./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-wmm/mix004.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5e519f3a 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_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix004.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI --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 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d --- 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-5e519f3 [2022-11-03 02:00:40,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:00:40,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:00:40,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:00:40,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:00:40,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:00:40,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:00:40,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:00:40,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:00:40,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:00:40,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:00:40,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:00:40,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:00:40,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:00:40,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:00:40,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:00:40,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:00:40,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:00:40,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:00:40,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:00:40,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:00:40,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:00:40,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:00:40,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:00:40,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:00:40,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:00:40,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:00:40,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:00:40,235 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:00:40,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:00:40,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:00:40,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:00:40,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:00:40,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:00:40,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:00:40,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:00:40,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:00:40,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:00:40,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:00:40,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:00:40,245 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:00:40,246 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-03 02:00:40,272 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:00:40,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:00:40,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:00:40,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:00:40,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:00:40,274 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:00:40,275 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:00:40,275 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:00:40,275 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:00:40,276 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:00:40,276 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:00:40,276 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:00:40,276 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:00:40,277 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:00:40,277 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:00:40,277 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:00:40,278 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:00:40,278 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:00:40,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:00:40,279 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:00:40,279 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 02:00:40,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:00:40,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:00:40,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:00:40,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:00:40,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:00:40,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:00:40,281 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-03 02:00:40,281 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:00:40,281 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:00:40,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:00:40,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:00:40,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:00:40,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:00:40,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:00:40,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:00:40,283 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:00:40,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:00:40,284 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:00:40,284 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:00:40,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:00:40,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:00:40,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:00:40,285 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_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d [2022-11-03 02:00:40,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:00:40,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:00:40,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:00:40,605 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:00:40,606 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:00:40,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/pthread-wmm/mix004.opt.i [2022-11-03 02:00:40,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/data/07b005161/87a73919863d419480adc1926bad27de/FLAG12fa95335 [2022-11-03 02:00:41,289 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:00:41,290 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/sv-benchmarks/c/pthread-wmm/mix004.opt.i [2022-11-03 02:00:41,323 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/data/07b005161/87a73919863d419480adc1926bad27de/FLAG12fa95335 [2022-11-03 02:00:41,688 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/data/07b005161/87a73919863d419480adc1926bad27de [2022-11-03 02:00:41,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:00:41,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:00:41,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:00:41,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:00:41,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:00:41,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:41" (1/1) ... [2022-11-03 02:00:41,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c28b804 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:41, skipping insertion in model container [2022-11-03 02:00:41,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:41" (1/1) ... [2022-11-03 02:00:41,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:00:41,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:00:42,001 WARN L230 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_85bfbc9a-5089-423e-863d-c856a5195aa2/sv-benchmarks/c/pthread-wmm/mix004.opt.i[944,957] [2022-11-03 02:00:42,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:00:42,234 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:00:42,257 WARN L230 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_85bfbc9a-5089-423e-863d-c856a5195aa2/sv-benchmarks/c/pthread-wmm/mix004.opt.i[944,957] [2022-11-03 02:00:42,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:00:42,380 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:00:42,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42 WrapperNode [2022-11-03 02:00:42,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:00:42,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:00:42,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:00:42,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:00:42,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ... [2022-11-03 02:00:42,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ... [2022-11-03 02:00:42,443 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 299 [2022-11-03 02:00:42,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:00:42,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:00:42,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:00:42,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:00:42,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ... [2022-11-03 02:00:42,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ... [2022-11-03 02:00:42,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ... [2022-11-03 02:00:42,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ... [2022-11-03 02:00:42,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ... [2022-11-03 02:00:42,472 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ... [2022-11-03 02:00:42,475 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ... [2022-11-03 02:00:42,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ... [2022-11-03 02:00:42,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:00:42,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:00:42,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:00:42,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:00:42,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (1/1) ... [2022-11-03 02:00:42,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:00:42,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:00:42,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:00:42,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:00:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:00:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-03 02:00:42,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:00:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:00:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:00:42,590 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-03 02:00:42,590 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-03 02:00:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-03 02:00:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-03 02:00:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-03 02:00:42,591 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-03 02:00:42,591 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-11-03 02:00:42,592 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-11-03 02:00:42,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:00:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-03 02:00:42,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:00:42,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:00:42,596 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 02:00:42,836 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:00:42,838 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:00:43,637 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:00:44,337 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:00:44,337 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 02:00:44,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:44 BoogieIcfgContainer [2022-11-03 02:00:44,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:00:44,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:00:44,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:00:44,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:00:44,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:00:41" (1/3) ... [2022-11-03 02:00:44,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc7f206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:44, skipping insertion in model container [2022-11-03 02:00:44,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:42" (2/3) ... [2022-11-03 02:00:44,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc7f206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:44, skipping insertion in model container [2022-11-03 02:00:44,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:44" (3/3) ... [2022-11-03 02:00:44,366 INFO L112 eAbstractionObserver]: Analyzing ICFG mix004.opt.i [2022-11-03 02:00:44,379 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 02:00:44,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:00:44,391 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-03 02:00:44,392 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 02:00:44,495 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-03 02:00:44,554 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 02:00:44,569 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 155 places, 144 transitions, 308 flow [2022-11-03 02:00:44,574 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 155 places, 144 transitions, 308 flow [2022-11-03 02:00:44,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 155 places, 144 transitions, 308 flow [2022-11-03 02:00:44,693 INFO L130 PetriNetUnfolder]: 2/140 cut-off events. [2022-11-03 02:00:44,694 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-03 02:00:44,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 140 events. 2/140 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 90 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 96. Up to 2 conditions per place. [2022-11-03 02:00:44,703 INFO L118 LiptonReduction]: Number of co-enabled transitions 3982 [2022-11-03 02:00:57,965 INFO L133 LiptonReduction]: Checked pairs total: 13643 [2022-11-03 02:00:57,966 INFO L135 LiptonReduction]: Total number of compositions: 121 [2022-11-03 02:00:57,983 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 39 transitions, 98 flow [2022-11-03 02:00:58,513 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8650 states, 8570 states have (on average 4.369194865810968) internal successors, (37444), 8649 states have internal predecessors, (37444), 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) [2022-11-03 02:00:58,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:00:58,552 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;@404ec514, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:00:58,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-03 02:00:58,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 8650 states, 8570 states have (on average 4.369194865810968) internal successors, (37444), 8649 states have internal predecessors, (37444), 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) [2022-11-03 02:00:58,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 02:00:58,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:58,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 02:00:58,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 02:00:58,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:58,622 INFO L85 PathProgramCache]: Analyzing trace with hash 42269070, now seen corresponding path program 1 times [2022-11-03 02:00:58,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:58,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043836273] [2022-11-03 02:00:58,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:58,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:00:59,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:00:59,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:00:59,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043836273] [2022-11-03 02:00:59,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043836273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:00:59,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:00:59,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 02:00:59,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029733952] [2022-11-03 02:00:59,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:00:59,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:00:59,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:00:59,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:00:59,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:00:59,134 INFO L87 Difference]: Start difference. First operand has 8650 states, 8570 states have (on average 4.369194865810968) internal successors, (37444), 8649 states have internal predecessors, (37444), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:00:59,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:00:59,490 INFO L93 Difference]: Finished difference Result 4366 states and 15183 transitions. [2022-11-03 02:00:59,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:00:59,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-03 02:00:59,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:00:59,546 INFO L225 Difference]: With dead ends: 4366 [2022-11-03 02:00:59,546 INFO L226 Difference]: Without dead ends: 4366 [2022-11-03 02:00:59,547 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 [2022-11-03 02:00:59,550 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:00:59,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 12 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 02:00:59,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4366 states. [2022-11-03 02:00:59,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4366 to 4366. [2022-11-03 02:00:59,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4366 states, 4302 states have (on average 3.5292887029288704) internal successors, (15183), 4365 states have internal predecessors, (15183), 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) [2022-11-03 02:00:59,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4366 states to 4366 states and 15183 transitions. [2022-11-03 02:00:59,939 INFO L78 Accepts]: Start accepts. Automaton has 4366 states and 15183 transitions. Word has length 4 [2022-11-03 02:00:59,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:00:59,939 INFO L495 AbstractCegarLoop]: Abstraction has 4366 states and 15183 transitions. [2022-11-03 02:00:59,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:00:59,940 INFO L276 IsEmpty]: Start isEmpty. Operand 4366 states and 15183 transitions. [2022-11-03 02:00:59,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-03 02:00:59,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:00:59,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:00:59,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:00:59,942 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 02:00:59,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:00:59,944 INFO L85 PathProgramCache]: Analyzing trace with hash -192963551, now seen corresponding path program 1 times [2022-11-03 02:00:59,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:00:59,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208287415] [2022-11-03 02:00:59,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:00:59,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:00:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:00,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:01:00,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:01:00,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208287415] [2022-11-03 02:01:00,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208287415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:01:00,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:01:00,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:01:00,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457257263] [2022-11-03 02:01:00,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:01:00,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:01:00,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:01:00,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:01:00,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:01:00,112 INFO L87 Difference]: Start difference. First operand 4366 states and 15183 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:01:00,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:01:00,271 INFO L93 Difference]: Finished difference Result 2714 states and 9333 transitions. [2022-11-03 02:01:00,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:01:00,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-03 02:01:00,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:01:00,293 INFO L225 Difference]: With dead ends: 2714 [2022-11-03 02:01:00,294 INFO L226 Difference]: Without dead ends: 2714 [2022-11-03 02:01:00,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:01:00,295 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:01:00,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 16 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:01:00,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2022-11-03 02:01:00,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2714. [2022-11-03 02:01:00,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2714 states, 2700 states have (on average 3.4566666666666666) internal successors, (9333), 2713 states have internal predecessors, (9333), 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) [2022-11-03 02:01:00,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2714 states to 2714 states and 9333 transitions. [2022-11-03 02:01:00,488 INFO L78 Accepts]: Start accepts. Automaton has 2714 states and 9333 transitions. Word has length 9 [2022-11-03 02:01:00,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:01:00,489 INFO L495 AbstractCegarLoop]: Abstraction has 2714 states and 9333 transitions. [2022-11-03 02:01:00,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:01:00,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2714 states and 9333 transitions. [2022-11-03 02:01:00,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:01:00,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:01:00,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:01:00,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:01:00,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 02:01:00,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:01:00,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1686904130, now seen corresponding path program 1 times [2022-11-03 02:01:00,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:01:00,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900505368] [2022-11-03 02:01:00,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:00,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:01:00,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:00,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:01:00,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:01:00,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900505368] [2022-11-03 02:01:00,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900505368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:01:00,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:01:00,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:01:00,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896307438] [2022-11-03 02:01:00,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:01:00,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:01:00,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:01:00,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:01:00,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:01:00,633 INFO L87 Difference]: Start difference. First operand 2714 states and 9333 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:01:00,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:01:00,822 INFO L93 Difference]: Finished difference Result 1201 states and 3550 transitions. [2022-11-03 02:01:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:01:00,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-03 02:01:00,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:01:00,831 INFO L225 Difference]: With dead ends: 1201 [2022-11-03 02:01:00,832 INFO L226 Difference]: Without dead ends: 1201 [2022-11-03 02:01:00,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:01:00,837 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 43 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:01:00,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 16 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:01:00,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1201 states. [2022-11-03 02:01:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1201 to 1201. [2022-11-03 02:01:00,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1201 states, 1191 states have (on average 2.9806884970612932) internal successors, (3550), 1200 states have internal predecessors, (3550), 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) [2022-11-03 02:01:00,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1201 states to 1201 states and 3550 transitions. [2022-11-03 02:01:00,898 INFO L78 Accepts]: Start accepts. Automaton has 1201 states and 3550 transitions. Word has length 10 [2022-11-03 02:01:00,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:01:00,899 INFO L495 AbstractCegarLoop]: Abstraction has 1201 states and 3550 transitions. [2022-11-03 02:01:00,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:01:00,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1201 states and 3550 transitions. [2022-11-03 02:01:00,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-03 02:01:00,910 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:01:00,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:01:00,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:01:00,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 02:01:00,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:01:00,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1121363842, now seen corresponding path program 1 times [2022-11-03 02:01:00,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:01:00,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160590858] [2022-11-03 02:01:00,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:00,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:01:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:01,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:01:01,055 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:01:01,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160590858] [2022-11-03 02:01:01,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160590858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:01:01,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:01:01,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:01:01,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056949224] [2022-11-03 02:01:01,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:01:01,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:01:01,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:01:01,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:01:01,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:01:01,059 INFO L87 Difference]: Start difference. First operand 1201 states and 3550 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-03 02:01:01,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:01:01,279 INFO L93 Difference]: Finished difference Result 742 states and 2230 transitions. [2022-11-03 02:01:01,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:01:01,280 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-11-03 02:01:01,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:01:01,289 INFO L225 Difference]: With dead ends: 742 [2022-11-03 02:01:01,289 INFO L226 Difference]: Without dead ends: 742 [2022-11-03 02:01:01,289 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 [2022-11-03 02:01:01,292 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 56 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:01:01,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 20 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:01:01,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-11-03 02:01:01,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2022-11-03 02:01:01,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 738 states have (on average 3.021680216802168) internal successors, (2230), 741 states have internal predecessors, (2230), 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) [2022-11-03 02:01:01,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 2230 transitions. [2022-11-03 02:01:01,317 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 2230 transitions. Word has length 16 [2022-11-03 02:01:01,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:01:01,317 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 2230 transitions. [2022-11-03 02:01:01,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2022-11-03 02:01:01,318 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 2230 transitions. [2022-11-03 02:01:01,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-03 02:01:01,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:01:01,322 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:01:01,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:01:01,328 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-11-03 02:01:01,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:01:01,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1909211358, now seen corresponding path program 1 times [2022-11-03 02:01:01,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:01:01,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706995628] [2022-11-03 02:01:01,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:01:01,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:01:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:01:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:01:01,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:01:01,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706995628] [2022-11-03 02:01:01,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706995628] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:01:01,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:01:01,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:01:01,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019959563] [2022-11-03 02:01:01,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:01:01,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 02:01:01,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:01:01,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 02:01:01,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:01:01,596 INFO L87 Difference]: Start difference. First operand 742 states and 2230 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:01:01,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:01:01,759 INFO L93 Difference]: Finished difference Result 681 states and 2124 transitions. [2022-11-03 02:01:01,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:01:01,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-03 02:01:01,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:01:01,760 INFO L225 Difference]: With dead ends: 681 [2022-11-03 02:01:01,761 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:01:01,761 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-03 02:01:01,762 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 89 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:01:01,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 16 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 02:01:01,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:01:01,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:01:01,763 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) [2022-11-03 02:01:01,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:01:01,763 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-11-03 02:01:01,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:01:01,763 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:01:01,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:01:01,764 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:01:01,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:01:01,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-03 02:01:01,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-03 02:01:01,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-03 02:01:01,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-03 02:01:01,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-03 02:01:01,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-03 02:01:01,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-03 02:01:01,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-03 02:01:01,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-11-03 02:01:01,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-11-03 02:01:01,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-11-03 02:01:01,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-11-03 02:01:01,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-03 02:01:01,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-03 02:01:01,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-03 02:01:01,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-03 02:01:01,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-03 02:01:01,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-03 02:01:01,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-03 02:01:01,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-03 02:01:01,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:01:01,773 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-03 02:01:01,782 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 02:01:01,782 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:01:01,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:01:01 BasicIcfg [2022-11-03 02:01:01,787 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:01:01,788 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:01:01,788 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:01:01,788 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:01:01,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:44" (3/4) ... [2022-11-03 02:01:01,791 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:01:01,797 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-03 02:01:01,797 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-03 02:01:01,797 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-03 02:01:01,797 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2022-11-03 02:01:01,804 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2022-11-03 02:01:01,804 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-03 02:01:01,805 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-03 02:01:01,805 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:01:01,856 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:01:01,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:01:01,857 INFO L158 Benchmark]: Toolchain (without parser) took 20164.52ms. Allocated memory was 138.4MB in the beginning and 297.8MB in the end (delta: 159.4MB). Free memory was 103.7MB in the beginning and 130.3MB in the end (delta: -26.7MB). Peak memory consumption was 132.3MB. Max. memory is 16.1GB. [2022-11-03 02:01:01,858 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 59.6MB in the beginning and 59.6MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:01:01,858 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.20ms. Allocated memory is still 138.4MB. Free memory was 103.4MB in the beginning and 100.1MB in the end (delta: 3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 02:01:01,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.08ms. Allocated memory is still 138.4MB. Free memory was 100.1MB in the beginning and 97.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:01:01,859 INFO L158 Benchmark]: Boogie Preprocessor took 38.78ms. Allocated memory is still 138.4MB. Free memory was 97.4MB in the beginning and 94.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:01:01,859 INFO L158 Benchmark]: RCFGBuilder took 1856.76ms. Allocated memory is still 138.4MB. Free memory was 94.6MB in the beginning and 70.8MB in the end (delta: 23.8MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2022-11-03 02:01:01,859 INFO L158 Benchmark]: TraceAbstraction took 17443.24ms. Allocated memory was 138.4MB in the beginning and 297.8MB in the end (delta: 159.4MB). Free memory was 69.7MB in the beginning and 134.5MB in the end (delta: -64.8MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. [2022-11-03 02:01:01,860 INFO L158 Benchmark]: Witness Printer took 68.77ms. Allocated memory is still 297.8MB. Free memory was 134.5MB in the beginning and 130.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:01:01,863 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 59.6MB in the beginning and 59.6MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 687.20ms. Allocated memory is still 138.4MB. Free memory was 103.4MB in the beginning and 100.1MB in the end (delta: 3.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.08ms. Allocated memory is still 138.4MB. Free memory was 100.1MB in the beginning and 97.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.78ms. Allocated memory is still 138.4MB. Free memory was 97.4MB in the beginning and 94.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1856.76ms. Allocated memory is still 138.4MB. Free memory was 94.6MB in the beginning and 70.8MB in the end (delta: 23.8MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. * TraceAbstraction took 17443.24ms. Allocated memory was 138.4MB in the beginning and 297.8MB in the end (delta: 159.4MB). Free memory was 69.7MB in the beginning and 134.5MB in the end (delta: -64.8MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. * Witness Printer took 68.77ms. Allocated memory is still 297.8MB. Free memory was 134.5MB in the beginning and 130.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.4s, 155 PlacesBefore, 51 PlacesAfterwards, 144 TransitionsBefore, 39 TransitionsAfterwards, 3982 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 1 ChoiceCompositions, 121 TotalNumberOfCompositions, 13643 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5744, positive: 5424, positive conditional: 0, positive unconditional: 5424, negative: 320, negative conditional: 0, negative unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2850, positive: 2760, positive conditional: 0, positive unconditional: 2760, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2850, positive: 2684, positive conditional: 0, positive unconditional: 2684, negative: 166, negative conditional: 0, negative unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 166, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 90, negative conditional: 0, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1147, positive: 227, positive conditional: 0, positive unconditional: 227, negative: 920, negative conditional: 0, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5744, positive: 2664, positive conditional: 0, positive unconditional: 2664, negative: 230, negative conditional: 0, negative unconditional: 230, unknown: 2850, unknown conditional: 0, unknown unconditional: 2850] , Statistics on independence cache: Total cache size (in pairs): 375, Positive cache size: 343, Positive conditional cache size: 0, Positive unconditional cache size: 343, Negative cache size: 32, Negative conditional cache size: 0, Negative unconditional cache size: 32 - 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: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 764]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 779]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 856]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 186 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 184 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 346 IncrementalHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 36 mSDtfsCounter, 346 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8650occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-03 02:01:01,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85bfbc9a-5089-423e-863d-c856a5195aa2/bin/utaipan-7li7fVZpFI/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