./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:31:15,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:31:15,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:31:15,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:31:15,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:31:15,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:31:15,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:31:15,217 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:31:15,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:31:15,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:31:15,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:31:15,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:31:15,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:31:15,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:31:15,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:31:15,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:31:15,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:31:15,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:31:15,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:31:15,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:31:15,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:31:15,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:31:15,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:31:15,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:31:15,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:31:15,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:31:15,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:31:15,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:31:15,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:31:15,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:31:15,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:31:15,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:31:15,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:31:15,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:31:15,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:31:15,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:31:15,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:31:15,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:31:15,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:31:15,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:31:15,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:31:15,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:31:15,285 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:31:15,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:31:15,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:31:15,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:31:15,287 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:31:15,287 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:31:15,287 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:31:15,287 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:31:15,288 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:31:15,288 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:31:15,288 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:31:15,288 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:31:15,289 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:31:15,289 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:31:15,289 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:31:15,290 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:31:15,290 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:31:15,290 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:31:15,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:31:15,291 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:31:15,291 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:31:15,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:31:15,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:31:15,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:31:15,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:31:15,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:31:15,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:31:15,293 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:31:15,294 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:31:15,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:31:15,294 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:31:15,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:31:15,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:31:15,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:31:15,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:31:15,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:31:15,296 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:31:15,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:31:15,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:31:15,297 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:31:15,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:31:15,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:31:15,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:31:15,298 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39dcc47a23129180b44ef3e235976e9c499f5290fa3f0e6dd106879ae94f5ae2 [2022-11-22 01:31:15,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:31:15,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:31:15,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:31:15,552 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:31:15,553 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:31:15,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2022-11-22 01:31:18,600 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:31:18,791 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:31:18,791 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c [2022-11-22 01:31:18,804 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/data/86bf04937/532c0eeb2d68478a9272903a1c13bf67/FLAGe0bdf8bec [2022-11-22 01:31:18,831 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/data/86bf04937/532c0eeb2d68478a9272903a1c13bf67 [2022-11-22 01:31:18,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:31:18,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:31:18,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:31:18,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:31:18,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:31:18,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:31:18" (1/1) ... [2022-11-22 01:31:18,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aceaf88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:18, skipping insertion in model container [2022-11-22 01:31:18,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:31:18" (1/1) ... [2022-11-22 01:31:18,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:31:18,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:31:19,060 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-11-22 01:31:19,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:31:19,077 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:31:19,117 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/sv-benchmarks/c/weaver/parallel-bakery-4.wvr.c[7978,7991] [2022-11-22 01:31:19,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:31:19,132 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:31:19,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19 WrapperNode [2022-11-22 01:31:19,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:31:19,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:31:19,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:31:19,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:31:19,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (1/1) ... [2022-11-22 01:31:19,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (1/1) ... [2022-11-22 01:31:19,189 INFO L138 Inliner]: procedures = 23, calls = 176, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 408 [2022-11-22 01:31:19,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:31:19,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:31:19,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:31:19,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:31:19,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (1/1) ... [2022-11-22 01:31:19,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (1/1) ... [2022-11-22 01:31:19,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (1/1) ... [2022-11-22 01:31:19,206 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (1/1) ... [2022-11-22 01:31:19,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (1/1) ... [2022-11-22 01:31:19,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (1/1) ... [2022-11-22 01:31:19,222 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (1/1) ... [2022-11-22 01:31:19,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (1/1) ... [2022-11-22 01:31:19,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:31:19,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:31:19,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:31:19,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:31:19,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (1/1) ... [2022-11-22 01:31:19,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:31:19,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:19,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:31:19,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_323ac9dc-189e-4c4a-9ae2-7e6be7b8c758/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:31:19,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:31:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-22 01:31:19,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-22 01:31:19,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-22 01:31:19,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-22 01:31:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-22 01:31:19,320 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-22 01:31:19,320 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-22 01:31:19,321 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-22 01:31:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:31:19,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:31:19,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:31:19,322 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 01:31:19,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 01:31:19,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:31:19,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:31:19,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:31:19,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:31:19,326 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:31:19,495 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:31:19,498 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:31:20,142 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:31:20,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:31:20,396 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:31:20,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:31:20 BoogieIcfgContainer [2022-11-22 01:31:20,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:31:20,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:31:20,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:31:20,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:31:20,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:31:18" (1/3) ... [2022-11-22 01:31:20,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e04e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:31:20, skipping insertion in model container [2022-11-22 01:31:20,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:31:19" (2/3) ... [2022-11-22 01:31:20,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45e04e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:31:20, skipping insertion in model container [2022-11-22 01:31:20,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:31:20" (3/3) ... [2022-11-22 01:31:20,414 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-4.wvr.c [2022-11-22 01:31:20,421 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 01:31:20,429 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:31:20,429 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-22 01:31:20,429 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:31:20,539 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-22 01:31:20,584 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:31:20,599 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 217 transitions, 466 flow [2022-11-22 01:31:20,602 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 217 transitions, 466 flow [2022-11-22 01:31:20,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 217 transitions, 466 flow [2022-11-22 01:31:20,719 INFO L130 PetriNetUnfolder]: 2/213 cut-off events. [2022-11-22 01:31:20,719 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-22 01:31:20,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 213 events. 2/213 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 285 event pairs, 0 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 162. Up to 2 conditions per place. [2022-11-22 01:31:20,732 INFO L119 LiptonReduction]: Number of co-enabled transitions 8064 [2022-11-22 01:31:29,781 INFO L134 LiptonReduction]: Checked pairs total: 76907 [2022-11-22 01:31:29,781 INFO L136 LiptonReduction]: Total number of compositions: 161 [2022-11-22 01:31:29,789 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 102 places, 89 transitions, 210 flow [2022-11-22 01:31:38,302 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 234590 states, 233962 states have (on average 4.2365768800061545) internal successors, (991198), 234589 states have internal predecessors, (991198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:38,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:31:38,348 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a9a24cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:31:38,349 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-22 01:31:38,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 234590 states, 233962 states have (on average 4.2365768800061545) internal successors, (991198), 234589 states have internal predecessors, (991198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:38,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:31:38,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:38,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:31:38,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-11-22 01:31:38,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:38,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1156223520, now seen corresponding path program 1 times [2022-11-22 01:31:38,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:38,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064308746] [2022-11-22 01:31:38,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:38,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:38,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:31:39,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:39,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064308746] [2022-11-22 01:31:39,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064308746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:39,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:39,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:31:39,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463597085] [2022-11-22 01:31:39,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:39,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:31:39,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:39,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:31:39,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:31:39,734 INFO L87 Difference]: Start difference. First operand has 234590 states, 233962 states have (on average 4.2365768800061545) internal successors, (991198), 234589 states have internal predecessors, (991198), 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 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:31:45,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:45,919 INFO L93 Difference]: Finished difference Result 263464 states and 1107046 transitions. [2022-11-22 01:31:45,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:31:45,921 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:31:45,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:48,856 INFO L225 Difference]: With dead ends: 263464 [2022-11-22 01:31:48,856 INFO L226 Difference]: Without dead ends: 263284 [2022-11-22 01:31:48,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:31:48,860 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 100 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:48,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 26 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 01:31:50,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263284 states. [2022-11-22 01:32:00,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263284 to 244360. [2022-11-22 01:32:00,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244360 states, 243736 states have (on average 4.274785013293071) internal successors, (1041919), 244359 states have internal predecessors, (1041919), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:03,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244360 states to 244360 states and 1041919 transitions. [2022-11-22 01:32:03,328 INFO L78 Accepts]: Start accepts. Automaton has 244360 states and 1041919 transitions. Word has length 5 [2022-11-22 01:32:03,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:32:03,329 INFO L495 AbstractCegarLoop]: Abstraction has 244360 states and 1041919 transitions. [2022-11-22 01:32:03,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:03,330 INFO L276 IsEmpty]: Start isEmpty. Operand 244360 states and 1041919 transitions. [2022-11-22 01:32:03,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:32:03,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:32:03,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:32:03,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:32:03,331 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 33 more)] === [2022-11-22 01:32:03,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:32:03,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1156223521, now seen corresponding path program 1 times [2022-11-22 01:32:03,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:32:03,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67269437] [2022-11-22 01:32:03,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:32:03,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:32:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:03,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:32:03,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:03,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67269437] [2022-11-22 01:32:03,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67269437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:32:03,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:32:03,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:32:03,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820982001] [2022-11-22 01:32:03,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:32:03,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:32:03,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:03,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:32:03,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:32:03,462 INFO L87 Difference]: Start difference. First operand 244360 states and 1041919 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:32:07,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:32:07,193 INFO L93 Difference]: Finished difference Result 194402 states and 820992 transitions. [2022-11-22 01:32:07,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:32:07,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:32:07,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:32:08,753 INFO L225 Difference]: With dead ends: 194402 [2022-11-22 01:32:08,753 INFO L226 Difference]: Without dead ends: 194402 [2022-11-22 01:32:08,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:32:08,754 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:32:08,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 7 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:32:10,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194402 states.