./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd --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 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:10:43,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:10:43,439 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:10:43,448 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:10:43,449 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:10:43,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:10:43,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:10:43,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:10:43,494 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:10:43,494 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:10:43,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:10:43,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:10:43,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:10:43,495 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:10:43,495 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:10:43,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:10:43,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:10:43,496 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:10:43,496 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:10:43,496 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:10:43,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:10:43,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:10:43,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:10:43,497 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:10:43,497 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:10:43,497 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:10:43,497 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:10:43,498 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:10:43,498 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:10:43,498 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:10:43,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:10:43,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:10:43,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:10:43,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:10:43,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:10:43,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:10:43,499 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:10:43,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:10:43,499 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:10:43,500 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:10:43,500 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:10:43,500 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:10:43,500 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_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd 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 -> 55711f117aca8cc6da45707674eed41f8615ce4fb09ace088988b9afc0dc0851 [2024-11-13 14:10:43,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:10:43,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:10:43,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:10:43,851 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:10:43,851 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:10:43,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i Unable to find full path for "g++" [2024-11-13 14:10:46,072 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:10:46,400 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:10:46,401 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-13 14:10:46,418 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/data/c6b330d49/9b06516f0ff04d05bd286c135a8b5764/FLAG65222b5fb [2024-11-13 14:10:46,437 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/data/c6b330d49/9b06516f0ff04d05bd286c135a8b5764 [2024-11-13 14:10:46,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:10:46,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:10:46,443 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:10:46,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:10:46,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:10:46,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:10:46" (1/1) ... [2024-11-13 14:10:46,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eee921b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:46, skipping insertion in model container [2024-11-13 14:10:46,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:10:46" (1/1) ... [2024-11-13 14:10:46,494 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:10:46,689 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_9b178356-1ad5-4d70-9774-cc2bf1d785e7/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-13 14:10:46,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:10:46,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:10:46,927 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_9b178356-1ad5-4d70-9774-cc2bf1d785e7/sv-benchmarks/c/pthread-wmm/safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-13 14:10:46,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:10:47,019 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:10:47,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47 WrapperNode [2024-11-13 14:10:47,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:10:47,021 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:10:47,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:10:47,022 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:10:47,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,070 INFO L138 Inliner]: procedures = 176, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-11-13 14:10:47,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:10:47,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:10:47,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:10:47,074 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:10:47,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,119 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 14:10:47,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,138 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,145 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:10:47,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:10:47,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:10:47,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:10:47,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (1/1) ... [2024-11-13 14:10:47,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:10:47,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:10:47,206 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:10:47,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:10:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 14:10:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:10:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-13 14:10:47,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-13 14:10:47,239 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-13 14:10:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-13 14:10:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-13 14:10:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-13 14:10:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-13 14:10:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-13 14:10:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:10:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 14:10:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:10:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:10:47,242 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 14:10:47,405 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:10:47,407 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:10:47,696 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:10:47,697 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:10:47,846 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:10:47,846 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 14:10:47,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:10:47 BoogieIcfgContainer [2024-11-13 14:10:47,847 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:10:47,851 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:10:47,851 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:10:47,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:10:47,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:10:46" (1/3) ... [2024-11-13 14:10:47,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2d9b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:10:47, skipping insertion in model container [2024-11-13 14:10:47,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:10:47" (2/3) ... [2024-11-13 14:10:47,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2d9b10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:10:47, skipping insertion in model container [2024-11-13 14:10:47,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:10:47" (3/3) ... [2024-11-13 14:10:47,867 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-13 14:10:47,889 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:10:47,891 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG safe016_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 5 procedures, 45 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-13 14:10:47,891 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:10:47,964 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 14:10:48,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 45 transitions, 106 flow [2024-11-13 14:10:48,063 INFO L124 PetriNetUnfolderBase]: 1/41 cut-off events. [2024-11-13 14:10:48,067 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:10:48,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 41 events. 1/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-13 14:10:48,071 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 45 transitions, 106 flow [2024-11-13 14:10:48,075 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 38 transitions, 88 flow [2024-11-13 14:10:48,106 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:10:48,121 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;@50ce6118, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:10:48,121 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-13 14:10:48,148 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:10:48,151 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-11-13 14:10:48,152 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:10:48,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:10:48,153 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:10:48,153 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:10:48,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:10:48,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1535385628, now seen corresponding path program 1 times [2024-11-13 14:10:48,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:10:48,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051233604] [2024-11-13 14:10:48,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:10:48,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:10:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:10:49,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:10:49,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:10:49,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051233604] [2024-11-13 14:10:49,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051233604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:10:49,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:10:49,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:10:49,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646174701] [2024-11-13 14:10:49,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:10:49,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:10:49,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:10:49,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:10:49,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:10:49,140 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-13 14:10:49,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 88 flow. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2024-11-13 14:10:49,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:10:49,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-13 14:10:49,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:10:51,068 INFO L124 PetriNetUnfolderBase]: 5226/8789 cut-off events. [2024-11-13 14:10:51,068 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-11-13 14:10:51,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16357 conditions, 8789 events. 5226/8789 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 566. Compared 66880 event pairs, 1643 based on Foata normal form. 244/8848 useless extension candidates. Maximal degree in co-relation 16345. Up to 3470 conditions per place. [2024-11-13 14:10:51,167 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 36 selfloop transitions, 7 changer transitions 43/101 dead transitions. [2024-11-13 14:10:51,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 101 transitions, 395 flow [2024-11-13 14:10:51,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:10:51,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 14:10:51,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 221 transitions. [2024-11-13 14:10:51,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7015873015873015 [2024-11-13 14:10:51,199 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 88 flow. Second operand 7 states and 221 transitions. [2024-11-13 14:10:51,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 101 transitions, 395 flow [2024-11-13 14:10:51,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 101 transitions, 388 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-13 14:10:51,225 INFO L231 Difference]: Finished difference. Result has 59 places, 44 transitions, 170 flow [2024-11-13 14:10:51,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=170, PETRI_PLACES=59, PETRI_TRANSITIONS=44} [2024-11-13 14:10:51,240 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 8 predicate places. [2024-11-13 14:10:51,244 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 44 transitions, 170 flow [2024-11-13 14:10:51,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2024-11-13 14:10:51,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:10:51,244 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:10:51,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:10:51,247 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:10:51,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:10:51,247 INFO L85 PathProgramCache]: Analyzing trace with hash -2027653339, now seen corresponding path program 1 times [2024-11-13 14:10:51,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:10:51,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731967734] [2024-11-13 14:10:51,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:10:51,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:10:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:10:51,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:10:51,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:10:51,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731967734] [2024-11-13 14:10:51,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731967734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:10:51,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:10:51,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:10:51,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161758997] [2024-11-13 14:10:51,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:10:51,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:10:51,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:10:51,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:10:51,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:10:51,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-13 14:10:51,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 44 transitions, 170 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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) [2024-11-13 14:10:51,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:10:51,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-13 14:10:51,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:10:53,348 INFO L124 PetriNetUnfolderBase]: 4702/8148 cut-off events. [2024-11-13 14:10:53,349 INFO L125 PetriNetUnfolderBase]: For 10285/10293 co-relation queries the response was YES. [2024-11-13 14:10:53,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23292 conditions, 8148 events. 4702/8148 cut-off events. For 10285/10293 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 62719 event pairs, 619 based on Foata normal form. 249/8287 useless extension candidates. Maximal degree in co-relation 23276. Up to 2759 conditions per place. [2024-11-13 14:10:53,441 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 45 selfloop transitions, 11 changer transitions 68/139 dead transitions. [2024-11-13 14:10:53,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 139 transitions, 908 flow [2024-11-13 14:10:53,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:10:53,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:10:53,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 304 transitions. [2024-11-13 14:10:53,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6755555555555556 [2024-11-13 14:10:53,517 INFO L175 Difference]: Start difference. First operand has 59 places, 44 transitions, 170 flow. Second operand 10 states and 304 transitions. [2024-11-13 14:10:53,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 139 transitions, 908 flow [2024-11-13 14:10:53,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 139 transitions, 838 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:10:53,595 INFO L231 Difference]: Finished difference. Result has 71 places, 52 transitions, 290 flow [2024-11-13 14:10:53,597 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=290, PETRI_PLACES=71, PETRI_TRANSITIONS=52} [2024-11-13 14:10:53,599 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2024-11-13 14:10:53,600 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 52 transitions, 290 flow [2024-11-13 14:10:53,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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) [2024-11-13 14:10:53,601 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:10:53,601 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:10:53,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:10:53,601 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:10:53,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:10:53,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1525257915, now seen corresponding path program 1 times [2024-11-13 14:10:53,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:10:53,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573277046] [2024-11-13 14:10:53,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:10:53,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:10:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:10:53,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:10:53,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:10:53,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573277046] [2024-11-13 14:10:53,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573277046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:10:53,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:10:53,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:10:53,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820616667] [2024-11-13 14:10:53,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:10:53,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:10:53,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:10:53,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:10:53,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:10:53,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-13 14:10:53,967 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 52 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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) [2024-11-13 14:10:53,967 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:10:53,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-13 14:10:53,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:10:55,668 INFO L124 PetriNetUnfolderBase]: 4085/7019 cut-off events. [2024-11-13 14:10:55,668 INFO L125 PetriNetUnfolderBase]: For 21673/21703 co-relation queries the response was YES. [2024-11-13 14:10:55,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23517 conditions, 7019 events. 4085/7019 cut-off events. For 21673/21703 co-relation queries the response was YES. Maximal size of possible extension queue 425. Compared 51890 event pairs, 903 based on Foata normal form. 203/7150 useless extension candidates. Maximal degree in co-relation 23492. Up to 2622 conditions per place. [2024-11-13 14:10:55,763 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 57 selfloop transitions, 18 changer transitions 66/156 dead transitions. [2024-11-13 14:10:55,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 156 transitions, 1244 flow [2024-11-13 14:10:55,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:10:55,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:10:55,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 310 transitions. [2024-11-13 14:10:55,767 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2024-11-13 14:10:55,767 INFO L175 Difference]: Start difference. First operand has 71 places, 52 transitions, 290 flow. Second operand 10 states and 310 transitions. [2024-11-13 14:10:55,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 156 transitions, 1244 flow [2024-11-13 14:10:55,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 156 transitions, 1212 flow, removed 16 selfloop flow, removed 0 redundant places. [2024-11-13 14:10:55,851 INFO L231 Difference]: Finished difference. Result has 83 places, 64 transitions, 502 flow [2024-11-13 14:10:55,851 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=502, PETRI_PLACES=83, PETRI_TRANSITIONS=64} [2024-11-13 14:10:55,853 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 32 predicate places. [2024-11-13 14:10:55,853 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 64 transitions, 502 flow [2024-11-13 14:10:55,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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) [2024-11-13 14:10:55,854 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:10:55,854 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:10:55,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:10:55,855 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:10:55,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:10:55,855 INFO L85 PathProgramCache]: Analyzing trace with hash 419521526, now seen corresponding path program 1 times [2024-11-13 14:10:55,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:10:55,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786435321] [2024-11-13 14:10:55,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:10:55,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:10:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:10:56,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:10:56,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:10:56,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786435321] [2024-11-13 14:10:56,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786435321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:10:56,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:10:56,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:10:56,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322549259] [2024-11-13 14:10:56,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:10:56,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:10:56,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:10:56,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:10:56,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:10:56,246 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-13 14:10:56,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 64 transitions, 502 flow. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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) [2024-11-13 14:10:56,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:10:56,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-13 14:10:56,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:10:57,567 INFO L124 PetriNetUnfolderBase]: 3539/6159 cut-off events. [2024-11-13 14:10:57,568 INFO L125 PetriNetUnfolderBase]: For 28767/28797 co-relation queries the response was YES. [2024-11-13 14:10:57,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23206 conditions, 6159 events. 3539/6159 cut-off events. For 28767/28797 co-relation queries the response was YES. Maximal size of possible extension queue 357. Compared 45317 event pairs, 467 based on Foata normal form. 122/6200 useless extension candidates. Maximal degree in co-relation 23170. Up to 2214 conditions per place. [2024-11-13 14:10:57,644 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 56 selfloop transitions, 21 changer transitions 52/144 dead transitions. [2024-11-13 14:10:57,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 144 transitions, 1356 flow [2024-11-13 14:10:57,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:10:57,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:10:57,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 292 transitions. [2024-11-13 14:10:57,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6488888888888888 [2024-11-13 14:10:57,809 INFO L175 Difference]: Start difference. First operand has 83 places, 64 transitions, 502 flow. Second operand 10 states and 292 transitions. [2024-11-13 14:10:57,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 144 transitions, 1356 flow [2024-11-13 14:10:57,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 144 transitions, 1284 flow, removed 36 selfloop flow, removed 4 redundant places. [2024-11-13 14:10:57,917 INFO L231 Difference]: Finished difference. Result has 91 places, 71 transitions, 660 flow [2024-11-13 14:10:57,918 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=462, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=660, PETRI_PLACES=91, PETRI_TRANSITIONS=71} [2024-11-13 14:10:57,919 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 40 predicate places. [2024-11-13 14:10:57,919 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 71 transitions, 660 flow [2024-11-13 14:10:57,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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) [2024-11-13 14:10:57,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:10:57,920 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:10:57,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:10:57,920 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:10:57,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:10:57,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1833840239, now seen corresponding path program 1 times [2024-11-13 14:10:57,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:10:57,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278807223] [2024-11-13 14:10:57,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:10:57,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:10:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:10:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:10:58,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:10:58,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278807223] [2024-11-13 14:10:58,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278807223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:10:58,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:10:58,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:10:58,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534008881] [2024-11-13 14:10:58,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:10:58,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:10:58,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:10:58,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:10:58,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:10:58,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 45 [2024-11-13 14:10:58,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 71 transitions, 660 flow. Second operand has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-13 14:10:58,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:10:58,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 45 [2024-11-13 14:10:58,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:10:58,969 INFO L124 PetriNetUnfolderBase]: 1922/3676 cut-off events. [2024-11-13 14:10:58,969 INFO L125 PetriNetUnfolderBase]: For 17325/17657 co-relation queries the response was YES. [2024-11-13 14:10:58,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13258 conditions, 3676 events. 1922/3676 cut-off events. For 17325/17657 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 27851 event pairs, 836 based on Foata normal form. 182/3540 useless extension candidates. Maximal degree in co-relation 13215. Up to 1866 conditions per place. [2024-11-13 14:10:59,012 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 27 selfloop transitions, 5 changer transitions 21/103 dead transitions. [2024-11-13 14:10:59,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 103 transitions, 912 flow [2024-11-13 14:10:59,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:10:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 14:10:59,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 218 transitions. [2024-11-13 14:10:59,014 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.692063492063492 [2024-11-13 14:10:59,015 INFO L175 Difference]: Start difference. First operand has 91 places, 71 transitions, 660 flow. Second operand 7 states and 218 transitions. [2024-11-13 14:10:59,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 103 transitions, 912 flow [2024-11-13 14:10:59,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 103 transitions, 871 flow, removed 18 selfloop flow, removed 7 redundant places. [2024-11-13 14:10:59,086 INFO L231 Difference]: Finished difference. Result has 89 places, 71 transitions, 656 flow [2024-11-13 14:10:59,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=631, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=656, PETRI_PLACES=89, PETRI_TRANSITIONS=71} [2024-11-13 14:10:59,087 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 38 predicate places. [2024-11-13 14:10:59,088 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 71 transitions, 656 flow [2024-11-13 14:10:59,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 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) [2024-11-13 14:10:59,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:10:59,088 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:10:59,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:10:59,088 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:10:59,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:10:59,093 INFO L85 PathProgramCache]: Analyzing trace with hash -384186726, now seen corresponding path program 1 times [2024-11-13 14:10:59,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:10:59,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752157370] [2024-11-13 14:10:59,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:10:59,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:10:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:10:59,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:10:59,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:10:59,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752157370] [2024-11-13 14:10:59,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752157370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:10:59,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:10:59,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:10:59,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280713133] [2024-11-13 14:10:59,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:10:59,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:10:59,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:10:59,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:10:59,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:10:59,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-13 14:10:59,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 71 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:10:59,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:10:59,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-13 14:10:59,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:11:00,754 INFO L124 PetriNetUnfolderBase]: 3599/6586 cut-off events. [2024-11-13 14:11:00,755 INFO L125 PetriNetUnfolderBase]: For 32471/32471 co-relation queries the response was YES. [2024-11-13 14:11:00,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24709 conditions, 6586 events. 3599/6586 cut-off events. For 32471/32471 co-relation queries the response was YES. Maximal size of possible extension queue 367. Compared 52582 event pairs, 602 based on Foata normal form. 100/6521 useless extension candidates. Maximal degree in co-relation 24666. Up to 2009 conditions per place. [2024-11-13 14:11:00,912 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 55 selfloop transitions, 29 changer transitions 37/136 dead transitions. [2024-11-13 14:11:00,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 136 transitions, 1299 flow [2024-11-13 14:11:00,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:11:00,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:11:00,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 283 transitions. [2024-11-13 14:11:00,914 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6288888888888889 [2024-11-13 14:11:00,914 INFO L175 Difference]: Start difference. First operand has 89 places, 71 transitions, 656 flow. Second operand 10 states and 283 transitions. [2024-11-13 14:11:00,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 136 transitions, 1299 flow [2024-11-13 14:11:01,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 136 transitions, 1237 flow, removed 25 selfloop flow, removed 10 redundant places. [2024-11-13 14:11:01,037 INFO L231 Difference]: Finished difference. Result has 93 places, 73 transitions, 802 flow [2024-11-13 14:11:01,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=802, PETRI_PLACES=93, PETRI_TRANSITIONS=73} [2024-11-13 14:11:01,038 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 42 predicate places. [2024-11-13 14:11:01,038 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 73 transitions, 802 flow [2024-11-13 14:11:01,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:01,038 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:11:01,038 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:01,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:11:01,039 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:11:01,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:01,039 INFO L85 PathProgramCache]: Analyzing trace with hash 198144813, now seen corresponding path program 1 times [2024-11-13 14:11:01,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:01,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16678421] [2024-11-13 14:11:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:01,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:01,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:01,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:01,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16678421] [2024-11-13 14:11:01,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16678421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:01,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:01,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:11:01,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999437835] [2024-11-13 14:11:01,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:01,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:11:01,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:01,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:11:01,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:11:01,366 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-13 14:11:01,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 73 transitions, 802 flow. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 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) [2024-11-13 14:11:01,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:11:01,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-13 14:11:01,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:11:02,707 INFO L124 PetriNetUnfolderBase]: 4795/8713 cut-off events. [2024-11-13 14:11:02,707 INFO L125 PetriNetUnfolderBase]: For 57995/58036 co-relation queries the response was YES. [2024-11-13 14:11:02,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34429 conditions, 8713 events. 4795/8713 cut-off events. For 57995/58036 co-relation queries the response was YES. Maximal size of possible extension queue 557. Compared 72612 event pairs, 1100 based on Foata normal form. 132/8624 useless extension candidates. Maximal degree in co-relation 34385. Up to 2572 conditions per place. [2024-11-13 14:11:02,776 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 54 selfloop transitions, 20 changer transitions 51/140 dead transitions. [2024-11-13 14:11:02,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 140 transitions, 1732 flow [2024-11-13 14:11:02,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:11:02,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 14:11:02,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 213 transitions. [2024-11-13 14:11:02,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-13 14:11:02,779 INFO L175 Difference]: Start difference. First operand has 93 places, 73 transitions, 802 flow. Second operand 7 states and 213 transitions. [2024-11-13 14:11:02,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 140 transitions, 1732 flow [2024-11-13 14:11:03,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 140 transitions, 1672 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-11-13 14:11:03,048 INFO L231 Difference]: Finished difference. Result has 92 places, 62 transitions, 679 flow [2024-11-13 14:11:03,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=778, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=679, PETRI_PLACES=92, PETRI_TRANSITIONS=62} [2024-11-13 14:11:03,049 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 41 predicate places. [2024-11-13 14:11:03,049 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 62 transitions, 679 flow [2024-11-13 14:11:03,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 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) [2024-11-13 14:11:03,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:11:03,050 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:03,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:11:03,050 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:11:03,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:03,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1954474989, now seen corresponding path program 2 times [2024-11-13 14:11:03,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:03,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175123624] [2024-11-13 14:11:03,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:03,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:03,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:03,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175123624] [2024-11-13 14:11:03,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175123624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:03,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:03,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:11:03,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897916960] [2024-11-13 14:11:03,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:03,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:11:03,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:03,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:11:03,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:11:03,379 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 45 [2024-11-13 14:11:03,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 62 transitions, 679 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:03,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:11:03,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 45 [2024-11-13 14:11:03,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:11:04,496 INFO L124 PetriNetUnfolderBase]: 2881/5344 cut-off events. [2024-11-13 14:11:04,496 INFO L125 PetriNetUnfolderBase]: For 31916/31916 co-relation queries the response was YES. [2024-11-13 14:11:04,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19893 conditions, 5344 events. 2881/5344 cut-off events. For 31916/31916 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 42646 event pairs, 687 based on Foata normal form. 116/5337 useless extension candidates. Maximal degree in co-relation 19848. Up to 1609 conditions per place. [2024-11-13 14:11:04,529 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 46 selfloop transitions, 21 changer transitions 39/121 dead transitions. [2024-11-13 14:11:04,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 121 transitions, 1262 flow [2024-11-13 14:11:04,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:11:04,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 14:11:04,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 281 transitions. [2024-11-13 14:11:04,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6244444444444445 [2024-11-13 14:11:04,533 INFO L175 Difference]: Start difference. First operand has 92 places, 62 transitions, 679 flow. Second operand 10 states and 281 transitions. [2024-11-13 14:11:04,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 121 transitions, 1262 flow [2024-11-13 14:11:04,600 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 121 transitions, 1124 flow, removed 23 selfloop flow, removed 10 redundant places. [2024-11-13 14:11:04,602 INFO L231 Difference]: Finished difference. Result has 96 places, 60 transitions, 621 flow [2024-11-13 14:11:04,603 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=621, PETRI_PLACES=96, PETRI_TRANSITIONS=60} [2024-11-13 14:11:04,609 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 45 predicate places. [2024-11-13 14:11:04,609 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 60 transitions, 621 flow [2024-11-13 14:11:04,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:04,610 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:11:04,610 INFO L204 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] [2024-11-13 14:11:04,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:11:04,610 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:11:04,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:04,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1274937684, now seen corresponding path program 1 times [2024-11-13 14:11:04,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:04,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024772322] [2024-11-13 14:11:04,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:04,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:04,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:04,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024772322] [2024-11-13 14:11:04,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024772322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:04,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:04,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:11:04,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106929877] [2024-11-13 14:11:04,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:04,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:11:04,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:04,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:11:04,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:11:04,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-13 14:11:04,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 60 transitions, 621 flow. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:04,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:11:04,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-13 14:11:04,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:11:06,218 INFO L124 PetriNetUnfolderBase]: 6831/11392 cut-off events. [2024-11-13 14:11:06,219 INFO L125 PetriNetUnfolderBase]: For 21491/21818 co-relation queries the response was YES. [2024-11-13 14:11:06,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27944 conditions, 11392 events. 6831/11392 cut-off events. For 21491/21818 co-relation queries the response was YES. Maximal size of possible extension queue 838. Compared 90914 event pairs, 2060 based on Foata normal form. 504/11440 useless extension candidates. Maximal degree in co-relation 27899. Up to 5207 conditions per place. [2024-11-13 14:11:06,298 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 32 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2024-11-13 14:11:06,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 78 transitions, 737 flow [2024-11-13 14:11:06,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:11:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 14:11:06,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-11-13 14:11:06,299 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2024-11-13 14:11:06,299 INFO L175 Difference]: Start difference. First operand has 96 places, 60 transitions, 621 flow. Second operand 4 states and 132 transitions. [2024-11-13 14:11:06,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 78 transitions, 737 flow [2024-11-13 14:11:06,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 78 transitions, 711 flow, removed 13 selfloop flow, removed 7 redundant places. [2024-11-13 14:11:06,398 INFO L231 Difference]: Finished difference. Result has 88 places, 65 transitions, 641 flow [2024-11-13 14:11:06,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=641, PETRI_PLACES=88, PETRI_TRANSITIONS=65} [2024-11-13 14:11:06,399 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 37 predicate places. [2024-11-13 14:11:06,399 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 65 transitions, 641 flow [2024-11-13 14:11:06,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:06,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:11:06,399 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:06,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:11:06,399 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:11:06,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:06,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1856788295, now seen corresponding path program 1 times [2024-11-13 14:11:06,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:06,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367918032] [2024-11-13 14:11:06,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:06,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:06,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:06,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:06,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367918032] [2024-11-13 14:11:06,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367918032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:06,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:06,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:11:06,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545317705] [2024-11-13 14:11:06,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:06,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:11:06,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:06,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:11:06,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:11:06,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-13 14:11:06,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 65 transitions, 641 flow. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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) [2024-11-13 14:11:06,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:11:06,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-13 14:11:06,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:11:08,285 INFO L124 PetriNetUnfolderBase]: 6803/11284 cut-off events. [2024-11-13 14:11:08,285 INFO L125 PetriNetUnfolderBase]: For 11115/14142 co-relation queries the response was YES. [2024-11-13 14:11:08,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29856 conditions, 11284 events. 6803/11284 cut-off events. For 11115/14142 co-relation queries the response was YES. Maximal size of possible extension queue 914. Compared 87483 event pairs, 1080 based on Foata normal form. 546/11416 useless extension candidates. Maximal degree in co-relation 29814. Up to 5516 conditions per place. [2024-11-13 14:11:08,345 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 40 selfloop transitions, 10 changer transitions 0/90 dead transitions. [2024-11-13 14:11:08,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 90 transitions, 816 flow [2024-11-13 14:11:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 14:11:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 14:11:08,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-11-13 14:11:08,347 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7422222222222222 [2024-11-13 14:11:08,347 INFO L175 Difference]: Start difference. First operand has 88 places, 65 transitions, 641 flow. Second operand 5 states and 167 transitions. [2024-11-13 14:11:08,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 90 transitions, 816 flow [2024-11-13 14:11:08,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 90 transitions, 764 flow, removed 14 selfloop flow, removed 5 redundant places. [2024-11-13 14:11:08,374 INFO L231 Difference]: Finished difference. Result has 89 places, 70 transitions, 657 flow [2024-11-13 14:11:08,375 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=657, PETRI_PLACES=89, PETRI_TRANSITIONS=70} [2024-11-13 14:11:08,375 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 38 predicate places. [2024-11-13 14:11:08,376 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 70 transitions, 657 flow [2024-11-13 14:11:08,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 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) [2024-11-13 14:11:08,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:11:08,376 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:08,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:11:08,377 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:11:08,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:08,377 INFO L85 PathProgramCache]: Analyzing trace with hash -439237678, now seen corresponding path program 1 times [2024-11-13 14:11:08,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:08,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330953979] [2024-11-13 14:11:08,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:08,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:08,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:08,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:08,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330953979] [2024-11-13 14:11:08,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330953979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:08,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:08,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:11:08,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502337820] [2024-11-13 14:11:08,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:08,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:11:08,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:08,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:11:08,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:11:08,560 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-13 14:11:08,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 70 transitions, 657 flow. Second operand has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:08,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:11:08,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-13 14:11:08,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:11:09,634 INFO L124 PetriNetUnfolderBase]: 6084/9836 cut-off events. [2024-11-13 14:11:09,635 INFO L125 PetriNetUnfolderBase]: For 14754/20340 co-relation queries the response was YES. [2024-11-13 14:11:09,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30332 conditions, 9836 events. 6084/9836 cut-off events. For 14754/20340 co-relation queries the response was YES. Maximal size of possible extension queue 760. Compared 72303 event pairs, 339 based on Foata normal form. 526/10028 useless extension candidates. Maximal degree in co-relation 30291. Up to 4816 conditions per place. [2024-11-13 14:11:09,891 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 48 selfloop transitions, 14 changer transitions 0/102 dead transitions. [2024-11-13 14:11:09,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 102 transitions, 890 flow [2024-11-13 14:11:09,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:11:09,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:11:09,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 202 transitions. [2024-11-13 14:11:09,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7481481481481481 [2024-11-13 14:11:09,893 INFO L175 Difference]: Start difference. First operand has 89 places, 70 transitions, 657 flow. Second operand 6 states and 202 transitions. [2024-11-13 14:11:09,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 102 transitions, 890 flow [2024-11-13 14:11:09,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 102 transitions, 870 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-13 14:11:09,906 INFO L231 Difference]: Finished difference. Result has 94 places, 75 transitions, 723 flow [2024-11-13 14:11:09,906 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=723, PETRI_PLACES=94, PETRI_TRANSITIONS=75} [2024-11-13 14:11:09,907 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 43 predicate places. [2024-11-13 14:11:09,907 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 75 transitions, 723 flow [2024-11-13 14:11:09,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.333333333333332) internal successors, (152), 6 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:11:09,907 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:11:09,907 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:09,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 14:11:09,907 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:11:09,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:09,908 INFO L85 PathProgramCache]: Analyzing trace with hash 996294986, now seen corresponding path program 1 times [2024-11-13 14:11:09,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:09,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542885363] [2024-11-13 14:11:09,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:09,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:10,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:10,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542885363] [2024-11-13 14:11:10,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542885363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:10,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:10,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 14:11:10,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639112524] [2024-11-13 14:11:10,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:10,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 14:11:10,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:10,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 14:11:10,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 14:11:10,100 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 45 [2024-11-13 14:11:10,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 75 transitions, 723 flow. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 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) [2024-11-13 14:11:10,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:11:10,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 45 [2024-11-13 14:11:10,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:11:11,444 INFO L124 PetriNetUnfolderBase]: 5484/8580 cut-off events. [2024-11-13 14:11:11,444 INFO L125 PetriNetUnfolderBase]: For 24008/29619 co-relation queries the response was YES. [2024-11-13 14:11:11,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30791 conditions, 8580 events. 5484/8580 cut-off events. For 24008/29619 co-relation queries the response was YES. Maximal size of possible extension queue 745. Compared 59508 event pairs, 203 based on Foata normal form. 381/8643 useless extension candidates. Maximal degree in co-relation 30748. Up to 3616 conditions per place. [2024-11-13 14:11:11,503 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 44 selfloop transitions, 18 changer transitions 16/104 dead transitions. [2024-11-13 14:11:11,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 104 transitions, 924 flow [2024-11-13 14:11:11,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:11:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 14:11:11,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2024-11-13 14:11:11,505 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7206349206349206 [2024-11-13 14:11:11,505 INFO L175 Difference]: Start difference. First operand has 94 places, 75 transitions, 723 flow. Second operand 7 states and 227 transitions. [2024-11-13 14:11:11,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 104 transitions, 924 flow [2024-11-13 14:11:11,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 104 transitions, 868 flow, removed 16 selfloop flow, removed 7 redundant places. [2024-11-13 14:11:11,548 INFO L231 Difference]: Finished difference. Result has 95 places, 62 transitions, 517 flow [2024-11-13 14:11:11,548 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=517, PETRI_PLACES=95, PETRI_TRANSITIONS=62} [2024-11-13 14:11:11,549 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 44 predicate places. [2024-11-13 14:11:11,549 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 62 transitions, 517 flow [2024-11-13 14:11:11,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 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) [2024-11-13 14:11:11,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:11:11,550 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:11,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 14:11:11,550 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-13 14:11:11,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:11:11,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1348082285, now seen corresponding path program 1 times [2024-11-13 14:11:11,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:11:11,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868903289] [2024-11-13 14:11:11,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:11:11,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:11:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:11:11,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:11:11,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:11:11,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868903289] [2024-11-13 14:11:11,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868903289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:11:11,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:11:11,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:11:11,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766222272] [2024-11-13 14:11:11,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:11:11,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:11:11,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:11:11,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:11:11,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:11:11,822 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 45 [2024-11-13 14:11:11,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 62 transitions, 517 flow. Second operand has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2024-11-13 14:11:11,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:11:11,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 45 [2024-11-13 14:11:11,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:11:12,287 INFO L124 PetriNetUnfolderBase]: 1130/2168 cut-off events. [2024-11-13 14:11:12,287 INFO L125 PetriNetUnfolderBase]: For 8339/8590 co-relation queries the response was YES. [2024-11-13 14:11:12,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7717 conditions, 2168 events. 1130/2168 cut-off events. For 8339/8590 co-relation queries the response was YES. Maximal size of possible extension queue 192. Compared 14990 event pairs, 411 based on Foata normal form. 27/1837 useless extension candidates. Maximal degree in co-relation 7676. Up to 1323 conditions per place. [2024-11-13 14:11:12,304 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2024-11-13 14:11:12,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 73 transitions, 615 flow [2024-11-13 14:11:12,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:11:12,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:11:12,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 166 transitions. [2024-11-13 14:11:12,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6148148148148148 [2024-11-13 14:11:12,306 INFO L175 Difference]: Start difference. First operand has 95 places, 62 transitions, 517 flow. Second operand 6 states and 166 transitions. [2024-11-13 14:11:12,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 73 transitions, 615 flow [2024-11-13 14:11:12,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 73 transitions, 456 flow, removed 19 selfloop flow, removed 19 redundant places. [2024-11-13 14:11:12,460 INFO L231 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2024-11-13 14:11:12,461 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2024-11-13 14:11:12,461 INFO L277 CegarLoopForPetriNet]: 51 programPoint places, 28 predicate places. [2024-11-13 14:11:12,461 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2024-11-13 14:11:12,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.666666666666668) internal successors, (148), 6 states have internal predecessors, (148), 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) [2024-11-13 14:11:12,465 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-13 14:11:12,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2024-11-13 14:11:12,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-13 14:11:12,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-13 14:11:12,466 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-13 14:11:12,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 14:11:12,467 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:11:12,471 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 14:11:12,472 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:11:12,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:11:12 BasicIcfg [2024-11-13 14:11:12,480 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:11:12,480 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:11:12,481 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:11:12,482 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:11:12,484 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:10:47" (3/4) ... [2024-11-13 14:11:12,488 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 14:11:12,492 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-13 14:11:12,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-13 14:11:12,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-13 14:11:12,493 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P3 [2024-11-13 14:11:12,500 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2024-11-13 14:11:12,502 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-13 14:11:12,502 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 14:11:12,502 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 14:11:12,607 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:11:12,608 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 14:11:12,608 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:11:12,609 INFO L158 Benchmark]: Toolchain (without parser) took 26167.59ms. Allocated memory was 117.4MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 92.0MB in the beginning and 3.5GB in the end (delta: -3.4GB). Peak memory consumption was 589.8MB. Max. memory is 16.1GB. [2024-11-13 14:11:12,610 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:11:12,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.11ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 71.3MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:11:12,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.06ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:11:12,612 INFO L158 Benchmark]: Boogie Preprocessor took 81.18ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 67.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:11:12,612 INFO L158 Benchmark]: RCFGBuilder took 691.71ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 49.8MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:11:12,612 INFO L158 Benchmark]: TraceAbstraction took 24628.47ms. Allocated memory was 117.4MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 49.2MB in the beginning and 3.5GB in the end (delta: -3.5GB). Peak memory consumption was 849.8MB. Max. memory is 16.1GB. [2024-11-13 14:11:12,614 INFO L158 Benchmark]: Witness Printer took 127.67ms. Allocated memory is still 4.1GB. Free memory was 3.5GB in the beginning and 3.5GB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:11:12,617 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.11ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 71.3MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.06ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 81.18ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 67.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 691.71ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 49.8MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 24628.47ms. Allocated memory was 117.4MB in the beginning and 4.1GB in the end (delta: 4.0GB). Free memory was 49.2MB in the beginning and 3.5GB in the end (delta: -3.5GB). Peak memory consumption was 849.8MB. Max. memory is 16.1GB. * Witness Printer took 127.67ms. Allocated memory is still 4.1GB. Free memory was 3.5GB in the beginning and 3.5GB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 75 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 24.4s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 20.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 771 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 695 mSDsluCounter, 465 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 324 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1501 IncrementalHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 141 mSDtfsCounter, 1501 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=802occurred in iteration=6, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 305 NumberOfCodeBlocks, 305 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 1136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 14:11:12,648 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b178356-1ad5-4d70-9774-cc2bf1d785e7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE