./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/04-mutex_46-escape_nr.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:16:26,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:16:26,521 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:16:26,529 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:16:26,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:16:26,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:16:26,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:16:26,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:16:26,561 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:16:26,564 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:16:26,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:16:26,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:16:26,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:16:26,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:16:26,565 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:16:26,566 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:16:26,566 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:16:26,566 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:16:26,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:16:26,566 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:16:26,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:16:26,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:16:26,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:16:26,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:16:26,570 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:16:26,570 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:16:26,571 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:16:26,571 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:16:26,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:16:26,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:16:26,572 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:16:26,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:16:26,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:16:26,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:16:26,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:16:26,572 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:16:26,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:16:26,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:16:26,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:16:26,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:16:26,574 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:16:26,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:16:26,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:16:26,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:16:26,575 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2024-11-10 22:16:26,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:16:26,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:16:26,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:16:26,850 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:16:26,851 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:16:26,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2024-11-10 22:16:28,243 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:16:28,535 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:16:28,536 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2024-11-10 22:16:28,553 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6152e744f/56e327a5fb544a49acb3ac0748778e24/FLAGd9cb2c9e3 [2024-11-10 22:16:28,570 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6152e744f/56e327a5fb544a49acb3ac0748778e24 [2024-11-10 22:16:28,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:16:28,573 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:16:28,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:16:28,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:16:28,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:16:28,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:16:28" (1/1) ... [2024-11-10 22:16:28,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c08e32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:28, skipping insertion in model container [2024-11-10 22:16:28,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:16:28" (1/1) ... [2024-11-10 22:16:28,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:16:29,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:16:29,078 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:16:29,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:16:29,169 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:16:29,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29 WrapperNode [2024-11-10 22:16:29,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:16:29,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:16:29,171 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:16:29,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:16:29,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,226 INFO L138 Inliner]: procedures = 264, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 106 [2024-11-10 22:16:29,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:16:29,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:16:29,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:16:29,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:16:29,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,237 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,252 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [5, 6]. 55 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [5, 1]. The 2 writes are split as follows [0, 2]. [2024-11-10 22:16:29,253 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,261 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,261 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,264 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:16:29,267 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:16:29,267 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:16:29,267 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:16:29,268 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (1/1) ... [2024-11-10 22:16:29,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:16:29,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:16:29,301 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 22:16:29,303 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 22:16:29,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 22:16:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 22:16:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:16:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:16:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:16:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:16:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:16:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:16:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:16:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 22:16:29,352 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 22:16:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:16:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:16:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:16:29,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:16:29,355 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 22:16:29,508 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:16:29,511 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:16:29,691 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L930: havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2024-11-10 22:16:29,692 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L930-1: SUMMARY for call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset); srcloc: null [2024-11-10 22:16:29,729 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:16:29,729 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:16:29,928 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:16:29,931 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:16:29,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:16:29 BoogieIcfgContainer [2024-11-10 22:16:29,931 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:16:29,934 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:16:29,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:16:29,942 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:16:29,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:16:28" (1/3) ... [2024-11-10 22:16:29,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f23489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:16:29, skipping insertion in model container [2024-11-10 22:16:29,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:16:29" (2/3) ... [2024-11-10 22:16:29,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56f23489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:16:29, skipping insertion in model container [2024-11-10 22:16:29,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:16:29" (3/3) ... [2024-11-10 22:16:29,945 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2024-11-10 22:16:29,962 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:16:29,962 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 22:16:29,962 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:16:30,039 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 22:16:30,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 26 transitions, 59 flow [2024-11-10 22:16:30,131 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2024-11-10 22:16:30,132 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:16:30,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 25 events. 1/25 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 34 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 1. Up to 2 conditions per place. [2024-11-10 22:16:30,134 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 26 transitions, 59 flow [2024-11-10 22:16:30,138 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 21 transitions, 45 flow [2024-11-10 22:16:30,146 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:16:30,152 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;@613eff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:16:30,152 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-10 22:16:30,157 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:16:30,158 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-11-10 22:16:30,158 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:16:30,158 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:30,159 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:30,159 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:30,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:30,164 INFO L85 PathProgramCache]: Analyzing trace with hash -486292886, now seen corresponding path program 1 times [2024-11-10 22:16:30,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:30,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418232291] [2024-11-10 22:16:30,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:30,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:30,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:30,731 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 22:16:30,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:30,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418232291] [2024-11-10 22:16:30,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418232291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:30,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:30,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:16:30,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821973823] [2024-11-10 22:16:30,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:30,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 22:16:30,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:30,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 22:16:30,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:16:30,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-10 22:16:30,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 45 flow. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 22:16:30,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:30,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-10 22:16:30,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:31,005 INFO L124 PetriNetUnfolderBase]: 40/117 cut-off events. [2024-11-10 22:16:31,006 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:16:31,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 117 events. 40/117 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 408 event pairs, 2 based on Foata normal form. 6/114 useless extension candidates. Maximal degree in co-relation 211. Up to 35 conditions per place. [2024-11-10 22:16:31,010 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 20 selfloop transitions, 10 changer transitions 7/42 dead transitions. [2024-11-10 22:16:31,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 42 transitions, 161 flow [2024-11-10 22:16:31,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:16:31,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:16:31,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 93 transitions. [2024-11-10 22:16:31,025 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3974358974358974 [2024-11-10 22:16:31,026 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 45 flow. Second operand 9 states and 93 transitions. [2024-11-10 22:16:31,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 42 transitions, 161 flow [2024-11-10 22:16:31,029 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 42 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:16:31,032 INFO L231 Difference]: Finished difference. Result has 37 places, 26 transitions, 100 flow [2024-11-10 22:16:31,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=100, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2024-11-10 22:16:31,037 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 12 predicate places. [2024-11-10 22:16:31,040 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 100 flow [2024-11-10 22:16:31,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 22:16:31,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:31,041 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:31,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:16:31,041 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:31,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:31,042 INFO L85 PathProgramCache]: Analyzing trace with hash -486495523, now seen corresponding path program 1 times [2024-11-10 22:16:31,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:31,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484972725] [2024-11-10 22:16:31,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:31,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:31,254 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 22:16:31,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:31,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484972725] [2024-11-10 22:16:31,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484972725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:31,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:31,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:16:31,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362572631] [2024-11-10 22:16:31,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:31,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:16:31,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:31,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:16:31,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:16:31,271 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-10 22:16:31,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 22:16:31,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:31,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-10 22:16:31,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:31,399 INFO L124 PetriNetUnfolderBase]: 41/135 cut-off events. [2024-11-10 22:16:31,400 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-11-10 22:16:31,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 135 events. 41/135 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 513 event pairs, 17 based on Foata normal form. 7/142 useless extension candidates. Maximal degree in co-relation 300. Up to 44 conditions per place. [2024-11-10 22:16:31,404 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 22 selfloop transitions, 9 changer transitions 5/42 dead transitions. [2024-11-10 22:16:31,405 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 42 transitions, 224 flow [2024-11-10 22:16:31,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:16:31,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:16:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 70 transitions. [2024-11-10 22:16:31,409 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44871794871794873 [2024-11-10 22:16:31,409 INFO L175 Difference]: Start difference. First operand has 37 places, 26 transitions, 100 flow. Second operand 6 states and 70 transitions. [2024-11-10 22:16:31,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 42 transitions, 224 flow [2024-11-10 22:16:31,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 42 transitions, 220 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:16:31,414 INFO L231 Difference]: Finished difference. Result has 43 places, 29 transitions, 148 flow [2024-11-10 22:16:31,414 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=148, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2024-11-10 22:16:31,415 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 18 predicate places. [2024-11-10 22:16:31,415 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 29 transitions, 148 flow [2024-11-10 22:16:31,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 22:16:31,416 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:31,416 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:31,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:16:31,416 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:31,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:31,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2098508198, now seen corresponding path program 1 times [2024-11-10 22:16:31,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:31,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185513499] [2024-11-10 22:16:31,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:31,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:31,553 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 22:16:31,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:31,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185513499] [2024-11-10 22:16:31,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185513499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:31,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:31,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:16:31,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109913835] [2024-11-10 22:16:31,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:31,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:16:31,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:31,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:16:31,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:16:31,563 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-10 22:16:31,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 29 transitions, 148 flow. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 22:16:31,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:31,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-10 22:16:31,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:31,653 INFO L124 PetriNetUnfolderBase]: 26/98 cut-off events. [2024-11-10 22:16:31,654 INFO L125 PetriNetUnfolderBase]: For 136/138 co-relation queries the response was YES. [2024-11-10 22:16:31,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 98 events. 26/98 cut-off events. For 136/138 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 342 event pairs, 11 based on Foata normal form. 9/107 useless extension candidates. Maximal degree in co-relation 253. Up to 41 conditions per place. [2024-11-10 22:16:31,655 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 21 selfloop transitions, 8 changer transitions 1/36 dead transitions. [2024-11-10 22:16:31,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 228 flow [2024-11-10 22:16:31,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:16:31,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:16:31,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 66 transitions. [2024-11-10 22:16:31,657 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4230769230769231 [2024-11-10 22:16:31,657 INFO L175 Difference]: Start difference. First operand has 43 places, 29 transitions, 148 flow. Second operand 6 states and 66 transitions. [2024-11-10 22:16:31,657 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 228 flow [2024-11-10 22:16:31,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 36 transitions, 223 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:16:31,660 INFO L231 Difference]: Finished difference. Result has 46 places, 27 transitions, 145 flow [2024-11-10 22:16:31,660 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=145, PETRI_PLACES=46, PETRI_TRANSITIONS=27} [2024-11-10 22:16:31,661 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 21 predicate places. [2024-11-10 22:16:31,661 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 27 transitions, 145 flow [2024-11-10 22:16:31,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 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 22:16:31,661 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:31,662 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:31,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:16:31,662 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:31,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash 2104789962, now seen corresponding path program 1 times [2024-11-10 22:16:31,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:31,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209756177] [2024-11-10 22:16:31,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:31,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:31,808 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 22:16:31,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:31,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209756177] [2024-11-10 22:16:31,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209756177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:31,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:31,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 22:16:31,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615935908] [2024-11-10 22:16:31,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:31,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 22:16:31,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:31,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 22:16:31,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:16:31,819 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 26 [2024-11-10 22:16:31,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 27 transitions, 145 flow. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 22:16:31,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:31,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 26 [2024-11-10 22:16:31,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:31,953 INFO L124 PetriNetUnfolderBase]: 24/88 cut-off events. [2024-11-10 22:16:31,953 INFO L125 PetriNetUnfolderBase]: For 165/167 co-relation queries the response was YES. [2024-11-10 22:16:31,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 88 events. 24/88 cut-off events. For 165/167 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 286 event pairs, 4 based on Foata normal form. 8/96 useless extension candidates. Maximal degree in co-relation 240. Up to 37 conditions per place. [2024-11-10 22:16:31,956 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 20 selfloop transitions, 9 changer transitions 2/36 dead transitions. [2024-11-10 22:16:31,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 36 transitions, 235 flow [2024-11-10 22:16:31,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:16:31,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:16:31,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 81 transitions. [2024-11-10 22:16:31,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3894230769230769 [2024-11-10 22:16:31,961 INFO L175 Difference]: Start difference. First operand has 46 places, 27 transitions, 145 flow. Second operand 8 states and 81 transitions. [2024-11-10 22:16:31,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 36 transitions, 235 flow [2024-11-10 22:16:31,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 36 transitions, 204 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-10 22:16:31,966 INFO L231 Difference]: Finished difference. Result has 47 places, 25 transitions, 125 flow [2024-11-10 22:16:31,966 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=125, PETRI_PLACES=47, PETRI_TRANSITIONS=25} [2024-11-10 22:16:31,967 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 22 predicate places. [2024-11-10 22:16:31,967 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 25 transitions, 125 flow [2024-11-10 22:16:31,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 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 22:16:31,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:31,968 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:31,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:16:31,968 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:31,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:31,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1168353494, now seen corresponding path program 1 times [2024-11-10 22:16:31,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:31,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207546687] [2024-11-10 22:16:31,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:31,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:32,043 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 22:16:32,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:32,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207546687] [2024-11-10 22:16:32,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207546687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:32,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:32,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:16:32,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991350533] [2024-11-10 22:16:32,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:32,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:16:32,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:32,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:16:32,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:16:32,047 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 26 [2024-11-10 22:16:32,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 25 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 22:16:32,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:32,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 26 [2024-11-10 22:16:32,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:32,082 INFO L124 PetriNetUnfolderBase]: 12/57 cut-off events. [2024-11-10 22:16:32,082 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-11-10 22:16:32,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 57 events. 12/57 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 132 event pairs, 3 based on Foata normal form. 6/63 useless extension candidates. Maximal degree in co-relation 155. Up to 26 conditions per place. [2024-11-10 22:16:32,083 INFO L140 encePairwiseOnDemand]: 22/26 looper letters, 18 selfloop transitions, 4 changer transitions 0/29 dead transitions. [2024-11-10 22:16:32,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 29 transitions, 185 flow [2024-11-10 22:16:32,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:16:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:16:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-11-10 22:16:32,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5512820512820513 [2024-11-10 22:16:32,085 INFO L175 Difference]: Start difference. First operand has 47 places, 25 transitions, 125 flow. Second operand 3 states and 43 transitions. [2024-11-10 22:16:32,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 29 transitions, 185 flow [2024-11-10 22:16:32,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 29 transitions, 163 flow, removed 2 selfloop flow, removed 7 redundant places. [2024-11-10 22:16:32,087 INFO L231 Difference]: Finished difference. Result has 42 places, 25 transitions, 113 flow [2024-11-10 22:16:32,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=42, PETRI_TRANSITIONS=25} [2024-11-10 22:16:32,088 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 17 predicate places. [2024-11-10 22:16:32,088 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 25 transitions, 113 flow [2024-11-10 22:16:32,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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 22:16:32,089 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:32,089 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:32,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:16:32,089 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:32,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:32,090 INFO L85 PathProgramCache]: Analyzing trace with hash 899307193, now seen corresponding path program 1 times [2024-11-10 22:16:32,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:32,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576033065] [2024-11-10 22:16:32,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:32,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:32,276 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 22:16:32,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:32,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576033065] [2024-11-10 22:16:32,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576033065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:32,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:32,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 22:16:32,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100859757] [2024-11-10 22:16:32,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:32,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 22:16:32,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:32,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 22:16:32,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:16:32,300 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2024-11-10 22:16:32,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 25 transitions, 113 flow. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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 22:16:32,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:32,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2024-11-10 22:16:32,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:32,462 INFO L124 PetriNetUnfolderBase]: 15/68 cut-off events. [2024-11-10 22:16:32,462 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-10 22:16:32,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 68 events. 15/68 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 190 event pairs, 3 based on Foata normal form. 1/69 useless extension candidates. Maximal degree in co-relation 187. Up to 39 conditions per place. [2024-11-10 22:16:32,462 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 27 selfloop transitions, 7 changer transitions 0/36 dead transitions. [2024-11-10 22:16:32,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 36 transitions, 225 flow [2024-11-10 22:16:32,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:16:32,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:16:32,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 56 transitions. [2024-11-10 22:16:32,468 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2692307692307692 [2024-11-10 22:16:32,468 INFO L175 Difference]: Start difference. First operand has 42 places, 25 transitions, 113 flow. Second operand 8 states and 56 transitions. [2024-11-10 22:16:32,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 36 transitions, 225 flow [2024-11-10 22:16:32,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 36 transitions, 217 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:16:32,470 INFO L231 Difference]: Finished difference. Result has 52 places, 29 transitions, 161 flow [2024-11-10 22:16:32,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=161, PETRI_PLACES=52, PETRI_TRANSITIONS=29} [2024-11-10 22:16:32,472 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 27 predicate places. [2024-11-10 22:16:32,473 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 29 transitions, 161 flow [2024-11-10 22:16:32,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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 22:16:32,473 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:32,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:32,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:16:32,474 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:32,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:32,474 INFO L85 PathProgramCache]: Analyzing trace with hash -676343945, now seen corresponding path program 2 times [2024-11-10 22:16:32,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:32,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524997280] [2024-11-10 22:16:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:32,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:32,671 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 22:16:32,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:32,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524997280] [2024-11-10 22:16:32,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524997280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:32,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:32,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 22:16:32,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503731626] [2024-11-10 22:16:32,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:32,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 22:16:32,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:32,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 22:16:32,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:16:32,690 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2024-11-10 22:16:32,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 29 transitions, 161 flow. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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 22:16:32,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:32,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2024-11-10 22:16:32,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:32,810 INFO L124 PetriNetUnfolderBase]: 14/73 cut-off events. [2024-11-10 22:16:32,810 INFO L125 PetriNetUnfolderBase]: For 96/96 co-relation queries the response was YES. [2024-11-10 22:16:32,811 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 73 events. 14/73 cut-off events. For 96/96 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 227 event pairs, 12 based on Foata normal form. 1/74 useless extension candidates. Maximal degree in co-relation 218. Up to 47 conditions per place. [2024-11-10 22:16:32,811 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 23 selfloop transitions, 10 changer transitions 0/35 dead transitions. [2024-11-10 22:16:32,811 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 35 transitions, 257 flow [2024-11-10 22:16:32,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:16:32,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:16:32,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 51 transitions. [2024-11-10 22:16:32,813 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24519230769230768 [2024-11-10 22:16:32,813 INFO L175 Difference]: Start difference. First operand has 52 places, 29 transitions, 161 flow. Second operand 8 states and 51 transitions. [2024-11-10 22:16:32,813 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 35 transitions, 257 flow [2024-11-10 22:16:32,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 35 transitions, 250 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 22:16:32,815 INFO L231 Difference]: Finished difference. Result has 61 places, 32 transitions, 219 flow [2024-11-10 22:16:32,815 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=219, PETRI_PLACES=61, PETRI_TRANSITIONS=32} [2024-11-10 22:16:32,816 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 36 predicate places. [2024-11-10 22:16:32,816 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 32 transitions, 219 flow [2024-11-10 22:16:32,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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 22:16:32,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:32,816 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:32,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:16:32,816 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:32,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:32,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1224728594, now seen corresponding path program 1 times [2024-11-10 22:16:32,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:32,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813142394] [2024-11-10 22:16:32,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:32,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:33,095 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 22:16:33,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:33,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813142394] [2024-11-10 22:16:33,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813142394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:33,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:33,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:16:33,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897140412] [2024-11-10 22:16:33,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:33,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:16:33,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:33,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:16:33,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:16:33,123 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-10 22:16:33,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 32 transitions, 219 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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 22:16:33,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:33,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-10 22:16:33,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:33,286 INFO L124 PetriNetUnfolderBase]: 12/69 cut-off events. [2024-11-10 22:16:33,287 INFO L125 PetriNetUnfolderBase]: For 138/138 co-relation queries the response was YES. [2024-11-10 22:16:33,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 69 events. 12/69 cut-off events. For 138/138 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 219 event pairs, 2 based on Foata normal form. 2/71 useless extension candidates. Maximal degree in co-relation 231. Up to 20 conditions per place. [2024-11-10 22:16:33,289 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 24 selfloop transitions, 11 changer transitions 0/39 dead transitions. [2024-11-10 22:16:33,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 39 transitions, 307 flow [2024-11-10 22:16:33,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:16:33,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:16:33,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 66 transitions. [2024-11-10 22:16:33,291 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.28205128205128205 [2024-11-10 22:16:33,291 INFO L175 Difference]: Start difference. First operand has 61 places, 32 transitions, 219 flow. Second operand 9 states and 66 transitions. [2024-11-10 22:16:33,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 39 transitions, 307 flow [2024-11-10 22:16:33,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 39 transitions, 293 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-10 22:16:33,295 INFO L231 Difference]: Finished difference. Result has 64 places, 31 transitions, 223 flow [2024-11-10 22:16:33,296 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=223, PETRI_PLACES=64, PETRI_TRANSITIONS=31} [2024-11-10 22:16:33,296 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 39 predicate places. [2024-11-10 22:16:33,297 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 31 transitions, 223 flow [2024-11-10 22:16:33,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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 22:16:33,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:33,297 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:33,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:16:33,298 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:33,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:33,298 INFO L85 PathProgramCache]: Analyzing trace with hash -983787065, now seen corresponding path program 3 times [2024-11-10 22:16:33,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:33,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20278302] [2024-11-10 22:16:33,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:33,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:33,488 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 22:16:33,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:33,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20278302] [2024-11-10 22:16:33,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20278302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:33,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:33,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 22:16:33,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855137016] [2024-11-10 22:16:33,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:33,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 22:16:33,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:33,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 22:16:33,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:16:33,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 3 out of 26 [2024-11-10 22:16:33,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 31 transitions, 223 flow. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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 22:16:33,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:33,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 3 of 26 [2024-11-10 22:16:33,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:33,624 INFO L124 PetriNetUnfolderBase]: 13/69 cut-off events. [2024-11-10 22:16:33,625 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2024-11-10 22:16:33,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 69 events. 13/69 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 203 event pairs, 10 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 240. Up to 32 conditions per place. [2024-11-10 22:16:33,626 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 22 selfloop transitions, 10 changer transitions 0/34 dead transitions. [2024-11-10 22:16:33,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 34 transitions, 290 flow [2024-11-10 22:16:33,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 22:16:33,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 22:16:33,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 51 transitions. [2024-11-10 22:16:33,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24519230769230768 [2024-11-10 22:16:33,627 INFO L175 Difference]: Start difference. First operand has 64 places, 31 transitions, 223 flow. Second operand 8 states and 51 transitions. [2024-11-10 22:16:33,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 34 transitions, 290 flow [2024-11-10 22:16:33,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 34 transitions, 256 flow, removed 1 selfloop flow, removed 10 redundant places. [2024-11-10 22:16:33,629 INFO L231 Difference]: Finished difference. Result has 59 places, 30 transitions, 201 flow [2024-11-10 22:16:33,629 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=201, PETRI_PLACES=59, PETRI_TRANSITIONS=30} [2024-11-10 22:16:33,630 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 34 predicate places. [2024-11-10 22:16:33,630 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 30 transitions, 201 flow [2024-11-10 22:16:33,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 7 states have internal predecessors, (34), 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 22:16:33,631 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:33,631 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:33,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:16:33,631 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:33,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:33,632 INFO L85 PathProgramCache]: Analyzing trace with hash 688119477, now seen corresponding path program 1 times [2024-11-10 22:16:33,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:33,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272350860] [2024-11-10 22:16:33,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:33,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:33,877 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 22:16:33,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:33,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272350860] [2024-11-10 22:16:33,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272350860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:33,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:33,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:16:33,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982495378] [2024-11-10 22:16:33,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:33,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:16:33,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:33,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:16:33,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:16:33,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-10 22:16:33,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 30 transitions, 201 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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 22:16:33,906 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:33,906 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-10 22:16:33,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:34,052 INFO L124 PetriNetUnfolderBase]: 11/65 cut-off events. [2024-11-10 22:16:34,052 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2024-11-10 22:16:34,052 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 65 events. 11/65 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 197 event pairs, 2 based on Foata normal form. 2/67 useless extension candidates. Maximal degree in co-relation 214. Up to 19 conditions per place. [2024-11-10 22:16:34,053 INFO L140 encePairwiseOnDemand]: 17/26 looper letters, 13 selfloop transitions, 11 changer transitions 10/38 dead transitions. [2024-11-10 22:16:34,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 38 transitions, 296 flow [2024-11-10 22:16:34,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-10 22:16:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-10 22:16:34,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 73 transitions. [2024-11-10 22:16:34,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.25524475524475526 [2024-11-10 22:16:34,055 INFO L175 Difference]: Start difference. First operand has 59 places, 30 transitions, 201 flow. Second operand 11 states and 73 transitions. [2024-11-10 22:16:34,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 38 transitions, 296 flow [2024-11-10 22:16:34,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 38 transitions, 256 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-10 22:16:34,057 INFO L231 Difference]: Finished difference. Result has 58 places, 26 transitions, 175 flow [2024-11-10 22:16:34,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=175, PETRI_PLACES=58, PETRI_TRANSITIONS=26} [2024-11-10 22:16:34,058 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 33 predicate places. [2024-11-10 22:16:34,058 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 26 transitions, 175 flow [2024-11-10 22:16:34,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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 22:16:34,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:34,060 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:34,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:16:34,060 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:34,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:34,060 INFO L85 PathProgramCache]: Analyzing trace with hash -583184215, now seen corresponding path program 1 times [2024-11-10 22:16:34,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:34,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729707232] [2024-11-10 22:16:34,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:34,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:34,252 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 22:16:34,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:34,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729707232] [2024-11-10 22:16:34,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729707232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:34,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:34,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:16:34,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403482796] [2024-11-10 22:16:34,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:34,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:16:34,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:34,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:16:34,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:16:34,281 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-10 22:16:34,281 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 26 transitions, 175 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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 22:16:34,281 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:34,281 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-10 22:16:34,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:34,381 INFO L124 PetriNetUnfolderBase]: 4/50 cut-off events. [2024-11-10 22:16:34,381 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-11-10 22:16:34,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 50 events. 4/50 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 134 event pairs, 1 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 165. Up to 19 conditions per place. [2024-11-10 22:16:34,381 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 12 selfloop transitions, 8 changer transitions 9/33 dead transitions. [2024-11-10 22:16:34,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 33 transitions, 264 flow [2024-11-10 22:16:34,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:16:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:16:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 59 transitions. [2024-11-10 22:16:34,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.25213675213675213 [2024-11-10 22:16:34,383 INFO L175 Difference]: Start difference. First operand has 58 places, 26 transitions, 175 flow. Second operand 9 states and 59 transitions. [2024-11-10 22:16:34,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 33 transitions, 264 flow [2024-11-10 22:16:34,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 33 transitions, 219 flow, removed 1 selfloop flow, removed 9 redundant places. [2024-11-10 22:16:34,384 INFO L231 Difference]: Finished difference. Result has 50 places, 24 transitions, 146 flow [2024-11-10 22:16:34,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=146, PETRI_PLACES=50, PETRI_TRANSITIONS=24} [2024-11-10 22:16:34,385 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 25 predicate places. [2024-11-10 22:16:34,385 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 24 transitions, 146 flow [2024-11-10 22:16:34,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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 22:16:34,385 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:34,386 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:34,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:16:34,386 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:34,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:34,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1276174983, now seen corresponding path program 2 times [2024-11-10 22:16:34,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:34,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977018719] [2024-11-10 22:16:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:34,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:34,580 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 22:16:34,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:34,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977018719] [2024-11-10 22:16:34,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977018719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:34,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:34,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:16:34,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918129046] [2024-11-10 22:16:34,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:34,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:16:34,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:34,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:16:34,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:16:34,616 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-10 22:16:34,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 24 transitions, 146 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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 22:16:34,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:34,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-10 22:16:34,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:34,710 INFO L124 PetriNetUnfolderBase]: 1/32 cut-off events. [2024-11-10 22:16:34,710 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-10 22:16:34,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 32 events. 1/32 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 61 event pairs, 1 based on Foata normal form. 2/34 useless extension candidates. Maximal degree in co-relation 105. Up to 9 conditions per place. [2024-11-10 22:16:34,710 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 7 selfloop transitions, 5 changer transitions 9/24 dead transitions. [2024-11-10 22:16:34,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 24 transitions, 170 flow [2024-11-10 22:16:34,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:16:34,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:16:34,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 54 transitions. [2024-11-10 22:16:34,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23076923076923078 [2024-11-10 22:16:34,713 INFO L175 Difference]: Start difference. First operand has 50 places, 24 transitions, 146 flow. Second operand 9 states and 54 transitions. [2024-11-10 22:16:34,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 24 transitions, 170 flow [2024-11-10 22:16:34,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 24 transitions, 144 flow, removed 1 selfloop flow, removed 8 redundant places. [2024-11-10 22:16:34,714 INFO L231 Difference]: Finished difference. Result has 45 places, 15 transitions, 67 flow [2024-11-10 22:16:34,714 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=67, PETRI_PLACES=45, PETRI_TRANSITIONS=15} [2024-11-10 22:16:34,714 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 20 predicate places. [2024-11-10 22:16:34,714 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 15 transitions, 67 flow [2024-11-10 22:16:34,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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 22:16:34,715 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:16:34,715 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:34,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 22:16:34,715 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 22:16:34,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:16:34,715 INFO L85 PathProgramCache]: Analyzing trace with hash -432627699, now seen corresponding path program 3 times [2024-11-10 22:16:34,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:16:34,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356188599] [2024-11-10 22:16:34,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:16:34,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:16:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:16:34,899 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 22:16:34,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:16:34,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356188599] [2024-11-10 22:16:34,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356188599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:16:34,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:16:34,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:16:34,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701792075] [2024-11-10 22:16:34,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:16:34,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:16:34,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:16:34,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:16:34,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:16:34,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 26 [2024-11-10 22:16:34,928 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 15 transitions, 67 flow. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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 22:16:34,928 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:16:34,928 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 26 [2024-11-10 22:16:34,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:16:35,011 INFO L124 PetriNetUnfolderBase]: 1/16 cut-off events. [2024-11-10 22:16:35,011 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-10 22:16:35,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 16 events. 1/16 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 6 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 49. Up to 4 conditions per place. [2024-11-10 22:16:35,012 INFO L140 encePairwiseOnDemand]: 18/26 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-11-10 22:16:35,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 15 transitions, 86 flow [2024-11-10 22:16:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 22:16:35,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-10 22:16:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 49 transitions. [2024-11-10 22:16:35,013 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2094017094017094 [2024-11-10 22:16:35,013 INFO L175 Difference]: Start difference. First operand has 45 places, 15 transitions, 67 flow. Second operand 9 states and 49 transitions. [2024-11-10 22:16:35,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 15 transitions, 86 flow [2024-11-10 22:16:35,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 15 transitions, 62 flow, removed 1 selfloop flow, removed 11 redundant places. [2024-11-10 22:16:35,013 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2024-11-10 22:16:35,013 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=35, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2024-11-10 22:16:35,014 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 4 predicate places. [2024-11-10 22:16:35,014 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2024-11-10 22:16:35,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 9 states have internal predecessors, (48), 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 22:16:35,017 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2024-11-10 22:16:35,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2024-11-10 22:16:35,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-10 22:16:35,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2024-11-10 22:16:35,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2024-11-10 22:16:35,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2024-11-10 22:16:35,018 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2024-11-10 22:16:35,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 22:16:35,019 INFO L407 BasicCegarLoop]: Path program histogram: [3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:16:35,025 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:16:35,025 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:16:35,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:16:35 BasicIcfg [2024-11-10 22:16:35,030 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:16:35,031 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:16:35,031 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:16:35,031 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:16:35,032 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:16:29" (3/4) ... [2024-11-10 22:16:35,033 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:16:35,037 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-10 22:16:35,044 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2024-11-10 22:16:35,044 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-10 22:16:35,045 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-10 22:16:35,045 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-10 22:16:35,045 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-10 22:16:35,045 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 22:16:35,135 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:16:35,135 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:16:35,135 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:16:35,136 INFO L158 Benchmark]: Toolchain (without parser) took 6562.49ms. Allocated memory was 161.5MB in the beginning and 209.7MB in the end (delta: 48.2MB). Free memory was 124.9MB in the beginning and 161.8MB in the end (delta: -36.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-10 22:16:35,136 INFO L158 Benchmark]: CDTParser took 0.98ms. Allocated memory is still 121.6MB. Free memory was 83.2MB in the beginning and 83.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:16:35,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 596.05ms. Allocated memory is still 161.5MB. Free memory was 123.8MB in the beginning and 92.5MB in the end (delta: 31.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-10 22:16:35,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.23ms. Allocated memory is still 161.5MB. Free memory was 92.5MB in the beginning and 90.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:16:35,136 INFO L158 Benchmark]: Boogie Preprocessor took 38.77ms. Allocated memory is still 161.5MB. Free memory was 90.3MB in the beginning and 87.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:16:35,137 INFO L158 Benchmark]: IcfgBuilder took 664.37ms. Allocated memory is still 161.5MB. Free memory was 87.3MB in the beginning and 45.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-10 22:16:35,137 INFO L158 Benchmark]: TraceAbstraction took 5096.67ms. Allocated memory was 161.5MB in the beginning and 209.7MB in the end (delta: 48.2MB). Free memory was 44.4MB in the beginning and 167.0MB in the end (delta: -122.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:16:35,137 INFO L158 Benchmark]: Witness Printer took 104.14ms. Allocated memory is still 209.7MB. Free memory was 167.0MB in the beginning and 161.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-10 22:16:35,138 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98ms. Allocated memory is still 121.6MB. Free memory was 83.2MB in the beginning and 83.1MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 596.05ms. Allocated memory is still 161.5MB. Free memory was 123.8MB in the beginning and 92.5MB in the end (delta: 31.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.23ms. Allocated memory is still 161.5MB. Free memory was 92.5MB in the beginning and 90.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.77ms. Allocated memory is still 161.5MB. Free memory was 90.3MB in the beginning and 87.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 664.37ms. Allocated memory is still 161.5MB. Free memory was 87.3MB in the beginning and 45.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5096.67ms. Allocated memory was 161.5MB in the beginning and 209.7MB in the end (delta: 48.2MB). Free memory was 44.4MB in the beginning and 167.0MB in the end (delta: -122.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 104.14ms. Allocated memory is still 209.7MB. Free memory was 167.0MB in the beginning and 161.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 37 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.9s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 451 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 385 mSDsluCounter, 559 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 530 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1474 IncrementalHoareTripleChecker+Invalid, 1518 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 29 mSDtfsCounter, 1474 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=8, InterpolantAutomatonStates: 103, 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, 2.2s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 1080 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 22:16:35,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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