2021-11-03 04:42:57,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,579 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2021-11-03 04:42:57,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 04:42:57,580 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:57,580 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:57,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 04:42:57,581 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-03 04:42:57,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:57,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1357226460, now seen corresponding path program 1 times [2021-11-03 04:42:57,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:42:57,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554724972] [2021-11-03 04:42:57,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:57,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:42:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:57,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:42:57,681 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:42:57,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554724972] [2021-11-03 04:42:57,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554724972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:57,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:57,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:42:57,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023149341] [2021-11-03 04:42:57,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:42:57,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:42:57,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:42:57,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:42:57,684 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:57,738 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2021-11-03 04:42:57,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:42:57,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-03 04:42:57,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:57,739 INFO L225 Difference]: With dead ends: 21 [2021-11-03 04:42:57,740 INFO L226 Difference]: Without dead ends: 13 [2021-11-03 04:42:57,740 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:42:57,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-03 04:42:57,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-03 04:42:57,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-11-03 04:42:57,742 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2021-11-03 04:42:57,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:57,742 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-11-03 04:42:57,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,743 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-11-03 04:42:57,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 04:42:57,743 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:57,743 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:57,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 04:42:57,744 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 4 more)] === [2021-11-03 04:42:57,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:57,744 INFO L85 PathProgramCache]: Analyzing trace with hash -287401333, now seen corresponding path program 1 times [2021-11-03 04:42:57,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:42:57,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458030753] [2021-11-03 04:42:57,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:57,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:42:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:57,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:42:57,829 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:42:57,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458030753] [2021-11-03 04:42:57,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458030753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:57,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:57,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 04:42:57,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051579666] [2021-11-03 04:42:57,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:42:57,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:42:57,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:42:57,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:42:57,834 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:57,888 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-11-03 04:42:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:42:57,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 04:42:57,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:57,889 INFO L225 Difference]: With dead ends: 12 [2021-11-03 04:42:57,892 INFO L226 Difference]: Without dead ends: 0 [2021-11-03 04:42:57,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:42:57,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-03 04:42:57,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-03 04:42:57,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-03 04:42:57,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-11-03 04:42:57,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:57,894 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-03 04:42:57,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:42:57,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-03 04:42:57,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-03 04:42:57,898 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:42:57,898 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:42:57,898 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 04:42:57,899 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:42:57,899 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:42:57,899 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:42:57,899 INFO L764 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:42:57,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-03 04:42:57,902 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:57,906 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-03 04:42:57,907 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:42:57,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:42:57 BasicIcfg [2021-11-03 04:42:57,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:42:57,910 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:42:57,910 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:42:57,910 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:42:57,911 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:42:52" (3/4) ... [2021-11-03 04:42:57,913 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-03 04:42:57,920 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2021-11-03 04:42:57,925 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-03 04:42:57,925 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-03 04:42:57,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:42:57,926 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-03 04:42:57,980 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:42:57,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:42:57,982 INFO L168 Benchmark]: Toolchain (without parser) took 6514.17 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 75.9 MB in the beginning and 52.2 MB in the end (delta: 23.8 MB). Peak memory consumption was 57.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:42:57,982 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 117.4 MB. Free memory was 93.7 MB in the beginning and 93.6 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:42:57,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.85 ms. Allocated memory is still 117.4 MB. Free memory was 75.8 MB in the beginning and 81.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:42:57,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.45 ms. Allocated memory is still 117.4 MB. Free memory was 81.7 MB in the beginning and 79.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:42:57,984 INFO L168 Benchmark]: Boogie Preprocessor took 40.29 ms. Allocated memory is still 117.4 MB. Free memory was 79.6 MB in the beginning and 78.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:42:57,984 INFO L168 Benchmark]: RCFGBuilder took 476.10 ms. Allocated memory is still 117.4 MB. Free memory was 78.2 MB in the beginning and 66.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 04:42:57,985 INFO L168 Benchmark]: TraceAbstraction took 5330.41 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 65.6 MB in the beginning and 54.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:42:57,985 INFO L168 Benchmark]: Witness Printer took 70.81 ms. Allocated memory is still 151.0 MB. Free memory was 54.3 MB in the beginning and 52.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:42:57,987 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 117.4 MB. Free memory was 93.7 MB in the beginning and 93.6 MB in the end (delta: 64.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 505.85 ms. Allocated memory is still 117.4 MB. Free memory was 75.8 MB in the beginning and 81.7 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.45 ms. Allocated memory is still 117.4 MB. Free memory was 81.7 MB in the beginning and 79.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.29 ms. Allocated memory is still 117.4 MB. Free memory was 79.6 MB in the beginning and 78.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 476.10 ms. Allocated memory is still 117.4 MB. Free memory was 78.2 MB in the beginning and 66.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5330.41 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 65.6 MB in the beginning and 54.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 46.7 MB. Max. memory is 16.1 GB. * Witness Printer took 70.81 ms. Allocated memory is still 151.0 MB. Free memory was 54.3 MB in the beginning and 52.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 83 PlacesBefore, 26 PlacesAfterwards, 83 TransitionsBefore, 23 TransitionsAfterwards, 1040 CoEnabledTransitionPairs, 8 FixpointIterations, 35 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 6 ConcurrentYvCompositions, 3 ChoiceCompositions, 89 TotalNumberOfCompositions, 2956 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1599, positive: 1386, positive conditional: 0, positive unconditional: 1386, negative: 213, negative conditional: 0, negative unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 834, positive: 785, positive conditional: 0, positive unconditional: 785, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 834, positive: 752, positive conditional: 0, positive unconditional: 752, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 82, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 145, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 114, negative conditional: 0, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1599, positive: 601, positive conditional: 0, positive unconditional: 601, negative: 164, negative conditional: 0, negative unconditional: 164, unknown: 834, unknown conditional: 0, unknown unconditional: 834] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 64, Positive conditional cache size: 0, Positive unconditional cache size: 64, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 106 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 107 SDtfs, 56 SDslu, 70 SDs, 0 SdLazy, 150 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-03 04:42:58,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f562c7d2-12db-4311-ba77-1c09e3720d24/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE