./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe010_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe010_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:07:46,977 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:07:47,066 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:07:47,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:07:47,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:07:47,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:07:47,125 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:07:47,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:07:47,126 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:07:47,126 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:07:47,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:07:47,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:07:47,128 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:07:47,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:07:47,128 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:07:47,129 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:07:47,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:07:47,129 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:07:47,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:07:47,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:07:47,130 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:07:47,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:07:47,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:07:47,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:07:47,130 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:07:47,130 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:07:47,130 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:07:47,131 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:07:47,131 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:07:47,131 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:07:47,131 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:07:47,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:07:47,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:07:47,132 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:07:47,132 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:07:47,132 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:07:47,132 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:07:47,132 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:07:47,133 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:07:47,133 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:07:47,133 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:07:47,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:07:47,133 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:07:47,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:07:47,134 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:07:47,134 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:07:47,134 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:07:47,134 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:07:47,135 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cdc4de0b080284406e5a223cc9cce4b369430ad26c4d0f5d169e90b4fc0e513 [2024-11-28 05:07:47,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:07:47,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:07:47,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:07:47,497 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:07:47,497 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:07:47,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-wmm/safe010_tso.i [2024-11-28 05:07:50,718 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/data/8e7b69a59/84455651814840d186c349f6ff0fbe51/FLAGd88ccc9eb [2024-11-28 05:07:51,076 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:07:51,077 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/sv-benchmarks/c/pthread-wmm/safe010_tso.i [2024-11-28 05:07:51,096 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/data/8e7b69a59/84455651814840d186c349f6ff0fbe51/FLAGd88ccc9eb [2024-11-28 05:07:51,129 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/data/8e7b69a59/84455651814840d186c349f6ff0fbe51 [2024-11-28 05:07:51,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:07:51,133 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:07:51,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:07:51,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:07:51,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:07:51,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ebf59c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51, skipping insertion in model container [2024-11-28 05:07:51,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,195 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:07:51,392 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/sv-benchmarks/c/pthread-wmm/safe010_tso.i[945,958] [2024-11-28 05:07:51,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:07:51,658 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:07:51,669 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/sv-benchmarks/c/pthread-wmm/safe010_tso.i[945,958] [2024-11-28 05:07:51,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:07:51,731 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:07:51,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51 WrapperNode [2024-11-28 05:07:51,732 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:07:51,733 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:07:51,733 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:07:51,733 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:07:51,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,782 INFO L138 Inliner]: procedures = 174, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2024-11-28 05:07:51,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:07:51,783 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:07:51,784 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:07:51,784 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:07:51,793 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,798 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,817 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 05:07:51,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,823 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,841 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:07:51,841 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:07:51,842 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:07:51,842 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:07:51,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (1/1) ... [2024-11-28 05:07:51,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:07:51,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:07:51,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:07:51,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:07:51,929 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 05:07:51,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:07:51,929 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-28 05:07:51,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-28 05:07:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-28 05:07:51,930 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-28 05:07:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:07:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 05:07:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:07:51,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:07:51,931 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 05:07:52,090 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:07:52,092 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:07:52,295 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 05:07:52,295 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:07:52,414 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:07:52,415 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 05:07:52,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:07:52 BoogieIcfgContainer [2024-11-28 05:07:52,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:07:52,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:07:52,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:07:52,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:07:52,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:07:51" (1/3) ... [2024-11-28 05:07:52,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa3dfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:07:52, skipping insertion in model container [2024-11-28 05:07:52,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:07:51" (2/3) ... [2024-11-28 05:07:52,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa3dfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:07:52, skipping insertion in model container [2024-11-28 05:07:52,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:07:52" (3/3) ... [2024-11-28 05:07:52,427 INFO L128 eAbstractionObserver]: Analyzing ICFG safe010_tso.i [2024-11-28 05:07:52,443 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:07:52,444 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe010_tso.i that has 3 procedures, 29 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 05:07:52,445 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 05:07:52,499 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-28 05:07:52,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 29 transitions, 66 flow [2024-11-28 05:07:52,586 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-28 05:07:52,588 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:07:52,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 27 events. 1/27 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-11-28 05:07:52,592 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 29 transitions, 66 flow [2024-11-28 05:07:52,595 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 31 places, 24 transitions, 54 flow [2024-11-28 05:07:52,602 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:07:52,626 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@157a9529, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:07:52,626 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-28 05:07:52,645 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 05:07:52,645 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2024-11-28 05:07:52,645 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:07:52,645 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:07:52,646 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:52,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 05:07:52,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:52,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1562315502, now seen corresponding path program 1 times [2024-11-28 05:07:52,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:52,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448702995] [2024-11-28 05:07:52,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:52,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:53,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:53,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:53,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448702995] [2024-11-28 05:07:53,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448702995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:53,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:53,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:07:53,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22357423] [2024-11-28 05:07:53,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:53,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:07:53,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:53,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:07:53,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:07:53,373 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 29 [2024-11-28 05:07:53,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 24 transitions, 54 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:53,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:07:53,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 29 [2024-11-28 05:07:53,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:07:53,575 INFO L124 PetriNetUnfolderBase]: 40/117 cut-off events. [2024-11-28 05:07:53,575 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 05:07:53,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 117 events. 40/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 533 event pairs, 19 based on Foata normal form. 6/115 useless extension candidates. Maximal degree in co-relation 204. Up to 51 conditions per place. [2024-11-28 05:07:53,581 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 13 selfloop transitions, 2 changer transitions 11/38 dead transitions. [2024-11-28 05:07:53,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 134 flow [2024-11-28 05:07:53,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 05:07:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 05:07:53,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 126 transitions. [2024-11-28 05:07:53,597 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6206896551724138 [2024-11-28 05:07:53,599 INFO L175 Difference]: Start difference. First operand has 31 places, 24 transitions, 54 flow. Second operand 7 states and 126 transitions. [2024-11-28 05:07:53,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 134 flow [2024-11-28 05:07:53,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 38 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 05:07:53,607 INFO L231 Difference]: Finished difference. Result has 40 places, 24 transitions, 68 flow [2024-11-28 05:07:53,610 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=68, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2024-11-28 05:07:53,614 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 9 predicate places. [2024-11-28 05:07:53,614 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 68 flow [2024-11-28 05:07:53,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:53,615 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:07:53,615 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:53,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:07:53,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 05:07:53,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:53,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1595150253, now seen corresponding path program 1 times [2024-11-28 05:07:53,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:53,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581248053] [2024-11-28 05:07:53,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:53,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:53,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:53,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:53,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581248053] [2024-11-28 05:07:53,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581248053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:53,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:53,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:07:53,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690899254] [2024-11-28 05:07:53,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:53,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:07:53,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:53,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:07:53,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:07:53,967 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 29 [2024-11-28 05:07:53,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 68 flow. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:53,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:07:53,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 29 [2024-11-28 05:07:53,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:07:54,232 INFO L124 PetriNetUnfolderBase]: 66/186 cut-off events. [2024-11-28 05:07:54,233 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-28 05:07:54,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 186 events. 66/186 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 903 event pairs, 13 based on Foata normal form. 6/185 useless extension candidates. Maximal degree in co-relation 380. Up to 51 conditions per place. [2024-11-28 05:07:54,238 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 17 selfloop transitions, 3 changer transitions 15/46 dead transitions. [2024-11-28 05:07:54,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 46 transitions, 199 flow [2024-11-28 05:07:54,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 05:07:54,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-28 05:07:54,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 141 transitions. [2024-11-28 05:07:54,241 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6077586206896551 [2024-11-28 05:07:54,242 INFO L175 Difference]: Start difference. First operand has 40 places, 24 transitions, 68 flow. Second operand 8 states and 141 transitions. [2024-11-28 05:07:54,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 46 transitions, 199 flow [2024-11-28 05:07:54,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 46 transitions, 177 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-28 05:07:54,246 INFO L231 Difference]: Finished difference. Result has 43 places, 24 transitions, 78 flow [2024-11-28 05:07:54,246 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=78, PETRI_PLACES=43, PETRI_TRANSITIONS=24} [2024-11-28 05:07:54,247 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 12 predicate places. [2024-11-28 05:07:54,247 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 24 transitions, 78 flow [2024-11-28 05:07:54,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:54,247 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:07:54,247 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:54,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:07:54,248 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 05:07:54,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:54,248 INFO L85 PathProgramCache]: Analyzing trace with hash 320472926, now seen corresponding path program 1 times [2024-11-28 05:07:54,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:54,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646551531] [2024-11-28 05:07:54,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:54,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:54,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:54,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:54,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646551531] [2024-11-28 05:07:54,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646551531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:54,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:54,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:07:54,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598549238] [2024-11-28 05:07:54,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:54,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 05:07:54,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:54,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 05:07:54,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 05:07:54,499 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 29 [2024-11-28 05:07:54,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 24 transitions, 78 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:54,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:07:54,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 29 [2024-11-28 05:07:54,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:07:54,615 INFO L124 PetriNetUnfolderBase]: 54/152 cut-off events. [2024-11-28 05:07:54,615 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-28 05:07:54,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344 conditions, 152 events. 54/152 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 570 event pairs, 6 based on Foata normal form. 9/151 useless extension candidates. Maximal degree in co-relation 327. Up to 55 conditions per place. [2024-11-28 05:07:54,618 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 17 selfloop transitions, 4 changer transitions 1/34 dead transitions. [2024-11-28 05:07:54,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 34 transitions, 144 flow [2024-11-28 05:07:54,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:07:54,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 05:07:54,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-11-28 05:07:54,620 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7241379310344828 [2024-11-28 05:07:54,620 INFO L175 Difference]: Start difference. First operand has 43 places, 24 transitions, 78 flow. Second operand 4 states and 84 transitions. [2024-11-28 05:07:54,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 34 transitions, 144 flow [2024-11-28 05:07:54,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 34 transitions, 124 flow, removed 6 selfloop flow, removed 8 redundant places. [2024-11-28 05:07:54,623 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 84 flow [2024-11-28 05:07:54,623 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2024-11-28 05:07:54,624 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 5 predicate places. [2024-11-28 05:07:54,624 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 84 flow [2024-11-28 05:07:54,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:54,625 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:07:54,625 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:54,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:07:54,625 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 05:07:54,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:54,626 INFO L85 PathProgramCache]: Analyzing trace with hash -239865495, now seen corresponding path program 1 times [2024-11-28 05:07:54,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:54,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653099287] [2024-11-28 05:07:54,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:54,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:54,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:54,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:54,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653099287] [2024-11-28 05:07:54,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653099287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:54,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:54,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 05:07:54,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750384876] [2024-11-28 05:07:54,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:54,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:07:54,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:54,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:07:54,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:07:54,811 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 29 [2024-11-28 05:07:54,811 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:54,811 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:07:54,811 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 29 [2024-11-28 05:07:54,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:07:54,919 INFO L124 PetriNetUnfolderBase]: 38/107 cut-off events. [2024-11-28 05:07:54,920 INFO L125 PetriNetUnfolderBase]: For 45/61 co-relation queries the response was YES. [2024-11-28 05:07:54,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 107 events. 38/107 cut-off events. For 45/61 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 270 event pairs, 2 based on Foata normal form. 10/109 useless extension candidates. Maximal degree in co-relation 246. Up to 28 conditions per place. [2024-11-28 05:07:54,921 INFO L140 encePairwiseOnDemand]: 24/29 looper letters, 16 selfloop transitions, 6 changer transitions 1/35 dead transitions. [2024-11-28 05:07:54,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 35 transitions, 153 flow [2024-11-28 05:07:54,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:07:54,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 05:07:54,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 100 transitions. [2024-11-28 05:07:54,923 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6896551724137931 [2024-11-28 05:07:54,923 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 84 flow. Second operand 5 states and 100 transitions. [2024-11-28 05:07:54,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 35 transitions, 153 flow [2024-11-28 05:07:54,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 35 transitions, 140 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-28 05:07:54,925 INFO L231 Difference]: Finished difference. Result has 39 places, 26 transitions, 96 flow [2024-11-28 05:07:54,926 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=73, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=96, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2024-11-28 05:07:54,927 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 8 predicate places. [2024-11-28 05:07:54,927 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 96 flow [2024-11-28 05:07:54,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:07:54,927 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 05:07:54,927 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:07:54,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:07:54,928 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-11-28 05:07:54,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:07:54,928 INFO L85 PathProgramCache]: Analyzing trace with hash 370093004, now seen corresponding path program 1 times [2024-11-28 05:07:54,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:07:54,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489871339] [2024-11-28 05:07:54,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:07:54,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:07:54,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:07:55,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:07:55,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:07:55,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489871339] [2024-11-28 05:07:55,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489871339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:07:55,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:07:55,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:07:55,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866325928] [2024-11-28 05:07:55,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:07:55,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:07:55,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:07:55,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:07:55,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:07:55,220 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 29 [2024-11-28 05:07:55,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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) [2024-11-28 05:07:55,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 05:07:55,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 29 [2024-11-28 05:07:55,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 05:07:55,344 INFO L124 PetriNetUnfolderBase]: 32/98 cut-off events. [2024-11-28 05:07:55,344 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-11-28 05:07:55,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 98 events. 32/98 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 263 event pairs, 9 based on Foata normal form. 4/96 useless extension candidates. Maximal degree in co-relation 218. Up to 32 conditions per place. [2024-11-28 05:07:55,345 INFO L140 encePairwiseOnDemand]: 23/29 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2024-11-28 05:07:55,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 32 transitions, 152 flow [2024-11-28 05:07:55,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:07:55,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 05:07:55,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 82 transitions. [2024-11-28 05:07:55,350 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5655172413793104 [2024-11-28 05:07:55,351 INFO L175 Difference]: Start difference. First operand has 39 places, 26 transitions, 96 flow. Second operand 5 states and 82 transitions. [2024-11-28 05:07:55,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 32 transitions, 152 flow [2024-11-28 05:07:55,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 32 transitions, 124 flow, removed 5 selfloop flow, removed 6 redundant places. [2024-11-28 05:07:55,352 INFO L231 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2024-11-28 05:07:55,352 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=29, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2024-11-28 05:07:55,356 INFO L279 CegarLoopForPetriNet]: 31 programPoint places, 4 predicate places. [2024-11-28 05:07:55,356 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 0 transitions, 0 flow [2024-11-28 05:07:55,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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) [2024-11-28 05:07:55,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-11-28 05:07:55,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-11-28 05:07:55,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-11-28 05:07:55,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:07:55,363 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-28 05:07:55,367 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 05:07:55,367 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:07:55,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:07:55 BasicIcfg [2024-11-28 05:07:55,374 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:07:55,375 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:07:55,375 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:07:55,375 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:07:55,376 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:07:52" (3/4) ... [2024-11-28 05:07:55,379 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 05:07:55,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-28 05:07:55,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-28 05:07:55,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-28 05:07:55,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-28 05:07:55,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 05:07:55,387 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 05:07:55,467 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:07:55,468 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:07:55,468 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:07:55,469 INFO L158 Benchmark]: Toolchain (without parser) took 4335.70ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 96.5MB in the end (delta: 8.7MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2024-11-28 05:07:55,469 INFO L158 Benchmark]: CDTParser took 1.75ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:07:55,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 597.51ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 84.9MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:07:55,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.93ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 83.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:07:55,470 INFO L158 Benchmark]: Boogie Preprocessor took 57.33ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 81.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:07:55,471 INFO L158 Benchmark]: RCFGBuilder took 573.78ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 65.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:07:55,471 INFO L158 Benchmark]: TraceAbstraction took 2955.25ms. Allocated memory is still 142.6MB. Free memory was 65.4MB in the beginning and 100.6MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:07:55,472 INFO L158 Benchmark]: Witness Printer took 93.13ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 96.5MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:07:55,473 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.75ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 597.51ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 84.9MB in the end (delta: 20.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.93ms. Allocated memory is still 142.6MB. Free memory was 84.9MB in the beginning and 83.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.33ms. Allocated memory is still 142.6MB. Free memory was 83.2MB in the beginning and 81.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 573.78ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 65.8MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2955.25ms. Allocated memory is still 142.6MB. Free memory was 65.4MB in the beginning and 100.6MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 93.13ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 96.5MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 45 locations, 3 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: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 249 IncrementalHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 12 mSDtfsCounter, 249 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=4, InterpolantAutomatonStates: 29, 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, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 257 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-28 05:07:55,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cfacfd5-20e3-4750-b411-bb989ed9f956/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE