./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f0c41cc4bbd081542690b2b24113aecb06bc89521cb806ea9d2ea12042870bc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:51:19,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:51:19,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:51:19,563 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:51:19,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:51:19,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:51:19,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:51:19,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:51:19,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:51:19,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:51:19,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:51:19,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:51:19,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:51:19,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:51:19,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:51:19,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:51:19,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:51:19,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:51:19,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:51:19,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:51:19,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:51:19,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:51:19,631 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:51:19,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:51:19,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:51:19,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:51:19,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:51:19,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:51:19,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:51:19,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:51:19,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:51:19,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:51:19,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:51:19,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:51:19,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:51:19,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:51:19,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:51:19,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:51:19,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:51:19,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:51:19,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:51:19,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 05:51:19,718 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:51:19,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:51:19,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:51:19,720 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:51:19,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:51:19,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:51:19,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:51:19,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:51:19,723 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:51:19,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:51:19,725 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:51:19,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:51:19,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:51:19,726 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:51:19,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:51:19,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:51:19,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:51:19,727 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:51:19,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:51:19,728 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:51:19,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:51:19,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:51:19,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:51:19,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:51:19,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:51:19,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:51:19,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:51:19,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:51:19,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:51:19,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:51:19,733 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 05:51:19,733 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 05:51:19,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:51:19,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:51:19,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f0c41cc4bbd081542690b2b24113aecb06bc89521cb806ea9d2ea12042870bc [2021-11-20 05:51:20,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:51:20,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:51:20,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:51:20,129 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:51:20,130 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:51:20,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i [2021-11-20 05:51:20,236 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/data/f1637aa95/4fd8160914844014b83e2665d051a97e/FLAG433159071 [2021-11-20 05:51:20,831 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:51:20,832 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/sv-benchmarks/c/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i [2021-11-20 05:51:20,862 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/data/f1637aa95/4fd8160914844014b83e2665d051a97e/FLAG433159071 [2021-11-20 05:51:21,102 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/data/f1637aa95/4fd8160914844014b83e2665d051a97e [2021-11-20 05:51:21,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:51:21,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:51:21,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:51:21,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:51:21,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:51:21,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:21,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14064b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21, skipping insertion in model container [2021-11-20 05:51:21,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:21,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:51:21,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:51:21,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/sv-benchmarks/c/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i[964,977] [2021-11-20 05:51:21,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:51:21,744 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:51:21,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/sv-benchmarks/c/pthread-wmm/mix052_pso.opt_rmo.opt_tso.opt.i[964,977] [2021-11-20 05:51:21,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:51:21,886 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:51:21,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21 WrapperNode [2021-11-20 05:51:21,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:51:21,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:51:21,888 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:51:21,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:51:21,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:21,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:21,956 INFO L137 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 176 [2021-11-20 05:51:21,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:51:21,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:51:21,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:51:21,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:51:21,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:21,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:21,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:21,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:22,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:22,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:22,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:22,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:51:22,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:51:22,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:51:22,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:51:22,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21" (1/1) ... [2021-11-20 05:51:22,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:51:22,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:51:22,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:51:22,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:51:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:51:22,131 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-20 05:51:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:51:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:51:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:51:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-11-20 05:51:22,132 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-11-20 05:51:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-11-20 05:51:22,132 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-11-20 05:51:22,132 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-11-20 05:51:22,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-11-20 05:51:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:51:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-20 05:51:22,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:51:22,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:51:22,135 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 05:51:22,281 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:51:22,284 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:51:23,003 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:51:23,490 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:51:23,490 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 05:51:23,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:51:23 BoogieIcfgContainer [2021-11-20 05:51:23,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:51:23,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:51:23,497 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:51:23,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:51:23,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:51:21" (1/3) ... [2021-11-20 05:51:23,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c3c076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:51:23, skipping insertion in model container [2021-11-20 05:51:23,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:51:21" (2/3) ... [2021-11-20 05:51:23,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c3c076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:51:23, skipping insertion in model container [2021-11-20 05:51:23,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:51:23" (3/3) ... [2021-11-20 05:51:23,507 INFO L111 eAbstractionObserver]: Analyzing ICFG mix052_pso.opt_rmo.opt_tso.opt.i [2021-11-20 05:51:23,514 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 05:51:23,514 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:51:23,514 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 05:51:23,514 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 05:51:23,556 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,556 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,556 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,557 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,557 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,557 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,557 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,558 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,558 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,558 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,559 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,559 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,559 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,560 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,560 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,560 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,560 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,561 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,561 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,561 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,561 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,562 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,562 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,562 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,562 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,563 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,563 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,563 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,563 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,564 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,564 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,564 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,564 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,564 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,565 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,565 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,565 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,565 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,566 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,566 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,566 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,566 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,567 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,567 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,567 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,567 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,568 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,568 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,568 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,568 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,568 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,569 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,569 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,569 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,569 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,570 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,570 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,570 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,572 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,572 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,573 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,573 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,573 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,573 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,574 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,574 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,574 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,574 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,575 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,575 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,575 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,575 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,576 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,576 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,576 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,576 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,577 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,577 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,577 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,577 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,578 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,578 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,578 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,578 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,578 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,579 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,579 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,579 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,580 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,580 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,580 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,580 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,580 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,581 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,581 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,581 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,584 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,584 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,584 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,585 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,585 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,585 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,586 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,586 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,586 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,586 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,587 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,587 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,587 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,587 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,588 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,588 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,588 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,588 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,589 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,589 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,589 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,590 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,590 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,590 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,590 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,591 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,591 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,591 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,592 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,592 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,592 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,592 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,593 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,593 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,594 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,594 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,594 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,594 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,598 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,598 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,599 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,599 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,599 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,600 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,600 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,600 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,600 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,601 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,601 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,601 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,601 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,602 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,602 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,602 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,602 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,603 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,603 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,603 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,603 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,604 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,604 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,604 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,605 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,605 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,605 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,606 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite28#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,607 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite27#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,607 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite29#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,607 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite30#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,608 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,608 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,608 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,608 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite31#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,609 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,609 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,609 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite26#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,609 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,610 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,611 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,611 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,611 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 05:51:23,612 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-11-20 05:51:23,671 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:51:23,680 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:51:23,680 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-20 05:51:23,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 113 transitions, 241 flow [2021-11-20 05:51:23,755 INFO L129 PetriNetUnfolder]: 2/110 cut-off events. [2021-11-20 05:51:23,755 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:51:23,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2021-11-20 05:51:23,765 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 113 transitions, 241 flow [2021-11-20 05:51:23,772 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 110 transitions, 229 flow [2021-11-20 05:51:23,801 INFO L129 PetriNetUnfolder]: 0/73 cut-off events. [2021-11-20 05:51:23,801 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 05:51:23,801 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:51:23,802 INFO L254 CegarLoopForPetriNet]: 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:23,803 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-20 05:51:23,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:23,814 INFO L85 PathProgramCache]: Analyzing trace with hash -643770443, now seen corresponding path program 1 times [2021-11-20 05:51:23,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:23,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520489285] [2021-11-20 05:51:23,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:23,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:24,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:24,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:24,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520489285] [2021-11-20 05:51:24,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520489285] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:24,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:24,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:51:24,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637772834] [2021-11-20 05:51:24,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:24,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:51:24,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:24,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:51:24,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:51:24,358 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 113 [2021-11-20 05:51:24,373 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 110 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:24,374 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:51:24,374 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 113 [2021-11-20 05:51:24,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:51:24,557 INFO L129 PetriNetUnfolder]: 10/178 cut-off events. [2021-11-20 05:51:24,561 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-11-20 05:51:24,564 INFO L84 FinitePrefix]: Finished finitePrefix Result has 217 conditions, 178 events. 10/178 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 339 event pairs, 4 based on Foata normal form. 5/174 useless extension candidates. Maximal degree in co-relation 165. Up to 17 conditions per place. [2021-11-20 05:51:24,567 INFO L132 encePairwiseOnDemand]: 108/113 looper letters, 8 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2021-11-20 05:51:24,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 108 transitions, 245 flow [2021-11-20 05:51:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:51:24,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 05:51:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2021-11-20 05:51:24,589 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9380530973451328 [2021-11-20 05:51:24,590 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 318 transitions. [2021-11-20 05:51:24,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 318 transitions. [2021-11-20 05:51:24,592 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:51:24,595 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 318 transitions. [2021-11-20 05:51:24,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:24,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:24,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 113.0) internal successors, (452), 4 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:24,610 INFO L186 Difference]: Start difference. First operand has 118 places, 110 transitions, 229 flow. Second operand 3 states and 318 transitions. [2021-11-20 05:51:24,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 108 transitions, 245 flow [2021-11-20 05:51:24,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 108 transitions, 242 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-11-20 05:51:24,630 INFO L242 Difference]: Finished difference. Result has 115 places, 106 transitions, 222 flow [2021-11-20 05:51:24,633 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=115, PETRI_TRANSITIONS=106} [2021-11-20 05:51:24,640 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, -3 predicate places. [2021-11-20 05:51:24,641 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 106 transitions, 222 flow [2021-11-20 05:51:24,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:24,642 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:51:24,643 INFO L254 CegarLoopForPetriNet]: 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:24,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:51:24,644 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-20 05:51:24,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:24,646 INFO L85 PathProgramCache]: Analyzing trace with hash -185023354, now seen corresponding path program 1 times [2021-11-20 05:51:24,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:24,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203430350] [2021-11-20 05:51:24,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:24,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:25,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:25,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:25,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203430350] [2021-11-20 05:51:25,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203430350] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:25,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:25,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:51:25,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312641512] [2021-11-20 05:51:25,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:25,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:51:25,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:25,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:51:25,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:51:25,141 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2021-11-20 05:51:25,143 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 106 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:25,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:51:25,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2021-11-20 05:51:25,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:51:26,184 INFO L129 PetriNetUnfolder]: 653/2092 cut-off events. [2021-11-20 05:51:26,184 INFO L130 PetriNetUnfolder]: For 92/92 co-relation queries the response was YES. [2021-11-20 05:51:26,196 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3295 conditions, 2092 events. 653/2092 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 16673 event pairs, 155 based on Foata normal form. 0/2024 useless extension candidates. Maximal degree in co-relation 3241. Up to 437 conditions per place. [2021-11-20 05:51:26,211 INFO L132 encePairwiseOnDemand]: 104/113 looper letters, 26 selfloop transitions, 5 changer transitions 58/164 dead transitions. [2021-11-20 05:51:26,211 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 164 transitions, 510 flow [2021-11-20 05:51:26,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 05:51:26,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-11-20 05:51:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 881 transitions. [2021-11-20 05:51:26,222 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8662733529990168 [2021-11-20 05:51:26,222 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 881 transitions. [2021-11-20 05:51:26,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 881 transitions. [2021-11-20 05:51:26,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:51:26,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 881 transitions. [2021-11-20 05:51:26,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 97.88888888888889) internal successors, (881), 9 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:26,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 113.0) internal successors, (1130), 10 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:26,237 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 113.0) internal successors, (1130), 10 states have internal predecessors, (1130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:26,237 INFO L186 Difference]: Start difference. First operand has 115 places, 106 transitions, 222 flow. Second operand 9 states and 881 transitions. [2021-11-20 05:51:26,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 164 transitions, 510 flow [2021-11-20 05:51:26,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 164 transitions, 492 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 05:51:26,248 INFO L242 Difference]: Finished difference. Result has 129 places, 98 transitions, 268 flow [2021-11-20 05:51:26,249 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=268, PETRI_PLACES=129, PETRI_TRANSITIONS=98} [2021-11-20 05:51:26,251 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 11 predicate places. [2021-11-20 05:51:26,251 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 98 transitions, 268 flow [2021-11-20 05:51:26,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 91.16666666666667) internal successors, (547), 6 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:26,252 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:51:26,252 INFO L254 CegarLoopForPetriNet]: 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, 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, 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, 1] [2021-11-20 05:51:26,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 05:51:26,253 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-20 05:51:26,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:26,254 INFO L85 PathProgramCache]: Analyzing trace with hash 52028421, now seen corresponding path program 1 times [2021-11-20 05:51:26,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:26,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376090628] [2021-11-20 05:51:26,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:26,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:26,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:26,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376090628] [2021-11-20 05:51:26,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376090628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:26,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:26,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 05:51:26,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585856902] [2021-11-20 05:51:26,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:26,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 05:51:26,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:26,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:51:26,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:51:26,529 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2021-11-20 05:51:26,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 98 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:26,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:51:26,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2021-11-20 05:51:26,531 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:51:27,568 INFO L129 PetriNetUnfolder]: 1259/2658 cut-off events. [2021-11-20 05:51:27,569 INFO L130 PetriNetUnfolder]: For 2440/2721 co-relation queries the response was YES. [2021-11-20 05:51:27,582 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6088 conditions, 2658 events. 1259/2658 cut-off events. For 2440/2721 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 19159 event pairs, 71 based on Foata normal form. 40/2522 useless extension candidates. Maximal degree in co-relation 6028. Up to 770 conditions per place. [2021-11-20 05:51:27,598 INFO L132 encePairwiseOnDemand]: 103/113 looper letters, 34 selfloop transitions, 7 changer transitions 38/158 dead transitions. [2021-11-20 05:51:27,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 158 transitions, 634 flow [2021-11-20 05:51:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:51:27,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-20 05:51:27,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 983 transitions. [2021-11-20 05:51:27,604 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8699115044247787 [2021-11-20 05:51:27,604 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 983 transitions. [2021-11-20 05:51:27,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 983 transitions. [2021-11-20 05:51:27,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:51:27,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 983 transitions. [2021-11-20 05:51:27,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 98.3) internal successors, (983), 10 states have internal predecessors, (983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:27,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 113.0) internal successors, (1243), 11 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:27,616 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 113.0) internal successors, (1243), 11 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:27,616 INFO L186 Difference]: Start difference. First operand has 129 places, 98 transitions, 268 flow. Second operand 10 states and 983 transitions. [2021-11-20 05:51:27,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 158 transitions, 634 flow [2021-11-20 05:51:27,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 158 transitions, 604 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-11-20 05:51:27,630 INFO L242 Difference]: Finished difference. Result has 124 places, 102 transitions, 314 flow [2021-11-20 05:51:27,631 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=314, PETRI_PLACES=124, PETRI_TRANSITIONS=102} [2021-11-20 05:51:27,632 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 6 predicate places. [2021-11-20 05:51:27,632 INFO L470 AbstractCegarLoop]: Abstraction has has 124 places, 102 transitions, 314 flow [2021-11-20 05:51:27,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:27,633 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:51:27,633 INFO L254 CegarLoopForPetriNet]: 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, 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, 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, 1, 1, 1] [2021-11-20 05:51:27,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:51:27,634 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-20 05:51:27,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:27,635 INFO L85 PathProgramCache]: Analyzing trace with hash -694698910, now seen corresponding path program 1 times [2021-11-20 05:51:27,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:27,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539461871] [2021-11-20 05:51:27,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:27,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:27,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:27,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:27,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539461871] [2021-11-20 05:51:27,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539461871] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:27,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:27,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:51:27,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258628086] [2021-11-20 05:51:27,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:27,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:51:27,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:27,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:51:27,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:51:27,824 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2021-11-20 05:51:27,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 102 transitions, 314 flow. Second operand has 7 states, 7 states have (on average 92.85714285714286) internal successors, (650), 7 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:27,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:51:27,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2021-11-20 05:51:27,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:51:28,512 INFO L129 PetriNetUnfolder]: 593/1534 cut-off events. [2021-11-20 05:51:28,513 INFO L130 PetriNetUnfolder]: For 2747/2884 co-relation queries the response was YES. [2021-11-20 05:51:28,523 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4714 conditions, 1534 events. 593/1534 cut-off events. For 2747/2884 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 10822 event pairs, 49 based on Foata normal form. 78/1561 useless extension candidates. Maximal degree in co-relation 4647. Up to 433 conditions per place. [2021-11-20 05:51:28,530 INFO L132 encePairwiseOnDemand]: 103/113 looper letters, 42 selfloop transitions, 18 changer transitions 28/167 dead transitions. [2021-11-20 05:51:28,530 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 167 transitions, 855 flow [2021-11-20 05:51:28,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:51:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-11-20 05:51:28,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1082 transitions. [2021-11-20 05:51:28,536 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8704746580852776 [2021-11-20 05:51:28,536 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1082 transitions. [2021-11-20 05:51:28,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1082 transitions. [2021-11-20 05:51:28,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:51:28,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1082 transitions. [2021-11-20 05:51:28,541 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 98.36363636363636) internal successors, (1082), 11 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:28,545 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:28,546 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 113.0) internal successors, (1356), 12 states have internal predecessors, (1356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:28,546 INFO L186 Difference]: Start difference. First operand has 124 places, 102 transitions, 314 flow. Second operand 11 states and 1082 transitions. [2021-11-20 05:51:28,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 167 transitions, 855 flow [2021-11-20 05:51:28,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 167 transitions, 833 flow, removed 7 selfloop flow, removed 7 redundant places. [2021-11-20 05:51:28,562 INFO L242 Difference]: Finished difference. Result has 129 places, 117 transitions, 485 flow [2021-11-20 05:51:28,563 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=485, PETRI_PLACES=129, PETRI_TRANSITIONS=117} [2021-11-20 05:51:28,564 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 11 predicate places. [2021-11-20 05:51:28,564 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 117 transitions, 485 flow [2021-11-20 05:51:28,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 92.85714285714286) internal successors, (650), 7 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:28,565 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:51:28,565 INFO L254 CegarLoopForPetriNet]: 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, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:28,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 05:51:28,566 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-20 05:51:28,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:28,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1699947646, now seen corresponding path program 1 times [2021-11-20 05:51:28,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:28,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440684856] [2021-11-20 05:51:28,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:28,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:28,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:28,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:28,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:28,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440684856] [2021-11-20 05:51:28,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440684856] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:28,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:28,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:51:28,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129372277] [2021-11-20 05:51:28,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:28,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:51:28,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:28,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:51:28,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:51:28,814 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2021-11-20 05:51:28,818 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 117 transitions, 485 flow. Second operand has 8 states, 8 states have (on average 92.75) internal successors, (742), 8 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:28,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:51:28,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2021-11-20 05:51:28,818 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:51:29,515 INFO L129 PetriNetUnfolder]: 494/1373 cut-off events. [2021-11-20 05:51:29,515 INFO L130 PetriNetUnfolder]: For 4167/4360 co-relation queries the response was YES. [2021-11-20 05:51:29,526 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4872 conditions, 1373 events. 494/1373 cut-off events. For 4167/4360 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 10383 event pairs, 26 based on Foata normal form. 68/1391 useless extension candidates. Maximal degree in co-relation 4803. Up to 367 conditions per place. [2021-11-20 05:51:29,534 INFO L132 encePairwiseOnDemand]: 103/113 looper letters, 37 selfloop transitions, 22 changer transitions 26/164 dead transitions. [2021-11-20 05:51:29,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 164 transitions, 923 flow [2021-11-20 05:51:29,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 05:51:29,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 05:51:29,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1346 transitions. [2021-11-20 05:51:29,542 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8508217446270544 [2021-11-20 05:51:29,542 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1346 transitions. [2021-11-20 05:51:29,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1346 transitions. [2021-11-20 05:51:29,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:51:29,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1346 transitions. [2021-11-20 05:51:29,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 96.14285714285714) internal successors, (1346), 14 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:29,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:29,556 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 113.0) internal successors, (1695), 15 states have internal predecessors, (1695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:29,557 INFO L186 Difference]: Start difference. First operand has 129 places, 117 transitions, 485 flow. Second operand 14 states and 1346 transitions. [2021-11-20 05:51:29,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 164 transitions, 923 flow [2021-11-20 05:51:29,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 164 transitions, 853 flow, removed 32 selfloop flow, removed 2 redundant places. [2021-11-20 05:51:29,606 INFO L242 Difference]: Finished difference. Result has 147 places, 118 transitions, 503 flow [2021-11-20 05:51:29,607 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=503, PETRI_PLACES=147, PETRI_TRANSITIONS=118} [2021-11-20 05:51:29,610 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 29 predicate places. [2021-11-20 05:51:29,611 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 118 transitions, 503 flow [2021-11-20 05:51:29,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 92.75) internal successors, (742), 8 states have internal predecessors, (742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:29,612 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:51:29,612 INFO L254 CegarLoopForPetriNet]: 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:29,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 05:51:29,613 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-20 05:51:29,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:29,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1667826157, now seen corresponding path program 1 times [2021-11-20 05:51:29,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:29,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472847177] [2021-11-20 05:51:29,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:29,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:29,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:29,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:29,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472847177] [2021-11-20 05:51:29,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472847177] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:29,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:29,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:51:29,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276582967] [2021-11-20 05:51:29,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:29,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:51:29,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:29,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:51:29,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:51:29,897 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 113 [2021-11-20 05:51:29,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 118 transitions, 503 flow. Second operand has 7 states, 7 states have (on average 93.42857142857143) internal successors, (654), 7 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:29,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:51:29,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 113 [2021-11-20 05:51:29,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:51:30,333 INFO L129 PetriNetUnfolder]: 191/1214 cut-off events. [2021-11-20 05:51:30,333 INFO L130 PetriNetUnfolder]: For 3107/3155 co-relation queries the response was YES. [2021-11-20 05:51:30,345 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3643 conditions, 1214 events. 191/1214 cut-off events. For 3107/3155 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 11638 event pairs, 4 based on Foata normal form. 5/1159 useless extension candidates. Maximal degree in co-relation 3565. Up to 183 conditions per place. [2021-11-20 05:51:30,349 INFO L132 encePairwiseOnDemand]: 107/113 looper letters, 19 selfloop transitions, 1 changer transitions 15/133 dead transitions. [2021-11-20 05:51:30,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 133 transitions, 635 flow [2021-11-20 05:51:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:51:30,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-20 05:51:30,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 668 transitions. [2021-11-20 05:51:30,353 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8445006321112516 [2021-11-20 05:51:30,353 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 668 transitions. [2021-11-20 05:51:30,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 668 transitions. [2021-11-20 05:51:30,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:51:30,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 668 transitions. [2021-11-20 05:51:30,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.42857142857143) internal successors, (668), 7 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:30,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 113.0) internal successors, (904), 8 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:30,360 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 113.0) internal successors, (904), 8 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:30,360 INFO L186 Difference]: Start difference. First operand has 147 places, 118 transitions, 503 flow. Second operand 7 states and 668 transitions. [2021-11-20 05:51:30,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 133 transitions, 635 flow [2021-11-20 05:51:30,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 133 transitions, 527 flow, removed 36 selfloop flow, removed 16 redundant places. [2021-11-20 05:51:30,409 INFO L242 Difference]: Finished difference. Result has 139 places, 117 transitions, 424 flow [2021-11-20 05:51:30,409 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=424, PETRI_PLACES=139, PETRI_TRANSITIONS=117} [2021-11-20 05:51:30,412 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 21 predicate places. [2021-11-20 05:51:30,412 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 117 transitions, 424 flow [2021-11-20 05:51:30,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.42857142857143) internal successors, (654), 7 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:30,414 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:51:30,414 INFO L254 CegarLoopForPetriNet]: 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:30,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 05:51:30,415 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-20 05:51:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash 504160885, now seen corresponding path program 2 times [2021-11-20 05:51:30,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:30,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721728503] [2021-11-20 05:51:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:30,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:30,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:30,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:30,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721728503] [2021-11-20 05:51:30,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721728503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:30,752 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:30,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 05:51:30,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372532146] [2021-11-20 05:51:30,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:30,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:51:30,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:30,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:51:30,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:51:30,761 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 113 [2021-11-20 05:51:30,762 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 117 transitions, 424 flow. Second operand has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:30,763 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:51:30,763 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 113 [2021-11-20 05:51:30,763 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:51:31,265 INFO L129 PetriNetUnfolder]: 163/1085 cut-off events. [2021-11-20 05:51:31,266 INFO L130 PetriNetUnfolder]: For 1090/1101 co-relation queries the response was YES. [2021-11-20 05:51:31,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2654 conditions, 1085 events. 163/1085 cut-off events. For 1090/1101 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 10268 event pairs, 2 based on Foata normal form. 1/1037 useless extension candidates. Maximal degree in co-relation 2632. Up to 154 conditions per place. [2021-11-20 05:51:31,276 INFO L132 encePairwiseOnDemand]: 101/113 looper letters, 21 selfloop transitions, 9 changer transitions 29/139 dead transitions. [2021-11-20 05:51:31,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 139 transitions, 600 flow [2021-11-20 05:51:31,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 05:51:31,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-11-20 05:51:31,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 890 transitions. [2021-11-20 05:51:31,281 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7876106194690266 [2021-11-20 05:51:31,282 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 890 transitions. [2021-11-20 05:51:31,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 890 transitions. [2021-11-20 05:51:31,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:51:31,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 890 transitions. [2021-11-20 05:51:31,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:31,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 113.0) internal successors, (1243), 11 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:31,291 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 113.0) internal successors, (1243), 11 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:31,291 INFO L186 Difference]: Start difference. First operand has 139 places, 117 transitions, 424 flow. Second operand 10 states and 890 transitions. [2021-11-20 05:51:31,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 139 transitions, 600 flow [2021-11-20 05:51:31,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 139 transitions, 579 flow, removed 8 selfloop flow, removed 6 redundant places. [2021-11-20 05:51:31,320 INFO L242 Difference]: Finished difference. Result has 145 places, 109 transitions, 381 flow [2021-11-20 05:51:31,321 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=381, PETRI_PLACES=145, PETRI_TRANSITIONS=109} [2021-11-20 05:51:31,322 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2021-11-20 05:51:31,322 INFO L470 AbstractCegarLoop]: Abstraction has has 145 places, 109 transitions, 381 flow [2021-11-20 05:51:31,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.0) internal successors, (696), 8 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:31,323 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:51:31,323 INFO L254 CegarLoopForPetriNet]: 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:31,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 05:51:31,324 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-20 05:51:31,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:31,324 INFO L85 PathProgramCache]: Analyzing trace with hash -929546411, now seen corresponding path program 3 times [2021-11-20 05:51:31,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:31,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000968206] [2021-11-20 05:51:31,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:31,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:51:31,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:51:31,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:51:31,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000968206] [2021-11-20 05:51:31,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000968206] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:51:31,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:51:31,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 05:51:31,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398864664] [2021-11-20 05:51:31,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:51:31,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 05:51:31,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:51:31,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 05:51:31,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:51:31,516 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 113 [2021-11-20 05:51:31,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 109 transitions, 381 flow. Second operand has 7 states, 7 states have (on average 91.71428571428571) internal successors, (642), 7 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:31,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 05:51:31,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 113 [2021-11-20 05:51:31,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 05:51:31,732 INFO L129 PetriNetUnfolder]: 40/369 cut-off events. [2021-11-20 05:51:31,732 INFO L130 PetriNetUnfolder]: For 283/283 co-relation queries the response was YES. [2021-11-20 05:51:31,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 369 events. 40/369 cut-off events. For 283/283 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2181 event pairs, 1 based on Foata normal form. 1/359 useless extension candidates. Maximal degree in co-relation 765. Up to 60 conditions per place. [2021-11-20 05:51:31,736 INFO L132 encePairwiseOnDemand]: 105/113 looper letters, 15 selfloop transitions, 4 changer transitions 18/117 dead transitions. [2021-11-20 05:51:31,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 117 transitions, 483 flow [2021-11-20 05:51:31,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 05:51:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-11-20 05:51:31,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 655 transitions. [2021-11-20 05:51:31,739 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8280657395701644 [2021-11-20 05:51:31,740 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 655 transitions. [2021-11-20 05:51:31,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 655 transitions. [2021-11-20 05:51:31,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:51:31,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 655 transitions. [2021-11-20 05:51:31,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 93.57142857142857) internal successors, (655), 7 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:31,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 113.0) internal successors, (904), 8 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:31,747 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 113.0) internal successors, (904), 8 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:31,747 INFO L186 Difference]: Start difference. First operand has 145 places, 109 transitions, 381 flow. Second operand 7 states and 655 transitions. [2021-11-20 05:51:31,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 117 transitions, 483 flow [2021-11-20 05:51:31,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 117 transitions, 423 flow, removed 17 selfloop flow, removed 12 redundant places. [2021-11-20 05:51:31,754 INFO L242 Difference]: Finished difference. Result has 133 places, 99 transitions, 298 flow [2021-11-20 05:51:31,757 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=298, PETRI_PLACES=133, PETRI_TRANSITIONS=99} [2021-11-20 05:51:31,759 INFO L334 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2021-11-20 05:51:31,760 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 99 transitions, 298 flow [2021-11-20 05:51:31,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 91.71428571428571) internal successors, (642), 7 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:51:31,760 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 05:51:31,761 INFO L254 CegarLoopForPetriNet]: 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:51:31,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 05:51:31,762 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 3 more)] === [2021-11-20 05:51:31,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:51:31,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1418931791, now seen corresponding path program 4 times [2021-11-20 05:51:31,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:51:31,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147536044] [2021-11-20 05:51:31,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:51:31,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:51:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:51:31,824 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:51:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:51:31,962 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:51:31,963 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 05:51:31,964 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2021-11-20 05:51:31,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2021-11-20 05:51:31,966 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 6 remaining) [2021-11-20 05:51:31,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 6 remaining) [2021-11-20 05:51:31,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 6 remaining) [2021-11-20 05:51:31,967 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2021-11-20 05:51:31,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 05:51:31,972 INFO L732 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2021-11-20 05:51:31,979 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-20 05:51:31,979 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 05:51:32,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:51:32 BasicIcfg [2021-11-20 05:51:32,229 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 05:51:32,230 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:51:32,230 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:51:32,230 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:51:32,231 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:51:23" (3/4) ... [2021-11-20 05:51:32,232 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 05:51:32,366 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 05:51:32,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:51:32,371 INFO L158 Benchmark]: Toolchain (without parser) took 11265.53ms. Allocated memory was 92.3MB in the beginning and 264.2MB in the end (delta: 172.0MB). Free memory was 56.1MB in the beginning and 96.3MB in the end (delta: -40.3MB). Peak memory consumption was 130.9MB. Max. memory is 16.1GB. [2021-11-20 05:51:32,372 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 92.3MB. Free memory was 62.8MB in the beginning and 62.7MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:51:32,373 INFO L158 Benchmark]: CACSL2BoogieTranslator took 779.49ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 55.9MB in the beginning and 79.7MB in the end (delta: -23.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 05:51:32,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.19ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 76.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 05:51:32,374 INFO L158 Benchmark]: Boogie Preprocessor took 66.11ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:51:32,374 INFO L158 Benchmark]: RCFGBuilder took 1469.55ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 71.2MB in the end (delta: 3.7MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2021-11-20 05:51:32,375 INFO L158 Benchmark]: TraceAbstraction took 8732.86ms. Allocated memory was 117.4MB in the beginning and 264.2MB in the end (delta: 146.8MB). Free memory was 70.5MB in the beginning and 129.9MB in the end (delta: -59.4MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. [2021-11-20 05:51:32,375 INFO L158 Benchmark]: Witness Printer took 140.74ms. Allocated memory is still 264.2MB. Free memory was 129.9MB in the beginning and 96.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2021-11-20 05:51:32,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 92.3MB. Free memory was 62.8MB in the beginning and 62.7MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 779.49ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 55.9MB in the beginning and 79.7MB in the end (delta: -23.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.19ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 76.9MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.11ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 74.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1469.55ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 71.2MB in the end (delta: 3.7MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * TraceAbstraction took 8732.86ms. Allocated memory was 117.4MB in the beginning and 264.2MB in the end (delta: 146.8MB). Free memory was 70.5MB in the beginning and 129.9MB in the end (delta: -59.4MB). Peak memory consumption was 90.6MB. Max. memory is 16.1GB. * Witness Printer took 140.74ms. Allocated memory is still 264.2MB. Free memory was 129.9MB in the beginning and 96.3MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L711] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0] [L713] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0] [L714] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0] [L715] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L717] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L719] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L720] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L721] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L722] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L723] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L724] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L725] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L726] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L727] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L728] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L729] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L730] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L731] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L732] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L733] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L734] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L735] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L737] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L738] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L739] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L823] 0 pthread_t t1394; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1394={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L824] FCALL, FORK 0 pthread_create(&t1394, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1394, ((void *)0), P0, ((void *)0))=-2, t1394={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L825] 0 pthread_t t1395; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1394={5:0}, t1395={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L826] FCALL, FORK 0 pthread_create(&t1395, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1395, ((void *)0), P1, ((void *)0))=-1, t1394={5:0}, t1395={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L827] 0 pthread_t t1396; VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1394={5:0}, t1395={6:0}, t1396={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L828] FCALL, FORK 0 pthread_create(&t1396, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1396, ((void *)0), P2, ((void *)0))=0, t1394={5:0}, t1395={6:0}, t1396={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L786] 3 y$w_buff1 = y$w_buff0 [L787] 3 y$w_buff0 = 1 [L788] 3 y$w_buff1_used = y$w_buff0_used [L789] 3 y$w_buff0_used = (_Bool)1 [L790] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L790] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L791] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L792] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L793] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L794] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L795] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L798] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L743] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L746] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L758] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L761] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L762] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L763] 2 y$flush_delayed = weak$$choice2 [L764] 2 y$mem_tmp = y [L765] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L765] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L766] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L766] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0) [L766] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L766] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L767] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L767] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1) [L767] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L767] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L768] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L768] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used) [L768] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L768] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L769] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L769] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L769] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L769] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L770] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L770] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2) [L770] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L770] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L771] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L771] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L771] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L771] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L772] 2 __unbuffered_p1_EAX = y [L773] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L773] 2 y = y$flush_delayed ? y$mem_tmp : y [L774] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L801] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L801] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L802] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L802] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L803] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L804] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L805] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L779] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L808] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=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$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L751] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L830] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1394={5:0}, t1395={6:0}, t1396={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L832] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) VAL [\old(cond)=1, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, cond=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L832] RET 0 assume_abort_if_not(main$tmp_guard0) [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L834] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L834] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L835] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L835] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L836] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L836] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L837] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L837] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L838] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L838] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L841] 0 main$tmp_guard1 = !(x == 2 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 0) VAL [__unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1394={5:0}, t1395={6:0}, t1396={3:0}, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L843] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, expression=1, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, __unbuffered_cnt=3, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 826]: 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: 828]: 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: 824]: 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 7 procedures, 138 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 324 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 324 mSDsluCounter, 336 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 589 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 771 IncrementalHoareTripleChecker+Invalid, 844 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 69 mSDtfsCounter, 771 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=503occurred in iteration=5, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 717 NumberOfCodeBlocks, 717 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 622 ConstructedInterpolants, 0 QuantifiedInterpolants, 2523 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-20 05:51:32,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37446182-b1ac-42f1-b806-20a7cf3e616b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE