./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d 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/weaver/popl20-commit-1.wvr.c -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 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:54:43,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:54:43,690 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:54:43,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:54:43,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:54:43,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:54:43,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:54:43,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:54:43,726 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:54:43,727 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:54:43,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:54:43,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:54:43,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:54:43,729 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:54:43,730 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:54:43,730 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:54:43,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:54:43,730 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:54:43,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:54:43,731 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:54:43,731 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:54:43,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:54:43,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:54:43,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:54:43,734 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:54:43,734 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:54:43,735 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:54:43,735 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:54:43,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:54:43,735 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:54:43,735 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:54:43,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:54:43,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:54:43,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:54:43,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:54:43,736 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:54:43,736 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:54:43,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:54:43,737 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:54:43,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:54:43,737 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:54:43,737 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:54:43,737 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:54:43,737 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:54:43,738 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73c55a951ef2b92a665c2c32d76e33a5a03bdbde67ee3c8e6748faf493088c7e [2024-11-17 07:54:43,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:54:43,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:54:43,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:54:43,963 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:54:43,964 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:54:43,964 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2024-11-17 07:54:45,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:54:45,325 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:54:45,325 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-commit-1.wvr.c [2024-11-17 07:54:45,333 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86532d1d9/3437a89ee5f84ce7b0cb8f5c795a5657/FLAGaaf72035e [2024-11-17 07:54:45,347 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86532d1d9/3437a89ee5f84ce7b0cb8f5c795a5657 [2024-11-17 07:54:45,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:54:45,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:54:45,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:54:45,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:54:45,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:54:45,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70c6eb75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45, skipping insertion in model container [2024-11-17 07:54:45,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,382 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:54:45,564 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:54:45,576 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:54:45,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:54:45,650 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:54:45,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45 WrapperNode [2024-11-17 07:54:45,651 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:54:45,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:54:45,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:54:45,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:54:45,657 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,684 INFO L138 Inliner]: procedures = 24, calls = 54, calls flagged for inlining = 21, calls inlined = 25, statements flattened = 355 [2024-11-17 07:54:45,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:54:45,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:54:45,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:54:45,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:54:45,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,702 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,719 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-17 07:54:45,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,726 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,728 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:54:45,734 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:54:45,734 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:54:45,734 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:54:45,737 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (1/1) ... [2024-11-17 07:54:45,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:54:45,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:45,764 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) [2024-11-17 07:54:45,766 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 [2024-11-17 07:54:45,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:54:45,800 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:54:45,800 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:54:45,801 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:54:45,801 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:54:45,801 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-17 07:54:45,801 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-17 07:54:45,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:54:45,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:54:45,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:54:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:54:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 07:54:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 07:54:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 07:54:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:54:45,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:54:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:54:45,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:54:45,805 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:54:45,923 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:54:45,926 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:54:46,312 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:54:46,312 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:54:46,639 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:54:46,639 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:54:46,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:54:46 BoogieIcfgContainer [2024-11-17 07:54:46,640 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:54:46,641 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:54:46,641 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:54:46,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:54:46,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:54:45" (1/3) ... [2024-11-17 07:54:46,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732888c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:54:46, skipping insertion in model container [2024-11-17 07:54:46,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:45" (2/3) ... [2024-11-17 07:54:46,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732888c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:54:46, skipping insertion in model container [2024-11-17 07:54:46,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:54:46" (3/3) ... [2024-11-17 07:54:46,647 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-1.wvr.c [2024-11-17 07:54:46,660 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:54:46,660 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-17 07:54:46,660 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:54:46,736 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-17 07:54:46,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 83 transitions, 187 flow [2024-11-17 07:54:46,796 INFO L124 PetriNetUnfolderBase]: 12/80 cut-off events. [2024-11-17 07:54:46,797 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-17 07:54:46,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 80 events. 12/80 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 213 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 66. Up to 2 conditions per place. [2024-11-17 07:54:46,801 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 83 transitions, 187 flow [2024-11-17 07:54:46,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 78 transitions, 171 flow [2024-11-17 07:54:46,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:54:46,817 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;@63931077, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:54:46,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2024-11-17 07:54:46,820 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:54:46,820 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:54:46,820 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:54:46,820 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:46,821 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:54:46,821 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:46,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:46,826 INFO L85 PathProgramCache]: Analyzing trace with hash 29681629, now seen corresponding path program 1 times [2024-11-17 07:54:46,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:46,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406724921] [2024-11-17 07:54:46,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:46,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:47,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:47,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:47,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406724921] [2024-11-17 07:54:47,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406724921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:47,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:47,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:54:47,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803074974] [2024-11-17 07:54:47,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:47,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:54:47,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:47,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:54:47,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:54:47,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 83 [2024-11-17 07:54:47,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 78 transitions, 171 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-17 07:54:47,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:47,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 83 [2024-11-17 07:54:47,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:47,996 INFO L124 PetriNetUnfolderBase]: 5880/8373 cut-off events. [2024-11-17 07:54:47,997 INFO L125 PetriNetUnfolderBase]: For 356/356 co-relation queries the response was YES. [2024-11-17 07:54:48,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17068 conditions, 8373 events. 5880/8373 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 43350 event pairs, 5179 based on Foata normal form. 9/5924 useless extension candidates. Maximal degree in co-relation 16379. Up to 8331 conditions per place. [2024-11-17 07:54:48,071 INFO L140 encePairwiseOnDemand]: 53/83 looper letters, 51 selfloop transitions, 10 changer transitions 0/73 dead transitions. [2024-11-17 07:54:48,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 73 transitions, 283 flow [2024-11-17 07:54:48,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:54:48,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:54:48,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 144 transitions. [2024-11-17 07:54:48,083 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43373493975903615 [2024-11-17 07:54:48,084 INFO L175 Difference]: Start difference. First operand has 76 places, 78 transitions, 171 flow. Second operand 4 states and 144 transitions. [2024-11-17 07:54:48,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 73 transitions, 283 flow [2024-11-17 07:54:48,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 73 transitions, 274 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-17 07:54:48,099 INFO L231 Difference]: Finished difference. Result has 69 places, 73 transitions, 222 flow [2024-11-17 07:54:48,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=69, PETRI_TRANSITIONS=73} [2024-11-17 07:54:48,105 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, -7 predicate places. [2024-11-17 07:54:48,106 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 73 transitions, 222 flow [2024-11-17 07:54:48,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2024-11-17 07:54:48,106 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:48,106 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:54:48,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:54:48,107 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:48,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:48,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1153085375, now seen corresponding path program 1 times [2024-11-17 07:54:48,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:48,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793537064] [2024-11-17 07:54:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:48,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:48,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:48,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:48,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793537064] [2024-11-17 07:54:48,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793537064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:54:48,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084349696] [2024-11-17 07:54:48,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:48,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:48,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:48,245 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:54:48,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:54:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:48,325 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:54:48,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:54:48,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:48,373 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:54:48,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084349696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:48,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:54:48,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:54:48,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916774967] [2024-11-17 07:54:48,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:48,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:54:48,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:48,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:54:48,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:54:48,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 83 [2024-11-17 07:54:48,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 73 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:54:48,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:48,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 83 [2024-11-17 07:54:48,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:49,144 INFO L124 PetriNetUnfolderBase]: 5880/8370 cut-off events. [2024-11-17 07:54:49,145 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2024-11-17 07:54:49,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16990 conditions, 8370 events. 5880/8370 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 390. Compared 43321 event pairs, 5179 based on Foata normal form. 3/5915 useless extension candidates. Maximal degree in co-relation 16911. Up to 8316 conditions per place. [2024-11-17 07:54:49,217 INFO L140 encePairwiseOnDemand]: 70/83 looper letters, 41 selfloop transitions, 17 changer transitions 0/70 dead transitions. [2024-11-17 07:54:49,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 70 transitions, 326 flow [2024-11-17 07:54:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:54:49,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:54:49,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 151 transitions. [2024-11-17 07:54:49,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3032128514056225 [2024-11-17 07:54:49,219 INFO L175 Difference]: Start difference. First operand has 69 places, 73 transitions, 222 flow. Second operand 6 states and 151 transitions. [2024-11-17 07:54:49,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 70 transitions, 326 flow [2024-11-17 07:54:49,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 70 transitions, 326 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:54:49,221 INFO L231 Difference]: Finished difference. Result has 71 places, 70 transitions, 244 flow [2024-11-17 07:54:49,221 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=244, PETRI_PLACES=71, PETRI_TRANSITIONS=70} [2024-11-17 07:54:49,222 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, -5 predicate places. [2024-11-17 07:54:49,222 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 70 transitions, 244 flow [2024-11-17 07:54:49,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:54:49,222 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:49,222 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:54:49,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:54:49,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:49,426 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:49,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:49,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1385909122, now seen corresponding path program 1 times [2024-11-17 07:54:49,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:49,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076268957] [2024-11-17 07:54:49,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:49,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:49,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:49,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076268957] [2024-11-17 07:54:49,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076268957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:54:49,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633741743] [2024-11-17 07:54:49,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:49,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:49,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:49,523 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:54:49,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:54:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:49,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:54:49,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:54:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:49,614 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:54:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:49,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633741743] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:54:49,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:54:49,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-17 07:54:49,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112752691] [2024-11-17 07:54:49,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:54:49,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:54:49,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:49,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:54:49,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:54:49,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 83 [2024-11-17 07:54:49,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 70 transitions, 244 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 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) [2024-11-17 07:54:49,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:49,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 83 [2024-11-17 07:54:49,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:50,516 INFO L124 PetriNetUnfolderBase]: 5889/8424 cut-off events. [2024-11-17 07:54:50,517 INFO L125 PetriNetUnfolderBase]: For 261/261 co-relation queries the response was YES. [2024-11-17 07:54:50,523 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17149 conditions, 8424 events. 