./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx --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 51eb1f25b31a14b06f8a94357507f98faff1b5d262be3400ea1666eb362dde3f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:11:24,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:11:24,551 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:11:24,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:11:24,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:11:24,595 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:11:24,595 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:11:24,596 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:11:24,597 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:11:24,604 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:11:24,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:11:24,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:11:24,607 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:11:24,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:11:24,610 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:11:24,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:11:24,611 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:11:24,611 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:11:24,612 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:11:24,612 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:11:24,612 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:11:24,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:11:24,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:11:24,614 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:11:24,614 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:11:24,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:11:24,615 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:11:24,616 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:11:24,616 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:11:24,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:11:24,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:11:24,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:24,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:11:24,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:11:24,620 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:11:24,620 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:11:24,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:11:24,620 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:11:24,620 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:11:24,621 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:11:24,621 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:11:24,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:11:24,621 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51eb1f25b31a14b06f8a94357507f98faff1b5d262be3400ea1666eb362dde3f [2023-11-21 22:11:24,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:11:24,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:11:24,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:11:24,989 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:11:24,990 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:11:24,991 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i [2023-11-21 22:11:28,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:11:28,478 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:11:28,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i [2023-11-21 22:11:28,503 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/data/825fa55a0/093590df62ed4220bfdb68124a8ef6c6/FLAG76d817490 [2023-11-21 22:11:28,522 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/data/825fa55a0/093590df62ed4220bfdb68124a8ef6c6 [2023-11-21 22:11:28,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:11:28,526 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:11:28,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:28,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:11:28,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:11:28,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:28" (1/1) ... [2023-11-21 22:11:28,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5717c6ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:28, skipping insertion in model container [2023-11-21 22:11:28,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:28" (1/1) ... [2023-11-21 22:11:28,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:11:28,801 WARN L240 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_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i[1014,1027] [2023-11-21 22:11:29,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:29,083 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:11:29,099 WARN L240 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_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/sv-benchmarks/c/pthread-wmm/safe007_power.oepc-thin001_power.oepc.i[1014,1027] [2023-11-21 22:11:29,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:29,250 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:11:29,250 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:11:29,258 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:11:29,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29 WrapperNode [2023-11-21 22:11:29,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:29,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:29,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:11:29,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:11:29,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,366 INFO L138 Inliner]: procedures = 176, calls = 69, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 137 [2023-11-21 22:11:29,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:29,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:11:29,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:11:29,368 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:11:29,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,397 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,414 INFO L187 HeapSplitter]: Split 20 memory accesses to 5 slices as follows [2, 1, 1, 15, 1] [2023-11-21 22:11:29,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,438 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,452 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:11:29,453 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:11:29,453 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:11:29,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:11:29,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (1/1) ... [2023-11-21 22:11:29,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:29,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:29,527 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:11:29,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:11:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:11:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:11:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:11:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:11:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 22:11:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:11:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:11:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:11:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:11:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 22:11:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:11:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:11:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:11:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:11:29,579 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 22:11:29,579 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 22:11:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 22:11:29,580 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 22:11:29,580 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 22:11:29,581 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 22:11:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:11:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:11:29,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:11:29,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:11:29,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 22:11:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:11:29,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:11:29,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:11:29,586 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:11:29,830 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:11:29,831 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:11:30,278 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:11:30,803 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:11:30,803 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:11:30,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:30 BoogieIcfgContainer [2023-11-21 22:11:30,805 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:11:30,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:11:30,807 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:11:30,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:11:30,824 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:11:28" (1/3) ... [2023-11-21 22:11:30,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a43ef1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:30, skipping insertion in model container [2023-11-21 22:11:30,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:29" (2/3) ... [2023-11-21 22:11:30,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a43ef1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:30, skipping insertion in model container [2023-11-21 22:11:30,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:30" (3/3) ... [2023-11-21 22:11:30,827 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_power.oepc-thin001_power.oepc.i [2023-11-21 22:11:30,839 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:11:30,850 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:11:30,850 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:11:30,850 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:11:30,913 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:11:30,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 38 transitions, 88 flow [2023-11-21 22:11:31,003 INFO L124 PetriNetUnfolderBase]: 1/35 cut-off events. [2023-11-21 22:11:31,004 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:11:31,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 35 events. 1/35 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2023-11-21 22:11:31,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 38 transitions, 88 flow [2023-11-21 22:11:31,017 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 32 transitions, 73 flow [2023-11-21 22:11:31,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:11:31,036 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@774ee5e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:11:31,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-21 22:11:31,057 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:11:31,057 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2023-11-21 22:11:31,058 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:11:31,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:31,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:31,059 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 22:11:31,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:31,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1365319510, now seen corresponding path program 1 times [2023-11-21 22:11:31,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:31,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247211857] [2023-11-21 22:11:31,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:31,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:31,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:31,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247211857] [2023-11-21 22:11:31,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247211857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:31,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:31,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:11:31,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619718759] [2023-11-21 22:11:31,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:31,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:11:31,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:31,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:11:31,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:11:31,771 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2023-11-21 22:11:31,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2023-11-21 22:11:31,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:31,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2023-11-21 22:11:31,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:32,352 INFO L124 PetriNetUnfolderBase]: 901/1507 cut-off events. [2023-11-21 22:11:32,353 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-21 22:11:32,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2930 conditions, 1507 events. 901/1507 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 8508 event pairs, 96 based on Foata normal form. 60/1554 useless extension candidates. Maximal degree in co-relation 2919. Up to 846 conditions per place. [2023-11-21 22:11:32,373 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 36 selfloop transitions, 5 changer transitions 1/53 dead transitions. [2023-11-21 22:11:32,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 53 transitions, 205 flow [2023-11-21 22:11:32,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:11:32,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-21 22:11:32,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2023-11-21 22:11:32,387 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6842105263157895 [2023-11-21 22:11:32,387 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 104 transitions. [2023-11-21 22:11:32,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 104 transitions. [2023-11-21 22:11:32,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:32,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 104 transitions. [2023-11-21 22:11:32,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 26.0) internal successors, (104), 4 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) [2023-11-21 22:11:32,402 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 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) [2023-11-21 22:11:32,402 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 38.0) internal successors, (190), 5 states have internal predecessors, (190), 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) [2023-11-21 22:11:32,404 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 73 flow. Second operand 4 states and 104 transitions. [2023-11-21 22:11:32,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 53 transitions, 205 flow [2023-11-21 22:11:32,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 53 transitions, 200 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-21 22:11:32,414 INFO L231 Difference]: Finished difference. Result has 44 places, 35 transitions, 104 flow [2023-11-21 22:11:32,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=35} [2023-11-21 22:11:32,423 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 2 predicate places. [2023-11-21 22:11:32,424 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 35 transitions, 104 flow [2023-11-21 22:11:32,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2023-11-21 22:11:32,424 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:32,424 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:32,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:11:32,425 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 22:11:32,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:32,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1040758574, now seen corresponding path program 1 times [2023-11-21 22:11:32,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:32,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566626447] [2023-11-21 22:11:32,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:32,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:32,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:32,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566626447] [2023-11-21 22:11:32,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566626447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:32,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:32,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:11:32,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288793777] [2023-11-21 22:11:32,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:32,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:11:32,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:32,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:11:32,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:11:32,927 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2023-11-21 22:11:32,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 35 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-11-21 22:11:32,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:32,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2023-11-21 22:11:32,929 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:33,350 INFO L124 PetriNetUnfolderBase]: 630/1076 cut-off events. [2023-11-21 22:11:33,351 INFO L125 PetriNetUnfolderBase]: For 308/313 co-relation queries the response was YES. [2023-11-21 22:11:33,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2521 conditions, 1076 events. 630/1076 cut-off events. For 308/313 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 5433 event pairs, 36 based on Foata normal form. 56/1121 useless extension candidates. Maximal degree in co-relation 2509. Up to 461 conditions per place. [2023-11-21 22:11:33,363 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 45 selfloop transitions, 8 changer transitions 1/65 dead transitions. [2023-11-21 22:11:33,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 65 transitions, 293 flow [2023-11-21 22:11:33,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:11:33,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-21 22:11:33,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2023-11-21 22:11:33,371 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6894736842105263 [2023-11-21 22:11:33,373 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 131 transitions. [2023-11-21 22:11:33,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 131 transitions. [2023-11-21 22:11:33,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:33,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 131 transitions. [2023-11-21 22:11:33,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-11-21 22:11:33,384 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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) [2023-11-21 22:11:33,384 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 38.0) internal successors, (228), 6 states have internal predecessors, (228), 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) [2023-11-21 22:11:33,385 INFO L175 Difference]: Start difference. First operand has 44 places, 35 transitions, 104 flow. Second operand 5 states and 131 transitions. [2023-11-21 22:11:33,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 65 transitions, 293 flow [2023-11-21 22:11:33,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 65 transitions, 283 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-11-21 22:11:33,390 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 144 flow [2023-11-21 22:11:33,391 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=144, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2023-11-21 22:11:33,392 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2023-11-21 22:11:33,392 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 144 flow [2023-11-21 22:11:33,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2023-11-21 22:11:33,392 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:33,393 INFO L208 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] [2023-11-21 22:11:33,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:11:33,393 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 22:11:33,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:33,396 INFO L85 PathProgramCache]: Analyzing trace with hash -457910162, now seen corresponding path program 1 times [2023-11-21 22:11:33,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:33,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92122070] [2023-11-21 22:11:33,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:33,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:33,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:33,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:33,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92122070] [2023-11-21 22:11:33,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92122070] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:33,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:33,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:33,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517854286] [2023-11-21 22:11:33,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:33,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:33,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:33,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:33,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:33,728 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 38 [2023-11-21 22:11:33,728 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 144 flow. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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) [2023-11-21 22:11:33,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:33,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 38 [2023-11-21 22:11:33,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:33,987 INFO L124 PetriNetUnfolderBase]: 359/615 cut-off events. [2023-11-21 22:11:33,987 INFO L125 PetriNetUnfolderBase]: For 574/584 co-relation queries the response was YES. [2023-11-21 22:11:33,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1659 conditions, 615 events. 359/615 cut-off events. For 574/584 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2543 event pairs, 25 based on Foata normal form. 36/640 useless extension candidates. Maximal degree in co-relation 1645. Up to 228 conditions per place. [2023-11-21 22:11:33,993 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 40 selfloop transitions, 11 changer transitions 1/63 dead transitions. [2023-11-21 22:11:33,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 63 transitions, 308 flow [2023-11-21 22:11:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:33,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:33,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 144 transitions. [2023-11-21 22:11:33,996 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.631578947368421 [2023-11-21 22:11:33,996 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 144 transitions. [2023-11-21 22:11:33,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 144 transitions. [2023-11-21 22:11:33,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:33,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 144 transitions. [2023-11-21 22:11:33,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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) [2023-11-21 22:11:33,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 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) [2023-11-21 22:11:34,000 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 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) [2023-11-21 22:11:34,000 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 144 flow. Second operand 6 states and 144 transitions. [2023-11-21 22:11:34,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 63 transitions, 308 flow [2023-11-21 22:11:34,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 63 transitions, 283 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-21 22:11:34,006 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 158 flow [2023-11-21 22:11:34,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=158, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2023-11-21 22:11:34,007 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2023-11-21 22:11:34,007 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 158 flow [2023-11-21 22:11:34,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 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) [2023-11-21 22:11:34,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:34,008 INFO L208 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] [2023-11-21 22:11:34,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:11:34,008 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 22:11:34,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:34,009 INFO L85 PathProgramCache]: Analyzing trace with hash -919280156, now seen corresponding path program 1 times [2023-11-21 22:11:34,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:34,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026343369] [2023-11-21 22:11:34,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:34,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:34,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:34,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026343369] [2023-11-21 22:11:34,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026343369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:34,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:34,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:34,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445674477] [2023-11-21 22:11:34,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:34,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:34,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:34,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:34,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:34,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2023-11-21 22:11:34,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 158 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) [2023-11-21 22:11:34,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:34,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2023-11-21 22:11:34,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:34,775 INFO L124 PetriNetUnfolderBase]: 465/941 cut-off events. [2023-11-21 22:11:34,775 INFO L125 PetriNetUnfolderBase]: For 538/552 co-relation queries the response was YES. [2023-11-21 22:11:34,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2214 conditions, 941 events. 465/941 cut-off events. For 538/552 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5131 event pairs, 179 based on Foata normal form. 8/895 useless extension candidates. Maximal degree in co-relation 2199. Up to 248 conditions per place. [2023-11-21 22:11:34,784 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 32 selfloop transitions, 3 changer transitions 13/66 dead transitions. [2023-11-21 22:11:34,784 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 66 transitions, 324 flow [2023-11-21 22:11:34,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:34,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:34,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 145 transitions. [2023-11-21 22:11:34,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6359649122807017 [2023-11-21 22:11:34,788 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 145 transitions. [2023-11-21 22:11:34,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 145 transitions. [2023-11-21 22:11:34,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:34,789 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 145 transitions. [2023-11-21 22:11:34,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2023-11-21 22:11:34,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 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) [2023-11-21 22:11:34,792 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 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) [2023-11-21 22:11:34,793 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 158 flow. Second operand 6 states and 145 transitions. [2023-11-21 22:11:34,793 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 66 transitions, 324 flow [2023-11-21 22:11:34,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 66 transitions, 260 flow, removed 14 selfloop flow, removed 8 redundant places. [2023-11-21 22:11:34,803 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 116 flow [2023-11-21 22:11:34,803 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=116, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2023-11-21 22:11:34,805 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 9 predicate places. [2023-11-21 22:11:34,805 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 116 flow [2023-11-21 22:11:34,806 INFO L496 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) [2023-11-21 22:11:34,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:34,806 INFO L208 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] [2023-11-21 22:11:34,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:11:34,808 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 22:11:34,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:34,812 INFO L85 PathProgramCache]: Analyzing trace with hash 140977892, now seen corresponding path program 2 times [2023-11-21 22:11:34,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:34,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067131424] [2023-11-21 22:11:34,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:34,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:34,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:11:35,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:11:35,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:11:35,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067131424] [2023-11-21 22:11:35,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067131424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:11:35,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:11:35,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:11:35,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614668588] [2023-11-21 22:11:35,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:11:35,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:11:35,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:11:35,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:11:35,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:11:35,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 38 [2023-11-21 22:11:35,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 116 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) [2023-11-21 22:11:35,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:11:35,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 38 [2023-11-21 22:11:35,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:11:35,487 INFO L124 PetriNetUnfolderBase]: 348/695 cut-off events. [2023-11-21 22:11:35,487 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:11:35,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1416 conditions, 695 events. 348/695 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3367 event pairs, 81 based on Foata normal form. 8/671 useless extension candidates. Maximal degree in co-relation 1402. Up to 215 conditions per place. [2023-11-21 22:11:35,494 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 24 selfloop transitions, 3 changer transitions 17/62 dead transitions. [2023-11-21 22:11:35,494 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 62 transitions, 258 flow [2023-11-21 22:11:35,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:11:35,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:11:35,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 141 transitions. [2023-11-21 22:11:35,496 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.618421052631579 [2023-11-21 22:11:35,496 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 141 transitions. [2023-11-21 22:11:35,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 141 transitions. [2023-11-21 22:11:35,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:11:35,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 141 transitions. [2023-11-21 22:11:35,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 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) [2023-11-21 22:11:35,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 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) [2023-11-21 22:11:35,498 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 38.0) internal successors, (266), 7 states have internal predecessors, (266), 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) [2023-11-21 22:11:35,499 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 116 flow. Second operand 6 states and 141 transitions. [2023-11-21 22:11:35,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 62 transitions, 258 flow [2023-11-21 22:11:35,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 62 transitions, 242 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-21 22:11:35,502 INFO L231 Difference]: Finished difference. Result has 52 places, 38 transitions, 118 flow [2023-11-21 22:11:35,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=118, PETRI_PLACES=52, PETRI_TRANSITIONS=38} [2023-11-21 22:11:35,505 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, 10 predicate places. [2023-11-21 22:11:35,505 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 38 transitions, 118 flow [2023-11-21 22:11:35,505 INFO L496 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) [2023-11-21 22:11:35,505 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:11:35,506 INFO L208 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] [2023-11-21 22:11:35,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:11:35,506 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-21 22:11:35,507 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:35,507 INFO L85 PathProgramCache]: Analyzing trace with hash 1649434992, now seen corresponding path program 3 times [2023-11-21 22:11:35,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:11:35,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450536388] [2023-11-21 22:11:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:35,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:11:35,642 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:11:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:11:35,786 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:11:35,786 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:11:35,787 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-11-21 22:11:35,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-11-21 22:11:35,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-11-21 22:11:35,790 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-21 22:11:35,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:11:35,791 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2023-11-21 22:11:35,798 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:11:35,799 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:11:35,911 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre22 could not be translated [2023-11-21 22:11:35,914 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre24 could not be translated [2023-11-21 22:11:35,916 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre26 could not be translated [2023-11-21 22:11:35,973 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:11:35 BasicIcfg [2023-11-21 22:11:35,973 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:11:35,974 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:11:35,974 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:11:35,974 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:11:35,975 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:30" (3/4) ... [2023-11-21 22:11:35,975 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 22:11:36,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre22 could not be translated [2023-11-21 22:11:36,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre24 could not be translated [2023-11-21 22:11:36,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre26 could not be translated [2023-11-21 22:11:36,089 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:11:36,089 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:11:36,090 INFO L158 Benchmark]: Toolchain (without parser) took 7564.01ms. Allocated memory was 148.9MB in the beginning and 266.3MB in the end (delta: 117.4MB). Free memory was 117.1MB in the beginning and 167.0MB in the end (delta: -49.9MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2023-11-21 22:11:36,091 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory was 119.9MB in the beginning and 119.8MB in the end (delta: 88.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:36,091 INFO L158 Benchmark]: CACSL2BoogieTranslator took 732.62ms. Allocated memory is still 148.9MB. Free memory was 116.9MB in the beginning and 104.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:11:36,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.52ms. Allocated memory is still 148.9MB. Free memory was 104.3MB in the beginning and 101.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:36,092 INFO L158 Benchmark]: Boogie Preprocessor took 84.03ms. Allocated memory is still 148.9MB. Free memory was 101.6MB in the beginning and 97.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:11:36,092 INFO L158 Benchmark]: RCFGBuilder took 1351.99ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 97.7MB in the beginning and 102.1MB in the end (delta: -4.4MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2023-11-21 22:11:36,093 INFO L158 Benchmark]: TraceAbstraction took 5166.13ms. Allocated memory was 180.4MB in the beginning and 266.3MB in the end (delta: 86.0MB). Free memory was 102.1MB in the beginning and 185.9MB in the end (delta: -83.7MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2023-11-21 22:11:36,093 INFO L158 Benchmark]: Witness Printer took 116.05ms. Allocated memory is still 266.3MB. Free memory was 185.9MB in the beginning and 167.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:11:36,095 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 148.9MB. Free memory was 119.9MB in the beginning and 119.8MB in the end (delta: 88.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 732.62ms. Allocated memory is still 148.9MB. Free memory was 116.9MB in the beginning and 104.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.52ms. Allocated memory is still 148.9MB. Free memory was 104.3MB in the beginning and 101.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.03ms. Allocated memory is still 148.9MB. Free memory was 101.6MB in the beginning and 97.7MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1351.99ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 97.7MB in the beginning and 102.1MB in the end (delta: -4.4MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5166.13ms. Allocated memory was 180.4MB in the beginning and 266.3MB in the end (delta: 86.0MB). Free memory was 102.1MB in the beginning and 185.9MB in the end (delta: -83.7MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. * Witness Printer took 116.05ms. Allocated memory is still 266.3MB. Free memory was 185.9MB in the beginning and 167.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre26 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre26 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: [L710] 0 int __unbuffered_cnt = 0; [L712] 0 int __unbuffered_p0_EAX = 0; [L713] 0 _Bool __unbuffered_p0_EAX$flush_delayed; [L714] 0 int __unbuffered_p0_EAX$mem_tmp; [L715] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd0; [L716] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd1; [L717] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd2; [L718] 0 _Bool __unbuffered_p0_EAX$r_buff0_thd3; [L719] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd0; [L720] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd1; [L721] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd2; [L722] 0 _Bool __unbuffered_p0_EAX$r_buff1_thd3; [L723] 0 _Bool __unbuffered_p0_EAX$read_delayed; [L724] 0 int *__unbuffered_p0_EAX$read_delayed_var; [L725] 0 int __unbuffered_p0_EAX$w_buff0; [L726] 0 _Bool __unbuffered_p0_EAX$w_buff0_used; [L727] 0 int __unbuffered_p0_EAX$w_buff1; [L728] 0 _Bool __unbuffered_p0_EAX$w_buff1_used; [L730] 0 int __unbuffered_p1_EAX = 0; [L732] 0 int __unbuffered_p2_EAX = 0; [L733] 0 _Bool main$tmp_guard0; [L734] 0 _Bool main$tmp_guard1; [L736] 0 int x = 0; [L738] 0 int y = 0; [L740] 0 int z = 0; [L740] 0 int z = 0; [L741] 0 _Bool z$flush_delayed; [L742] 0 int z$mem_tmp; [L743] 0 _Bool z$r_buff0_thd0; [L744] 0 _Bool z$r_buff0_thd1; [L745] 0 _Bool z$r_buff0_thd2; [L746] 0 _Bool z$r_buff0_thd3; [L747] 0 _Bool z$r_buff1_thd0; [L748] 0 _Bool z$r_buff1_thd1; [L749] 0 _Bool z$r_buff1_thd2; [L750] 0 _Bool z$r_buff1_thd3; [L751] 0 _Bool z$read_delayed; [L752] 0 int *z$read_delayed_var; [L753] 0 int z$w_buff0; [L754] 0 _Bool z$w_buff0_used; [L755] 0 int z$w_buff1; [L756] 0 _Bool z$w_buff1_used; [L757] 0 _Bool weak$$choice0; [L758] 0 _Bool weak$$choice1; [L759] 0 _Bool weak$$choice2; [L837] 0 pthread_t t1937; [L838] FCALL, FORK 0 pthread_create(&t1937, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=0, __unbuffered_p0_EAX$read_delayed_var={0:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1937={6:0}, weak$$choice0=0, weak$$choice1=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L763] 1 weak$$choice0 = __VERIFIER_nondet_bool() [L764] 1 weak$$choice2 = __VERIFIER_nondet_bool() [L765] 1 z$flush_delayed = weak$$choice2 [L766] EXPR 1 \read(z) [L766] 1 z$mem_tmp = z [L767] 1 weak$$choice1 = __VERIFIER_nondet_bool() [L768] EXPR 1 !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L768] EXPR 1 \read(z) [L768] EXPR 1 !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L768] 1 z = !z$w_buff0_used ? z : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? (weak$$choice0 ? z : (weak$$choice1 ? z$w_buff0 : z$w_buff1)) : (z$w_buff0_used && z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? (weak$$choice0 ? z$w_buff1 : z$w_buff0) : (weak$$choice0 ? z$w_buff0 : z)))) [L769] 1 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff0_used && !z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff0_used && z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? z$w_buff0 : z$w_buff0)))) [L770] 1 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff1 : (z$w_buff0_used && !z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? z$w_buff1 : (z$w_buff0_used && z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? z$w_buff1 : z$w_buff1)))) [L771] 1 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? weak$$choice0 || !weak$$choice1 : (z$w_buff0_used && z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? weak$$choice0 : weak$$choice0)))) [L772] 1 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? weak$$choice0 : (z$w_buff0_used && z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)))) [L773] 1 z$r_buff0_thd1 = weak$$choice2 ? z$r_buff0_thd1 : (!z$w_buff0_used ? z$r_buff0_thd1 : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? z$r_buff0_thd1 : (z$w_buff0_used && z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)))) [L774] 1 z$r_buff1_thd1 = weak$$choice2 ? z$r_buff1_thd1 : (!z$w_buff0_used ? z$r_buff1_thd1 : (z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : (z$w_buff0_used && !z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? (weak$$choice0 ? z$r_buff1_thd1 : (_Bool)0) : (z$w_buff0_used && z$r_buff1_thd1 && z$w_buff1_used && !z$r_buff0_thd1 ? (_Bool)0 : (_Bool)0)))) [L775] 1 __unbuffered_p0_EAX$read_delayed = (_Bool)1 [L776] 1 __unbuffered_p0_EAX$read_delayed_var = &z [L777] EXPR 1 \read(z) [L777] 1 __unbuffered_p0_EAX = z [L778] EXPR 1 z$flush_delayed ? z$mem_tmp : z [L778] EXPR 1 \read(z) [L778] EXPR 1 z$flush_delayed ? z$mem_tmp : z [L778] 1 z = z$flush_delayed ? z$mem_tmp : z [L779] 1 z$flush_delayed = (_Bool)0 VAL [__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$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$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_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L839] 0 pthread_t t1938; [L840] FCALL, FORK 0 pthread_create(&t1938, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1937={6:0}, t1938={7:0}, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L841] 0 pthread_t t1939; [L842] FCALL, FORK 0 pthread_create(&t1939, ((void *)0), P2, ((void *)0)) VAL [__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$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$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_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1937={6:0}, t1938={7:0}, t1939={5:0}, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L782] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L794] 2 __unbuffered_p1_EAX = x VAL [__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$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$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_p1_EAX=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L797] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L809] 3 __unbuffered_p2_EAX = y VAL [__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$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$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_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L812] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L815] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L815] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L815] EXPR 3 \read(z) [L815] EXPR 3 z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z [L815] EXPR 3 z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L815] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L816] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L817] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L818] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L819] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [__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$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$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_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L787] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L802] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__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$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$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_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L822] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L844] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX$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_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$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$w_buff1_used=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1937={6:0}, t1938={7:0}, t1939={5:0}, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L846] CALL 0 assume_abort_if_not(main$tmp_guard0) [L4] COND FALSE 0 !(!cond) [L846] RET 0 assume_abort_if_not(main$tmp_guard0) [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L848] EXPR 0 \read(z) [L848] EXPR 0 z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z [L848] EXPR 0 z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L848] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L849] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L850] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L851] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L852] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [__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_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$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_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1937={6:0}, t1938={7:0}, t1939={5:0}, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L855] 0 weak$$choice1 = __VERIFIER_nondet_bool() [L856] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L856] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L856] EXPR 0 \read(*__unbuffered_p0_EAX$read_delayed_var) [L856] EXPR 0 weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX [L856] EXPR 0 __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L856] 0 __unbuffered_p0_EAX = __unbuffered_p0_EAX$read_delayed ? (weak$$choice1 ? *__unbuffered_p0_EAX$read_delayed_var : __unbuffered_p0_EAX) : __unbuffered_p0_EAX [L857] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 1 && __unbuffered_p1_EAX == 1 && __unbuffered_p2_EAX == 1) VAL [__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$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$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=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1937={6:0}, t1938={7:0}, t1939={5:0}, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L859] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L19] COND TRUE 0 !expression VAL [\old(expression)=0, __unbuffered_cnt=3, __unbuffered_p0_EAX$flush_delayed=0, __unbuffered_p0_EAX$mem_tmp=0, __unbuffered_p0_EAX$r_buff0_thd0=0, __unbuffered_p0_EAX$r_buff0_thd1=0, __unbuffered_p0_EAX$r_buff0_thd2=0, __unbuffered_p0_EAX$r_buff0_thd3=0, __unbuffered_p0_EAX$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$read_delayed_var={3:0}, __unbuffered_p0_EAX$w_buff0=0, __unbuffered_p0_EAX$w_buff0_used=0, __unbuffered_p0_EAX$w_buff1=0, __unbuffered_p0_EAX$w_buff1_used=0, __unbuffered_p0_EAX=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice1=1, weak$$choice2=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] [L19] 0 reach_error() VAL [\old(expression)=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$r_buff1_thd0=0, __unbuffered_p0_EAX$r_buff1_thd1=0, __unbuffered_p0_EAX$r_buff1_thd2=0, __unbuffered_p0_EAX$r_buff1_thd3=0, __unbuffered_p0_EAX$read_delayed=1, __unbuffered_p0_EAX$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=1, __unbuffered_p1_EAX=1, __unbuffered_p2_EAX=1, arg={0:0}, arg={0:0}, 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=0, x=1, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z={3:0}] - UnprovableResult [Line: 842]: 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: 840]: 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: 838]: 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 7 procedures, 62 locations, 4 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: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 253 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 436 IncrementalHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 13 mSDtfsCounter, 436 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=3, InterpolantAutomatonStates: 27, 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: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-21 22:11:36,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7c8359a-4d74-43c3-b1a1-fbd69b5e4b95/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE