./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE --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 f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-e943c26 [2021-10-24 10:56:09,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:56:09,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:56:09,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:56:09,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:56:09,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:56:09,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:56:09,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:56:09,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:56:09,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:56:09,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:56:09,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:56:09,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:56:09,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:56:09,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:56:09,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:56:09,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:56:09,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:56:09,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:56:09,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:56:09,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:56:09,511 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:56:09,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:56:09,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:56:09,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:56:09,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:56:09,517 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:56:09,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:56:09,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:56:09,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:56:09,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:56:09,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:56:09,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:56:09,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:56:09,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:56:09,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:56:09,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:56:09,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:56:09,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:56:09,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:56:09,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:56:09,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:56:09,556 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:56:09,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:56:09,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:56:09,557 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:56:09,558 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:56:09,558 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:56:09,558 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:56:09,558 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:56:09,558 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:56:09,559 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:56:09,559 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:56:09,559 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:56:09,559 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:56:09,559 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:56:09,560 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:56:09,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:56:09,560 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:56:09,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:56:09,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:56:09,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:56:09,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:56:09,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:56:09,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:56:09,562 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:56:09,562 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:56:09,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:56:09,562 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:56:09,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:56:09,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:56:09,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:56:09,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:56:09,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:56:09,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:56:09,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:56:09,564 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:56:09,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:56:09,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:56:09,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:56:09,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:56:09,565 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_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d8ae33a1a7c98578096fc4895533f629cc4062ad641b886abfeea14ddb85d4 [2021-10-24 10:56:09,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:56:09,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:56:09,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:56:09,834 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:56:09,835 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:56:09,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/pthread-wmm/thin002_rmo.i [2021-10-24 10:56:09,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/data/a6a36fccc/c5972b71b7fb4ad685f22f58603f0b59/FLAGd6c8715ba [2021-10-24 10:56:10,409 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:56:10,421 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/sv-benchmarks/c/pthread-wmm/thin002_rmo.i [2021-10-24 10:56:10,450 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/data/a6a36fccc/c5972b71b7fb4ad685f22f58603f0b59/FLAGd6c8715ba [2021-10-24 10:56:10,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/data/a6a36fccc/c5972b71b7fb4ad685f22f58603f0b59 [2021-10-24 10:56:10,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:56:10,713 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:56:10,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:56:10,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:56:10,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:56:10,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:56:10" (1/1) ... [2021-10-24 10:56:10,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57047ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:10, skipping insertion in model container [2021-10-24 10:56:10,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:56:10" (1/1) ... [2021-10-24 10:56:10,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:56:10,769 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:56:10,975 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_76ed41ea-693d-4016-a010-5adb6a8cbf6a/sv-benchmarks/c/pthread-wmm/thin002_rmo.i[988,1001] [2021-10-24 10:56:11,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:56:11,282 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:56:11,303 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_76ed41ea-693d-4016-a010-5adb6a8cbf6a/sv-benchmarks/c/pthread-wmm/thin002_rmo.i[988,1001] [2021-10-24 10:56:11,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:56:11,427 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:56:11,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11 WrapperNode [2021-10-24 10:56:11,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:56:11,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:56:11,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:56:11,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:56:11,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11" (1/1) ... [2021-10-24 10:56:11,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11" (1/1) ... [2021-10-24 10:56:11,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:56:11,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:56:11,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:56:11,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:56:11,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11" (1/1) ... [2021-10-24 10:56:11,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11" (1/1) ... [2021-10-24 10:56:11,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11" (1/1) ... [2021-10-24 10:56:11,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11" (1/1) ... [2021-10-24 10:56:11,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11" (1/1) ... [2021-10-24 10:56:11,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11" (1/1) ... [2021-10-24 10:56:11,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11" (1/1) ... [2021-10-24 10:56:11,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:56:11,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:56:11,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:56:11,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:56:11,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11" (1/1) ... [2021-10-24 10:56:11,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:56:11,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:56:11,607 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:56:11,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:56:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-24 10:56:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-24 10:56:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-24 10:56:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:56:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 10:56:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-24 10:56:11,654 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-24 10:56:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-24 10:56:11,654 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-24 10:56:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-24 10:56:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-24 10:56:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-10-24 10:56:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-10-24 10:56:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 10:56:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-24 10:56:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:56:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:56:11,658 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-24 10:56:13,417 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:56:13,417 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-24 10:56:13,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:56:13 BoogieIcfgContainer [2021-10-24 10:56:13,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:56:13,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:56:13,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:56:13,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:56:13,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:56:10" (1/3) ... [2021-10-24 10:56:13,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6838813d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:56:13, skipping insertion in model container [2021-10-24 10:56:13,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:56:11" (2/3) ... [2021-10-24 10:56:13,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6838813d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:56:13, skipping insertion in model container [2021-10-24 10:56:13,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:56:13" (3/3) ... [2021-10-24 10:56:13,434 INFO L111 eAbstractionObserver]: Analyzing ICFG thin002_rmo.i [2021-10-24 10:56:13,439 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-24 10:56:13,440 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:56:13,440 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 10:56:13,440 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-24 10:56:13,489 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,490 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,490 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,491 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,491 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,492 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,494 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,494 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,494 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,495 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,495 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,496 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,497 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,498 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,499 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,506 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,507 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,509 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,509 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,509 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,510 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,510 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,510 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,510 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,510 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,510 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,510 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,511 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,511 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,511 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,512 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,514 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,515 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,517 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,524 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,524 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,527 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,528 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,528 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,528 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,528 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,528 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,529 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,529 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,529 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,530 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,531 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,531 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,531 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,532 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,532 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,532 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,533 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,533 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,533 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,533 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,533 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,533 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,534 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,534 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,534 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,534 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,535 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,536 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,536 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,536 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,536 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,537 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,538 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,538 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,538 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,540 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,541 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,541 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,541 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,547 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,548 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,548 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,548 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,548 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,548 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,548 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,549 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~mem32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,549 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,549 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,549 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,551 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,551 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,551 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,552 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,553 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,553 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,553 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,553 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,555 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,555 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,555 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,555 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,557 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,559 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~mem29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,559 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,559 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,559 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,559 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,559 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,560 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-24 10:56:13,565 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-24 10:56:13,619 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:56:13,629 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:56:13,630 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-24 10:56:13,662 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-24 10:56:13,671 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 145 transitions, 310 flow [2021-10-24 10:56:13,673 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 145 transitions, 310 flow [2021-10-24 10:56:13,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 310 flow [2021-10-24 10:56:13,743 INFO L129 PetriNetUnfolder]: 2/141 cut-off events. [2021-10-24 10:56:13,743 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-24 10:56:13,772 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 2/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 63 event pairs, 0 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2021-10-24 10:56:13,775 INFO L116 LiptonReduction]: Number of co-enabled transitions 2472 [2021-10-24 10:56:25,593 INFO L131 LiptonReduction]: Checked pairs total: 6595 [2021-10-24 10:56:25,593 INFO L133 LiptonReduction]: Total number of compositions: 126 [2021-10-24 10:56:25,601 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 31 transitions, 82 flow [2021-10-24 10:56:25,705 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1770 states, 1769 states have (on average 3.9525155455059355) internal successors, (6992), 1769 states have internal predecessors, (6992), 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) [2021-10-24 10:56:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand has 1770 states, 1769 states have (on average 3.9525155455059355) internal successors, (6992), 1769 states have internal predecessors, (6992), 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) [2021-10-24 10:56:25,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 10:56:25,723 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:25,723 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:25,724 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:25,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:25,729 INFO L82 PathProgramCache]: Analyzing trace with hash 1535528319, now seen corresponding path program 1 times [2021-10-24 10:56:25,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:25,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868422203] [2021-10-24 10:56:25,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:25,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:25,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:25,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:25,963 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:25,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868422203] [2021-10-24 10:56:25,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868422203] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:25,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:25,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:56:25,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667607335] [2021-10-24 10:56:25,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:56:25,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:25,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:56:25,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:56:26,007 INFO L87 Difference]: Start difference. First operand has 1770 states, 1769 states have (on average 3.9525155455059355) internal successors, (6992), 1769 states have internal predecessors, (6992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:56:26,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:26,078 INFO L93 Difference]: Finished difference Result 1770 states and 6672 transitions. [2021-10-24 10:56:26,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:56:26,079 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-24 10:56:26,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:26,123 INFO L225 Difference]: With dead ends: 1770 [2021-10-24 10:56:26,123 INFO L226 Difference]: Without dead ends: 1770 [2021-10-24 10:56:26,124 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:56:26,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2021-10-24 10:56:26,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1770. [2021-10-24 10:56:26,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1769 states have (on average 3.771622385528547) internal successors, (6672), 1769 states have internal predecessors, (6672), 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) [2021-10-24 10:56:26,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 6672 transitions. [2021-10-24 10:56:26,265 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 6672 transitions. Word has length 10 [2021-10-24 10:56:26,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:26,266 INFO L470 AbstractCegarLoop]: Abstraction has 1770 states and 6672 transitions. [2021-10-24 10:56:26,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:56:26,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 6672 transitions. [2021-10-24 10:56:26,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 10:56:26,271 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:26,271 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:26,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 10:56:26,272 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:26,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:26,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1826322512, now seen corresponding path program 1 times [2021-10-24 10:56:26,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:26,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682228265] [2021-10-24 10:56:26,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:26,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:26,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:26,602 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:26,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682228265] [2021-10-24 10:56:26,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682228265] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:26,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:26,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:56:26,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513465520] [2021-10-24 10:56:26,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:56:26,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:26,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:56:26,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:56:26,605 INFO L87 Difference]: Start difference. First operand 1770 states and 6672 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2021-10-24 10:56:26,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:26,665 INFO L93 Difference]: Finished difference Result 1962 states and 7168 transitions. [2021-10-24 10:56:26,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:56:26,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 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 [2021-10-24 10:56:26,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:26,685 INFO L225 Difference]: With dead ends: 1962 [2021-10-24 10:56:26,685 INFO L226 Difference]: Without dead ends: 1642 [2021-10-24 10:56:26,686 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:56:26,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2021-10-24 10:56:26,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1642. [2021-10-24 10:56:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1641 states have (on average 3.7343083485679465) internal successors, (6128), 1641 states have internal predecessors, (6128), 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) [2021-10-24 10:56:26,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 6128 transitions. [2021-10-24 10:56:26,760 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 6128 transitions. Word has length 12 [2021-10-24 10:56:26,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:26,760 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 6128 transitions. [2021-10-24 10:56:26,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 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) [2021-10-24 10:56:26,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 6128 transitions. [2021-10-24 10:56:26,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-24 10:56:26,764 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:26,764 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:26,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 10:56:26,765 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:26,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:26,765 INFO L82 PathProgramCache]: Analyzing trace with hash -781259531, now seen corresponding path program 1 times [2021-10-24 10:56:26,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:26,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577193718] [2021-10-24 10:56:26,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:26,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:26,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:26,864 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:26,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577193718] [2021-10-24 10:56:26,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577193718] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:26,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:26,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:56:26,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091880616] [2021-10-24 10:56:26,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:56:26,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:26,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:56:26,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:56:26,866 INFO L87 Difference]: Start difference. First operand 1642 states and 6128 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-10-24 10:56:26,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:26,919 INFO L93 Difference]: Finished difference Result 1770 states and 6416 transitions. [2021-10-24 10:56:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:56:26,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2021-10-24 10:56:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:26,936 INFO L225 Difference]: With dead ends: 1770 [2021-10-24 10:56:26,937 INFO L226 Difference]: Without dead ends: 1514 [2021-10-24 10:56:26,937 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 [2021-10-24 10:56:26,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2021-10-24 10:56:26,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1514. [2021-10-24 10:56:27,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1513 states have (on average 3.690680766688698) internal successors, (5584), 1513 states have internal predecessors, (5584), 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) [2021-10-24 10:56:27,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 5584 transitions. [2021-10-24 10:56:27,070 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 5584 transitions. Word has length 13 [2021-10-24 10:56:27,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:27,070 INFO L470 AbstractCegarLoop]: Abstraction has 1514 states and 5584 transitions. [2021-10-24 10:56:27,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-10-24 10:56:27,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 5584 transitions. [2021-10-24 10:56:27,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-24 10:56:27,073 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:27,073 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:27,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-24 10:56:27,073 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:27,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:27,074 INFO L82 PathProgramCache]: Analyzing trace with hash 217452028, now seen corresponding path program 1 times [2021-10-24 10:56:27,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:27,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353463243] [2021-10-24 10:56:27,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:27,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:27,149 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:27,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353463243] [2021-10-24 10:56:27,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353463243] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:27,150 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:27,150 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 10:56:27,150 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998103449] [2021-10-24 10:56:27,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:56:27,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:27,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:56:27,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:56:27,152 INFO L87 Difference]: Start difference. First operand 1514 states and 5584 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) 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) [2021-10-24 10:56:27,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:27,191 INFO L93 Difference]: Finished difference Result 1610 states and 5792 transitions. [2021-10-24 10:56:27,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:56:27,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) 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 [2021-10-24 10:56:27,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:27,207 INFO L225 Difference]: With dead ends: 1610 [2021-10-24 10:56:27,207 INFO L226 Difference]: Without dead ends: 1418 [2021-10-24 10:56:27,208 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:56:27,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2021-10-24 10:56:27,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1418. [2021-10-24 10:56:27,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1418 states, 1417 states have (on average 3.658433309809457) internal successors, (5184), 1417 states have internal predecessors, (5184), 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) [2021-10-24 10:56:27,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 5184 transitions. [2021-10-24 10:56:27,270 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 5184 transitions. Word has length 14 [2021-10-24 10:56:27,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:27,270 INFO L470 AbstractCegarLoop]: Abstraction has 1418 states and 5184 transitions. [2021-10-24 10:56:27,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) 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) [2021-10-24 10:56:27,271 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 5184 transitions. [2021-10-24 10:56:27,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-24 10:56:27,274 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:27,274 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:27,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-24 10:56:27,274 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:27,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:27,275 INFO L82 PathProgramCache]: Analyzing trace with hash 86605288, now seen corresponding path program 1 times [2021-10-24 10:56:27,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:27,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343792035] [2021-10-24 10:56:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:27,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:27,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:27,360 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:27,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343792035] [2021-10-24 10:56:27,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343792035] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:27,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:27,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:56:27,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059181344] [2021-10-24 10:56:27,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:56:27,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:27,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:56:27,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:56:27,363 INFO L87 Difference]: Start difference. First operand 1418 states and 5184 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2021-10-24 10:56:27,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:27,430 INFO L93 Difference]: Finished difference Result 1874 states and 6694 transitions. [2021-10-24 10:56:27,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:56:27,430 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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 [2021-10-24 10:56:27,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:27,440 INFO L225 Difference]: With dead ends: 1874 [2021-10-24 10:56:27,440 INFO L226 Difference]: Without dead ends: 914 [2021-10-24 10:56:27,441 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 34.2ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:56:27,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2021-10-24 10:56:27,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 914. [2021-10-24 10:56:27,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 913 states have (on average 3.380065717415115) internal successors, (3086), 913 states have internal predecessors, (3086), 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) [2021-10-24 10:56:27,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 3086 transitions. [2021-10-24 10:56:27,519 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 3086 transitions. Word has length 15 [2021-10-24 10:56:27,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:27,520 INFO L470 AbstractCegarLoop]: Abstraction has 914 states and 3086 transitions. [2021-10-24 10:56:27,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2021-10-24 10:56:27,520 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 3086 transitions. [2021-10-24 10:56:27,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-24 10:56:27,522 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:27,522 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:27,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-24 10:56:27,523 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:27,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:27,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1802475014, now seen corresponding path program 1 times [2021-10-24 10:56:27,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:27,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412766005] [2021-10-24 10:56:27,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:27,524 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:27,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:27,605 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:27,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412766005] [2021-10-24 10:56:27,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412766005] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:27,609 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:27,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:56:27,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498772983] [2021-10-24 10:56:27,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:56:27,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:27,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:56:27,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:56:27,611 INFO L87 Difference]: Start difference. First operand 914 states and 3086 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:56:27,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:27,668 INFO L93 Difference]: Finished difference Result 1232 states and 4047 transitions. [2021-10-24 10:56:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:56:27,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-24 10:56:27,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:27,673 INFO L225 Difference]: With dead ends: 1232 [2021-10-24 10:56:27,674 INFO L226 Difference]: Without dead ends: 500 [2021-10-24 10:56:27,675 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:56:27,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-10-24 10:56:27,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2021-10-24 10:56:27,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 499 states have (on average 3.062124248496994) internal successors, (1528), 499 states have internal predecessors, (1528), 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) [2021-10-24 10:56:27,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 1528 transitions. [2021-10-24 10:56:27,702 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 1528 transitions. Word has length 16 [2021-10-24 10:56:27,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:27,702 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 1528 transitions. [2021-10-24 10:56:27,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:56:27,703 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 1528 transitions. [2021-10-24 10:56:27,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:56:27,705 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:27,705 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:27,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-24 10:56:27,705 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:27,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:27,706 INFO L82 PathProgramCache]: Analyzing trace with hash -2081494554, now seen corresponding path program 1 times [2021-10-24 10:56:27,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:27,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838012796] [2021-10-24 10:56:27,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:27,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:27,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:27,840 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:27,841 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838012796] [2021-10-24 10:56:27,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838012796] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:27,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:27,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:56:27,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341227710] [2021-10-24 10:56:27,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:56:27,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:27,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:56:27,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:56:27,843 INFO L87 Difference]: Start difference. First operand 500 states and 1528 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2021-10-24 10:56:27,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:27,895 INFO L93 Difference]: Finished difference Result 612 states and 1852 transitions. [2021-10-24 10:56:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:56:27,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 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 [2021-10-24 10:56:27,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:27,898 INFO L225 Difference]: With dead ends: 612 [2021-10-24 10:56:27,899 INFO L226 Difference]: Without dead ends: 300 [2021-10-24 10:56:27,899 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 30.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:56:27,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-10-24 10:56:27,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2021-10-24 10:56:27,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 299 states have (on average 2.809364548494983) internal successors, (840), 299 states have internal predecessors, (840), 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) [2021-10-24 10:56:27,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 840 transitions. [2021-10-24 10:56:27,910 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 840 transitions. Word has length 18 [2021-10-24 10:56:27,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:27,911 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 840 transitions. [2021-10-24 10:56:27,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 4 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) [2021-10-24 10:56:27,911 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 840 transitions. [2021-10-24 10:56:27,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:56:27,912 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:27,912 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:27,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-24 10:56:27,913 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:27,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:27,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1155697134, now seen corresponding path program 1 times [2021-10-24 10:56:27,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:27,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915425590] [2021-10-24 10:56:27,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:27,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:28,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:28,334 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:28,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915425590] [2021-10-24 10:56:28,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915425590] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:28,335 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:28,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:56:28,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099871743] [2021-10-24 10:56:28,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 10:56:28,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:28,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 10:56:28,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:56:28,337 INFO L87 Difference]: Start difference. First operand 300 states and 840 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-10-24 10:56:28,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:28,509 INFO L93 Difference]: Finished difference Result 316 states and 864 transitions. [2021-10-24 10:56:28,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:56:28,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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 19 [2021-10-24 10:56:28,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:28,512 INFO L225 Difference]: With dead ends: 316 [2021-10-24 10:56:28,513 INFO L226 Difference]: Without dead ends: 284 [2021-10-24 10:56:28,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 154.6ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:56:28,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-10-24 10:56:28,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 284. [2021-10-24 10:56:28,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 2.7703180212014136) internal successors, (784), 283 states have internal predecessors, (784), 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) [2021-10-24 10:56:28,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 784 transitions. [2021-10-24 10:56:28,523 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 784 transitions. Word has length 19 [2021-10-24 10:56:28,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:28,523 INFO L470 AbstractCegarLoop]: Abstraction has 284 states and 784 transitions. [2021-10-24 10:56:28,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2021-10-24 10:56:28,523 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 784 transitions. [2021-10-24 10:56:28,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-24 10:56:28,525 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:28,525 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:28,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-24 10:56:28,525 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:28,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:28,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1466771758, now seen corresponding path program 1 times [2021-10-24 10:56:28,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:28,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097886967] [2021-10-24 10:56:28,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:28,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:28,616 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:28,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097886967] [2021-10-24 10:56:28,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097886967] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:28,617 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:28,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-24 10:56:28,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997234296] [2021-10-24 10:56:28,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:56:28,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:28,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:56:28,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:56:28,619 INFO L87 Difference]: Start difference. First operand 284 states and 784 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-10-24 10:56:28,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:28,646 INFO L93 Difference]: Finished difference Result 314 states and 814 transitions. [2021-10-24 10:56:28,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:56:28,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-10-24 10:56:28,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:28,649 INFO L225 Difference]: With dead ends: 314 [2021-10-24 10:56:28,649 INFO L226 Difference]: Without dead ends: 260 [2021-10-24 10:56:28,649 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:56:28,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-10-24 10:56:28,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2021-10-24 10:56:28,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 2.6563706563706564) internal successors, (688), 259 states have internal predecessors, (688), 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) [2021-10-24 10:56:28,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 688 transitions. [2021-10-24 10:56:28,658 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 688 transitions. Word has length 20 [2021-10-24 10:56:28,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:28,658 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 688 transitions. [2021-10-24 10:56:28,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-10-24 10:56:28,658 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 688 transitions. [2021-10-24 10:56:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-24 10:56:28,660 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:28,660 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:28,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-24 10:56:28,660 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:28,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:28,661 INFO L82 PathProgramCache]: Analyzing trace with hash -189911505, now seen corresponding path program 1 times [2021-10-24 10:56:28,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:28,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481491532] [2021-10-24 10:56:28,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:28,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:28,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:28,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:28,747 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:28,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481491532] [2021-10-24 10:56:28,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481491532] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:28,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:28,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-24 10:56:28,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931171143] [2021-10-24 10:56:28,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:56:28,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:28,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:56:28,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:56:28,750 INFO L87 Difference]: Start difference. First operand 260 states and 688 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:56:28,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:28,794 INFO L93 Difference]: Finished difference Result 252 states and 603 transitions. [2021-10-24 10:56:28,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:56:28,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-10-24 10:56:28,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:28,797 INFO L225 Difference]: With dead ends: 252 [2021-10-24 10:56:28,797 INFO L226 Difference]: Without dead ends: 208 [2021-10-24 10:56:28,798 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:56:28,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-10-24 10:56:28,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2021-10-24 10:56:28,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 2.396135265700483) internal successors, (496), 207 states have internal predecessors, (496), 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) [2021-10-24 10:56:28,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 496 transitions. [2021-10-24 10:56:28,804 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 496 transitions. Word has length 21 [2021-10-24 10:56:28,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:28,805 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 496 transitions. [2021-10-24 10:56:28,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:56:28,805 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 496 transitions. [2021-10-24 10:56:28,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-24 10:56:28,806 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:28,806 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:28,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-24 10:56:28,807 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:28,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:28,807 INFO L82 PathProgramCache]: Analyzing trace with hash 833812094, now seen corresponding path program 1 times [2021-10-24 10:56:28,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:28,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252707276] [2021-10-24 10:56:28,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:28,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:28,947 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:28,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252707276] [2021-10-24 10:56:28,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252707276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:28,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:28,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-24 10:56:28,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559792267] [2021-10-24 10:56:28,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:56:28,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:28,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:56:28,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:56:28,949 INFO L87 Difference]: Start difference. First operand 208 states and 496 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-24 10:56:28,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:28,989 INFO L93 Difference]: Finished difference Result 181 states and 400 transitions. [2021-10-24 10:56:28,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 10:56:28,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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 22 [2021-10-24 10:56:28,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:28,991 INFO L225 Difference]: With dead ends: 181 [2021-10-24 10:56:28,992 INFO L226 Difference]: Without dead ends: 156 [2021-10-24 10:56:28,992 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.0ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:56:28,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-24 10:56:28,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2021-10-24 10:56:28,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 2.2193548387096773) internal successors, (344), 155 states have internal predecessors, (344), 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) [2021-10-24 10:56:28,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 344 transitions. [2021-10-24 10:56:28,997 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 344 transitions. Word has length 22 [2021-10-24 10:56:28,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:28,998 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 344 transitions. [2021-10-24 10:56:28,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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) [2021-10-24 10:56:28,998 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 344 transitions. [2021-10-24 10:56:28,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-24 10:56:28,999 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:28,999 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:28,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-24 10:56:28,999 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:29,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:29,000 INFO L82 PathProgramCache]: Analyzing trace with hash 76432713, now seen corresponding path program 1 times [2021-10-24 10:56:29,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:29,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601760150] [2021-10-24 10:56:29,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:29,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:56:29,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:56:29,088 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 10:56:29,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601760150] [2021-10-24 10:56:29,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601760150] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 10:56:29,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:56:29,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-24 10:56:29,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573335154] [2021-10-24 10:56:29,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-24 10:56:29,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 10:56:29,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-24 10:56:29,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:56:29,090 INFO L87 Difference]: Start difference. First operand 156 states and 344 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:56:29,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:56:29,141 INFO L93 Difference]: Finished difference Result 140 states and 310 transitions. [2021-10-24 10:56:29,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 10:56:29,142 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-10-24 10:56:29,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:56:29,143 INFO L225 Difference]: With dead ends: 140 [2021-10-24 10:56:29,144 INFO L226 Difference]: Without dead ends: 132 [2021-10-24 10:56:29,144 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.9ms TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:56:29,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-10-24 10:56:29,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2021-10-24 10:56:29,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 2.2595419847328246) internal successors, (296), 131 states have internal predecessors, (296), 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) [2021-10-24 10:56:29,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 296 transitions. [2021-10-24 10:56:29,148 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 296 transitions. Word has length 23 [2021-10-24 10:56:29,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:56:29,149 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 296 transitions. [2021-10-24 10:56:29,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:56:29,149 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 296 transitions. [2021-10-24 10:56:29,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 10:56:29,150 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:56:29,150 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:56:29,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-24 10:56:29,151 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-10-24 10:56:29,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:56:29,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1626686384, now seen corresponding path program 1 times [2021-10-24 10:56:29,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 10:56:29,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877088058] [2021-10-24 10:56:29,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:56:29,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 10:56:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:56:29,210 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:56:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:56:29,304 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 10:56:29,305 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:56:29,306 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:56:29,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-24 10:56:29,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-24 10:56:29,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-24 10:56:29,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-24 10:56:29,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-24 10:56:29,313 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-24 10:56:29,313 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:56:29,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:56:29 BasicIcfg [2021-10-24 10:56:29,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:56:29,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:56:29,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:56:29,487 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:56:29,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:56:13" (3/4) ... [2021-10-24 10:56:29,489 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:56:29,650 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:56:29,651 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:56:29,652 INFO L168 Benchmark]: Toolchain (without parser) took 18938.37 ms. Allocated memory was 88.1 MB in the beginning and 224.4 MB in the end (delta: 136.3 MB). Free memory was 50.4 MB in the beginning and 133.0 MB in the end (delta: -82.6 MB). Peak memory consumption was 53.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:56:29,653 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 88.1 MB. Free memory was 68.3 MB in the beginning and 68.2 MB in the end (delta: 58.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:56:29,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.67 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 50.2 MB in the beginning and 77.1 MB in the end (delta: -26.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:56:29,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.73 ms. Allocated memory is still 113.2 MB. Free memory was 77.1 MB in the beginning and 74.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:56:29,654 INFO L168 Benchmark]: Boogie Preprocessor took 51.29 ms. Allocated memory is still 113.2 MB. Free memory was 74.6 MB in the beginning and 72.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:56:29,655 INFO L168 Benchmark]: RCFGBuilder took 1852.50 ms. Allocated memory is still 113.2 MB. Free memory was 72.5 MB in the beginning and 67.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. [2021-10-24 10:56:29,655 INFO L168 Benchmark]: TraceAbstraction took 16062.09 ms. Allocated memory was 113.2 MB in the beginning and 224.4 MB in the end (delta: 111.1 MB). Free memory was 66.6 MB in the beginning and 162.3 MB in the end (delta: -95.7 MB). Peak memory consumption was 118.7 MB. Max. memory is 16.1 GB. [2021-10-24 10:56:29,655 INFO L168 Benchmark]: Witness Printer took 164.55 ms. Allocated memory is still 224.4 MB. Free memory was 162.3 MB in the beginning and 133.0 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:56:29,660 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 88.1 MB. Free memory was 68.3 MB in the beginning and 68.2 MB in the end (delta: 58.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 713.67 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 50.2 MB in the beginning and 77.1 MB in the end (delta: -26.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.73 ms. Allocated memory is still 113.2 MB. Free memory was 77.1 MB in the beginning and 74.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.29 ms. Allocated memory is still 113.2 MB. Free memory was 74.6 MB in the beginning and 72.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1852.50 ms. Allocated memory is still 113.2 MB. Free memory was 72.5 MB in the beginning and 67.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 38.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16062.09 ms. Allocated memory was 113.2 MB in the beginning and 224.4 MB in the end (delta: 111.1 MB). Free memory was 66.6 MB in the beginning and 162.3 MB in the end (delta: -95.7 MB). Peak memory consumption was 118.7 MB. Max. memory is 16.1 GB. * Witness Printer took 164.55 ms. Allocated memory is still 224.4 MB. Free memory was 162.3 MB in the beginning and 133.0 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11921.0ms, 156 PlacesBefore, 43 PlacesAfterwards, 145 TransitionsBefore, 31 TransitionsAfterwards, 2472 CoEnabledTransitionPairs, 8 FixpointIterations, 63 TrivialSequentialCompositions, 53 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 126 TotalNumberOfCompositions, 6595 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3222, positive: 2981, positive conditional: 0, positive unconditional: 2981, negative: 241, negative conditional: 0, negative unconditional: 241, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1695, positive: 1639, positive conditional: 0, positive unconditional: 1639, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1695, positive: 1615, positive conditional: 0, positive unconditional: 1615, negative: 80, negative conditional: 0, negative unconditional: 80, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 80, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 56, negative conditional: 0, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 549, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 508, negative conditional: 0, negative unconditional: 508, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3222, positive: 1342, positive conditional: 0, positive unconditional: 1342, negative: 185, negative conditional: 0, negative unconditional: 185, unknown: 1695, unknown conditional: 0, unknown unconditional: 1695] , Statistics on independence cache: Total cache size (in pairs): 180, Positive cache size: 154, Positive conditional cache size: 0, Positive unconditional cache size: 154, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26 - 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: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L711] 0 int __unbuffered_cnt = 0; [L713] 0 int __unbuffered_p0_EAX = 0; [L714] 0 _Bool __unbuffered_p0_EAX$flush_delayed; [L715] 0 int __unbuffered_p0_EAX$mem_tmp; [L716] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd0; [L717] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd1; [L718] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd2; [L719] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd3; [L720] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd4; [L721] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd0; [L722] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd1; [L723] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd2; [L724] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd3; [L725] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd4; [L726] 0 _Bool __unbuffered_p0_EAX$read_delayed; [L727] 0 int *__unbuffered_p0_EAX$read_delayed_var; [L728] 0 int __unbuffered_p0_EAX$w_buff0; [L729] 0 _Bool __unbuffered_p0_EAX$w_buff0_used; [L730] 0 int __unbuffered_p0_EAX$w_buff1; [L731] 0 _Bool __unbuffered_p0_EAX$w_buff1_used; [L733] 0 int __unbuffered_p1_EAX = 0; [L735] 0 int __unbuffered_p2_EAX = 0; [L737] 0 int __unbuffered_p3_EAX = 0; [L739] 0 int a = 0; [L740] 0 _Bool a$flush_delayed; [L741] 0 int a$mem_tmp; [L742] 0 _Bool a$r_buff0_thd0; [L743] 0 _Bool a$r_buff0_thd1; [L744] 0 _Bool a$r_buff0_thd2; [L745] 0 _Bool a$r_buff0_thd3; [L746] 0 _Bool a$r_buff0_thd4; [L747] 0 _Bool a$r_buff1_thd0; [L748] 0 _Bool a$r_buff1_thd1; [L749] 0 _Bool a$r_buff1_thd2; [L750] 0 _Bool a$r_buff1_thd3; [L751] 0 _Bool a$r_buff1_thd4; [L752] 0 _Bool a$read_delayed; [L753] 0 int *a$read_delayed_var; [L754] 0 int a$w_buff0; [L755] 0 _Bool a$w_buff0_used; [L756] 0 int a$w_buff1; [L757] 0 _Bool a$w_buff1_used; [L758] 0 _Bool main$tmp_guard0; [L759] 0 _Bool main$tmp_guard1; [L761] 0 int x = 0; [L763] 0 int y = 0; [L765] 0 int z = 0; [L766] 0 _Bool weak$$choice0; [L767] 0 _Bool weak$$choice1; [L768] 0 _Bool weak$$choice2; [L860] 0 pthread_t t2721; [L861] FCALL, FORK 0 pthread_create(&t2721, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z=0] [L772] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L773] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L774] 1 a$flush_delayed = weak$$choice2 [L775] EXPR 1 \read(a) [L775] 1 a$mem_tmp = a [L776] EXPR 1 !a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a : (a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : a$w_buff1) [L776] EXPR 1 \read(a) [L776] EXPR 1 !a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a : (a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : a$w_buff1) [L776] 1 a = !a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a : (a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : a$w_buff1) [L777] EXPR 1 weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : a$w_buff0)) [L777] EXPR 1 !a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : a$w_buff0) [L777] EXPR 1 weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : a$w_buff0)) [L777] 1 a$w_buff0 = weak$$choice2 ? a$w_buff0 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff0 : (a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff0 : a$w_buff0)) [L778] EXPR 1 weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff1 : a$w_buff1)) [L778] EXPR 1 !a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff1 : a$w_buff1) [L778] EXPR 1 weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff1 : a$w_buff1)) [L778] 1 a$w_buff1 = weak$$choice2 ? a$w_buff1 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff1 : (a$w_buff0_used && a$r_buff0_thd1 ? a$w_buff1 : a$w_buff1)) [L779] EXPR 1 weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used)) [L779] EXPR 1 !a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used) [L779] EXPR 1 weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used)) [L779] 1 a$w_buff0_used = weak$$choice2 ? a$w_buff0_used : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff0_used : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$w_buff0_used)) [L780] EXPR 1 weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L780] EXPR 1 !a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L780] EXPR 1 weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L780] 1 a$w_buff1_used = weak$$choice2 ? a$w_buff1_used : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$w_buff1_used : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L781] EXPR 1 weak$$choice2 ? a$r_buff0_thd1 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$r_buff0_thd1 : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1)) [L781] EXPR 1 !a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$r_buff0_thd1 : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1) [L781] EXPR 1 weak$$choice2 ? a$r_buff0_thd1 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$r_buff0_thd1 : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1)) [L781] 1 a$r_buff0_thd1 = weak$$choice2 ? a$r_buff0_thd1 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$r_buff0_thd1 : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : a$r_buff0_thd1)) [L782] EXPR 1 weak$$choice2 ? a$r_buff1_thd1 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$r_buff1_thd1 : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L782] EXPR 1 !a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$r_buff1_thd1 : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : (_Bool)0) [L782] EXPR 1 weak$$choice2 ? a$r_buff1_thd1 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$r_buff1_thd1 : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L782] 1 a$r_buff1_thd1 = weak$$choice2 ? a$r_buff1_thd1 : (!a$w_buff0_used || !a$r_buff0_thd1 && !a$w_buff1_used || !a$r_buff0_thd1 && !a$r_buff1_thd1 ? a$r_buff1_thd1 : (a$w_buff0_used && a$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L783] 1 __unbuffered_p0_EAX$read_delayed = (_Bool)1 [L784] 1 __unbuffered_p0_EAX$read_delayed_var = &a [L785] EXPR 1 \read(a) [L785] 1 __unbuffered_p0_EAX = a [L786] EXPR 1 a$flush_delayed ? a$mem_tmp : a [L786] EXPR 1 \read(a) [L786] EXPR 1 a$flush_delayed ? a$mem_tmp : a [L786] 1 a = a$flush_delayed ? a$mem_tmp : a [L787] 1 a$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z=0] [L790] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=0, weak$$choice2=0, x=1, y=0, z=0] [L795] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L797] 1 return 0; [L862] 0 pthread_t t2722; [L863] FCALL, FORK 0 pthread_create(&t2722, ((void *)0), P1, ((void *)0)) VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=0, weak$$choice2=0, x=1, y=0, z=0] [L802] 2 __unbuffered_p1_EAX = x VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=0, weak$$choice2=0, x=1, y=0, z=0] [L864] 0 pthread_t t2723; [L865] FCALL, FORK 0 pthread_create(&t2723, ((void *)0), P2, ((void *)0)) VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=0, weak$$choice2=0, x=1, y=0, z=0] [L866] 0 pthread_t t2724; [L805] 2 y = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, __unbuffered_p3_EAX=0, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=0, weak$$choice2=0, x=1, y=1, z=0] [L817] 3 __unbuffered_p2_EAX = y VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX=0, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=0, weak$$choice2=0, x=1, y=1, z=0] [L820] 3 z = 1 VAL [\result={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX=0, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=0, weak$$choice2=0, x=1, y=1, z=1] [L825] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L827] 3 return 0; [L810] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L812] 2 return 0; [L867] FCALL, FORK 0 pthread_create(&t2724, ((void *)0), P3, ((void *)0)) VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX=0, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=0, weak$$choice2=0, x=1, y=1, z=1] [L832] 4 __unbuffered_p3_EAX = z VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX=1, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=0, weak$$choice2=0, x=1, y=1, z=1] [L835] 4 a = 1 VAL [\result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX=1, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=0, weak$$choice2=0, x=1, y=1, z=1] [L838] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L838] EXPR 4 a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a [L838] EXPR 4 \read(a) [L838] EXPR 4 a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a [L838] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L838] 4 a = a$w_buff0_used && a$r_buff0_thd4 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd4 ? a$w_buff1 : a) [L839] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used [L839] 4 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$w_buff0_used [L840] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$w_buff1_used [L840] 4 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$w_buff1_used [L841] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4 [L841] 4 a$r_buff0_thd4 = a$w_buff0_used && a$r_buff0_thd4 ? (_Bool)0 : a$r_buff0_thd4 [L842] EXPR 4 a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$r_buff1_thd4 [L842] 4 a$r_buff1_thd4 = a$w_buff0_used && a$r_buff0_thd4 || a$w_buff1_used && a$r_buff1_thd4 ? (_Bool)0 : a$r_buff1_thd4 [L845] 4 __unbuffered_cnt = __unbuffered_cnt + 1 [L847] 4 return 0; [L869] 0 main$tmp_guard0 = __unbuffered_cnt == 4 [L4] COND FALSE 0 !(!cond) [L873] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L873] EXPR 0 a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a [L873] EXPR 0 \read(a) [L873] EXPR 0 a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a [L873] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L873] 0 a = a$w_buff0_used && a$r_buff0_thd0 ? a$w_buff0 : (a$w_buff1_used && a$r_buff1_thd0 ? a$w_buff1 : a) [L874] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L874] 0 a$w_buff0_used = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$w_buff0_used [L875] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L875] 0 a$w_buff1_used = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$w_buff1_used [L876] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L876] 0 a$r_buff0_thd0 = a$w_buff0_used && a$r_buff0_thd0 ? (_Bool)0 : a$r_buff0_thd0 [L877] EXPR 0 a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 [L877] 0 a$r_buff1_thd0 = a$w_buff0_used && a$r_buff0_thd0 || a$w_buff1_used && a$r_buff1_thd0 ? (_Bool)0 : a$r_buff1_thd0 [L880] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L881] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L881] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L881] EXPR 0 \read(*__unbuffered_p0_EAX$read_delayed_var) [L881] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L881] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L881] 0 __unbuffered_p0_EAX = __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L882] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p1_EAX == 1 && __unbuffered_p2_EAX == 1 && __unbuffered_p3_EAX == 1) VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX=1, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z=1] [L19] COND TRUE 0 !expression [L19] 0 reach_error() VAL [\result={0:0}, \result={0:0}, \result={0:0}, \result={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={6:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, __unbuffered_p3_EAX=1, a={6:0}, a$flush_delayed=0, a$mem_tmp=0, a$r_buff0_thd0=0, a$r_buff0_thd1=0, a$r_buff0_thd2=0, a$r_buff0_thd3=0, a$r_buff0_thd4=0, a$r_buff1_thd0=0, a$r_buff1_thd1=0, a$r_buff1_thd2=0, a$r_buff1_thd3=0, a$r_buff1_thd4=0, a$read_delayed=0, a$read_delayed_var={0:0}, a$w_buff0=0, a$w_buff0_used=0, a$w_buff1=0, a$w_buff1_used=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=4, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z=1] - UnprovableResult [Line: 863]: 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: 865]: 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: 867]: 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: 861]: 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 9 procedures, 177 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 15693.9ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 39.2ms, AutomataDifference: 908.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12064.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 359 SDtfs, 507 SDslu, 633 SDs, 0 SdLazy, 244 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 252.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 351.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1770occurred in iteration=0, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 545.4ms AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 109.4ms SsaConstructionTime, 556.1ms SatisfiabilityAnalysisTime, 1091.5ms InterpolantComputationTime, 228 NumberOfCodeBlocks, 228 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 191 ConstructedInterpolants, 0 QuantifiedInterpolants, 1035 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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! [2021-10-24 10:56:29,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76ed41ea-693d-4016-a010-5adb6a8cbf6a/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...