5889/8424 cut-off events. For 261/261 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 43948 event pairs, 5179 based on Foata normal form. 9/5978 useless extension candidates. Maximal degree in co-relation 16913. Up to 8331 conditions per place. [2024-11-17 07:54:50,542 INFO L140 encePairwiseOnDemand]: 70/83 looper letters, 48 selfloop transitions, 37 changer transitions 0/97 dead transitions. [2024-11-17 07:54:50,542 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 97 transitions, 588 flow [2024-11-17 07:54:50,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:54:50,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:54:50,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 244 transitions. [2024-11-17 07:54:50,544 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29397590361445786 [2024-11-17 07:54:50,544 INFO L175 Difference]: Start difference. First operand has 71 places, 70 transitions, 244 flow. Second operand 10 states and 244 transitions. [2024-11-17 07:54:50,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 97 transitions, 588 flow [2024-11-17 07:54:50,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 97 transitions, 505 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-17 07:54:50,547 INFO L231 Difference]: Finished difference. Result has 78 places, 97 transitions, 459 flow [2024-11-17 07:54:50,547 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=459, PETRI_PLACES=78, PETRI_TRANSITIONS=97} [2024-11-17 07:54:50,548 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 2 predicate places. [2024-11-17 07:54:50,548 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 97 transitions, 459 flow [2024-11-17 07:54:50,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 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) [2024-11-17 07:54:50,548 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:50,548 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:50,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-17 07:54:50,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-17 07:54:50,754 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:50,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:50,754 INFO L85 PathProgramCache]: Analyzing trace with hash 2090899079, now seen corresponding path program 1 times [2024-11-17 07:54:50,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:50,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014212554] [2024-11-17 07:54:50,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:50,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:50,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:50,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:50,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014212554] [2024-11-17 07:54:50,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014212554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:50,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:50,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:54:50,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541812988] [2024-11-17 07:54:50,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:50,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:54:50,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:50,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:54:50,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:54:50,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2024-11-17 07:54:50,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 97 transitions, 459 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-11-17 07:54:50,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:50,832 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2024-11-17 07:54:50,832 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:51,445 INFO L124 PetriNetUnfolderBase]: 7159/10252 cut-off events. [2024-11-17 07:54:51,446 INFO L125 PetriNetUnfolderBase]: For 356/356 co-relation queries the response was YES. [2024-11-17 07:54:51,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20874 conditions, 10252 events. 7159/10252 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 55002 event pairs, 2362 based on Foata normal form. 114/7415 useless extension candidates. Maximal degree in co-relation 20770. Up to 8328 conditions per place. [2024-11-17 07:54:51,474 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 102 selfloop transitions, 3 changer transitions 0/120 dead transitions. [2024-11-17 07:54:51,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 120 transitions, 719 flow [2024-11-17 07:54:51,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:54:51,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:54:51,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2024-11-17 07:54:51,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5381526104417671 [2024-11-17 07:54:51,477 INFO L175 Difference]: Start difference. First operand has 78 places, 97 transitions, 459 flow. Second operand 3 states and 134 transitions. [2024-11-17 07:54:51,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 120 transitions, 719 flow [2024-11-17 07:54:51,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 120 transitions, 682 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-17 07:54:51,482 INFO L231 Difference]: Finished difference. Result has 79 places, 99 transitions, 443 flow [2024-11-17 07:54:51,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=79, PETRI_TRANSITIONS=99} [2024-11-17 07:54:51,484 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 3 predicate places. [2024-11-17 07:54:51,484 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 99 transitions, 443 flow [2024-11-17 07:54:51,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-11-17 07:54:51,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:51,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:51,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:54:51,485 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:51,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:51,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1396742132, now seen corresponding path program 1 times [2024-11-17 07:54:51,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:51,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52712022] [2024-11-17 07:54:51,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:51,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:51,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:51,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52712022] [2024-11-17 07:54:51,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52712022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:51,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:51,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:54:51,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264961976] [2024-11-17 07:54:51,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:51,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:54:51,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:51,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:54:51,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:54:51,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2024-11-17 07:54:51,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 99 transitions, 443 flow. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-17 07:54:51,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:51,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2024-11-17 07:54:51,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:52,266 INFO L124 PetriNetUnfolderBase]: 6818/9802 cut-off events. [2024-11-17 07:54:52,267 INFO L125 PetriNetUnfolderBase]: For 601/601 co-relation queries the response was YES. [2024-11-17 07:54:52,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20790 conditions, 9802 events. 6818/9802 cut-off events. For 601/601 co-relation queries the response was YES. Maximal size of possible extension queue 286. Compared 49269 event pairs, 2901 based on Foata normal form. 212/7678 useless extension candidates. Maximal degree in co-relation 20689. Up to 6361 conditions per place. [2024-11-17 07:54:52,310 INFO L140 encePairwiseOnDemand]: 79/83 looper letters, 104 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2024-11-17 07:54:52,310 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 121 transitions, 704 flow [2024-11-17 07:54:52,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:54:52,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:54:52,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 134 transitions. [2024-11-17 07:54:52,311 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5381526104417671 [2024-11-17 07:54:52,311 INFO L175 Difference]: Start difference. First operand has 79 places, 99 transitions, 443 flow. Second operand 3 states and 134 transitions. [2024-11-17 07:54:52,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 121 transitions, 704 flow [2024-11-17 07:54:52,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 121 transitions, 702 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:54:52,314 INFO L231 Difference]: Finished difference. Result has 81 places, 99 transitions, 450 flow [2024-11-17 07:54:52,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=450, PETRI_PLACES=81, PETRI_TRANSITIONS=99} [2024-11-17 07:54:52,315 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 5 predicate places. [2024-11-17 07:54:52,315 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 99 transitions, 450 flow [2024-11-17 07:54:52,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2024-11-17 07:54:52,316 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:52,316 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:52,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:54:52,316 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:52,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:52,317 INFO L85 PathProgramCache]: Analyzing trace with hash 935590737, now seen corresponding path program 1 times [2024-11-17 07:54:52,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:52,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187986503] [2024-11-17 07:54:52,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:52,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:52,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:52,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:52,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187986503] [2024-11-17 07:54:52,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187986503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:52,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:52,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:54:52,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991209415] [2024-11-17 07:54:52,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:52,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:54:52,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:52,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:54:52,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:54:52,422 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 83 [2024-11-17 07:54:52,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 99 transitions, 450 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2024-11-17 07:54:52,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:52,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 83 [2024-11-17 07:54:52,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:53,232 INFO L124 PetriNetUnfolderBase]: 7435/10825 cut-off events. [2024-11-17 07:54:53,232 INFO L125 PetriNetUnfolderBase]: For 916/916 co-relation queries the response was YES. [2024-11-17 07:54:53,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23592 conditions, 10825 events. 7435/10825 cut-off events. For 916/916 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 56152 event pairs, 6755 based on Foata normal form. 112/8642 useless extension candidates. Maximal degree in co-relation 23424. Up to 9753 conditions per place. [2024-11-17 07:54:53,265 INFO L140 encePairwiseOnDemand]: 74/83 looper letters, 106 selfloop transitions, 9 changer transitions 27/154 dead transitions. [2024-11-17 07:54:53,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 154 transitions, 979 flow [2024-11-17 07:54:53,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:54:53,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:54:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 181 transitions. [2024-11-17 07:54:53,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43614457831325304 [2024-11-17 07:54:53,267 INFO L175 Difference]: Start difference. First operand has 81 places, 99 transitions, 450 flow. Second operand 5 states and 181 transitions. [2024-11-17 07:54:53,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 154 transitions, 979 flow [2024-11-17 07:54:53,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 154 transitions, 977 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:54:53,270 INFO L231 Difference]: Finished difference. Result has 87 places, 106 transitions, 542 flow [2024-11-17 07:54:53,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=542, PETRI_PLACES=87, PETRI_TRANSITIONS=106} [2024-11-17 07:54:53,270 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 11 predicate places. [2024-11-17 07:54:53,271 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 106 transitions, 542 flow [2024-11-17 07:54:53,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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) [2024-11-17 07:54:53,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:53,271 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-17 07:54:53,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:54:53,271 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:53,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:53,271 INFO L85 PathProgramCache]: Analyzing trace with hash 2012393116, now seen corresponding path program 2 times [2024-11-17 07:54:53,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:53,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862029394] [2024-11-17 07:54:53,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:53,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:53,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:53,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862029394] [2024-11-17 07:54:53,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862029394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:54:53,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56482746] [2024-11-17 07:54:53,371 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:54:53,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:53,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:53,373 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:54:53,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:54:53,439 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:54:53,439 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:54:53,440 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 07:54:53,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:54:53,475 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:54:53,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:54:53,512 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:54:53,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56482746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:54:53,512 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:54:53,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-17 07:54:53,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486904784] [2024-11-17 07:54:53,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:54:53,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 07:54:53,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:53,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 07:54:53,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-17 07:54:53,551 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2024-11-17 07:54:53,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 106 transitions, 542 flow. Second operand has 14 states, 14 states have (on average 13.142857142857142) internal successors, (184), 14 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:54:53,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:53,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2024-11-17 07:54:53,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:54,386 INFO L124 PetriNetUnfolderBase]: 7439/10849 cut-off events. [2024-11-17 07:54:54,387 INFO L125 PetriNetUnfolderBase]: For 1427/1427 co-relation queries the response was YES. [2024-11-17 07:54:54,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24026 conditions, 10849 events. 7439/10849 cut-off events. For 1427/1427 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 57603 event pairs, 6755 based on Foata normal form. 10/8552 useless extension candidates. Maximal degree in co-relation 23789. Up to 10655 conditions per place. [2024-11-17 07:54:54,422 INFO L140 encePairwiseOnDemand]: 70/83 looper letters, 56 selfloop transitions, 53 changer transitions 9/127 dead transitions. [2024-11-17 07:54:54,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 127 transitions, 855 flow [2024-11-17 07:54:54,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-17 07:54:54,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-17 07:54:54,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 283 transitions. [2024-11-17 07:54:54,424 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24354561101549052 [2024-11-17 07:54:54,424 INFO L175 Difference]: Start difference. First operand has 87 places, 106 transitions, 542 flow. Second operand 14 states and 283 transitions. [2024-11-17 07:54:54,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 127 transitions, 855 flow [2024-11-17 07:54:54,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 127 transitions, 815 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-17 07:54:54,429 INFO L231 Difference]: Finished difference. Result has 92 places, 104 transitions, 569 flow [2024-11-17 07:54:54,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=569, PETRI_PLACES=92, PETRI_TRANSITIONS=104} [2024-11-17 07:54:54,429 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 16 predicate places. [2024-11-17 07:54:54,430 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 104 transitions, 569 flow [2024-11-17 07:54:54,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.142857142857142) internal successors, (184), 14 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:54:54,430 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:54,430 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:54,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-17 07:54:54,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:54,631 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:54,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:54,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1838337233, now seen corresponding path program 1 times [2024-11-17 07:54:54,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:54,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607791759] [2024-11-17 07:54:54,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:54,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:54,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:54,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:54,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607791759] [2024-11-17 07:54:54,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607791759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:54:54,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238047263] [2024-11-17 07:54:54,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:54,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:54,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:54,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:54:54,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 07:54:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:54,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:54:54,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:54:54,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:54:54,837 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:54:54,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238047263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:54,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:54:54,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-17 07:54:54,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514899772] [2024-11-17 07:54:54,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:54,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:54:54,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:54,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:54:54,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-17 07:54:54,839 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2024-11-17 07:54:54,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 104 transitions, 569 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-17 07:54:54,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:54,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2024-11-17 07:54:54,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:55,202 INFO L124 PetriNetUnfolderBase]: 4797/6955 cut-off events. [2024-11-17 07:54:55,202 INFO L125 PetriNetUnfolderBase]: For 1071/1071 co-relation queries the response was YES. [2024-11-17 07:54:55,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15239 conditions, 6955 events. 4797/6955 cut-off events. For 1071/1071 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 34337 event pairs, 4276 based on Foata normal form. 448/6025 useless extension candidates. Maximal degree in co-relation 15120. Up to 6889 conditions per place. [2024-11-17 07:54:55,222 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 87 selfloop transitions, 1 changer transitions 0/100 dead transitions. [2024-11-17 07:54:55,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 100 transitions, 733 flow [2024-11-17 07:54:55,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:54:55,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:54:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-17 07:54:55,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43775100401606426 [2024-11-17 07:54:55,223 INFO L175 Difference]: Start difference. First operand has 92 places, 104 transitions, 569 flow. Second operand 3 states and 109 transitions. [2024-11-17 07:54:55,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 100 transitions, 733 flow [2024-11-17 07:54:55,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 100 transitions, 524 flow, removed 23 selfloop flow, removed 14 redundant places. [2024-11-17 07:54:55,227 INFO L231 Difference]: Finished difference. Result has 74 places, 100 transitions, 350 flow [2024-11-17 07:54:55,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=348, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=350, PETRI_PLACES=74, PETRI_TRANSITIONS=100} [2024-11-17 07:54:55,227 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, -2 predicate places. [2024-11-17 07:54:55,229 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 100 transitions, 350 flow [2024-11-17 07:54:55,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2024-11-17 07:54:55,229 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:55,229 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:55,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-17 07:54:55,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:55,430 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:55,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:55,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1153878350, now seen corresponding path program 1 times [2024-11-17 07:54:55,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:55,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978857792] [2024-11-17 07:54:55,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:55,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:55,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:54:55,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:55,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978857792] [2024-11-17 07:54:55,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978857792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:55,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:55,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:54:55,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134532648] [2024-11-17 07:54:55,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:55,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:54:55,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:55,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:54:55,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:54:55,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2024-11-17 07:54:55,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 100 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-17 07:54:55,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:55,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2024-11-17 07:54:55,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:55,782 INFO L124 PetriNetUnfolderBase]: 3767/5517 cut-off events. [2024-11-17 07:54:55,782 INFO L125 PetriNetUnfolderBase]: For 579/579 co-relation queries the response was YES. [2024-11-17 07:54:55,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12027 conditions, 5517 events. 3767/5517 cut-off events. For 579/579 co-relation queries the response was YES. Maximal size of possible extension queue 208. Compared 25618 event pairs, 1727 based on Foata normal form. 124/4537 useless extension candidates. Maximal degree in co-relation 12013. Up to 4119 conditions per place. [2024-11-17 07:54:55,795 INFO L140 encePairwiseOnDemand]: 79/83 looper letters, 103 selfloop transitions, 2 changer transitions 6/123 dead transitions. [2024-11-17 07:54:55,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 123 transitions, 628 flow [2024-11-17 07:54:55,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:54:55,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:54:55,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 132 transitions. [2024-11-17 07:54:55,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5301204819277109 [2024-11-17 07:54:55,796 INFO L175 Difference]: Start difference. First operand has 74 places, 100 transitions, 350 flow. Second operand 3 states and 132 transitions. [2024-11-17 07:54:55,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 123 transitions, 628 flow [2024-11-17 07:54:55,797 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 123 transitions, 627 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:54:55,798 INFO L231 Difference]: Finished difference. Result has 76 places, 101 transitions, 363 flow [2024-11-17 07:54:55,798 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=363, PETRI_PLACES=76, PETRI_TRANSITIONS=101} [2024-11-17 07:54:55,799 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 0 predicate places. [2024-11-17 07:54:55,799 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 101 transitions, 363 flow [2024-11-17 07:54:55,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2024-11-17 07:54:55,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:55,799 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:55,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:54:55,799 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:55,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:55,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1559411235, now seen corresponding path program 1 times [2024-11-17 07:54:55,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:55,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710884161] [2024-11-17 07:54:55,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:55,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:54:55,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:55,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710884161] [2024-11-17 07:54:55,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710884161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:55,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:55,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:54:55,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263272911] [2024-11-17 07:54:55,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:55,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:54:55,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:55,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:54:55,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:54:55,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 83 [2024-11-17 07:54:55,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 101 transitions, 363 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-11-17 07:54:55,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:55,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 83 [2024-11-17 07:54:55,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:56,261 INFO L124 PetriNetUnfolderBase]: 4502/6672 cut-off events. [2024-11-17 07:54:56,261 INFO L125 PetriNetUnfolderBase]: For 748/748 co-relation queries the response was YES. [2024-11-17 07:54:56,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14947 conditions, 6672 events. 4502/6672 cut-off events. For 748/748 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 32533 event pairs, 4052 based on Foata normal form. 20/5510 useless extension candidates. Maximal degree in co-relation 14931. Up to 5419 conditions per place. [2024-11-17 07:54:56,279 INFO L140 encePairwiseOnDemand]: 76/83 looper letters, 83 selfloop transitions, 8 changer transitions 24/124 dead transitions. [2024-11-17 07:54:56,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 124 transitions, 649 flow [2024-11-17 07:54:56,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:54:56,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:54:56,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 163 transitions. [2024-11-17 07:54:56,280 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3927710843373494 [2024-11-17 07:54:56,281 INFO L175 Difference]: Start difference. First operand has 76 places, 101 transitions, 363 flow. Second operand 5 states and 163 transitions. [2024-11-17 07:54:56,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 124 transitions, 649 flow [2024-11-17 07:54:56,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 124 transitions, 647 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:54:56,283 INFO L231 Difference]: Finished difference. Result has 81 places, 100 transitions, 393 flow [2024-11-17 07:54:56,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=361, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=393, PETRI_PLACES=81, PETRI_TRANSITIONS=100} [2024-11-17 07:54:56,284 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 5 predicate places. [2024-11-17 07:54:56,284 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 100 transitions, 393 flow [2024-11-17 07:54:56,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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) [2024-11-17 07:54:56,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:56,284 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:56,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:54:56,284 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:56,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:56,285 INFO L85 PathProgramCache]: Analyzing trace with hash -946864883, now seen corresponding path program 1 times [2024-11-17 07:54:56,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:56,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325846658] [2024-11-17 07:54:56,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:56,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:56,400 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:54:56,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:56,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325846658] [2024-11-17 07:54:56,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325846658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:54:56,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052495120] [2024-11-17 07:54:56,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:56,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:56,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:56,403 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:54:56,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 07:54:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:56,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:54:56,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:54:56,514 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 07:54:56,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:54:56,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052495120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:56,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:54:56,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-17 07:54:56,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733998342] [2024-11-17 07:54:56,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:56,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:54:56,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:56,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:54:56,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-17 07:54:56,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2024-11-17 07:54:56,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 100 transitions, 393 flow. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-11-17 07:54:56,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:56,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2024-11-17 07:54:56,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:56,899 INFO L124 PetriNetUnfolderBase]: 3135/4623 cut-off events. [2024-11-17 07:54:56,899 INFO L125 PetriNetUnfolderBase]: For 766/766 co-relation queries the response was YES. [2024-11-17 07:54:56,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10410 conditions, 4623 events. 3135/4623 cut-off events. For 766/766 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 21080 event pairs, 2748 based on Foata normal form. 108/4008 useless extension candidates. Maximal degree in co-relation 10391. Up to 4558 conditions per place. [2024-11-17 07:54:56,912 INFO L140 encePairwiseOnDemand]: 80/83 looper letters, 85 selfloop transitions, 1 changer transitions 0/98 dead transitions. [2024-11-17 07:54:56,912 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 98 transitions, 557 flow [2024-11-17 07:54:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:54:56,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:54:56,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-11-17 07:54:56,913 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42168674698795183 [2024-11-17 07:54:56,913 INFO L175 Difference]: Start difference. First operand has 81 places, 100 transitions, 393 flow. Second operand 3 states and 105 transitions. [2024-11-17 07:54:56,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 98 transitions, 557 flow [2024-11-17 07:54:56,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 98 transitions, 539 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-17 07:54:56,916 INFO L231 Difference]: Finished difference. Result has 77 places, 98 transitions, 369 flow [2024-11-17 07:54:56,916 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=369, PETRI_PLACES=77, PETRI_TRANSITIONS=98} [2024-11-17 07:54:56,917 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 1 predicate places. [2024-11-17 07:54:56,917 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 98 transitions, 369 flow [2024-11-17 07:54:56,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2024-11-17 07:54:56,917 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:56,918 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:56,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-17 07:54:57,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-17 07:54:57,119 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:57,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:57,120 INFO L85 PathProgramCache]: Analyzing trace with hash 595946128, now seen corresponding path program 1 times [2024-11-17 07:54:57,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:57,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005818399] [2024-11-17 07:54:57,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:57,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:57,246 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 07:54:57,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:57,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005818399] [2024-11-17 07:54:57,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005818399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:57,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:57,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:54:57,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841838332] [2024-11-17 07:54:57,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:57,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:54:57,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:57,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:54:57,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:54:57,253 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 83 [2024-11-17 07:54:57,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 98 transitions, 369 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-17 07:54:57,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:57,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 83 [2024-11-17 07:54:57,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:57,741 INFO L124 PetriNetUnfolderBase]: 3913/5878 cut-off events. [2024-11-17 07:54:57,742 INFO L125 PetriNetUnfolderBase]: For 694/694 co-relation queries the response was YES. [2024-11-17 07:54:57,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13051 conditions, 5878 events. 3913/5878 cut-off events. For 694/694 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 28278 event pairs, 3518 based on Foata normal form. 28/4973 useless extension candidates. Maximal degree in co-relation 13033. Up to 4549 conditions per place. [2024-11-17 07:54:57,758 INFO L140 encePairwiseOnDemand]: 75/83 looper letters, 80 selfloop transitions, 8 changer transitions 46/143 dead transitions. [2024-11-17 07:54:57,758 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 143 transitions, 777 flow [2024-11-17 07:54:57,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:54:57,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:54:57,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 173 transitions. [2024-11-17 07:54:57,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41686746987951806 [2024-11-17 07:54:57,759 INFO L175 Difference]: Start difference. First operand has 77 places, 98 transitions, 369 flow. Second operand 5 states and 173 transitions. [2024-11-17 07:54:57,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 143 transitions, 777 flow [2024-11-17 07:54:57,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 143 transitions, 776 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:54:57,762 INFO L231 Difference]: Finished difference. Result has 83 places, 97 transitions, 400 flow [2024-11-17 07:54:57,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=400, PETRI_PLACES=83, PETRI_TRANSITIONS=97} [2024-11-17 07:54:57,763 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 7 predicate places. [2024-11-17 07:54:57,763 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 97 transitions, 400 flow [2024-11-17 07:54:57,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 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) [2024-11-17 07:54:57,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:57,763 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:57,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 07:54:57,764 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:57,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:57,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1694530962, now seen corresponding path program 1 times [2024-11-17 07:54:57,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:57,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032465889] [2024-11-17 07:54:57,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:57,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:57,909 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 07:54:57,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:57,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032465889] [2024-11-17 07:54:57,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032465889] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:54:57,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036771251] [2024-11-17 07:54:57,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:57,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:57,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:57,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:54:57,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 07:54:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:58,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-17 07:54:58,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:54:58,138 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 07:54:58,138 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:54:58,277 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 07:54:58,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036771251] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:54:58,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:54:58,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2024-11-17 07:54:58,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943938446] [2024-11-17 07:54:58,278 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:54:58,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-17 07:54:58,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:58,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-17 07:54:58,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-17 07:54:58,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 83 [2024-11-17 07:54:58,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 97 transitions, 400 flow. Second operand has 15 states, 15 states have (on average 16.066666666666666) internal successors, (241), 15 states have internal predecessors, (241), 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) [2024-11-17 07:54:58,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:58,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 83 [2024-11-17 07:54:58,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:59,341 INFO L124 PetriNetUnfolderBase]: 5614/8649 cut-off events. [2024-11-17 07:54:59,341 INFO L125 PetriNetUnfolderBase]: For 1135/1135 co-relation queries the response was YES. [2024-11-17 07:54:59,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19124 conditions, 8649 events. 5614/8649 cut-off events. For 1135/1135 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 46406 event pairs, 3464 based on Foata normal form. 176/7445 useless extension candidates. Maximal degree in co-relation 19102. Up to 3558 conditions per place. [2024-11-17 07:54:59,361 INFO L140 encePairwiseOnDemand]: 65/83 looper letters, 54 selfloop transitions, 41 changer transitions 203/307 dead transitions. [2024-11-17 07:54:59,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 307 transitions, 1645 flow [2024-11-17 07:54:59,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-17 07:54:59,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-17 07:54:59,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 532 transitions. [2024-11-17 07:54:59,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.24652455977757182 [2024-11-17 07:54:59,363 INFO L175 Difference]: Start difference. First operand has 83 places, 97 transitions, 400 flow. Second operand 26 states and 532 transitions. [2024-11-17 07:54:59,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 307 transitions, 1645 flow [2024-11-17 07:54:59,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 307 transitions, 1589 flow, removed 7 selfloop flow, removed 6 redundant places. [2024-11-17 07:54:59,369 INFO L231 Difference]: Finished difference. Result has 110 places, 95 transitions, 460 flow [2024-11-17 07:54:59,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=460, PETRI_PLACES=110, PETRI_TRANSITIONS=95} [2024-11-17 07:54:59,370 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 34 predicate places. [2024-11-17 07:54:59,370 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 95 transitions, 460 flow [2024-11-17 07:54:59,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 16.066666666666666) internal successors, (241), 15 states have internal predecessors, (241), 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) [2024-11-17 07:54:59,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:59,370 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:59,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 07:54:59,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:59,571 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:54:59,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:59,571 INFO L85 PathProgramCache]: Analyzing trace with hash 320409078, now seen corresponding path program 2 times [2024-11-17 07:54:59,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:59,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638316925] [2024-11-17 07:54:59,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:59,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:59,723 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-17 07:54:59,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:59,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638316925] [2024-11-17 07:54:59,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638316925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:54:59,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111056927] [2024-11-17 07:54:59,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:54:59,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:59,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:59,725 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:54:59,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 07:54:59,830 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:54:59,830 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:54:59,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:54:59,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:54:59,882 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 07:54:59,882 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:54:59,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111056927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:59,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:54:59,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2024-11-17 07:54:59,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366426030] [2024-11-17 07:54:59,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:59,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:54:59,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:59,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:54:59,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:54:59,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2024-11-17 07:54:59,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 95 transitions, 460 flow. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:54:59,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:59,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2024-11-17 07:54:59,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:55:00,503 INFO L124 PetriNetUnfolderBase]: 6684/9712 cut-off events. [2024-11-17 07:55:00,503 INFO L125 PetriNetUnfolderBase]: For 6071/6071 co-relation queries the response was YES. [2024-11-17 07:55:00,520 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24825 conditions, 9712 events. 6684/9712 cut-off events. For 6071/6071 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 46243 event pairs, 3481 based on Foata normal form. 180/8315 useless extension candidates. Maximal degree in co-relation 24798. Up to 3653 conditions per place. [2024-11-17 07:55:00,541 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 125 selfloop transitions, 8 changer transitions 0/145 dead transitions. [2024-11-17 07:55:00,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 145 transitions, 892 flow [2024-11-17 07:55:00,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:55:00,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:55:00,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 174 transitions. [2024-11-17 07:55:00,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5240963855421686 [2024-11-17 07:55:00,542 INFO L175 Difference]: Start difference. First operand has 110 places, 95 transitions, 460 flow. Second operand 4 states and 174 transitions. [2024-11-17 07:55:00,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 145 transitions, 892 flow [2024-11-17 07:55:00,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 145 transitions, 861 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-17 07:55:00,550 INFO L231 Difference]: Finished difference. Result has 94 places, 101 transitions, 508 flow [2024-11-17 07:55:00,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=508, PETRI_PLACES=94, PETRI_TRANSITIONS=101} [2024-11-17 07:55:00,551 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 18 predicate places. [2024-11-17 07:55:00,551 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 101 transitions, 508 flow [2024-11-17 07:55:00,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:55:00,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:55:00,551 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:55:00,564 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 07:55:00,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:55:00,752 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2024-11-17 07:55:00,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:55:00,752 INFO L85 PathProgramCache]: Analyzing trace with hash -706245712, now seen corresponding path program 1 times [2024-11-17 07:55:00,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:55:00,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688549651] [2024-11-17 07:55:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:55:00,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:55:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:55:00,901 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-17 07:55:00,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:55:00,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688549651] [2024-11-17 07:55:00,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688549651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:55:00,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383595169] [2024-11-17 07:55:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:55:00,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:55:00,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:55:00,903 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:55:00,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 07:55:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:55:01,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:55:01,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:55:01,041 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 07:55:01,042 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:55:01,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383595169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:55:01,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:55:01,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-17 07:55:01,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173823938] [2024-11-17 07:55:01,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:55:01,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:55:01,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:55:01,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:55:01,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-17 07:55:01,043 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 83 [2024-11-17 07:55:01,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 101 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-17 07:55:01,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:55:01,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 83 [2024-11-17 07:55:01,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:55:01,472 INFO L124 PetriNetUnfolderBase]: 5265/7696 cut-off events. [2024-11-17 07:55:01,472 INFO L125 PetriNetUnfolderBase]: For 5895/5895 co-relation queries the response was YES. [2024-11-17 07:55:01,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20059 conditions, 7696 events. 5265/7696 cut-off events. For 5895/5895 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 35985 event pairs, 4517 based on Foata normal form. 252/6887 useless extension candidates. Maximal degree in co-relation 20035. Up to 7634 conditions per place. [2024-11-17 07:55:01,488 INFO L140 encePairwiseOnDemand]: 80/83 looper letters, 0 selfloop transitions, 0 changer transitions 99/99 dead transitions. [2024-11-17 07:55:01,488 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 99 transitions, 672 flow [2024-11-17 07:55:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:55:01,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:55:01,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-17 07:55:01,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41365461847389556 [2024-11-17 07:55:01,489 INFO L175 Difference]: Start difference. First operand has 94 places, 101 transitions, 508 flow. Second operand 3 states and 103 transitions. [2024-11-17 07:55:01,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 99 transitions, 672 flow [2024-11-17 07:55:01,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 99 transitions, 658 flow, removed 7 selfloop flow, removed 1 redundant places. [2024-11-17 07:55:01,494 INFO L231 Difference]: Finished difference. Result has 93 places, 0 transitions, 0 flow [2024-11-17 07:55:01,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=93, PETRI_TRANSITIONS=0} [2024-11-17 07:55:01,495 INFO L277 CegarLoopForPetriNet]: 76 programPoint places, 17 predicate places. [2024-11-17 07:55:01,495 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 0 transitions, 0 flow [2024-11-17 07:55:01,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-17 07:55:01,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 41 remaining) [2024-11-17 07:55:01,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining) [2024-11-17 07:55:01,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining) [2024-11-17 07:55:01,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining) [2024-11-17 07:55:01,497 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining) [2024-11-17 07:55:01,498 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining) [2024-11-17 07:55:01,498 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining) [2024-11-17 07:55:01,498 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining) [2024-11-17 07:55:01,498 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining) [2024-11-17 07:55:01,498 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining) [2024-11-17 07:55:01,498 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining) [2024-11-17 07:55:01,498 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining) [2024-11-17 07:55:01,498 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining) [2024-11-17 07:55:01,498 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining) [2024-11-17 07:55:01,498 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining) [2024-11-17 07:55:01,498 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining) [2024-11-17 07:55:01,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining) [2024-11-17 07:55:01,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining) [2024-11-17 07:55:01,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining) [2024-11-17 07:55:01,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining) [2024-11-17 07:55:01,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining) [2024-11-17 07:55:01,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining) [2024-11-17 07:55:01,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 41 remaining) [2024-11-17 07:55:01,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 41 remaining) [2024-11-17 07:55:01,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 41 remaining) [2024-11-17 07:55:01,499 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining) [2024-11-17 07:55:01,500 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining) [2024-11-17 07:55:01,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining) [2024-11-17 07:55:01,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining) [2024-11-17 07:55:01,501 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining) [2024-11-17 07:55:01,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-17 07:55:01,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-17 07:55:01,702 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:55:01,706 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:55:01,706 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:55:01,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:55:01 BasicIcfg [2024-11-17 07:55:01,710 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:55:01,710 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:55:01,710 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:55:01,710 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:55:01,710 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:54:46" (3/4) ... [2024-11-17 07:55:01,711 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:55:01,714 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 07:55:01,715 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 07:55:01,715 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-17 07:55:01,722 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 142 nodes and edges [2024-11-17 07:55:01,722 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2024-11-17 07:55:01,722 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2024-11-17 07:55:01,723 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-17 07:55:01,793 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:55:01,793 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:55:01,794 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:55:01,794 INFO L158 Benchmark]: Toolchain (without parser) took 16443.10ms. Allocated memory was 182.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 111.7MB in the beginning and 838.0MB in the end (delta: -726.3MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-17 07:55:01,794 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:55:01,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.13ms. Allocated memory is still 182.5MB. Free memory was 111.5MB in the beginning and 150.1MB in the end (delta: -38.7MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2024-11-17 07:55:01,795 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.22ms. Allocated memory is still 182.5MB. Free memory was 150.1MB in the beginning and 146.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:55:01,795 INFO L158 Benchmark]: Boogie Preprocessor took 47.99ms. Allocated memory is still 182.5MB. Free memory was 146.9MB in the beginning and 143.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:55:01,795 INFO L158 Benchmark]: IcfgBuilder took 906.46ms. Allocated memory is still 182.5MB. Free memory was 143.9MB in the beginning and 132.0MB in the end (delta: 11.9MB). Peak memory consumption was 102.9MB. Max. memory is 16.1GB. [2024-11-17 07:55:01,795 INFO L158 Benchmark]: TraceAbstraction took 15068.35ms. Allocated memory was 182.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 132.0MB in the beginning and 845.3MB in the end (delta: -713.4MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-17 07:55:01,796 INFO L158 Benchmark]: Witness Printer took 83.72ms. Allocated memory is still 2.2GB. Free memory was 845.3MB in the beginning and 838.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-17 07:55:01,796 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.13ms. Allocated memory is still 182.5MB. Free memory was 111.5MB in the beginning and 150.1MB in the end (delta: -38.7MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.22ms. Allocated memory is still 182.5MB. Free memory was 150.1MB in the beginning and 146.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.99ms. Allocated memory is still 182.5MB. Free memory was 146.9MB in the beginning and 143.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 906.46ms. Allocated memory is still 182.5MB. Free memory was 143.9MB in the beginning and 132.0MB in the end (delta: 11.9MB). Peak memory consumption was 102.9MB. Max. memory is 16.1GB. * TraceAbstraction took 15068.35ms. Allocated memory was 182.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 132.0MB in the beginning and 845.3MB in the end (delta: -713.4MB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 83.72ms. Allocated memory is still 2.2GB. Free memory was 845.3MB in the beginning and 838.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 67]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 73]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 91]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 109]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 158]: 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 7 procedures, 114 locations, 41 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: 14.9s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1025 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 953 mSDsluCounter, 311 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 295 mSDsCounter, 257 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2581 IncrementalHoareTripleChecker+Invalid, 2838 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 257 mSolverCounterUnsat, 16 mSDtfsCounter, 2581 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 271 SyntacticMatches, 2 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=569occurred in iteration=7, InterpolantAutomatonStates: 97, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 597 NumberOfCodeBlocks, 561 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 639 ConstructedInterpolants, 0 QuantifiedInterpolants, 2001 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1641 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 26 InterpolantComputations, 12 PerfectInterpolantSequences, 151/248 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 22 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:55:01,818 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