./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-theta/wsc.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_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/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_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-theta/wsc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/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_385c1a39-23d2-4e25-971c-306730478c14/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 cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:19:06,352 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:19:06,438 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:19:06,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:19:06,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:19:06,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:19:06,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:19:06,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:19:06,494 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:19:06,494 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:19:06,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:19:06,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:19:06,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:19:06,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:19:06,495 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:19:06,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:19:06,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:19:06,496 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:19:06,497 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:19:06,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:19:06,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:19:06,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:19:06,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:19:06,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:19:06,498 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:19:06,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:19:06,498 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:19:06,498 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:19:06,498 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:19:06,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:19:06,499 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:19:06,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:19:06,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:19:06,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:19:06,499 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:19:06,499 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:19:06,499 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:19:06,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:19:06,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:19:06,500 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:19:06,500 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:19:06,500 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:19:06,500 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:19:06,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:19:06,500 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:19:06,500 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:19:06,500 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:19:06,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:19:06,501 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_385c1a39-23d2-4e25-971c-306730478c14/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 -> cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 [2024-11-28 02:19:06,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:19:06,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:19:06,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:19:06,852 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:19:06,853 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:19:06,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-theta/wsc.i [2024-11-28 02:19:09,807 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/data/a9bb56196/7f5cfb8111974edaad51e15ab724c2bf/FLAG5a6c42d76 [2024-11-28 02:19:10,235 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:19:10,236 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/sv-benchmarks/c/pthread-theta/wsc.i [2024-11-28 02:19:10,260 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/data/a9bb56196/7f5cfb8111974edaad51e15ab724c2bf/FLAG5a6c42d76 [2024-11-28 02:19:10,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/data/a9bb56196/7f5cfb8111974edaad51e15ab724c2bf [2024-11-28 02:19:10,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:19:10,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:19:10,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:19:10,385 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:19:10,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:19:10,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:19:10" (1/1) ... [2024-11-28 02:19:10,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa34941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:10, skipping insertion in model container [2024-11-28 02:19:10,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:19:10" (1/1) ... [2024-11-28 02:19:10,441 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:19:10,889 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_385c1a39-23d2-4e25-971c-306730478c14/sv-benchmarks/c/pthread-theta/wsc.i[33949,33962] [2024-11-28 02:19:10,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:19:10,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:19:11,005 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_385c1a39-23d2-4e25-971c-306730478c14/sv-benchmarks/c/pthread-theta/wsc.i[33949,33962] [2024-11-28 02:19:11,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:19:11,048 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:19:11,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11 WrapperNode [2024-11-28 02:19:11,049 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:19:11,050 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:19:11,050 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:19:11,050 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:19:11,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,078 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,119 INFO L138 Inliner]: procedures = 171, calls = 26, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 122 [2024-11-28 02:19:11,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:19:11,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:19:11,122 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:19:11,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:19:11,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,137 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,166 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2024-11-28 02:19:11,166 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,176 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,181 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,187 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:19:11,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:19:11,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:19:11,201 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:19:11,202 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (1/1) ... [2024-11-28 02:19:11,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:19:11,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:19:11,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:19:11,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:19:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:19:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure f0 [2024-11-28 02:19:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure f0 [2024-11-28 02:19:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-28 02:19:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-28 02:19:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-28 02:19:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-28 02:19:11,264 INFO L130 BoogieDeclarations]: Found specification of procedure f3 [2024-11-28 02:19:11,264 INFO L138 BoogieDeclarations]: Found implementation of procedure f3 [2024-11-28 02:19:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure f4 [2024-11-28 02:19:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure f4 [2024-11-28 02:19:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure f5 [2024-11-28 02:19:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure f5 [2024-11-28 02:19:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:19:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:19:11,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:19:11,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:19:11,266 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 02:19:11,423 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:19:11,425 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:19:11,698 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:19:11,698 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:19:11,896 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:19:11,896 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 02:19:11,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:19:11 BoogieIcfgContainer [2024-11-28 02:19:11,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:19:11,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:19:11,900 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:19:11,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:19:11,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:19:10" (1/3) ... [2024-11-28 02:19:11,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576997da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:19:11, skipping insertion in model container [2024-11-28 02:19:11,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:19:11" (2/3) ... [2024-11-28 02:19:11,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576997da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:19:11, skipping insertion in model container [2024-11-28 02:19:11,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:19:11" (3/3) ... [2024-11-28 02:19:11,909 INFO L128 eAbstractionObserver]: Analyzing ICFG wsc.i [2024-11-28 02:19:11,924 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:19:11,925 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG wsc.i that has 7 procedures, 50 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-28 02:19:11,926 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:19:12,003 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-28 02:19:12,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 49 transitions, 140 flow [2024-11-28 02:19:12,150 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2024-11-28 02:19:12,153 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 02:19:12,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 43 events. 0/43 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-11-28 02:19:12,156 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 49 transitions, 140 flow [2024-11-28 02:19:12,160 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 42 transitions, 120 flow [2024-11-28 02:19:12,176 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:19:12,200 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;@7283f2e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:19:12,200 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-28 02:19:12,235 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:19:12,235 INFO L124 PetriNetUnfolderBase]: 0/41 cut-off events. [2024-11-28 02:19:12,235 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-28 02:19:12,235 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:19:12,236 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:19:12,237 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:19:12,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:19:12,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1475436085, now seen corresponding path program 1 times [2024-11-28 02:19:12,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:19:12,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503387095] [2024-11-28 02:19:12,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:19:12,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:19:12,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:19:12,805 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 02:19:12,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:19:12,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503387095] [2024-11-28 02:19:12,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503387095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:19:12,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:19:12,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:19:12,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804322729] [2024-11-28 02:19:12,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:19:12,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:19:12,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:19:12,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:19:12,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:19:12,851 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-28 02:19:12,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 42 transitions, 120 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:12,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:19:12,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-28 02:19:12,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:19:14,728 INFO L124 PetriNetUnfolderBase]: 7314/10487 cut-off events. [2024-11-28 02:19:14,729 INFO L125 PetriNetUnfolderBase]: For 1083/1083 co-relation queries the response was YES. [2024-11-28 02:19:14,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21076 conditions, 10487 events. 7314/10487 cut-off events. For 1083/1083 co-relation queries the response was YES. Maximal size of possible extension queue 640. Compared 63541 event pairs, 5496 based on Foata normal form. 24/10494 useless extension candidates. Maximal degree in co-relation 20723. Up to 9584 conditions per place. [2024-11-28 02:19:14,842 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 39 selfloop transitions, 3 changer transitions 0/53 dead transitions. [2024-11-28 02:19:14,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 53 transitions, 238 flow [2024-11-28 02:19:14,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:19:14,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:19:14,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 97 transitions. [2024-11-28 02:19:14,859 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6598639455782312 [2024-11-28 02:19:14,862 INFO L175 Difference]: Start difference. First operand has 61 places, 42 transitions, 120 flow. Second operand 3 states and 97 transitions. [2024-11-28 02:19:14,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 53 transitions, 238 flow [2024-11-28 02:19:14,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 206 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-28 02:19:14,904 INFO L231 Difference]: Finished difference. Result has 52 places, 44 transitions, 121 flow [2024-11-28 02:19:14,907 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=121, PETRI_PLACES=52, PETRI_TRANSITIONS=44} [2024-11-28 02:19:14,914 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -9 predicate places. [2024-11-28 02:19:14,915 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 44 transitions, 121 flow [2024-11-28 02:19:14,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:14,915 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:19:14,916 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:19:14,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:19:14,916 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:19:14,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:19:14,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1140421877, now seen corresponding path program 2 times [2024-11-28 02:19:14,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:19:14,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236308837] [2024-11-28 02:19:14,920 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:19:14,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:19:14,976 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:19:14,976 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:19:15,106 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 02:19:15,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:19:15,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236308837] [2024-11-28 02:19:15,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236308837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:19:15,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:19:15,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:19:15,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867860294] [2024-11-28 02:19:15,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:19:15,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:19:15,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:19:15,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:19:15,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:19:15,113 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-28 02:19:15,114 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 44 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:15,114 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:19:15,114 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-28 02:19:15,114 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:19:16,553 INFO L124 PetriNetUnfolderBase]: 7944/11746 cut-off events. [2024-11-28 02:19:16,554 INFO L125 PetriNetUnfolderBase]: For 2826/2826 co-relation queries the response was YES. [2024-11-28 02:19:16,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26023 conditions, 11746 events. 7944/11746 cut-off events. For 2826/2826 co-relation queries the response was YES. Maximal size of possible extension queue 710. Compared 77949 event pairs, 2796 based on Foata normal form. 1063/12462 useless extension candidates. Maximal degree in co-relation 9497. Up to 6511 conditions per place. [2024-11-28 02:19:16,641 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 52 selfloop transitions, 5 changer transitions 0/68 dead transitions. [2024-11-28 02:19:16,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 68 transitions, 299 flow [2024-11-28 02:19:16,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:19:16,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:19:16,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-28 02:19:16,644 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7414965986394558 [2024-11-28 02:19:16,644 INFO L175 Difference]: Start difference. First operand has 52 places, 44 transitions, 121 flow. Second operand 3 states and 109 transitions. [2024-11-28 02:19:16,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 68 transitions, 299 flow [2024-11-28 02:19:16,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 68 transitions, 296 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:19:16,648 INFO L231 Difference]: Finished difference. Result has 55 places, 47 transitions, 160 flow [2024-11-28 02:19:16,649 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=55, PETRI_TRANSITIONS=47} [2024-11-28 02:19:16,650 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -6 predicate places. [2024-11-28 02:19:16,651 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 47 transitions, 160 flow [2024-11-28 02:19:16,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:16,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:19:16,651 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:19:16,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:19:16,652 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:19:16,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:19:16,653 INFO L85 PathProgramCache]: Analyzing trace with hash -812808633, now seen corresponding path program 3 times [2024-11-28 02:19:16,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:19:16,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137219701] [2024-11-28 02:19:16,654 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:19:16,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:19:16,696 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-28 02:19:16,700 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:19:16,876 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 02:19:16,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:19:16,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137219701] [2024-11-28 02:19:16,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137219701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:19:16,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:19:16,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:19:16,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742695695] [2024-11-28 02:19:16,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:19:16,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:19:16,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:19:16,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:19:16,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:19:16,887 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-28 02:19:16,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 47 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:16,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:19:16,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-28 02:19:16,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:19:18,294 INFO L124 PetriNetUnfolderBase]: 9485/13612 cut-off events. [2024-11-28 02:19:18,295 INFO L125 PetriNetUnfolderBase]: For 8861/8995 co-relation queries the response was YES. [2024-11-28 02:19:18,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33801 conditions, 13612 events. 9485/13612 cut-off events. For 8861/8995 co-relation queries the response was YES. Maximal size of possible extension queue 694. Compared 82417 event pairs, 5211 based on Foata normal form. 48/13521 useless extension candidates. Maximal degree in co-relation 10826. Up to 12751 conditions per place. [2024-11-28 02:19:18,388 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 42 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2024-11-28 02:19:18,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 59 transitions, 285 flow [2024-11-28 02:19:18,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:19:18,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:19:18,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2024-11-28 02:19:18,390 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6462585034013606 [2024-11-28 02:19:18,390 INFO L175 Difference]: Start difference. First operand has 55 places, 47 transitions, 160 flow. Second operand 3 states and 95 transitions. [2024-11-28 02:19:18,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 59 transitions, 285 flow [2024-11-28 02:19:18,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 59 transitions, 263 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-28 02:19:18,404 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 161 flow [2024-11-28 02:19:18,404 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2024-11-28 02:19:18,405 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -5 predicate places. [2024-11-28 02:19:18,405 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 161 flow [2024-11-28 02:19:18,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:18,406 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:19:18,406 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:19:18,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:19:18,406 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:19:18,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:19:18,407 INFO L85 PathProgramCache]: Analyzing trace with hash 180387377, now seen corresponding path program 4 times [2024-11-28 02:19:18,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:19:18,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2379629] [2024-11-28 02:19:18,408 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 02:19:18,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:19:18,454 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 02:19:18,454 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:19:18,511 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 02:19:18,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:19:18,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2379629] [2024-11-28 02:19:18,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2379629] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:19:18,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:19:18,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:19:18,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36313012] [2024-11-28 02:19:18,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:19:18,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:19:18,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:19:18,513 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:19:18,513 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:19:18,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-28 02:19:18,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:18,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:19:18,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-28 02:19:18,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:19:20,306 INFO L124 PetriNetUnfolderBase]: 14795/21087 cut-off events. [2024-11-28 02:19:20,306 INFO L125 PetriNetUnfolderBase]: For 10034/10297 co-relation queries the response was YES. [2024-11-28 02:19:20,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51220 conditions, 21087 events. 14795/21087 cut-off events. For 10034/10297 co-relation queries the response was YES. Maximal size of possible extension queue 1156. Compared 137588 event pairs, 6642 based on Foata normal form. 839/21281 useless extension candidates. Maximal degree in co-relation 21733. Up to 10887 conditions per place. [2024-11-28 02:19:20,404 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 55 selfloop transitions, 2 changer transitions 0/73 dead transitions. [2024-11-28 02:19:20,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 73 transitions, 350 flow [2024-11-28 02:19:20,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:19:20,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:19:20,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-11-28 02:19:20,405 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-28 02:19:20,406 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 161 flow. Second operand 3 states and 105 transitions. [2024-11-28 02:19:20,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 73 transitions, 350 flow [2024-11-28 02:19:20,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 73 transitions, 347 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:19:20,408 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 170 flow [2024-11-28 02:19:20,408 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2024-11-28 02:19:20,409 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2024-11-28 02:19:20,409 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 170 flow [2024-11-28 02:19:20,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:20,410 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:19:20,410 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:19:20,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:19:20,410 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:19:20,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:19:20,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1396104417, now seen corresponding path program 5 times [2024-11-28 02:19:20,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:19:20,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758866617] [2024-11-28 02:19:20,411 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 02:19:20,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:19:20,430 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:19:20,430 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:19:20,526 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 02:19:20,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:19:20,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758866617] [2024-11-28 02:19:20,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758866617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:19:20,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:19:20,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:19:20,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294263728] [2024-11-28 02:19:20,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:19:20,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:19:20,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:19:20,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:19:20,529 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:19:20,531 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-28 02:19:20,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:20,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:19:20,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-28 02:19:20,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:19:21,758 INFO L124 PetriNetUnfolderBase]: 8531/13509 cut-off events. [2024-11-28 02:19:21,758 INFO L125 PetriNetUnfolderBase]: For 7055/7293 co-relation queries the response was YES. [2024-11-28 02:19:21,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32298 conditions, 13509 events. 8531/13509 cut-off events. For 7055/7293 co-relation queries the response was YES. Maximal size of possible extension queue 757. Compared 97252 event pairs, 4087 based on Foata normal form. 821/14101 useless extension candidates. Maximal degree in co-relation 13690. Up to 7292 conditions per place. [2024-11-28 02:19:21,812 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 49 selfloop transitions, 3 changer transitions 0/66 dead transitions. [2024-11-28 02:19:21,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 66 transitions, 309 flow [2024-11-28 02:19:21,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:19:21,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:19:21,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2024-11-28 02:19:21,813 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7074829931972789 [2024-11-28 02:19:21,814 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 170 flow. Second operand 3 states and 104 transitions. [2024-11-28 02:19:21,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 66 transitions, 309 flow [2024-11-28 02:19:21,840 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 66 transitions, 307 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:19:21,841 INFO L231 Difference]: Finished difference. Result has 59 places, 47 transitions, 158 flow [2024-11-28 02:19:21,842 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=59, PETRI_TRANSITIONS=47} [2024-11-28 02:19:21,842 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -2 predicate places. [2024-11-28 02:19:21,842 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 47 transitions, 158 flow [2024-11-28 02:19:21,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:21,843 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:19:21,843 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:19:21,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:19:21,843 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:19:21,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:19:21,844 INFO L85 PathProgramCache]: Analyzing trace with hash -303885443, now seen corresponding path program 6 times [2024-11-28 02:19:21,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:19:21,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627723337] [2024-11-28 02:19:21,844 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 02:19:21,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:19:21,866 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2024-11-28 02:19:21,866 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:19:21,974 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 02:19:21,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:19:21,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627723337] [2024-11-28 02:19:21,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627723337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:19:21,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:19:21,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:19:21,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325401328] [2024-11-28 02:19:21,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:19:21,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:19:21,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:19:21,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:19:21,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:19:21,980 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-28 02:19:21,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 47 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:21,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:19:21,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-28 02:19:21,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:19:23,022 INFO L124 PetriNetUnfolderBase]: 12071/17876 cut-off events. [2024-11-28 02:19:23,022 INFO L125 PetriNetUnfolderBase]: For 7478/7736 co-relation queries the response was YES. [2024-11-28 02:19:23,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43456 conditions, 17876 events. 12071/17876 cut-off events. For 7478/7736 co-relation queries the response was YES. Maximal size of possible extension queue 953. Compared 120599 event pairs, 7065 based on Foata normal form. 597/17670 useless extension candidates. Maximal degree in co-relation 16050. Up to 9784 conditions per place. [2024-11-28 02:19:23,074 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 47 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2024-11-28 02:19:23,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 65 transitions, 313 flow [2024-11-28 02:19:23,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:19:23,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:19:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2024-11-28 02:19:23,076 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6870748299319728 [2024-11-28 02:19:23,076 INFO L175 Difference]: Start difference. First operand has 59 places, 47 transitions, 158 flow. Second operand 3 states and 101 transitions. [2024-11-28 02:19:23,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 65 transitions, 313 flow [2024-11-28 02:19:23,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 65 transitions, 310 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:19:23,081 INFO L231 Difference]: Finished difference. Result has 61 places, 48 transitions, 167 flow [2024-11-28 02:19:23,081 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=61, PETRI_TRANSITIONS=48} [2024-11-28 02:19:23,081 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 0 predicate places. [2024-11-28 02:19:23,081 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 48 transitions, 167 flow [2024-11-28 02:19:23,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:23,082 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:19:23,082 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:19:23,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:19:23,082 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:19:23,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:19:23,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1417580093, now seen corresponding path program 7 times [2024-11-28 02:19:23,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:19:23,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941428854] [2024-11-28 02:19:23,083 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 02:19:23,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:19:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:19:23,235 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 02:19:23,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:19:23,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941428854] [2024-11-28 02:19:23,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941428854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:19:23,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:19:23,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:19:23,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267100263] [2024-11-28 02:19:23,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:19:23,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:19:23,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:19:23,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:19:23,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:19:23,240 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-28 02:19:23,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:23,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:19:23,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-28 02:19:23,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:19:24,687 INFO L124 PetriNetUnfolderBase]: 15915/24170 cut-off events. [2024-11-28 02:19:24,688 INFO L125 PetriNetUnfolderBase]: For 12050/12207 co-relation queries the response was YES. [2024-11-28 02:19:24,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59912 conditions, 24170 events. 15915/24170 cut-off events. For 12050/12207 co-relation queries the response was YES. Maximal size of possible extension queue 1314. Compared 175952 event pairs, 9310 based on Foata normal form. 848/24250 useless extension candidates. Maximal degree in co-relation 31991. Up to 13864 conditions per place. [2024-11-28 02:19:24,743 INFO L140 encePairwiseOnDemand]: 46/49 looper letters, 49 selfloop transitions, 2 changer transitions 5/68 dead transitions. [2024-11-28 02:19:24,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 68 transitions, 331 flow [2024-11-28 02:19:24,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:19:24,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:19:24,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-28 02:19:24,744 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7006802721088435 [2024-11-28 02:19:24,744 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 167 flow. Second operand 3 states and 103 transitions. [2024-11-28 02:19:24,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 68 transitions, 331 flow [2024-11-28 02:19:24,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 68 transitions, 329 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:19:24,766 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 154 flow [2024-11-28 02:19:24,766 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2024-11-28 02:19:24,766 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2024-11-28 02:19:24,767 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 154 flow [2024-11-28 02:19:24,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:24,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:19:24,767 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:19:24,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:19:24,767 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-28 02:19:24,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:19:24,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1459743561, now seen corresponding path program 8 times [2024-11-28 02:19:24,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:19:24,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812706324] [2024-11-28 02:19:24,768 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:19:24,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:19:24,785 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 02:19:24,785 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:19:24,836 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 02:19:24,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:19:24,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812706324] [2024-11-28 02:19:24,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812706324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:19:24,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:19:24,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:19:24,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132079826] [2024-11-28 02:19:24,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:19:24,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:19:24,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:19:24,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:19:24,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:19:24,839 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-28 02:19:24,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 154 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:24,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:19:24,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-28 02:19:24,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:19:25,600 INFO L124 PetriNetUnfolderBase]: 8846/13272 cut-off events. [2024-11-28 02:19:25,600 INFO L125 PetriNetUnfolderBase]: For 6346/6509 co-relation queries the response was YES. [2024-11-28 02:19:25,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33641 conditions, 13272 events. 8846/13272 cut-off events. For 6346/6509 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 85696 event pairs, 5622 based on Foata normal form. 518/13267 useless extension candidates. Maximal degree in co-relation 19438. Up to 7957 conditions per place. [2024-11-28 02:19:25,632 INFO L140 encePairwiseOnDemand]: 47/49 looper letters, 0 selfloop transitions, 0 changer transitions 53/53 dead transitions. [2024-11-28 02:19:25,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 53 transitions, 264 flow [2024-11-28 02:19:25,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:19:25,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:19:25,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 93 transitions. [2024-11-28 02:19:25,633 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2024-11-28 02:19:25,633 INFO L175 Difference]: Start difference. First operand has 63 places, 44 transitions, 154 flow. Second operand 3 states and 93 transitions. [2024-11-28 02:19:25,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 53 transitions, 264 flow [2024-11-28 02:19:25,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 53 transitions, 256 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-28 02:19:25,641 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-11-28 02:19:25,641 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-11-28 02:19:25,641 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2024-11-28 02:19:25,642 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-11-28 02:19:25,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 02:19:25,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 7 remaining) [2024-11-28 02:19:25,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 7 remaining) [2024-11-28 02:19:25,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-28 02:19:25,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-28 02:19:25,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-28 02:19:25,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-28 02:19:25,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 7 remaining) [2024-11-28 02:19:25,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:19:25,645 INFO L422 BasicCegarLoop]: Path program histogram: [8] [2024-11-28 02:19:25,649 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-28 02:19:25,649 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:19:25,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:19:25 BasicIcfg [2024-11-28 02:19:25,654 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:19:25,654 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:19:25,655 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:19:25,655 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:19:25,655 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:19:11" (3/4) ... [2024-11-28 02:19:25,657 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:19:25,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f0 [2024-11-28 02:19:25,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-28 02:19:25,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-28 02:19:25,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f3 [2024-11-28 02:19:25,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f4 [2024-11-28 02:19:25,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f5 [2024-11-28 02:19:25,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 57 nodes and edges [2024-11-28 02:19:25,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-28 02:19:25,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-28 02:19:25,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:19:25,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:19:25,737 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:19:25,738 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:19:25,738 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:19:25,738 INFO L158 Benchmark]: Toolchain (without parser) took 15358.72ms. Allocated memory was 142.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 105.9MB in the beginning and 432.6MB in the end (delta: -326.7MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-28 02:19:25,739 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:19:25,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 665.30ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 85.2MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:19:25,739 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.19ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 82.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:19:25,739 INFO L158 Benchmark]: Boogie Preprocessor took 76.54ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 81.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:19:25,740 INFO L158 Benchmark]: RCFGBuilder took 699.71ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 46.2MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-28 02:19:25,740 INFO L158 Benchmark]: TraceAbstraction took 13754.53ms. Allocated memory was 142.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 45.5MB in the beginning and 436.8MB in the end (delta: -391.3MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-28 02:19:25,740 INFO L158 Benchmark]: Witness Printer took 83.20ms. Allocated memory is still 1.6GB. Free memory was 436.8MB in the beginning and 432.6MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:19:25,746 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 665.30ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 85.2MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.19ms. Allocated memory is still 142.6MB. Free memory was 85.2MB in the beginning and 82.9MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 76.54ms. Allocated memory is still 142.6MB. Free memory was 82.9MB in the beginning and 81.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 699.71ms. Allocated memory is still 142.6MB. Free memory was 80.9MB in the beginning and 46.2MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 13754.53ms. Allocated memory was 142.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 45.5MB in the beginning and 436.8MB in the end (delta: -391.3MB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 83.20ms. Allocated memory is still 1.6GB. Free memory was 436.8MB in the beginning and 432.6MB 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: 802]: 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 13 procedures, 84 locations, 7 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: 13.6s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 11.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 106 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 99 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 543 IncrementalHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 7 mSDtfsCounter, 543 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 336 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, 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 02:19:25,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_385c1a39-23d2-4e25-971c-306730478c14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE