./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi000_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi000_pso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fbc70576c959d9c54432935636519718886fd77 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:34:00,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:34:00,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:34:00,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:34:00,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:34:00,888 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:34:00,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:34:00,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:34:00,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:34:00,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:34:00,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:34:00,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:34:00,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:34:00,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:34:00,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:34:00,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:34:00,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:34:00,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:34:00,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:34:00,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:34:00,950 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:34:00,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:34:00,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:34:00,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:34:00,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:34:00,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:34:00,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:34:00,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:34:00,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:34:00,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:34:00,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:34:00,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:34:00,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:34:00,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:34:00,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:34:00,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:34:00,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:34:00,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:34:00,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:34:00,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:34:00,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:34:00,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:34:01,041 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:34:01,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:34:01,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:34:01,042 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:34:01,046 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:34:01,046 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:34:01,046 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:34:01,046 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:34:01,047 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:34:01,047 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:34:01,048 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:34:01,049 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:34:01,049 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:34:01,049 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:34:01,049 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:34:01,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:34:01,051 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:34:01,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:34:01,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:34:01,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:34:01,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:34:01,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:34:01,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:34:01,053 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:34:01,053 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:34:01,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:34:01,054 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:34:01,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:34:01,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:34:01,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:34:01,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:34:01,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:34:01,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:34:01,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:34:01,058 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:34:01,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:34:01,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:34:01,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:34:01,059 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:34:01,059 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fbc70576c959d9c54432935636519718886fd77 [2021-10-13 07:34:01,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:34:01,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:34:01,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:34:01,477 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:34:01,478 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:34:01,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/pthread-wmm/rfi000_pso.opt.i [2021-10-13 07:34:01,580 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/data/46343609a/74037b4e3bdf4e46bff8f591f50535ab/FLAGade1ff219 [2021-10-13 07:34:02,284 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:34:02,285 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/sv-benchmarks/c/pthread-wmm/rfi000_pso.opt.i [2021-10-13 07:34:02,308 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/data/46343609a/74037b4e3bdf4e46bff8f591f50535ab/FLAGade1ff219 [2021-10-13 07:34:02,323 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/data/46343609a/74037b4e3bdf4e46bff8f591f50535ab [2021-10-13 07:34:02,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:34:02,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:34:02,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:34:02,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:34:02,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:34:02,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:02" (1/1) ... [2021-10-13 07:34:02,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b499ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:02, skipping insertion in model container [2021-10-13 07:34:02,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:34:02" (1/1) ... [2021-10-13 07:34:02,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:34:02,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:34:02,728 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/sv-benchmarks/c/pthread-wmm/rfi000_pso.opt.i[948,961] [2021-10-13 07:34:03,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:34:03,080 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:34:03,098 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/sv-benchmarks/c/pthread-wmm/rfi000_pso.opt.i[948,961] [2021-10-13 07:34:03,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:34:03,252 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:34:03,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03 WrapperNode [2021-10-13 07:34:03,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:34:03,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:34:03,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:34:03,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:34:03,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03" (1/1) ... [2021-10-13 07:34:03,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03" (1/1) ... [2021-10-13 07:34:03,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:34:03,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:34:03,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:34:03,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:34:03,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03" (1/1) ... [2021-10-13 07:34:03,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03" (1/1) ... [2021-10-13 07:34:03,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03" (1/1) ... [2021-10-13 07:34:03,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03" (1/1) ... [2021-10-13 07:34:03,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03" (1/1) ... [2021-10-13 07:34:03,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03" (1/1) ... [2021-10-13 07:34:03,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03" (1/1) ... [2021-10-13 07:34:03,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:34:03,387 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:34:03,387 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:34:03,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:34:03,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03" (1/1) ... [2021-10-13 07:34:03,409 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:34:03,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:34:03,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:34:03,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:34:03,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:34:03,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 07:34:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:34:03,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:34:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-13 07:34:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-13 07:34:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-13 07:34:03,500 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-13 07:34:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:34:03,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 07:34:03,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:34:03,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:34:03,504 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 07:34:05,837 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:34:05,837 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 07:34:05,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:05 BoogieIcfgContainer [2021-10-13 07:34:05,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:34:05,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:34:05,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:34:05,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:34:05,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:34:02" (1/3) ... [2021-10-13 07:34:05,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3869090a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:05, skipping insertion in model container [2021-10-13 07:34:05,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:34:03" (2/3) ... [2021-10-13 07:34:05,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3869090a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:34:05, skipping insertion in model container [2021-10-13 07:34:05,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:05" (3/3) ... [2021-10-13 07:34:05,851 INFO L111 eAbstractionObserver]: Analyzing ICFG rfi000_pso.opt.i [2021-10-13 07:34:05,858 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 07:34:05,858 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:34:05,859 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-13 07:34:05,859 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 07:34:05,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,904 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,904 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,904 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,905 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,905 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,905 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,905 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,905 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,906 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,906 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,907 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,907 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,908 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,909 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,911 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,912 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,913 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,914 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,915 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,915 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,915 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,916 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,916 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,918 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,919 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,920 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,921 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,922 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,923 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,933 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,933 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,934 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,934 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,934 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,934 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,935 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,935 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,935 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,936 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,938 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,939 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,939 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,939 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,940 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,940 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,940 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,940 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,941 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,942 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 07:34:05,947 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-13 07:34:06,016 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:34:06,034 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:34:06,034 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-13 07:34:06,058 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 07:34:06,076 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 89 transitions, 188 flow [2021-10-13 07:34:06,080 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 89 transitions, 188 flow [2021-10-13 07:34:06,083 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 89 transitions, 188 flow [2021-10-13 07:34:06,156 INFO L129 PetriNetUnfolder]: 2/87 cut-off events. [2021-10-13 07:34:06,163 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-13 07:34:06,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 87 events. 2/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2021-10-13 07:34:06,172 INFO L116 LiptonReduction]: Number of co-enabled transitions 1122 [2021-10-13 07:34:17,102 INFO L131 LiptonReduction]: Checked pairs total: 3053 [2021-10-13 07:34:17,102 INFO L133 LiptonReduction]: Total number of compositions: 77 [2021-10-13 07:34:17,119 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 29 places, 23 transitions, 56 flow [2021-10-13 07:34:17,168 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 222 states, 219 states have (on average 2.6392694063926943) internal successors, (578), 221 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:17,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 222 states, 219 states have (on average 2.6392694063926943) internal successors, (578), 221 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:17,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:34:17,190 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:17,191 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:34:17,191 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:34:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:17,199 INFO L82 PathProgramCache]: Analyzing trace with hash 904281806, now seen corresponding path program 1 times [2021-10-13 07:34:17,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:17,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295179671] [2021-10-13 07:34:17,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:17,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:17,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:17,627 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:17,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295179671] [2021-10-13 07:34:17,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295179671] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:17,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:17,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 07:34:17,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254549515] [2021-10-13 07:34:17,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:34:17,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:34:17,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:34:17,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:34:17,667 INFO L87 Difference]: Start difference. First operand has 222 states, 219 states have (on average 2.6392694063926943) internal successors, (578), 221 states have internal predecessors, (578), 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 2.5) 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) [2021-10-13 07:34:17,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:17,762 INFO L93 Difference]: Finished difference Result 192 states and 459 transitions. [2021-10-13 07:34:17,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:34:17,765 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 [2021-10-13 07:34:17,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:17,786 INFO L225 Difference]: With dead ends: 192 [2021-10-13 07:34:17,787 INFO L226 Difference]: Without dead ends: 187 [2021-10-13 07:34:17,788 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:34:17,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-13 07:34:17,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-10-13 07:34:17,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 186 states have (on average 2.4193548387096775) internal successors, (450), 186 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:17,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 450 transitions. [2021-10-13 07:34:17,885 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 450 transitions. Word has length 5 [2021-10-13 07:34:17,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:17,886 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 450 transitions. [2021-10-13 07:34:17,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:17,887 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 450 transitions. [2021-10-13 07:34:17,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 07:34:17,888 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:17,888 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:17,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:34:17,889 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:34:17,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:17,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1426505968, now seen corresponding path program 1 times [2021-10-13 07:34:17,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:17,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536548248] [2021-10-13 07:34:17,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:17,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:18,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:18,180 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:18,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536548248] [2021-10-13 07:34:18,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536548248] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:18,181 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:18,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:34:18,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915516365] [2021-10-13 07:34:18,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:34:18,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:34:18,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:34:18,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:34:18,184 INFO L87 Difference]: Start difference. First operand 187 states and 450 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:18,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:18,237 INFO L93 Difference]: Finished difference Result 192 states and 439 transitions. [2021-10-13 07:34:18,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:34:18,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 07:34:18,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:18,241 INFO L225 Difference]: With dead ends: 192 [2021-10-13 07:34:18,242 INFO L226 Difference]: Without dead ends: 157 [2021-10-13 07:34:18,243 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:34:18,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-10-13 07:34:18,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2021-10-13 07:34:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 156 states have (on average 2.3461538461538463) internal successors, (366), 156 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 366 transitions. [2021-10-13 07:34:18,257 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 366 transitions. Word has length 8 [2021-10-13 07:34:18,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:18,257 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 366 transitions. [2021-10-13 07:34:18,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:18,260 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 366 transitions. [2021-10-13 07:34:18,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:34:18,262 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:18,263 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:18,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:34:18,264 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:34:18,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:18,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1651084023, now seen corresponding path program 1 times [2021-10-13 07:34:18,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:18,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290251963] [2021-10-13 07:34:18,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:18,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:18,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:18,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:18,453 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:18,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290251963] [2021-10-13 07:34:18,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290251963] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:18,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:18,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:34:18,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986523873] [2021-10-13 07:34:18,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:34:18,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:34:18,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:34:18,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:34:18,461 INFO L87 Difference]: Start difference. First operand 157 states and 366 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:18,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:18,497 INFO L93 Difference]: Finished difference Result 167 states and 374 transitions. [2021-10-13 07:34:18,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:34:18,498 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 07:34:18,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:18,506 INFO L225 Difference]: With dead ends: 167 [2021-10-13 07:34:18,507 INFO L226 Difference]: Without dead ends: 147 [2021-10-13 07:34:18,508 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:34:18,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-10-13 07:34:18,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2021-10-13 07:34:18,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 2.315068493150685) internal successors, (338), 146 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:18,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 338 transitions. [2021-10-13 07:34:18,525 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 338 transitions. Word has length 11 [2021-10-13 07:34:18,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:18,526 INFO L470 AbstractCegarLoop]: Abstraction has 147 states and 338 transitions. [2021-10-13 07:34:18,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:18,526 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 338 transitions. [2021-10-13 07:34:18,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 07:34:18,528 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:18,528 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:18,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:34:18,529 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:34:18,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:18,529 INFO L82 PathProgramCache]: Analyzing trace with hash 355988884, now seen corresponding path program 1 times [2021-10-13 07:34:18,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:18,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812013214] [2021-10-13 07:34:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:18,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:18,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:18,875 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:18,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812013214] [2021-10-13 07:34:18,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812013214] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:18,876 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:18,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:34:18,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804197826] [2021-10-13 07:34:18,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:34:18,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:34:18,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:34:18,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:34:18,880 INFO L87 Difference]: Start difference. First operand 147 states and 338 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:19,022 INFO L93 Difference]: Finished difference Result 158 states and 350 transitions. [2021-10-13 07:34:19,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:34:19,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 07:34:19,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:19,024 INFO L225 Difference]: With dead ends: 158 [2021-10-13 07:34:19,024 INFO L226 Difference]: Without dead ends: 143 [2021-10-13 07:34:19,024 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 72.8ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:34:19,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-10-13 07:34:19,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2021-10-13 07:34:19,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 2.295774647887324) internal successors, (326), 142 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 326 transitions. [2021-10-13 07:34:19,035 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 326 transitions. Word has length 12 [2021-10-13 07:34:19,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:19,035 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 326 transitions. [2021-10-13 07:34:19,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,036 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 326 transitions. [2021-10-13 07:34:19,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:34:19,040 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:19,042 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:19,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 07:34:19,043 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:34:19,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:19,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1849259478, now seen corresponding path program 1 times [2021-10-13 07:34:19,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:19,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093743507] [2021-10-13 07:34:19,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:19,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:19,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:19,207 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:19,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093743507] [2021-10-13 07:34:19,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093743507] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:19,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:19,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:34:19,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338392599] [2021-10-13 07:34:19,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:34:19,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:34:19,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:34:19,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:34:19,210 INFO L87 Difference]: Start difference. First operand 143 states and 326 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:19,259 INFO L93 Difference]: Finished difference Result 220 states and 490 transitions. [2021-10-13 07:34:19,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:34:19,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 13 [2021-10-13 07:34:19,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:19,261 INFO L225 Difference]: With dead ends: 220 [2021-10-13 07:34:19,262 INFO L226 Difference]: Without dead ends: 107 [2021-10-13 07:34:19,262 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:34:19,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-13 07:34:19,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-10-13 07:34:19,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 2.2264150943396226) internal successors, (236), 106 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 236 transitions. [2021-10-13 07:34:19,284 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 236 transitions. Word has length 13 [2021-10-13 07:34:19,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:19,284 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 236 transitions. [2021-10-13 07:34:19,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,285 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 236 transitions. [2021-10-13 07:34:19,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 07:34:19,292 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:19,292 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:19,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 07:34:19,293 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:34:19,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:19,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1492460822, now seen corresponding path program 1 times [2021-10-13 07:34:19,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:19,294 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632564705] [2021-10-13 07:34:19,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:19,295 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:19,450 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:19,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632564705] [2021-10-13 07:34:19,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632564705] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:19,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:19,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:34:19,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341739284] [2021-10-13 07:34:19,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:34:19,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:34:19,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:34:19,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:34:19,457 INFO L87 Difference]: Start difference. First operand 107 states and 236 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:19,486 INFO L93 Difference]: Finished difference Result 88 states and 162 transitions. [2021-10-13 07:34:19,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:34:19,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2021-10-13 07:34:19,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:19,488 INFO L225 Difference]: With dead ends: 88 [2021-10-13 07:34:19,488 INFO L226 Difference]: Without dead ends: 61 [2021-10-13 07:34:19,489 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:34:19,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-13 07:34:19,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-10-13 07:34:19,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.7) internal successors, (102), 60 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 102 transitions. [2021-10-13 07:34:19,492 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 102 transitions. Word has length 14 [2021-10-13 07:34:19,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:19,493 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 102 transitions. [2021-10-13 07:34:19,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,493 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 102 transitions. [2021-10-13 07:34:19,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 07:34:19,494 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:19,495 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:19,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 07:34:19,495 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:34:19,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:19,503 INFO L82 PathProgramCache]: Analyzing trace with hash -697814332, now seen corresponding path program 1 times [2021-10-13 07:34:19,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:19,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217804257] [2021-10-13 07:34:19,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:19,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:19,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:19,651 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:19,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217804257] [2021-10-13 07:34:19,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217804257] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:19,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:19,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 07:34:19,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397890270] [2021-10-13 07:34:19,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:34:19,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:34:19,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:34:19,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:34:19,654 INFO L87 Difference]: Start difference. First operand 61 states and 102 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:19,696 INFO L93 Difference]: Finished difference Result 44 states and 66 transitions. [2021-10-13 07:34:19,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:34:19,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2021-10-13 07:34:19,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:19,698 INFO L225 Difference]: With dead ends: 44 [2021-10-13 07:34:19,698 INFO L226 Difference]: Without dead ends: 35 [2021-10-13 07:34:19,699 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 18.7ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:34:19,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-13 07:34:19,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-13 07:34:19,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 34 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2021-10-13 07:34:19,702 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 15 [2021-10-13 07:34:19,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:19,703 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2021-10-13 07:34:19,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:19,703 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2021-10-13 07:34:19,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:34:19,705 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:19,705 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:19,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 07:34:19,706 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:34:19,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:19,707 INFO L82 PathProgramCache]: Analyzing trace with hash 2064001273, now seen corresponding path program 1 times [2021-10-13 07:34:19,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:19,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284164019] [2021-10-13 07:34:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:19,708 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:34:20,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:34:20,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:34:20,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284164019] [2021-10-13 07:34:20,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284164019] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:34:20,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:34:20,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-13 07:34:20,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513375961] [2021-10-13 07:34:20,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 07:34:20,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:34:20,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 07:34:20,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:34:20,098 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:20,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:34:20,259 INFO L93 Difference]: Finished difference Result 44 states and 60 transitions. [2021-10-13 07:34:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:34:20,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 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 18 [2021-10-13 07:34:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:34:20,260 INFO L225 Difference]: With dead ends: 44 [2021-10-13 07:34:20,260 INFO L226 Difference]: Without dead ends: 31 [2021-10-13 07:34:20,261 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 148.4ms TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-10-13 07:34:20,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-13 07:34:20,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-13 07:34:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4) internal successors, (42), 30 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:20,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2021-10-13 07:34:20,262 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 18 [2021-10-13 07:34:20,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:34:20,263 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2021-10-13 07:34:20,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:34:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2021-10-13 07:34:20,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:34:20,264 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:34:20,264 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:34:20,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 07:34:20,264 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 2 more)] === [2021-10-13 07:34:20,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:34:20,265 INFO L82 PathProgramCache]: Analyzing trace with hash 417049657, now seen corresponding path program 2 times [2021-10-13 07:34:20,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:34:20,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23659168] [2021-10-13 07:34:20,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:34:20,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:34:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:34:20,334 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:34:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:34:20,430 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:34:20,430 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:34:20,432 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:34:20,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:34:20,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 07:34:20,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 07:34:20,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:34:20,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 07:34:20,443 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 07:34:20,444 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:34:20,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:34:20 BasicIcfg [2021-10-13 07:34:20,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:34:20,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:34:20,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:34:20,534 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:34:20,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:34:05" (3/4) ... [2021-10-13 07:34:20,537 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 07:34:20,684 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:34:20,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:34:20,686 INFO L168 Benchmark]: Toolchain (without parser) took 18356.69 ms. Allocated memory was 92.3 MB in the beginning and 172.0 MB in the end (delta: 79.7 MB). Free memory was 54.4 MB in the beginning and 103.4 MB in the end (delta: -49.0 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:20,687 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 92.3 MB. Free memory was 63.6 MB in the beginning and 63.6 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:34:20,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 922.57 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 54.2 MB in the beginning and 77.8 MB in the end (delta: -23.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:20,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.24 ms. Allocated memory is still 115.3 MB. Free memory was 77.8 MB in the beginning and 75.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:20,689 INFO L168 Benchmark]: Boogie Preprocessor took 52.96 ms. Allocated memory is still 115.3 MB. Free memory was 75.1 MB in the beginning and 73.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:20,689 INFO L168 Benchmark]: RCFGBuilder took 2453.92 ms. Allocated memory is still 115.3 MB. Free memory was 73.0 MB in the beginning and 70.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:20,690 INFO L168 Benchmark]: TraceAbstraction took 14690.17 ms. Allocated memory was 115.3 MB in the beginning and 172.0 MB in the end (delta: 56.6 MB). Free memory was 70.0 MB in the beginning and 113.9 MB in the end (delta: -43.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:20,690 INFO L168 Benchmark]: Witness Printer took 150.17 ms. Allocated memory is still 172.0 MB. Free memory was 113.9 MB in the beginning and 103.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:34:20,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 92.3 MB. Free memory was 63.6 MB in the beginning and 63.6 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 922.57 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 54.2 MB in the beginning and 77.8 MB in the end (delta: -23.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.24 ms. Allocated memory is still 115.3 MB. Free memory was 77.8 MB in the beginning and 75.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.96 ms. Allocated memory is still 115.3 MB. Free memory was 75.1 MB in the beginning and 73.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2453.92 ms. Allocated memory is still 115.3 MB. Free memory was 73.0 MB in the beginning and 70.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 14690.17 ms. Allocated memory was 115.3 MB in the beginning and 172.0 MB in the end (delta: 56.6 MB). Free memory was 70.0 MB in the beginning and 113.9 MB in the end (delta: -43.9 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Witness Printer took 150.17 ms. Allocated memory is still 172.0 MB. Free memory was 113.9 MB in the beginning and 103.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11021.8ms, 94 PlacesBefore, 29 PlacesAfterwards, 89 TransitionsBefore, 23 TransitionsAfterwards, 1122 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 77 TotalNumberOfCompositions, 3053 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1561, positive: 1428, positive conditional: 0, positive unconditional: 1428, negative: 133, negative conditional: 0, negative unconditional: 133, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 804, positive: 767, positive conditional: 0, positive unconditional: 767, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 804, positive: 747, positive conditional: 0, positive unconditional: 747, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 57, positive: 20, positive conditional: 0, positive unconditional: 20, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 628, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 567, negative conditional: 0, negative unconditional: 567, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1561, positive: 661, positive conditional: 0, positive unconditional: 661, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 804, unknown conditional: 0, unknown unconditional: 804] , Statistics on independence cache: Total cache size (in pairs): 115, Positive cache size: 97, Positive conditional cache size: 0, Positive unconditional cache size: 97, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L800] 0 pthread_t t1591; [L801] FCALL, FORK 0 pthread_create(&t1591, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L802] 0 pthread_t t1592; [L803] FCALL, FORK 0 pthread_create(&t1592, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=0] [L758] 2 x$w_buff1 = x$w_buff0 [L759] 2 x$w_buff0 = 2 [L760] 2 x$w_buff1_used = x$w_buff0_used [L761] 2 x$w_buff0_used = (_Bool)1 [L18] COND FALSE 2 !(!expression) [L763] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L764] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L765] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L766] 2 x$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=0] [L769] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L772] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L775] 2 __unbuffered_p1_EBX = y VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=1] [L738] 1 y = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L741] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, y=2] [L778] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L778] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L779] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L779] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L780] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L780] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L781] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L781] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L782] EXPR 2 x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L782] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 [L785] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L787] 2 return 0; [L744] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L744] EXPR 1 x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x [L744] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L744] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L745] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L745] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L746] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L746] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L747] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L747] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L748] EXPR 1 x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L748] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L753] 1 return 0; [L805] 0 main$tmp_guard0 = __unbuffered_cnt == 2 [L3] COND FALSE 0 !(!cond) [L809] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L809] EXPR 0 x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x [L809] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L809] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L810] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L810] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L811] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L811] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L812] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L812] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L813] EXPR 0 x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L813] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 [L816] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L817] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L818] 0 x$flush_delayed = weak$$choice2 [L819] 0 x$mem_tmp = x [L820] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L820] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L821] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L821] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0) [L821] EXPR 0 weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L821] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L822] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L822] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1) [L822] EXPR 0 weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L822] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L823] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L823] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used) [L823] EXPR 0 weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L823] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L824] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L824] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L824] EXPR 0 weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L824] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L825] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L825] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0) [L825] EXPR 0 weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L825] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L826] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L826] EXPR 0 !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0) [L826] EXPR 0 weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L826] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L827] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 1) [L828] EXPR 0 x$flush_delayed ? x$mem_tmp : x [L828] 0 x = x$flush_delayed ? x$mem_tmp : x [L829] 0 x$flush_delayed = (_Bool)0 [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=2, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, y=2] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 803]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 801]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 109 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 14426.2ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 36.9ms, AutomataDifference: 704.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11138.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 173 SDtfs, 149 SDslu, 283 SDs, 0 SdLazy, 144 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 309.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 298.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=0, InterpolantAutomatonStates: 43, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 149.1ms AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 61.2ms SsaConstructionTime, 840.3ms SatisfiabilityAnalysisTime, 1059.1ms InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 563 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 07:34:20,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b432849-a65c-431d-826d-343cb2a7dea5/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...