./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --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 ef808fc1470b7509ff56eb59d7d443a24f9bd367b94a6fd316176ae1cba1f1f6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:15:57,130 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:15:57,221 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:15:57,230 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:15:57,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:15:57,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:15:57,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:15:57,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:15:57,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:15:57,278 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:15:57,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:15:57,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:15:57,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:15:57,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:15:57,280 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:15:57,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:15:57,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:15:57,280 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:15:57,280 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:15:57,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:15:57,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:15:57,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:15:57,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:15:57,281 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:15:57,281 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:15:57,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:15:57,281 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:15:57,281 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:15:57,281 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:15:57,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:15:57,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:15:57,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:15:57,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:57,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:15:57,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:15:57,282 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:15:57,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:15:57,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:15:57,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:15:57,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:15:57,282 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:15:57,282 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:15:57,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:15:57,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:15:57,283 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:15:57,283 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:15:57,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:15:57,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:15:57,283 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> ef808fc1470b7509ff56eb59d7d443a24f9bd367b94a6fd316176ae1cba1f1f6 [2024-11-27 23:15:57,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:15:57,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:15:57,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:15:57,618 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:15:57,619 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:15:57,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i [2024-11-27 23:16:00,621 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/data/f623cea60/18b0c0778b8d4894a32cea31a9ac4846/FLAG5a6be629a [2024-11-27 23:16:00,958 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:16:00,959 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i [2024-11-27 23:16:00,985 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/data/f623cea60/18b0c0778b8d4894a32cea31a9ac4846/FLAG5a6be629a [2024-11-27 23:16:01,189 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/data/f623cea60/18b0c0778b8d4894a32cea31a9ac4846 [2024-11-27 23:16:01,192 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:16:01,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:16:01,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:16:01,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:16:01,204 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:16:01,205 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:01,205 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@209f10b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01, skipping insertion in model container [2024-11-27 23:16:01,206 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:01,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:16:01,454 WARN L250 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_7091a73e-d378-422d-b0a3-341ad1123d40/sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i[993,1006] [2024-11-27 23:16:01,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:16:01,705 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:16:01,716 WARN L250 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_7091a73e-d378-422d-b0a3-341ad1123d40/sv-benchmarks/c/pthread-wmm/safe016_rmo.oepc.i[993,1006] [2024-11-27 23:16:01,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:16:01,879 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:16:01,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01 WrapperNode [2024-11-27 23:16:01,879 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:16:01,880 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:16:01,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:16:01,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:16:01,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:01,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:01,936 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 174 [2024-11-27 23:16:01,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:16:01,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:16:01,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:16:01,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:16:01,950 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:01,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:01,958 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:01,991 INFO L175 MemorySlicer]: Split 24 memory accesses to 2 slices as follows [2, 22]. 92 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 9 writes are split as follows [0, 9]. [2024-11-27 23:16:01,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:01,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:02,012 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:02,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:02,019 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:02,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:02,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:02,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:16:02,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:16:02,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:16:02,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:16:02,040 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (1/1) ... [2024-11-27 23:16:02,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:16:02,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:16:02,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:16:02,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:16:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:16:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:16:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:16:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:16:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-27 23:16:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:16:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-27 23:16:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-27 23:16:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-27 23:16:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-27 23:16:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-27 23:16:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-27 23:16:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-27 23:16:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-27 23:16:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:16:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:16:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-27 23:16:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:16:02,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:16:02,118 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 23:16:02,334 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:16:02,338 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:16:02,985 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 23:16:02,985 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:16:03,521 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:16:03,522 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 23:16:03,522 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:16:03 BoogieIcfgContainer [2024-11-27 23:16:03,522 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:16:03,525 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:16:03,525 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:16:03,530 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:16:03,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:16:01" (1/3) ... [2024-11-27 23:16:03,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f84cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:16:03, skipping insertion in model container [2024-11-27 23:16:03,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:01" (2/3) ... [2024-11-27 23:16:03,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f84cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:16:03, skipping insertion in model container [2024-11-27 23:16:03,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:16:03" (3/3) ... [2024-11-27 23:16:03,533 INFO L128 eAbstractionObserver]: Analyzing ICFG safe016_rmo.oepc.i [2024-11-27 23:16:03,552 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:16:03,554 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe016_rmo.oepc.i that has 5 procedures, 45 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-27 23:16:03,554 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 23:16:03,646 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 23:16:03,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 45 transitions, 106 flow [2024-11-27 23:16:03,742 INFO L124 PetriNetUnfolderBase]: 1/41 cut-off events. [2024-11-27 23:16:03,744 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:16:03,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-27 23:16:03,748 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 45 transitions, 106 flow [2024-11-27 23:16:03,751 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 38 transitions, 88 flow [2024-11-27 23:16:03,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:16:03,778 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@66823acf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:16:03,778 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-27 23:16:03,804 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 23:16:03,805 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-11-27 23:16:03,805 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 23:16:03,805 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:03,806 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:03,807 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:03,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:03,815 INFO L85 PathProgramCache]: Analyzing trace with hash 367158955, now seen corresponding path program 1 times [2024-11-27 23:16:03,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:03,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557104359] [2024-11-27 23:16:03,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:03,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:04,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:04,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:04,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557104359] [2024-11-27 23:16:04,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557104359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:04,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:04,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:16:04,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403222282] [2024-11-27 23:16:04,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:04,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:16:04,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:04,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:16:04,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:16:05,011 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2024-11-27 23:16:05,015 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-11-27 23:16:05,016 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:05,016 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2024-11-27 23:16:05,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:06,537 INFO L124 PetriNetUnfolderBase]: 2645/4018 cut-off events. [2024-11-27 23:16:06,537 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-27 23:16:06,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7836 conditions, 4018 events. 2645/4018 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 26536 event pairs, 715 based on Foata normal form. 120/4117 useless extension candidates. Maximal degree in co-relation 7824. Up to 2617 conditions per place. [2024-11-27 23:16:06,569 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 33 selfloop transitions, 2 changer transitions 35/84 dead transitions. [2024-11-27 23:16:06,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 84 transitions, 323 flow [2024-11-27 23:16:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:16:06,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 23:16:06,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 198 transitions. [2024-11-27 23:16:06,583 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2024-11-27 23:16:06,585 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 88 flow. Second operand 7 states and 198 transitions. [2024-11-27 23:16:06,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 84 transitions, 323 flow [2024-11-27 23:16:06,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 84 transitions, 318 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-27 23:16:06,593 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 100 flow [2024-11-27 23:16:06,596 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=100, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2024-11-27 23:16:06,599 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 7 predicate places. [2024-11-27 23:16:06,599 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 100 flow [2024-11-27 23:16:06,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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) [2024-11-27 23:16:06,600 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:06,600 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:06,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:16:06,600 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:06,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:06,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1677354316, now seen corresponding path program 1 times [2024-11-27 23:16:06,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:06,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854948778] [2024-11-27 23:16:06,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:06,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:07,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:07,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:07,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854948778] [2024-11-27 23:16:07,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854948778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:07,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:07,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:16:07,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51115705] [2024-11-27 23:16:07,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:07,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:16:07,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:07,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:16:07,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:16:07,207 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2024-11-27 23:16:07,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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) [2024-11-27 23:16:07,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:07,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2024-11-27 23:16:07,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:09,954 INFO L124 PetriNetUnfolderBase]: 7175/11199 cut-off events. [2024-11-27 23:16:09,954 INFO L125 PetriNetUnfolderBase]: For 1200/1200 co-relation queries the response was YES. [2024-11-27 23:16:09,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23122 conditions, 11199 events. 7175/11199 cut-off events. For 1200/1200 co-relation queries the response was YES. Maximal size of possible extension queue 621. Compared 79726 event pairs, 863 based on Foata normal form. 192/11285 useless extension candidates. Maximal degree in co-relation 23107. Up to 4521 conditions per place. [2024-11-27 23:16:10,030 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 50 selfloop transitions, 4 changer transitions 51/117 dead transitions. [2024-11-27 23:16:10,031 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 117 transitions, 491 flow [2024-11-27 23:16:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:16:10,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-27 23:16:10,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 235 transitions. [2024-11-27 23:16:10,036 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6527777777777778 [2024-11-27 23:16:10,036 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 100 flow. Second operand 8 states and 235 transitions. [2024-11-27 23:16:10,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 117 transitions, 491 flow [2024-11-27 23:16:10,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 117 transitions, 469 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-27 23:16:10,189 INFO L231 Difference]: Finished difference. Result has 61 places, 40 transitions, 130 flow [2024-11-27 23:16:10,189 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=130, PETRI_PLACES=61, PETRI_TRANSITIONS=40} [2024-11-27 23:16:10,190 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 10 predicate places. [2024-11-27 23:16:10,191 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 40 transitions, 130 flow [2024-11-27 23:16:10,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 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) [2024-11-27 23:16:10,191 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:10,191 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:10,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:16:10,192 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:10,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:10,192 INFO L85 PathProgramCache]: Analyzing trace with hash 387328421, now seen corresponding path program 1 times [2024-11-27 23:16:10,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:10,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745992195] [2024-11-27 23:16:10,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:10,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:10,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:10,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:10,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745992195] [2024-11-27 23:16:10,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745992195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:10,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:10,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:16:10,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219048119] [2024-11-27 23:16:10,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:10,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:16:10,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:10,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:16:10,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:16:10,714 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-27 23:16:10,714 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 40 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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) [2024-11-27 23:16:10,714 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:10,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-27 23:16:10,715 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:11,777 INFO L124 PetriNetUnfolderBase]: 2853/4641 cut-off events. [2024-11-27 23:16:11,778 INFO L125 PetriNetUnfolderBase]: For 2643/2666 co-relation queries the response was YES. [2024-11-27 23:16:11,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10814 conditions, 4641 events. 2853/4641 cut-off events. For 2643/2666 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 31870 event pairs, 1099 based on Foata normal form. 128/4640 useless extension candidates. Maximal degree in co-relation 10797. Up to 2643 conditions per place. [2024-11-27 23:16:11,832 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 37 selfloop transitions, 2 changer transitions 35/91 dead transitions. [2024-11-27 23:16:11,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 91 transitions, 400 flow [2024-11-27 23:16:11,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:16:11,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 23:16:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 209 transitions. [2024-11-27 23:16:11,834 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6634920634920635 [2024-11-27 23:16:11,834 INFO L175 Difference]: Start difference. First operand has 61 places, 40 transitions, 130 flow. Second operand 7 states and 209 transitions. [2024-11-27 23:16:11,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 91 transitions, 400 flow [2024-11-27 23:16:11,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 91 transitions, 383 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-27 23:16:11,853 INFO L231 Difference]: Finished difference. Result has 64 places, 40 transitions, 135 flow [2024-11-27 23:16:11,853 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=135, PETRI_PLACES=64, PETRI_TRANSITIONS=40} [2024-11-27 23:16:11,854 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 13 predicate places. [2024-11-27 23:16:11,855 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 40 transitions, 135 flow [2024-11-27 23:16:11,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 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) [2024-11-27 23:16:11,855 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:11,855 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:16:11,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:16:11,855 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:11,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:11,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1664462777, now seen corresponding path program 1 times [2024-11-27 23:16:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:11,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4515449] [2024-11-27 23:16:11,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:11,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:12,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:12,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4515449] [2024-11-27 23:16:12,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4515449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:12,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:12,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:16:12,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424802532] [2024-11-27 23:16:12,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:12,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:16:12,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:12,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:16:12,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:16:12,377 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2024-11-27 23:16:12,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 40 transitions, 135 flow. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 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) [2024-11-27 23:16:12,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:12,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2024-11-27 23:16:12,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:14,507 INFO L124 PetriNetUnfolderBase]: 6835/11037 cut-off events. [2024-11-27 23:16:14,508 INFO L125 PetriNetUnfolderBase]: For 6996/7001 co-relation queries the response was YES. [2024-11-27 23:16:14,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25941 conditions, 11037 events. 6835/11037 cut-off events. For 6996/7001 co-relation queries the response was YES. Maximal size of possible extension queue 691. Compared 86179 event pairs, 2143 based on Foata normal form. 227/11189 useless extension candidates. Maximal degree in co-relation 25921. Up to 3493 conditions per place. [2024-11-27 23:16:14,580 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 44 selfloop transitions, 3 changer transitions 84/143 dead transitions. [2024-11-27 23:16:14,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 143 transitions, 681 flow [2024-11-27 23:16:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:16:14,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 23:16:14,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 309 transitions. [2024-11-27 23:16:14,582 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6242424242424243 [2024-11-27 23:16:14,583 INFO L175 Difference]: Start difference. First operand has 64 places, 40 transitions, 135 flow. Second operand 11 states and 309 transitions. [2024-11-27 23:16:14,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 143 transitions, 681 flow [2024-11-27 23:16:14,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 143 transitions, 641 flow, removed 18 selfloop flow, removed 6 redundant places. [2024-11-27 23:16:14,693 INFO L231 Difference]: Finished difference. Result has 73 places, 40 transitions, 150 flow [2024-11-27 23:16:14,693 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=150, PETRI_PLACES=73, PETRI_TRANSITIONS=40} [2024-11-27 23:16:14,695 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 22 predicate places. [2024-11-27 23:16:14,695 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 40 transitions, 150 flow [2024-11-27 23:16:14,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 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) [2024-11-27 23:16:14,696 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:14,696 INFO L206 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] [2024-11-27 23:16:14,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:16:14,697 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:14,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:14,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1015548210, now seen corresponding path program 1 times [2024-11-27 23:16:14,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:14,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117457899] [2024-11-27 23:16:14,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:14,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:14,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:16,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:16,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:16,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117457899] [2024-11-27 23:16:16,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117457899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:16,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:16,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 23:16:16,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481250230] [2024-11-27 23:16:16,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:16,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:16:16,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:16,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:16:16,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:16:16,416 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:16:16,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 40 transitions, 150 flow. Second operand has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 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) [2024-11-27 23:16:16,416 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:16,416 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:16:16,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:17,913 INFO L124 PetriNetUnfolderBase]: 4160/6724 cut-off events. [2024-11-27 23:16:17,913 INFO L125 PetriNetUnfolderBase]: For 11954/11978 co-relation queries the response was YES. [2024-11-27 23:16:17,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17167 conditions, 6724 events. 4160/6724 cut-off events. For 11954/11978 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 47537 event pairs, 1225 based on Foata normal form. 160/6813 useless extension candidates. Maximal degree in co-relation 17143. Up to 4630 conditions per place. [2024-11-27 23:16:17,972 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 44 selfloop transitions, 6 changer transitions 43/106 dead transitions. [2024-11-27 23:16:17,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 106 transitions, 573 flow [2024-11-27 23:16:17,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:16:17,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 23:16:17,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 263 transitions. [2024-11-27 23:16:17,974 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5844444444444444 [2024-11-27 23:16:17,977 INFO L175 Difference]: Start difference. First operand has 73 places, 40 transitions, 150 flow. Second operand 10 states and 263 transitions. [2024-11-27 23:16:17,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 106 transitions, 573 flow [2024-11-27 23:16:18,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 106 transitions, 517 flow, removed 23 selfloop flow, removed 9 redundant places. [2024-11-27 23:16:18,010 INFO L231 Difference]: Finished difference. Result has 73 places, 45 transitions, 200 flow [2024-11-27 23:16:18,010 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=200, PETRI_PLACES=73, PETRI_TRANSITIONS=45} [2024-11-27 23:16:18,011 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 22 predicate places. [2024-11-27 23:16:18,012 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 45 transitions, 200 flow [2024-11-27 23:16:18,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 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) [2024-11-27 23:16:18,013 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:18,013 INFO L206 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] [2024-11-27 23:16:18,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:16:18,013 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:18,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:18,014 INFO L85 PathProgramCache]: Analyzing trace with hash 2009426373, now seen corresponding path program 1 times [2024-11-27 23:16:18,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:18,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210590308] [2024-11-27 23:16:18,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:18,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:19,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:19,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:19,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210590308] [2024-11-27 23:16:19,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210590308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:19,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:19,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:16:19,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421656756] [2024-11-27 23:16:19,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:19,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:16:19,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:19,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:16:19,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:16:19,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:16:19,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 45 transitions, 200 flow. Second operand has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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) [2024-11-27 23:16:19,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:19,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:16:19,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:21,214 INFO L124 PetriNetUnfolderBase]: 6074/9916 cut-off events. [2024-11-27 23:16:21,214 INFO L125 PetriNetUnfolderBase]: For 28706/28742 co-relation queries the response was YES. [2024-11-27 23:16:21,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29562 conditions, 9916 events. 6074/9916 cut-off events. For 28706/28742 co-relation queries the response was YES. Maximal size of possible extension queue 649. Compared 76201 event pairs, 2034 based on Foata normal form. 120/9933 useless extension candidates. Maximal degree in co-relation 29537. Up to 4382 conditions per place. [2024-11-27 23:16:21,293 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 87 selfloop transitions, 21 changer transitions 21/142 dead transitions. [2024-11-27 23:16:21,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 142 transitions, 854 flow [2024-11-27 23:16:21,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:16:21,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 23:16:21,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 293 transitions. [2024-11-27 23:16:21,295 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6511111111111111 [2024-11-27 23:16:21,295 INFO L175 Difference]: Start difference. First operand has 73 places, 45 transitions, 200 flow. Second operand 10 states and 293 transitions. [2024-11-27 23:16:21,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 142 transitions, 854 flow [2024-11-27 23:16:21,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 142 transitions, 794 flow, removed 30 selfloop flow, removed 6 redundant places. [2024-11-27 23:16:21,465 INFO L231 Difference]: Finished difference. Result has 77 places, 61 transitions, 372 flow [2024-11-27 23:16:21,465 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=372, PETRI_PLACES=77, PETRI_TRANSITIONS=61} [2024-11-27 23:16:21,466 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 26 predicate places. [2024-11-27 23:16:21,468 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 61 transitions, 372 flow [2024-11-27 23:16:21,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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) [2024-11-27 23:16:21,469 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:21,469 INFO L206 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] [2024-11-27 23:16:21,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:16:21,469 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:21,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:21,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1100185245, now seen corresponding path program 2 times [2024-11-27 23:16:21,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:21,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270868667] [2024-11-27 23:16:21,470 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:16:21,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:21,509 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:16:21,509 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:16:22,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:22,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:22,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270868667] [2024-11-27 23:16:22,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270868667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:22,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:22,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:16:22,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580689650] [2024-11-27 23:16:22,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:22,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:16:22,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:22,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:16:22,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:16:22,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:16:22,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 61 transitions, 372 flow. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2024-11-27 23:16:22,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:22,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:16:22,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:23,939 INFO L124 PetriNetUnfolderBase]: 6277/10138 cut-off events. [2024-11-27 23:16:23,939 INFO L125 PetriNetUnfolderBase]: For 22222/22273 co-relation queries the response was YES. [2024-11-27 23:16:23,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31349 conditions, 10138 events. 6277/10138 cut-off events. For 22222/22273 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 77771 event pairs, 1924 based on Foata normal form. 108/10102 useless extension candidates. Maximal degree in co-relation 31321. Up to 4334 conditions per place. [2024-11-27 23:16:24,013 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 58 selfloop transitions, 24 changer transitions 34/129 dead transitions. [2024-11-27 23:16:24,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 129 transitions, 908 flow [2024-11-27 23:16:24,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:16:24,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-27 23:16:24,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 247 transitions. [2024-11-27 23:16:24,015 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6098765432098765 [2024-11-27 23:16:24,015 INFO L175 Difference]: Start difference. First operand has 77 places, 61 transitions, 372 flow. Second operand 9 states and 247 transitions. [2024-11-27 23:16:24,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 129 transitions, 908 flow [2024-11-27 23:16:24,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 129 transitions, 870 flow, removed 19 selfloop flow, removed 2 redundant places. [2024-11-27 23:16:24,116 INFO L231 Difference]: Finished difference. Result has 87 places, 68 transitions, 506 flow [2024-11-27 23:16:24,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=506, PETRI_PLACES=87, PETRI_TRANSITIONS=68} [2024-11-27 23:16:24,117 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 36 predicate places. [2024-11-27 23:16:24,117 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 68 transitions, 506 flow [2024-11-27 23:16:24,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 7 states have internal predecessors, (136), 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) [2024-11-27 23:16:24,118 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:24,118 INFO L206 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] [2024-11-27 23:16:24,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:16:24,118 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:24,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:24,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2078012065, now seen corresponding path program 3 times [2024-11-27 23:16:24,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:24,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29414985] [2024-11-27 23:16:24,119 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:16:24,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:24,158 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-27 23:16:24,159 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:16:25,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:25,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:25,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29414985] [2024-11-27 23:16:25,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29414985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:25,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:25,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:16:25,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161607724] [2024-11-27 23:16:25,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:25,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:16:25,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:25,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:16:25,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:16:25,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:16:25,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 68 transitions, 506 flow. Second operand has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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) [2024-11-27 23:16:25,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:25,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:16:25,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:27,664 INFO L124 PetriNetUnfolderBase]: 6636/10886 cut-off events. [2024-11-27 23:16:27,664 INFO L125 PetriNetUnfolderBase]: For 30174/30214 co-relation queries the response was YES. [2024-11-27 23:16:27,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37853 conditions, 10886 events. 6636/10886 cut-off events. For 30174/30214 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 85391 event pairs, 1602 based on Foata normal form. 122/10925 useless extension candidates. Maximal degree in co-relation 37819. Up to 4744 conditions per place. [2024-11-27 23:16:27,734 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 103 selfloop transitions, 20 changer transitions 26/162 dead transitions. [2024-11-27 23:16:27,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 162 transitions, 1237 flow [2024-11-27 23:16:27,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:16:27,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-27 23:16:27,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 317 transitions. [2024-11-27 23:16:27,736 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6404040404040404 [2024-11-27 23:16:27,736 INFO L175 Difference]: Start difference. First operand has 87 places, 68 transitions, 506 flow. Second operand 11 states and 317 transitions. [2024-11-27 23:16:27,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 162 transitions, 1237 flow [2024-11-27 23:16:27,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 162 transitions, 1192 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-11-27 23:16:27,855 INFO L231 Difference]: Finished difference. Result has 90 places, 67 transitions, 514 flow [2024-11-27 23:16:27,855 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=514, PETRI_PLACES=90, PETRI_TRANSITIONS=67} [2024-11-27 23:16:27,856 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 39 predicate places. [2024-11-27 23:16:27,856 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 67 transitions, 514 flow [2024-11-27 23:16:27,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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) [2024-11-27 23:16:27,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:27,856 INFO L206 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] [2024-11-27 23:16:27,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:16:27,857 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:27,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:27,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1498362453, now seen corresponding path program 4 times [2024-11-27 23:16:27,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:27,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381286377] [2024-11-27 23:16:27,857 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 23:16:27,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:27,982 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 23:16:27,982 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:16:28,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:28,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:28,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381286377] [2024-11-27 23:16:28,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381286377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:28,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:28,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:16:28,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106800747] [2024-11-27 23:16:28,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:28,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:16:28,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:28,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:16:28,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:16:28,147 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2024-11-27 23:16:28,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 67 transitions, 514 flow. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-27 23:16:28,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:28,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2024-11-27 23:16:28,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:32,062 INFO L124 PetriNetUnfolderBase]: 21930/31816 cut-off events. [2024-11-27 23:16:32,062 INFO L125 PetriNetUnfolderBase]: For 65867/68597 co-relation queries the response was YES. [2024-11-27 23:16:32,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96068 conditions, 31816 events. 21930/31816 cut-off events. For 65867/68597 co-relation queries the response was YES. Maximal size of possible extension queue 1621. Compared 225341 event pairs, 3582 based on Foata normal form. 1358/32701 useless extension candidates. Maximal degree in co-relation 96035. Up to 17022 conditions per place. [2024-11-27 23:16:32,238 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 104 selfloop transitions, 6 changer transitions 0/129 dead transitions. [2024-11-27 23:16:32,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 129 transitions, 1212 flow [2024-11-27 23:16:32,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:16:32,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 23:16:32,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-11-27 23:16:32,239 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6833333333333333 [2024-11-27 23:16:32,239 INFO L175 Difference]: Start difference. First operand has 90 places, 67 transitions, 514 flow. Second operand 4 states and 123 transitions. [2024-11-27 23:16:32,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 129 transitions, 1212 flow [2024-11-27 23:16:32,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 129 transitions, 1112 flow, removed 11 selfloop flow, removed 9 redundant places. [2024-11-27 23:16:32,346 INFO L231 Difference]: Finished difference. Result has 84 places, 72 transitions, 512 flow [2024-11-27 23:16:32,347 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=512, PETRI_PLACES=84, PETRI_TRANSITIONS=72} [2024-11-27 23:16:32,347 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 33 predicate places. [2024-11-27 23:16:32,347 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 72 transitions, 512 flow [2024-11-27 23:16:32,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2024-11-27 23:16:32,347 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:32,348 INFO L206 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] [2024-11-27 23:16:32,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 23:16:32,348 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:32,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:32,348 INFO L85 PathProgramCache]: Analyzing trace with hash 711161566, now seen corresponding path program 1 times [2024-11-27 23:16:32,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:32,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523133995] [2024-11-27 23:16:32,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:32,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:33,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:33,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:33,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523133995] [2024-11-27 23:16:33,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523133995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:33,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:33,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:16:33,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506910847] [2024-11-27 23:16:33,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:33,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:16:33,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:33,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:16:33,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:16:33,357 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:16:33,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 72 transitions, 512 flow. Second operand has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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) [2024-11-27 23:16:33,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:33,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:16:33,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:37,104 INFO L124 PetriNetUnfolderBase]: 13737/21819 cut-off events. [2024-11-27 23:16:37,104 INFO L125 PetriNetUnfolderBase]: For 57057/58299 co-relation queries the response was YES. [2024-11-27 23:16:37,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73299 conditions, 21819 events. 13737/21819 cut-off events. For 57057/58299 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 173265 event pairs, 6320 based on Foata normal form. 150/20196 useless extension candidates. Maximal degree in co-relation 73266. Up to 15905 conditions per place. [2024-11-27 23:16:37,240 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 103 selfloop transitions, 25 changer transitions 2/148 dead transitions. [2024-11-27 23:16:37,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 148 transitions, 1173 flow [2024-11-27 23:16:37,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:16:37,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-27 23:16:37,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 280 transitions. [2024-11-27 23:16:37,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2024-11-27 23:16:37,242 INFO L175 Difference]: Start difference. First operand has 84 places, 72 transitions, 512 flow. Second operand 10 states and 280 transitions. [2024-11-27 23:16:37,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 148 transitions, 1173 flow [2024-11-27 23:16:37,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 148 transitions, 1171 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 23:16:37,320 INFO L231 Difference]: Finished difference. Result has 98 places, 84 transitions, 744 flow [2024-11-27 23:16:37,321 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=744, PETRI_PLACES=98, PETRI_TRANSITIONS=84} [2024-11-27 23:16:37,321 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 47 predicate places. [2024-11-27 23:16:37,321 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 84 transitions, 744 flow [2024-11-27 23:16:37,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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) [2024-11-27 23:16:37,322 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:37,322 INFO L206 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] [2024-11-27 23:16:37,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 23:16:37,322 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:37,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:37,323 INFO L85 PathProgramCache]: Analyzing trace with hash -652390686, now seen corresponding path program 2 times [2024-11-27 23:16:37,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:37,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871121415] [2024-11-27 23:16:37,323 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:16:37,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:37,354 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:16:37,355 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:16:38,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:38,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:38,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871121415] [2024-11-27 23:16:38,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871121415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:38,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:38,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 23:16:38,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541304329] [2024-11-27 23:16:38,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:38,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 23:16:38,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:38,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 23:16:38,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:16:38,604 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-27 23:16:38,604 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 84 transitions, 744 flow. Second operand has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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) [2024-11-27 23:16:38,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:38,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-27 23:16:38,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:43,905 INFO L124 PetriNetUnfolderBase]: 16642/26364 cut-off events. [2024-11-27 23:16:43,906 INFO L125 PetriNetUnfolderBase]: For 105860/106997 co-relation queries the response was YES. [2024-11-27 23:16:44,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97054 conditions, 26364 events. 16642/26364 cut-off events. For 105860/106997 co-relation queries the response was YES. Maximal size of possible extension queue 1514. Compared 213667 event pairs, 5070 based on Foata normal form. 316/24946 useless extension candidates. Maximal degree in co-relation 97014. Up to 7227 conditions per place. [2024-11-27 23:16:44,078 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 113 selfloop transitions, 61 changer transitions 6/198 dead transitions. [2024-11-27 23:16:44,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 198 transitions, 1770 flow [2024-11-27 23:16:44,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 23:16:44,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-27 23:16:44,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 387 transitions. [2024-11-27 23:16:44,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6142857142857143 [2024-11-27 23:16:44,080 INFO L175 Difference]: Start difference. First operand has 98 places, 84 transitions, 744 flow. Second operand 14 states and 387 transitions. [2024-11-27 23:16:44,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 198 transitions, 1770 flow [2024-11-27 23:16:44,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 198 transitions, 1686 flow, removed 29 selfloop flow, removed 3 redundant places. [2024-11-27 23:16:44,444 INFO L231 Difference]: Finished difference. Result has 117 places, 113 transitions, 1243 flow [2024-11-27 23:16:44,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1243, PETRI_PLACES=117, PETRI_TRANSITIONS=113} [2024-11-27 23:16:44,445 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 66 predicate places. [2024-11-27 23:16:44,445 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 113 transitions, 1243 flow [2024-11-27 23:16:44,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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) [2024-11-27 23:16:44,446 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:44,446 INFO L206 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] [2024-11-27 23:16:44,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:16:44,446 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:44,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:44,447 INFO L85 PathProgramCache]: Analyzing trace with hash 782893224, now seen corresponding path program 1 times [2024-11-27 23:16:44,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:44,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539149905] [2024-11-27 23:16:44,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:44,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:44,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:44,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:44,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539149905] [2024-11-27 23:16:44,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539149905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:44,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:44,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:16:44,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98179931] [2024-11-27 23:16:44,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:44,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:16:44,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:44,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:16:44,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:16:44,662 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2024-11-27 23:16:44,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 113 transitions, 1243 flow. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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) [2024-11-27 23:16:44,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:44,663 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2024-11-27 23:16:44,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:50,294 INFO L124 PetriNetUnfolderBase]: 24567/36296 cut-off events. [2024-11-27 23:16:50,295 INFO L125 PetriNetUnfolderBase]: For 152781/154687 co-relation queries the response was YES. [2024-11-27 23:16:50,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138025 conditions, 36296 events. 24567/36296 cut-off events. For 152781/154687 co-relation queries the response was YES. Maximal size of possible extension queue 1819. Compared 264128 event pairs, 2159 based on Foata normal form. 1651/37589 useless extension candidates. Maximal degree in co-relation 137976. Up to 15553 conditions per place. [2024-11-27 23:16:50,566 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 146 selfloop transitions, 10 changer transitions 41/222 dead transitions. [2024-11-27 23:16:50,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 222 transitions, 2676 flow [2024-11-27 23:16:50,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:16:50,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 23:16:50,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2024-11-27 23:16:50,568 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7022222222222222 [2024-11-27 23:16:50,568 INFO L175 Difference]: Start difference. First operand has 117 places, 113 transitions, 1243 flow. Second operand 5 states and 158 transitions. [2024-11-27 23:16:50,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 222 transitions, 2676 flow [2024-11-27 23:16:51,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 222 transitions, 2224 flow, removed 164 selfloop flow, removed 4 redundant places. [2024-11-27 23:16:51,252 INFO L231 Difference]: Finished difference. Result has 119 places, 95 transitions, 818 flow [2024-11-27 23:16:51,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=959, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=818, PETRI_PLACES=119, PETRI_TRANSITIONS=95} [2024-11-27 23:16:51,253 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 68 predicate places. [2024-11-27 23:16:51,253 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 95 transitions, 818 flow [2024-11-27 23:16:51,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 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) [2024-11-27 23:16:51,253 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:51,253 INFO L206 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] [2024-11-27 23:16:51,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 23:16:51,254 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:51,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:51,254 INFO L85 PathProgramCache]: Analyzing trace with hash 120743309, now seen corresponding path program 1 times [2024-11-27 23:16:51,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:51,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502196108] [2024-11-27 23:16:51,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:51,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:51,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:51,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:51,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502196108] [2024-11-27 23:16:51,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502196108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:51,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:51,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:16:51,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137162533] [2024-11-27 23:16:51,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:51,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:16:51,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:51,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:16:51,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:16:51,602 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2024-11-27 23:16:51,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 95 transitions, 818 flow. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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) [2024-11-27 23:16:51,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:51,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2024-11-27 23:16:51,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:55,661 INFO L124 PetriNetUnfolderBase]: 18466/27459 cut-off events. [2024-11-27 23:16:55,661 INFO L125 PetriNetUnfolderBase]: For 98506/100303 co-relation queries the response was YES. [2024-11-27 23:16:55,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106947 conditions, 27459 events. 18466/27459 cut-off events. For 98506/100303 co-relation queries the response was YES. Maximal size of possible extension queue 1551. Compared 196620 event pairs, 1059 based on Foata normal form. 1361/28538 useless extension candidates. Maximal degree in co-relation 106896. Up to 9344 conditions per place. [2024-11-27 23:16:55,880 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 140 selfloop transitions, 14 changer transitions 21/199 dead transitions. [2024-11-27 23:16:55,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 199 transitions, 1989 flow [2024-11-27 23:16:55,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:16:55,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 23:16:55,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 191 transitions. [2024-11-27 23:16:55,882 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7074074074074074 [2024-11-27 23:16:55,882 INFO L175 Difference]: Start difference. First operand has 119 places, 95 transitions, 818 flow. Second operand 6 states and 191 transitions. [2024-11-27 23:16:55,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 199 transitions, 1989 flow [2024-11-27 23:16:56,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 199 transitions, 1957 flow, removed 12 selfloop flow, removed 10 redundant places. [2024-11-27 23:16:56,013 INFO L231 Difference]: Finished difference. Result has 108 places, 94 transitions, 808 flow [2024-11-27 23:16:56,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=808, PETRI_PLACES=108, PETRI_TRANSITIONS=94} [2024-11-27 23:16:56,014 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 57 predicate places. [2024-11-27 23:16:56,014 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 94 transitions, 808 flow [2024-11-27 23:16:56,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 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) [2024-11-27 23:16:56,014 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:56,014 INFO L206 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] [2024-11-27 23:16:56,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:16:56,015 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:56,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:56,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1949868738, now seen corresponding path program 1 times [2024-11-27 23:16:56,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:56,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731149077] [2024-11-27 23:16:56,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:56,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:16:56,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:16:56,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:16:56,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731149077] [2024-11-27 23:16:56,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731149077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:16:56,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:16:56,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:16:56,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981958461] [2024-11-27 23:16:56,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:16:56,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:16:56,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:16:56,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:16:56,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:16:56,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 45 [2024-11-27 23:16:56,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 94 transitions, 808 flow. Second operand has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 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) [2024-11-27 23:16:56,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 23:16:56,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 45 [2024-11-27 23:16:56,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 23:16:59,414 INFO L124 PetriNetUnfolderBase]: 15788/23392 cut-off events. [2024-11-27 23:16:59,415 INFO L125 PetriNetUnfolderBase]: For 106547/108375 co-relation queries the response was YES. [2024-11-27 23:16:59,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97495 conditions, 23392 events. 15788/23392 cut-off events. For 106547/108375 co-relation queries the response was YES. Maximal size of possible extension queue 1489. Compared 166953 event pairs, 988 based on Foata normal form. 800/23852 useless extension candidates. Maximal degree in co-relation 97450. Up to 8940 conditions per place. [2024-11-27 23:16:59,548 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 70 selfloop transitions, 18 changer transitions 84/183 dead transitions. [2024-11-27 23:16:59,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 183 transitions, 1781 flow [2024-11-27 23:16:59,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:16:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-27 23:16:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 204 transitions. [2024-11-27 23:16:59,549 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2024-11-27 23:16:59,549 INFO L175 Difference]: Start difference. First operand has 108 places, 94 transitions, 808 flow. Second operand 7 states and 204 transitions. [2024-11-27 23:16:59,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 183 transitions, 1781 flow [2024-11-27 23:16:59,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 183 transitions, 1677 flow, removed 33 selfloop flow, removed 6 redundant places. [2024-11-27 23:16:59,937 INFO L231 Difference]: Finished difference. Result has 110 places, 52 transitions, 361 flow [2024-11-27 23:16:59,937 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=710, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=361, PETRI_PLACES=110, PETRI_TRANSITIONS=52} [2024-11-27 23:16:59,938 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 59 predicate places. [2024-11-27 23:16:59,938 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 52 transitions, 361 flow [2024-11-27 23:16:59,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.857142857142858) internal successors, (132), 7 states have internal predecessors, (132), 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) [2024-11-27 23:16:59,938 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 23:16:59,938 INFO L206 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] [2024-11-27 23:16:59,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 23:16:59,939 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-27 23:16:59,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:59,939 INFO L85 PathProgramCache]: Analyzing trace with hash 631202986, now seen corresponding path program 1 times [2024-11-27 23:16:59,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:16:59,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656103934] [2024-11-27 23:16:59,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:59,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:17:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:17:00,222 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:17:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:17:00,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:17:00,368 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:17:00,370 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-27 23:17:00,371 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-11-27 23:17:00,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-27 23:17:00,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-27 23:17:00,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-27 23:17:00,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:17:00,373 INFO L422 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:17:00,543 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 23:17:00,543 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:17:00,552 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:17:00 BasicIcfg [2024-11-27 23:17:00,552 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:17:00,553 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:17:00,553 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:17:00,554 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:17:00,554 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:16:03" (3/4) ... [2024-11-27 23:17:00,555 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-27 23:17:00,714 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-11-27 23:17:00,769 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:17:00,769 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:17:00,769 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:17:00,770 INFO L158 Benchmark]: Toolchain (without parser) took 59576.63ms. Allocated memory was 117.4MB in the beginning and 12.9GB in the end (delta: 12.8GB). Free memory was 91.1MB in the beginning and 11.2GB in the end (delta: -11.1GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-27 23:17:00,771 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 72.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:17:00,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 683.90ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 65.8MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 23:17:00,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.43ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 63.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:17:00,772 INFO L158 Benchmark]: Boogie Preprocessor took 98.75ms. Allocated memory is still 117.4MB. Free memory was 63.3MB in the beginning and 59.5MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:17:00,772 INFO L158 Benchmark]: RCFGBuilder took 1486.16ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 69.1MB in the end (delta: -9.7MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2024-11-27 23:17:00,773 INFO L158 Benchmark]: TraceAbstraction took 57027.82ms. Allocated memory was 117.4MB in the beginning and 12.9GB in the end (delta: 12.8GB). Free memory was 68.4MB in the beginning and 11.2GB in the end (delta: -11.2GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2024-11-27 23:17:00,773 INFO L158 Benchmark]: Witness Printer took 216.16ms. Allocated memory is still 12.9GB. Free memory was 11.2GB in the beginning and 11.2GB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 23:17:00,775 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 72.0MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 683.90ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 65.8MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.43ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 63.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 98.75ms. Allocated memory is still 117.4MB. Free memory was 63.3MB in the beginning and 59.5MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1486.16ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 69.1MB in the end (delta: -9.7MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * TraceAbstraction took 57027.82ms. Allocated memory was 117.4MB in the beginning and 12.9GB in the end (delta: 12.8GB). Free memory was 68.4MB in the beginning and 11.2GB in the end (delta: -11.2GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. * Witness Printer took 216.16ms. Allocated memory is still 12.9GB. Free memory was 11.2GB in the beginning and 11.2GB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L711] 0 int __unbuffered_cnt = 0; [L713] 0 int __unbuffered_p0_EAX = 0; [L714] 0 _Bool __unbuffered_p0_EAX$flush_delayed; [L715] 0 int __unbuffered_p0_EAX$mem_tmp; [L716] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd0; [L717] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd1; [L718] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd2; [L719] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd3; [L720] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd4; [L721] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd0; [L722] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd1; [L723] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd2; [L724] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd3; [L725] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd4; [L726] 0 _Bool __unbuffered_p0_EAX$read_delayed; [L727] 0 int *__unbuffered_p0_EAX$read_delayed_var; [L728] 0 int __unbuffered_p0_EAX$w_buff0; [L729] 0 _Bool __unbuffered_p0_EAX$w_buff0_used; [L730] 0 int __unbuffered_p0_EAX$w_buff1; [L731] 0 _Bool __unbuffered_p0_EAX$w_buff1_used; [L733] 0 int __unbuffered_p2_EAX = 0; [L734] 0 _Bool main$tmp_guard0; [L735] 0 _Bool main$tmp_guard1; [L737] 0 int x = 0; [L739] 0 int y = 0; [L739] 0 int y = 0; [L740] 0 _Bool y$flush_delayed; [L741] 0 int y$mem_tmp; [L742] 0 _Bool y$r_buff0_thd0; [L743] 0 _Bool y$r_buff0_thd1; [L744] 0 _Bool y$r_buff0_thd2; [L745] 0 _Bool y$r_buff0_thd3; [L746] 0 _Bool y$r_buff0_thd4; [L747] 0 _Bool y$r_buff1_thd0; [L748] 0 _Bool y$r_buff1_thd1; [L749] 0 _Bool y$r_buff1_thd2; [L750] 0 _Bool y$r_buff1_thd3; [L751] 0 _Bool y$r_buff1_thd4; [L752] 0 _Bool y$read_delayed; [L753] 0 int *y$read_delayed_var; [L754] 0 int y$w_buff0; [L755] 0 _Bool y$w_buff0_used; [L756] 0 int y$w_buff1; [L757] 0 _Bool y$w_buff1_used; [L758] 0 _Bool weak$$choice0; [L759] 0 _Bool weak$$choice1; [L760] 0 _Bool weak$$choice2; [L851] 0 pthread_t t2161; [L852] FCALL, FORK 0 pthread_create(&t2161, ((void *)0), P0, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t2161=-3, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L764] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L765] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L766] 1 y$flush_delayed = weak$$choice2 [L767] EXPR 1 \read(y) [L767] 1 y$mem_tmp = y [L768] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L768] EXPR 1 \read(y) [L768] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L768] 1 y = !y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff1) [L769] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : y$w_buff0)) [L770] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff1 : y$w_buff1)) [L771] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used)) [L772] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L773] 1 y$r_buff0_thd1 = weak$$choice2 ? y$r_buff0_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff0_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1)) [L774] 1 y$r_buff1_thd1 = weak$$choice2 ? y$r_buff1_thd1 : (!y$w_buff0_used || !y$r_buff0_thd1 && !y$w_buff1_used || !y$r_buff0_thd1 && !y$r_buff1_thd1 ? y$r_buff1_thd1 : (y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)) [L775] 1 __unbuffered_p0_EAX$read_delayed = (_Bool)1 [L776] 1 __unbuffered_p0_EAX$read_delayed_var = &y [L777] EXPR 1 \read(y) [L777] 1 __unbuffered_p0_EAX = y [L778] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L778] EXPR 1 y$flush_delayed ? y$mem_tmp : y [L778] 1 y = y$flush_delayed ? y$mem_tmp : y [L779] 1 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L853] 0 pthread_t t2162; [L854] FCALL, FORK 0 pthread_create(&t2162, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2161=-3, t2162=-2, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L855] 0 pthread_t t2163; [L856] FCALL, FORK 0 pthread_create(&t2163, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2161=-3, t2162=-2, t2163=-1, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L782] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L794] 2 x = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L806] 3 __unbuffered_p2_EAX = x VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L809] 3 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L857] 0 pthread_t t2164; [L858] FCALL, FORK 0 pthread_create(&t2164, ((void *)0), P3, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t2161=-3, t2162=-2, t2163=-1, t2164=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, 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_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L812] 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) [L812] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L812] EXPR 3 \read(y) [L812] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L812] 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) [L812] 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) [L813] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L814] 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 [L815] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L816] 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 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L826] 4 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, 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_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L829] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L829] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L829] EXPR 4 \read(y) [L829] EXPR 4 y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y [L829] EXPR 4 y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L829] 4 y = y$w_buff0_used && y$r_buff0_thd4 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd4 ? y$w_buff1 : y) [L830] 4 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$w_buff0_used [L831] 4 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$w_buff1_used [L832] 4 y$r_buff0_thd4 = y$w_buff0_used && y$r_buff0_thd4 ? (_Bool)0 : y$r_buff0_thd4 [L833] 4 y$r_buff1_thd4 = y$w_buff0_used && y$r_buff0_thd4 || y$w_buff1_used && y$r_buff1_thd4 ? (_Bool)0 : y$r_buff1_thd4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L787] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L799] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L819] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L836] 4 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L860] 0 main$tmp_guard0 = __unbuffered_cnt == 4 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2161=-3, t2162=-2, t2163=-1, t2164=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, 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_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L862] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L862] RET 0 assume_abort_if_not(main$tmp_guard0) [L864] 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) [L864] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L864] EXPR 0 \read(y) [L864] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L864] 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) [L864] 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) [L865] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L866] 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 [L867] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L868] 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 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2161=-3, t2162=-2, t2163=-1, t2164=0, weak$$choice0=1, weak$$choice1=0, weak$$choice2=1, x=2, 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$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L871] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L872] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L873] 0 y$flush_delayed = weak$$choice2 [L874] EXPR 0 \read(y) [L874] 0 y$mem_tmp = y [L875] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L875] EXPR 0 \read(y) [L875] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L875] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L876] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L877] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L878] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L879] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L880] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L881] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L882] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L883] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L883] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L883] EXPR 0 \read(*__unbuffered_p0_EAX$read_delayed_var) [L883] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L883] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L883] 0 __unbuffered_p0_EAX = __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L884] EXPR 0 x == 2 && y == 2 [L884] EXPR 0 x == 2 && y == 2 [L884] EXPR 0 \read(y) [L884] EXPR 0 x == 2 && y == 2 [L884] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p0_EAX == 2 && __unbuffered_p2_EAX == 2) [L885] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L885] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L885] 0 y = y$flush_delayed ? y$mem_tmp : y [L886] 0 y$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=4, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=2, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2161=-3, t2162=-2, t2163=-1, t2164=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] [L888] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=4, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=2, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y={3:0}] [L19] 0 reach_error() VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=4, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff0_thd4=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$r_buff1_thd4=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=2, __unbuffered_p2_EAX=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=1, x=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff0_thd4=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$r_buff1_thd4=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, y={3:0}] - UnprovableResult [Line: 854]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 852]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 858]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 856]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 75 locations, 5 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: 56.7s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 44.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1240 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1207 mSDsluCounter, 333 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 268 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3415 IncrementalHoareTripleChecker+Invalid, 3502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 65 mSDtfsCounter, 3415 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1243occurred in iteration=11, InterpolantAutomatonStates: 119, 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, 0.9s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 358 NumberOfCodeBlocks, 358 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 310 ConstructedInterpolants, 0 QuantifiedInterpolants, 2659 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-27 23:17:00,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7091a73e-d378-422d-b0a3-341ad1123d40/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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