./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:22:14,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:22:14,524 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:22:14,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:22:14,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:22:14,558 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:22:14,559 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:22:14,559 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:22:14,560 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:22:14,561 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:22:14,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:22:14,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:22:14,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:22:14,562 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:22:14,563 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:22:14,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:22:14,567 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:22:14,567 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:22:14,567 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:22:14,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:22:14,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:22:14,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:22:14,568 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:22:14,569 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:22:14,569 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:22:14,569 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:22:14,569 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:22:14,570 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:22:14,570 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:22:14,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:22:14,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:22:14,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:22:14,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:22:14,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:22:14,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:22:14,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:22:14,572 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:22:14,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:22:14,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:22:14,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:22:14,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:22:14,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:22:14,574 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2024-11-10 10:22:14,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:22:14,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:22:14,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:22:14,837 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:22:14,838 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:22:14,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2024-11-10 10:22:16,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:22:16,522 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:22:16,523 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2024-11-10 10:22:16,550 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a228bc43e/019bdb0af1e74454a8277b8847b898e0/FLAG6d1a7da9e [2024-11-10 10:22:16,563 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a228bc43e/019bdb0af1e74454a8277b8847b898e0 [2024-11-10 10:22:16,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:22:16,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:22:16,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:22:16,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:22:16,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:22:16,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:22:16" (1/1) ... [2024-11-10 10:22:16,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755f2633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:16, skipping insertion in model container [2024-11-10 10:22:16,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:22:16" (1/1) ... [2024-11-10 10:22:16,631 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:22:16,862 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2024-11-10 10:22:17,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:22:17,067 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:22:17,077 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i[1087,1100] [2024-11-10 10:22:17,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:22:17,186 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:22:17,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17 WrapperNode [2024-11-10 10:22:17,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:22:17,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:22:17,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:22:17,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:22:17,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,255 INFO L138 Inliner]: procedures = 271, calls = 37, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2024-11-10 10:22:17,258 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:22:17,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:22:17,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:22:17,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:22:17,268 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,275 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,303 INFO L175 MemorySlicer]: Split 12 memory accesses to 3 slices as follows [2, 5, 5]. 42 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5]. The 0 writes are split as follows [0, 0, 0]. [2024-11-10 10:22:17,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,323 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,327 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,332 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:22:17,337 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:22:17,338 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:22:17,338 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:22:17,339 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (1/1) ... [2024-11-10 10:22:17,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:22:17,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:22:17,388 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 10:22:17,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 10:22:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2024-11-10 10:22:17,439 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2024-11-10 10:22:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 10:22:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 10:22:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:22:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2024-11-10 10:22:17,441 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2024-11-10 10:22:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure process [2024-11-10 10:22:17,442 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2024-11-10 10:22:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:22:17,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:22:17,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:22:17,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:22:17,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:22:17,444 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:22:17,715 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:22:17,718 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:22:17,944 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:22:17,944 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:22:18,110 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:22:18,111 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:22:18,112 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:18 BoogieIcfgContainer [2024-11-10 10:22:18,112 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:22:18,115 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:22:18,116 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:22:18,120 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:22:18,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:22:16" (1/3) ... [2024-11-10 10:22:18,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573e1133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:22:18, skipping insertion in model container [2024-11-10 10:22:18,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:22:17" (2/3) ... [2024-11-10 10:22:18,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573e1133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:22:18, skipping insertion in model container [2024-11-10 10:22:18,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:18" (3/3) ... [2024-11-10 10:22:18,124 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2024-11-10 10:22:18,142 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:22:18,143 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 10:22:18,143 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:22:18,201 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 10:22:18,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 75 transitions, 162 flow [2024-11-10 10:22:18,277 INFO L124 PetriNetUnfolderBase]: 12/72 cut-off events. [2024-11-10 10:22:18,277 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:22:18,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 72 events. 12/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 188 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2024-11-10 10:22:18,283 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 75 transitions, 162 flow [2024-11-10 10:22:18,286 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 72 transitions, 153 flow [2024-11-10 10:22:18,296 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:22:18,305 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;@6219db7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:22:18,306 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-10 10:22:18,330 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:22:18,331 INFO L124 PetriNetUnfolderBase]: 9/62 cut-off events. [2024-11-10 10:22:18,331 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:22:18,331 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:18,332 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:22:18,332 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 3 more)] === [2024-11-10 10:22:18,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:18,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1593400397, now seen corresponding path program 1 times [2024-11-10 10:22:18,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:18,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668633406] [2024-11-10 10:22:18,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:18,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:18,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:18,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:19,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668633406] [2024-11-10 10:22:19,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668633406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:19,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:19,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:22:19,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752977638] [2024-11-10 10:22:19,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:19,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:22:19,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:19,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:22:19,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:22:19,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 75 [2024-11-10 10:22:19,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 72 transitions, 153 flow. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:19,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:19,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 75 [2024-11-10 10:22:19,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:21,742 INFO L124 PetriNetUnfolderBase]: 17879/26588 cut-off events. [2024-11-10 10:22:21,743 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-11-10 10:22:21,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50303 conditions, 26588 events. 17879/26588 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 1146. Compared 193490 event pairs, 2949 based on Foata normal form. 6490/32237 useless extension candidates. Maximal degree in co-relation 50292. Up to 16831 conditions per place. [2024-11-10 10:22:21,974 INFO L140 encePairwiseOnDemand]: 60/75 looper letters, 97 selfloop transitions, 9 changer transitions 0/129 dead transitions. [2024-11-10 10:22:21,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 129 transitions, 485 flow [2024-11-10 10:22:21,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:22:21,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:22:21,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 265 transitions. [2024-11-10 10:22:21,989 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7066666666666667 [2024-11-10 10:22:21,991 INFO L175 Difference]: Start difference. First operand has 70 places, 72 transitions, 153 flow. Second operand 5 states and 265 transitions. [2024-11-10 10:22:21,992 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 129 transitions, 485 flow [2024-11-10 10:22:21,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 129 transitions, 480 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 10:22:22,001 INFO L231 Difference]: Finished difference. Result has 71 places, 69 transitions, 196 flow [2024-11-10 10:22:22,003 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=196, PETRI_PLACES=71, PETRI_TRANSITIONS=69} [2024-11-10 10:22:22,006 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 1 predicate places. [2024-11-10 10:22:22,006 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 69 transitions, 196 flow [2024-11-10 10:22:22,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:22,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:22,007 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:22:22,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:22:22,008 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:22:22,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:22,009 INFO L85 PathProgramCache]: Analyzing trace with hash -824667252, now seen corresponding path program 1 times [2024-11-10 10:22:22,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:22,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696116626] [2024-11-10 10:22:22,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:22,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:22,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:22,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696116626] [2024-11-10 10:22:22,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696116626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:22,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:22,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:22:22,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310362027] [2024-11-10 10:22:22,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:22,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:22:22,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:22,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:22:22,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:22:22,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 75 [2024-11-10 10:22:22,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 69 transitions, 196 flow. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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) [2024-11-10 10:22:22,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:22,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 75 [2024-11-10 10:22:22,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:26,652 INFO L124 PetriNetUnfolderBase]: 38420/57798 cut-off events. [2024-11-10 10:22:26,652 INFO L125 PetriNetUnfolderBase]: For 22768/23776 co-relation queries the response was YES. [2024-11-10 10:22:26,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124095 conditions, 57798 events. 38420/57798 cut-off events. For 22768/23776 co-relation queries the response was YES. Maximal size of possible extension queue 1849. Compared 444870 event pairs, 5610 based on Foata normal form. 0/55404 useless extension candidates. Maximal degree in co-relation 124081. Up to 19681 conditions per place. [2024-11-10 10:22:27,033 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 200 selfloop transitions, 12 changer transitions 0/235 dead transitions. [2024-11-10 10:22:27,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 235 transitions, 1110 flow [2024-11-10 10:22:27,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:22:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 10:22:27,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 398 transitions. [2024-11-10 10:22:27,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6633333333333333 [2024-11-10 10:22:27,037 INFO L175 Difference]: Start difference. First operand has 71 places, 69 transitions, 196 flow. Second operand 8 states and 398 transitions. [2024-11-10 10:22:27,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 235 transitions, 1110 flow [2024-11-10 10:22:27,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 235 transitions, 1110 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 10:22:27,081 INFO L231 Difference]: Finished difference. Result has 84 places, 79 transitions, 284 flow [2024-11-10 10:22:27,082 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=284, PETRI_PLACES=84, PETRI_TRANSITIONS=79} [2024-11-10 10:22:27,083 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 14 predicate places. [2024-11-10 10:22:27,083 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 79 transitions, 284 flow [2024-11-10 10:22:27,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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) [2024-11-10 10:22:27,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:27,084 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] [2024-11-10 10:22:27,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:22:27,085 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 3 more)] === [2024-11-10 10:22:27,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:27,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1431660755, now seen corresponding path program 1 times [2024-11-10 10:22:27,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:27,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693000923] [2024-11-10 10:22:27,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:27,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:27,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:27,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:27,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:27,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693000923] [2024-11-10 10:22:27,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693000923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:27,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:27,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:22:27,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802754403] [2024-11-10 10:22:27,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:27,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:22:27,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:27,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:22:27,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:22:27,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 75 [2024-11-10 10:22:27,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 79 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-10 10:22:27,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:27,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 75 [2024-11-10 10:22:27,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:34,489 INFO L124 PetriNetUnfolderBase]: 54236/87803 cut-off events. [2024-11-10 10:22:34,490 INFO L125 PetriNetUnfolderBase]: For 63461/65714 co-relation queries the response was YES. [2024-11-10 10:22:34,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 213256 conditions, 87803 events. 54236/87803 cut-off events. For 63461/65714 co-relation queries the response was YES. Maximal size of possible extension queue 2457. Compared 751690 event pairs, 12326 based on Foata normal form. 3290/89709 useless extension candidates. Maximal degree in co-relation 213234. Up to 43243 conditions per place. [2024-11-10 10:22:35,221 INFO L140 encePairwiseOnDemand]: 64/75 looper letters, 90 selfloop transitions, 11 changer transitions 0/127 dead transitions. [2024-11-10 10:22:35,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 127 transitions, 683 flow [2024-11-10 10:22:35,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:22:35,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 10:22:35,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2024-11-10 10:22:35,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6888888888888889 [2024-11-10 10:22:35,223 INFO L175 Difference]: Start difference. First operand has 84 places, 79 transitions, 284 flow. Second operand 3 states and 155 transitions. [2024-11-10 10:22:35,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 127 transitions, 683 flow [2024-11-10 10:22:35,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 127 transitions, 683 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 10:22:35,737 INFO L231 Difference]: Finished difference. Result has 87 places, 87 transitions, 349 flow [2024-11-10 10:22:35,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=349, PETRI_PLACES=87, PETRI_TRANSITIONS=87} [2024-11-10 10:22:35,738 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 17 predicate places. [2024-11-10 10:22:35,739 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 87 transitions, 349 flow [2024-11-10 10:22:35,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-10 10:22:35,739 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:35,739 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] [2024-11-10 10:22:35,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:22:35,740 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 3 more)] === [2024-11-10 10:22:35,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:35,741 INFO L85 PathProgramCache]: Analyzing trace with hash -496801193, now seen corresponding path program 1 times [2024-11-10 10:22:35,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:35,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800062500] [2024-11-10 10:22:35,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:35,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:36,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:36,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:36,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800062500] [2024-11-10 10:22:36,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800062500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:36,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:36,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:22:36,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40881272] [2024-11-10 10:22:36,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:36,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:22:36,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:36,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:22:36,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:22:36,144 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 75 [2024-11-10 10:22:36,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 87 transitions, 349 flow. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-11-10 10:22:36,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:36,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 75 [2024-11-10 10:22:36,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:45,171 INFO L124 PetriNetUnfolderBase]: 70597/107071 cut-off events. [2024-11-10 10:22:45,172 INFO L125 PetriNetUnfolderBase]: For 110423/111269 co-relation queries the response was YES. [2024-11-10 10:22:45,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 309833 conditions, 107071 events. 70597/107071 cut-off events. For 110423/111269 co-relation queries the response was YES. Maximal size of possible extension queue 2939. Compared 867827 event pairs, 18215 based on Foata normal form. 1458/106739 useless extension candidates. Maximal degree in co-relation 309809. Up to 51584 conditions per place. [2024-11-10 10:22:46,033 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 181 selfloop transitions, 28 changer transitions 0/232 dead transitions. [2024-11-10 10:22:46,033 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 232 transitions, 1390 flow [2024-11-10 10:22:46,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:22:46,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:22:46,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 332 transitions. [2024-11-10 10:22:46,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6323809523809524 [2024-11-10 10:22:46,035 INFO L175 Difference]: Start difference. First operand has 87 places, 87 transitions, 349 flow. Second operand 7 states and 332 transitions. [2024-11-10 10:22:46,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 232 transitions, 1390 flow [2024-11-10 10:22:46,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 232 transitions, 1349 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 10:22:46,757 INFO L231 Difference]: Finished difference. Result has 98 places, 106 transitions, 584 flow [2024-11-10 10:22:46,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=584, PETRI_PLACES=98, PETRI_TRANSITIONS=106} [2024-11-10 10:22:46,758 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 28 predicate places. [2024-11-10 10:22:46,758 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 106 transitions, 584 flow [2024-11-10 10:22:46,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-11-10 10:22:46,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:46,759 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] [2024-11-10 10:22:46,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:22:46,760 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 3 more)] === [2024-11-10 10:22:46,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:46,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1186741097, now seen corresponding path program 1 times [2024-11-10 10:22:46,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:46,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347270133] [2024-11-10 10:22:46,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:46,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:46,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:46,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:46,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347270133] [2024-11-10 10:22:46,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347270133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:46,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:46,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:22:46,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057561550] [2024-11-10 10:22:46,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:46,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:22:46,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:46,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:22:46,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:22:46,955 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 75 [2024-11-10 10:22:46,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 106 transitions, 584 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-10 10:22:46,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:46,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 75 [2024-11-10 10:22:46,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:49,257 INFO L124 PetriNetUnfolderBase]: 13939/24542 cut-off events. [2024-11-10 10:22:49,257 INFO L125 PetriNetUnfolderBase]: For 29298/29936 co-relation queries the response was YES. [2024-11-10 10:22:49,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66340 conditions, 24542 events. 13939/24542 cut-off events. For 29298/29936 co-relation queries the response was YES. Maximal size of possible extension queue 841. Compared 201875 event pairs, 2764 based on Foata normal form. 1864/25986 useless extension candidates. Maximal degree in co-relation 66309. Up to 16485 conditions per place. [2024-11-10 10:22:49,504 INFO L140 encePairwiseOnDemand]: 67/75 looper letters, 74 selfloop transitions, 10 changer transitions 0/111 dead transitions. [2024-11-10 10:22:49,505 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 111 transitions, 671 flow [2024-11-10 10:22:49,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:22:49,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:22:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions. [2024-11-10 10:22:49,506 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5566666666666666 [2024-11-10 10:22:49,506 INFO L175 Difference]: Start difference. First operand has 98 places, 106 transitions, 584 flow. Second operand 4 states and 167 transitions. [2024-11-10 10:22:49,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 111 transitions, 671 flow [2024-11-10 10:22:49,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 111 transitions, 638 flow, removed 11 selfloop flow, removed 4 redundant places. [2024-11-10 10:22:49,916 INFO L231 Difference]: Finished difference. Result has 96 places, 87 transitions, 397 flow [2024-11-10 10:22:49,917 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=377, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=397, PETRI_PLACES=96, PETRI_TRANSITIONS=87} [2024-11-10 10:22:49,917 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 26 predicate places. [2024-11-10 10:22:49,918 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 87 transitions, 397 flow [2024-11-10 10:22:49,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-10 10:22:49,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:49,919 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] [2024-11-10 10:22:49,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:22:49,919 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting disposeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:22:49,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:49,920 INFO L85 PathProgramCache]: Analyzing trace with hash -982511789, now seen corresponding path program 1 times [2024-11-10 10:22:49,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:49,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888246842] [2024-11-10 10:22:49,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:49,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:50,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:50,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:50,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888246842] [2024-11-10 10:22:50,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888246842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:50,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:50,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:22:50,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873878323] [2024-11-10 10:22:50,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:50,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:22:50,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:50,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:22:50,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:22:50,175 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 75 [2024-11-10 10:22:50,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 87 transitions, 397 flow. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-11-10 10:22:50,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:50,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 75 [2024-11-10 10:22:50,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:52,121 INFO L124 PetriNetUnfolderBase]: 11423/19278 cut-off events. [2024-11-10 10:22:52,121 INFO L125 PetriNetUnfolderBase]: For 19062/19225 co-relation queries the response was YES. [2024-11-10 10:22:52,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50681 conditions, 19278 events. 11423/19278 cut-off events. For 19062/19225 co-relation queries the response was YES. Maximal size of possible extension queue 641. Compared 147195 event pairs, 1316 based on Foata normal form. 1645/20657 useless extension candidates. Maximal degree in co-relation 50652. Up to 4789 conditions per place. [2024-11-10 10:22:52,233 INFO L140 encePairwiseOnDemand]: 66/75 looper letters, 124 selfloop transitions, 29 changer transitions 6/181 dead transitions. [2024-11-10 10:22:52,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 181 transitions, 1141 flow [2024-11-10 10:22:52,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:22:52,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 10:22:52,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 314 transitions. [2024-11-10 10:22:52,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5233333333333333 [2024-11-10 10:22:52,235 INFO L175 Difference]: Start difference. First operand has 96 places, 87 transitions, 397 flow. Second operand 8 states and 314 transitions. [2024-11-10 10:22:52,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 181 transitions, 1141 flow [2024-11-10 10:22:52,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 181 transitions, 1103 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-10 10:22:52,291 INFO L231 Difference]: Finished difference. Result has 97 places, 95 transitions, 516 flow [2024-11-10 10:22:52,292 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=516, PETRI_PLACES=97, PETRI_TRANSITIONS=95} [2024-11-10 10:22:52,292 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 27 predicate places. [2024-11-10 10:22:52,293 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 95 transitions, 516 flow [2024-11-10 10:22:52,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 7 states have internal predecessors, (184), 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) [2024-11-10 10:22:52,293 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:52,293 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] [2024-11-10 10:22:52,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 10:22:52,293 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 3 more)] === [2024-11-10 10:22:52,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:52,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1214803796, now seen corresponding path program 1 times [2024-11-10 10:22:52,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:52,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165934565] [2024-11-10 10:22:52,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:52,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:52,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:52,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:52,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165934565] [2024-11-10 10:22:52,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165934565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:52,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:52,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:22:52,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387640847] [2024-11-10 10:22:52,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:52,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:22:52,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:52,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:22:52,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:22:52,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 75 [2024-11-10 10:22:52,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 95 transitions, 516 flow. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 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) [2024-11-10 10:22:52,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:52,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 75 [2024-11-10 10:22:52,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:53,900 INFO L124 PetriNetUnfolderBase]: 10708/18971 cut-off events. [2024-11-10 10:22:53,901 INFO L125 PetriNetUnfolderBase]: For 25269/25420 co-relation queries the response was YES. [2024-11-10 10:22:53,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53126 conditions, 18971 events. 10708/18971 cut-off events. For 25269/25420 co-relation queries the response was YES. Maximal size of possible extension queue 572. Compared 150145 event pairs, 3240 based on Foata normal form. 111/18753 useless extension candidates. Maximal degree in co-relation 53096. Up to 5883 conditions per place. [2024-11-10 10:22:54,026 INFO L140 encePairwiseOnDemand]: 66/75 looper letters, 142 selfloop transitions, 24 changer transitions 3/190 dead transitions. [2024-11-10 10:22:54,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 190 transitions, 1374 flow [2024-11-10 10:22:54,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 10:22:54,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 10:22:54,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 249 transitions. [2024-11-10 10:22:54,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5533333333333333 [2024-11-10 10:22:54,027 INFO L175 Difference]: Start difference. First operand has 97 places, 95 transitions, 516 flow. Second operand 6 states and 249 transitions. [2024-11-10 10:22:54,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 190 transitions, 1374 flow [2024-11-10 10:22:54,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 190 transitions, 1361 flow, removed 6 selfloop flow, removed 1 redundant places. [2024-11-10 10:22:54,117 INFO L231 Difference]: Finished difference. Result has 103 places, 106 transitions, 698 flow [2024-11-10 10:22:54,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=698, PETRI_PLACES=103, PETRI_TRANSITIONS=106} [2024-11-10 10:22:54,118 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 33 predicate places. [2024-11-10 10:22:54,118 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 106 transitions, 698 flow [2024-11-10 10:22:54,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 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) [2024-11-10 10:22:54,118 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:54,119 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] [2024-11-10 10:22:54,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 10:22:54,119 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 3 more)] === [2024-11-10 10:22:54,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:54,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1079942298, now seen corresponding path program 1 times [2024-11-10 10:22:54,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:54,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003239948] [2024-11-10 10:22:54,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:54,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:54,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:54,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:54,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003239948] [2024-11-10 10:22:54,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003239948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:54,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:54,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 10:22:54,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460182384] [2024-11-10 10:22:54,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:54,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:22:54,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:54,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:22:54,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:22:54,339 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 75 [2024-11-10 10:22:54,339 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 106 transitions, 698 flow. Second operand has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:54,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:54,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 75 [2024-11-10 10:22:54,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:56,203 INFO L124 PetriNetUnfolderBase]: 10598/19210 cut-off events. [2024-11-10 10:22:56,203 INFO L125 PetriNetUnfolderBase]: For 32823/32986 co-relation queries the response was YES. [2024-11-10 10:22:56,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56593 conditions, 19210 events. 10598/19210 cut-off events. For 32823/32986 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 154784 event pairs, 3456 based on Foata normal form. 66/19020 useless extension candidates. Maximal degree in co-relation 56559. Up to 7310 conditions per place. [2024-11-10 10:22:56,266 INFO L140 encePairwiseOnDemand]: 69/75 looper letters, 0 selfloop transitions, 0 changer transitions 134/134 dead transitions. [2024-11-10 10:22:56,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 134 transitions, 1055 flow [2024-11-10 10:22:56,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:22:56,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:22:56,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 177 transitions. [2024-11-10 10:22:56,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.472 [2024-11-10 10:22:56,268 INFO L175 Difference]: Start difference. First operand has 103 places, 106 transitions, 698 flow. Second operand 5 states and 177 transitions. [2024-11-10 10:22:56,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 134 transitions, 1055 flow [2024-11-10 10:22:56,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 134 transitions, 1017 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 10:22:56,364 INFO L231 Difference]: Finished difference. Result has 100 places, 0 transitions, 0 flow [2024-11-10 10:22:56,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=100, PETRI_TRANSITIONS=0} [2024-11-10 10:22:56,366 INFO L277 CegarLoopForPetriNet]: 70 programPoint places, 30 predicate places. [2024-11-10 10:22:56,366 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 0 transitions, 0 flow [2024-11-10 10:22:56,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.142857142857142) internal successors, (190), 7 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:56,369 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-10 10:22:56,369 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 6 remaining) [2024-11-10 10:22:56,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-10 10:22:56,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-10 10:22:56,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location disposeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-10 10:22:56,370 INFO L782 garLoopResultBuilder]: Registering result SAFE for location disposeErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-10 10:22:56,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 10:22:56,370 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:22:56,499 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 10:22:56,499 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 10:22:56,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:22:56 BasicIcfg [2024-11-10 10:22:56,505 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 10:22:56,506 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 10:22:56,506 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 10:22:56,506 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 10:22:56,506 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:22:18" (3/4) ... [2024-11-10 10:22:56,508 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 10:22:56,516 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure process [2024-11-10 10:22:56,517 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure dispose [2024-11-10 10:22:56,518 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure generate [2024-11-10 10:22:56,524 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-10 10:22:56,525 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-10 10:22:56,525 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-10 10:22:56,525 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 10:22:56,525 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 10:22:56,618 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 10:22:56,619 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 10:22:56,619 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 10:22:56,620 INFO L158 Benchmark]: Toolchain (without parser) took 40052.80ms. Allocated memory was 165.7MB in the beginning and 14.5GB in the end (delta: 14.3GB). Free memory was 104.2MB in the beginning and 12.3GB in the end (delta: -12.2GB). Peak memory consumption was 2.1GB. Max. memory is 16.1GB. [2024-11-10 10:22:56,620 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 10:22:56,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.50ms. Allocated memory is still 165.7MB. Free memory was 104.2MB in the beginning and 109.8MB in the end (delta: -5.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 10:22:56,621 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.03ms. Allocated memory is still 165.7MB. Free memory was 109.8MB in the beginning and 106.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 10:22:56,621 INFO L158 Benchmark]: Boogie Preprocessor took 77.82ms. Allocated memory is still 165.7MB. Free memory was 106.9MB in the beginning and 103.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 10:22:56,621 INFO L158 Benchmark]: IcfgBuilder took 774.90ms. Allocated memory was 165.7MB in the beginning and 213.9MB in the end (delta: 48.2MB). Free memory was 103.5MB in the beginning and 178.3MB in the end (delta: -74.8MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2024-11-10 10:22:56,622 INFO L158 Benchmark]: TraceAbstraction took 38389.90ms. Allocated memory was 213.9MB in the beginning and 14.5GB in the end (delta: 14.3GB). Free memory was 177.2MB in the beginning and 12.3GB in the end (delta: -12.1GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2024-11-10 10:22:56,622 INFO L158 Benchmark]: Witness Printer took 113.56ms. Allocated memory is still 14.5GB. Free memory was 12.3GB in the beginning and 12.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 10:22:56,624 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 47.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 619.50ms. Allocated memory is still 165.7MB. Free memory was 104.2MB in the beginning and 109.8MB in the end (delta: -5.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.03ms. Allocated memory is still 165.7MB. Free memory was 109.8MB in the beginning and 106.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.82ms. Allocated memory is still 165.7MB. Free memory was 106.9MB in the beginning and 103.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 774.90ms. Allocated memory was 165.7MB in the beginning and 213.9MB in the end (delta: 48.2MB). Free memory was 103.5MB in the beginning and 178.3MB in the end (delta: -74.8MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * TraceAbstraction took 38389.90ms. Allocated memory was 213.9MB in the beginning and 14.5GB in the end (delta: 14.3GB). Free memory was 177.2MB in the beginning and 12.3GB in the end (delta: -12.1GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. * Witness Printer took 113.56ms. Allocated memory is still 14.5GB. Free memory was 12.3GB in the beginning and 12.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 7 procedures, 108 locations, 6 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: 38.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 35.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 725 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 711 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1653 IncrementalHoareTripleChecker+Invalid, 1699 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 2 mSDtfsCounter, 1653 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=698occurred in iteration=7, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 178 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 10:22:56,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE