./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-more-min-le-max.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 dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:27:03,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:27:03,909 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:27:03,917 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:27:03,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:27:03,944 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:27:03,945 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:27:03,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:27:03,947 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:27:03,949 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:27:03,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:27:03,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:27:03,950 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:27:03,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:27:03,952 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:27:03,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:27:03,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:27:03,953 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:27:03,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:27:03,954 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:27:03,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:27:03,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:27:03,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:27:03,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:27:03,959 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:27:03,959 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:27:03,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:27:03,960 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:27:03,960 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:27:03,960 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:27:03,960 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:27:03,961 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:27:03,961 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:27:03,961 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:27:03,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:27:03,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:27:03,962 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:27:03,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:27:03,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:27:03,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:27:03,964 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:27:03,964 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:27:03,965 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:27:03,965 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:27:03,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af [2024-11-10 22:27:04,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:27:04,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:27:04,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:27:04,277 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:27:04,278 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:27:04,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-11-10 22:27:05,754 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:27:05,937 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:27:05,937 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-11-10 22:27:05,944 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a657bc27/bea2cb449c0e44368b9993f7380b318c/FLAG464f50340 [2024-11-10 22:27:06,319 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a657bc27/bea2cb449c0e44368b9993f7380b318c [2024-11-10 22:27:06,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:27:06,325 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:27:06,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:27:06,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:27:06,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:27:06,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,336 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eef0906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06, skipping insertion in model container [2024-11-10 22:27:06,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,362 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:27:06,615 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:27:06,627 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:27:06,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:27:06,676 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:27:06,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06 WrapperNode [2024-11-10 22:27:06,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:27:06,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:27:06,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:27:06,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:27:06,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,715 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 91 [2024-11-10 22:27:06,716 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:27:06,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:27:06,717 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:27:06,717 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:27:06,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,728 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,744 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-10 22:27:06,744 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,751 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,753 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,758 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:27:06,759 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:27:06,759 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:27:06,759 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:27:06,760 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (1/1) ... [2024-11-10 22:27:06,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:27:06,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:06,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 22:27:06,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 22:27:06,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:27:06,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 22:27:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 22:27:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 22:27:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 22:27:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 22:27:06,859 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 22:27:06,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:27:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:27:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:27:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:27:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 22:27:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 22:27:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:27:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:27:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:27:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:27:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:27:06,863 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:27:06,998 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:27:07,000 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:27:07,286 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:27:07,286 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:27:07,481 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:27:07,482 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:27:07,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:27:07 BoogieIcfgContainer [2024-11-10 22:27:07,482 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:27:07,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:27:07,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:27:07,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:27:07,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:27:06" (1/3) ... [2024-11-10 22:27:07,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301cbbf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:27:07, skipping insertion in model container [2024-11-10 22:27:07,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:06" (2/3) ... [2024-11-10 22:27:07,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@301cbbf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:27:07, skipping insertion in model container [2024-11-10 22:27:07,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:27:07" (3/3) ... [2024-11-10 22:27:07,491 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2024-11-10 22:27:07,506 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:27:07,507 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-10 22:27:07,507 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:27:07,574 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 22:27:07,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 50 transitions, 121 flow [2024-11-10 22:27:07,639 INFO L124 PetriNetUnfolderBase]: 6/47 cut-off events. [2024-11-10 22:27:07,639 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 22:27:07,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 47 events. 6/47 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 104 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2024-11-10 22:27:07,644 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 50 transitions, 121 flow [2024-11-10 22:27:07,646 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 44 transitions, 100 flow [2024-11-10 22:27:07,655 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:27:07,661 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;@2b55ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:27:07,662 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2024-11-10 22:27:07,666 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:27:07,666 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:27:07,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:27:07,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:07,667 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:27:07,667 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:07,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:07,673 INFO L85 PathProgramCache]: Analyzing trace with hash 11072050, now seen corresponding path program 1 times [2024-11-10 22:27:07,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:07,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226786341] [2024-11-10 22:27:07,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:07,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:07,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:07,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:07,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226786341] [2024-11-10 22:27:07,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226786341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:07,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:27:07,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:27:07,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556322659] [2024-11-10 22:27:07,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:07,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:27:07,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:08,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:27:08,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:27:08,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 50 [2024-11-10 22:27:08,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 100 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) [2024-11-10 22:27:08,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:08,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 50 [2024-11-10 22:27:08,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:08,247 INFO L124 PetriNetUnfolderBase]: 303/543 cut-off events. [2024-11-10 22:27:08,247 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-10 22:27:08,251 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1060 conditions, 543 events. 303/543 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2726 event pairs, 232 based on Foata normal form. 72/550 useless extension candidates. Maximal degree in co-relation 951. Up to 457 conditions per place. [2024-11-10 22:27:08,258 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 22 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2024-11-10 22:27:08,259 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 44 transitions, 152 flow [2024-11-10 22:27:08,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:27:08,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:27:08,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-11-10 22:27:08,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.58 [2024-11-10 22:27:08,274 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 100 flow. Second operand 4 states and 116 transitions. [2024-11-10 22:27:08,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 44 transitions, 152 flow [2024-11-10 22:27:08,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 146 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:27:08,280 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 117 flow [2024-11-10 22:27:08,282 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=117, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2024-11-10 22:27:08,286 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 1 predicate places. [2024-11-10 22:27:08,286 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 117 flow [2024-11-10 22:27:08,287 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) [2024-11-10 22:27:08,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:08,287 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:27:08,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:27:08,288 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:08,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:08,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1037903911, now seen corresponding path program 1 times [2024-11-10 22:27:08,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:08,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416863758] [2024-11-10 22:27:08,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:08,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:08,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:08,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:08,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416863758] [2024-11-10 22:27:08,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416863758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:08,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138521519] [2024-11-10 22:27:08,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:08,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:08,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:08,524 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) [2024-11-10 22:27:08,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:27:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:08,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:27:08,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:08,700 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:27:08,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138521519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:08,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:27:08,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:27:08,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636089135] [2024-11-10 22:27:08,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:08,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:27:08,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:08,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:27:08,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:27:08,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 50 [2024-11-10 22:27:08,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 117 flow. Second operand has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:08,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:08,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 50 [2024-11-10 22:27:08,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:08,933 INFO L124 PetriNetUnfolderBase]: 303/542 cut-off events. [2024-11-10 22:27:08,934 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-10 22:27:08,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1056 conditions, 542 events. 303/542 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2730 event pairs, 232 based on Foata normal form. 1/478 useless extension candidates. Maximal degree in co-relation 1027. Up to 452 conditions per place. [2024-11-10 22:27:08,941 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 18 selfloop transitions, 7 changer transitions 0/43 dead transitions. [2024-11-10 22:27:08,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 43 transitions, 163 flow [2024-11-10 22:27:08,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:27:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:27:08,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2024-11-10 22:27:08,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5066666666666667 [2024-11-10 22:27:08,948 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 117 flow. Second operand 6 states and 152 transitions. [2024-11-10 22:27:08,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 43 transitions, 163 flow [2024-11-10 22:27:08,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 43 transitions, 160 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:27:08,951 INFO L231 Difference]: Finished difference. Result has 52 places, 43 transitions, 124 flow [2024-11-10 22:27:08,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=52, PETRI_TRANSITIONS=43} [2024-11-10 22:27:08,953 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2024-11-10 22:27:08,953 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 43 transitions, 124 flow [2024-11-10 22:27:08,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.833333333333332) internal successors, (131), 6 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:08,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:08,954 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:27:08,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-10 22:27:09,158 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 [2024-11-10 22:27:09,162 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:09,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:09,163 INFO L85 PathProgramCache]: Analyzing trace with hash -2110249894, now seen corresponding path program 1 times [2024-11-10 22:27:09,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:09,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443285259] [2024-11-10 22:27:09,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:09,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:09,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:09,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:09,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:09,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443285259] [2024-11-10 22:27:09,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443285259] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:09,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351937233] [2024-11-10 22:27:09,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:09,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:09,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:09,295 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) [2024-11-10 22:27:09,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:27:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:09,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:27:09,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:09,406 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:09,406 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:27:09,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:09,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351937233] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:27:09,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:27:09,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-10 22:27:09,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885406178] [2024-11-10 22:27:09,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:27:09,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:27:09,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:09,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:27:09,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:27:09,494 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 50 [2024-11-10 22:27:09,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 43 transitions, 124 flow. Second operand has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:09,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:09,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 50 [2024-11-10 22:27:09,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:09,695 INFO L124 PetriNetUnfolderBase]: 306/560 cut-off events. [2024-11-10 22:27:09,695 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-10 22:27:09,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1106 conditions, 560 events. 306/560 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2871 event pairs, 232 based on Foata normal form. 3/499 useless extension candidates. Maximal degree in co-relation 1028. Up to 459 conditions per place. [2024-11-10 22:27:09,701 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 21 selfloop transitions, 13 changer transitions 0/52 dead transitions. [2024-11-10 22:27:09,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 52 transitions, 246 flow [2024-11-10 22:27:09,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:27:09,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:27:09,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 247 transitions. [2024-11-10 22:27:09,707 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.494 [2024-11-10 22:27:09,707 INFO L175 Difference]: Start difference. First operand has 52 places, 43 transitions, 124 flow. Second operand 10 states and 247 transitions. [2024-11-10 22:27:09,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 52 transitions, 246 flow [2024-11-10 22:27:09,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 52 transitions, 216 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-10 22:27:09,711 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 192 flow [2024-11-10 22:27:09,711 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=192, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2024-11-10 22:27:09,713 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 12 predicate places. [2024-11-10 22:27:09,713 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 192 flow [2024-11-10 22:27:09,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:09,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:09,714 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:09,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:27:09,914 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 [2024-11-10 22:27:09,915 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:09,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:09,916 INFO L85 PathProgramCache]: Analyzing trace with hash -2077573772, now seen corresponding path program 1 times [2024-11-10 22:27:09,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:09,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898229569] [2024-11-10 22:27:09,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:09,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:09,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:09,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:09,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898229569] [2024-11-10 22:27:09,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898229569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:09,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:27:09,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:27:09,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561315177] [2024-11-10 22:27:09,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:09,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:27:09,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:09,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:27:09,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:27:09,987 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-10 22:27:09,987 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 192 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) [2024-11-10 22:27:09,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:09,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-10 22:27:09,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:10,199 INFO L124 PetriNetUnfolderBase]: 760/1360 cut-off events. [2024-11-10 22:27:10,199 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2024-11-10 22:27:10,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2630 conditions, 1360 events. 760/1360 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7468 event pairs, 288 based on Foata normal form. 34/1247 useless extension candidates. Maximal degree in co-relation 2592. Up to 812 conditions per place. [2024-11-10 22:27:10,209 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 58 selfloop transitions, 4 changer transitions 0/78 dead transitions. [2024-11-10 22:27:10,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 78 transitions, 376 flow [2024-11-10 22:27:10,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:27:10,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:27:10,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-11-10 22:27:10,212 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66 [2024-11-10 22:27:10,212 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 192 flow. Second operand 4 states and 132 transitions. [2024-11-10 22:27:10,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 78 transitions, 376 flow [2024-11-10 22:27:10,215 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 365 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 22:27:10,216 INFO L231 Difference]: Finished difference. Result has 63 places, 55 transitions, 210 flow [2024-11-10 22:27:10,216 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2024-11-10 22:27:10,218 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-11-10 22:27:10,218 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 210 flow [2024-11-10 22:27:10,218 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) [2024-11-10 22:27:10,218 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:10,218 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:10,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:27:10,219 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:10,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:10,219 INFO L85 PathProgramCache]: Analyzing trace with hash -523024831, now seen corresponding path program 1 times [2024-11-10 22:27:10,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:10,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617375127] [2024-11-10 22:27:10,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:10,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:10,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:10,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:10,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617375127] [2024-11-10 22:27:10,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617375127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:10,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:27:10,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:27:10,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332458568] [2024-11-10 22:27:10,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:10,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:27:10,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:10,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:27:10,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:27:10,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-10 22:27:10,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:10,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:10,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-10 22:27:10,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:10,565 INFO L124 PetriNetUnfolderBase]: 1221/2109 cut-off events. [2024-11-10 22:27:10,566 INFO L125 PetriNetUnfolderBase]: For 655/884 co-relation queries the response was YES. [2024-11-10 22:27:10,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4624 conditions, 2109 events. 1221/2109 cut-off events. For 655/884 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 12423 event pairs, 653 based on Foata normal form. 128/2059 useless extension candidates. Maximal degree in co-relation 4584. Up to 1257 conditions per place. [2024-11-10 22:27:10,580 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 62 selfloop transitions, 4 changer transitions 0/83 dead transitions. [2024-11-10 22:27:10,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 83 transitions, 430 flow [2024-11-10 22:27:10,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:27:10,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:27:10,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2024-11-10 22:27:10,581 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-10 22:27:10,582 INFO L175 Difference]: Start difference. First operand has 63 places, 55 transitions, 210 flow. Second operand 4 states and 130 transitions. [2024-11-10 22:27:10,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 83 transitions, 430 flow [2024-11-10 22:27:10,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 83 transitions, 421 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:27:10,585 INFO L231 Difference]: Finished difference. Result has 67 places, 58 transitions, 236 flow [2024-11-10 22:27:10,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=236, PETRI_PLACES=67, PETRI_TRANSITIONS=58} [2024-11-10 22:27:10,586 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 19 predicate places. [2024-11-10 22:27:10,586 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 58 transitions, 236 flow [2024-11-10 22:27:10,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:10,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:10,587 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:10,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:27:10,587 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:10,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:10,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1976802733, now seen corresponding path program 1 times [2024-11-10 22:27:10,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:10,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884117899] [2024-11-10 22:27:10,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:10,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:10,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:10,662 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 22:27:10,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:10,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884117899] [2024-11-10 22:27:10,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884117899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:10,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:27:10,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:27:10,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35904199] [2024-11-10 22:27:10,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:10,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:27:10,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:10,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:27:10,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:27:10,683 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 50 [2024-11-10 22:27:10,684 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 58 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:10,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:10,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 50 [2024-11-10 22:27:10,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:10,854 INFO L124 PetriNetUnfolderBase]: 760/1297 cut-off events. [2024-11-10 22:27:10,854 INFO L125 PetriNetUnfolderBase]: For 663/876 co-relation queries the response was YES. [2024-11-10 22:27:10,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3193 conditions, 1297 events. 760/1297 cut-off events. For 663/876 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7095 event pairs, 554 based on Foata normal form. 75/1226 useless extension candidates. Maximal degree in co-relation 3156. Up to 1092 conditions per place. [2024-11-10 22:27:10,867 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 35 selfloop transitions, 2 changer transitions 1/58 dead transitions. [2024-11-10 22:27:10,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 58 transitions, 310 flow [2024-11-10 22:27:10,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:27:10,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:27:10,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 114 transitions. [2024-11-10 22:27:10,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.57 [2024-11-10 22:27:10,869 INFO L175 Difference]: Start difference. First operand has 67 places, 58 transitions, 236 flow. Second operand 4 states and 114 transitions. [2024-11-10 22:27:10,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 58 transitions, 310 flow [2024-11-10 22:27:10,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 58 transitions, 307 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:27:10,876 INFO L231 Difference]: Finished difference. Result has 70 places, 57 transitions, 237 flow [2024-11-10 22:27:10,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=237, PETRI_PLACES=70, PETRI_TRANSITIONS=57} [2024-11-10 22:27:10,877 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-10 22:27:10,877 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 57 transitions, 237 flow [2024-11-10 22:27:10,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:10,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:10,877 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-10 22:27:10,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:27:10,877 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:10,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:10,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1947203333, now seen corresponding path program 2 times [2024-11-10 22:27:10,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:10,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131216506] [2024-11-10 22:27:10,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:10,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:11,082 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:11,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:11,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131216506] [2024-11-10 22:27:11,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131216506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:11,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877905809] [2024-11-10 22:27:11,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:27:11,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:11,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:11,085 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) [2024-11-10 22:27:11,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:27:11,156 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:27:11,157 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:27:11,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:27:11,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:11,234 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:27:11,234 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:27:11,283 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:27:11,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877905809] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:27:11,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:27:11,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-10 22:27:11,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585228348] [2024-11-10 22:27:11,284 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:27:11,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 22:27:11,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:11,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 22:27:11,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-10 22:27:11,309 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-10 22:27:11,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 57 transitions, 237 flow. Second operand has 14 states, 14 states have (on average 21.142857142857142) internal successors, (296), 14 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:11,310 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:11,310 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-10 22:27:11,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:11,632 INFO L124 PetriNetUnfolderBase]: 761/1301 cut-off events. [2024-11-10 22:27:11,633 INFO L125 PetriNetUnfolderBase]: For 598/811 co-relation queries the response was YES. [2024-11-10 22:27:11,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3109 conditions, 1301 events. 761/1301 cut-off events. For 598/811 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 7139 event pairs, 554 based on Foata normal form. 76/1231 useless extension candidates. Maximal degree in co-relation 3080. Up to 1080 conditions per place. [2024-11-10 22:27:11,643 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 26 selfloop transitions, 18 changer transitions 0/63 dead transitions. [2024-11-10 22:27:11,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 63 transitions, 350 flow [2024-11-10 22:27:11,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 22:27:11,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 22:27:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 322 transitions. [2024-11-10 22:27:11,645 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46 [2024-11-10 22:27:11,645 INFO L175 Difference]: Start difference. First operand has 70 places, 57 transitions, 237 flow. Second operand 14 states and 322 transitions. [2024-11-10 22:27:11,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 63 transitions, 350 flow [2024-11-10 22:27:11,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 63 transitions, 334 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-10 22:27:11,650 INFO L231 Difference]: Finished difference. Result has 75 places, 59 transitions, 266 flow [2024-11-10 22:27:11,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=266, PETRI_PLACES=75, PETRI_TRANSITIONS=59} [2024-11-10 22:27:11,651 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2024-11-10 22:27:11,653 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 59 transitions, 266 flow [2024-11-10 22:27:11,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 21.142857142857142) internal successors, (296), 14 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:11,654 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:11,654 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:11,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 22:27:11,854 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 [2024-11-10 22:27:11,855 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:11,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:11,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1577344870, now seen corresponding path program 1 times [2024-11-10 22:27:11,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:11,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775322893] [2024-11-10 22:27:11,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:11,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:11,927 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:27:11,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:11,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775322893] [2024-11-10 22:27:11,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775322893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:11,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17297107] [2024-11-10 22:27:11,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:11,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:11,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:11,930 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) [2024-11-10 22:27:11,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:27:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:11,998 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 22:27:11,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:12,152 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:27:12,309 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:12,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17297107] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:27:12,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:27:12,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-10 22:27:12,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679484328] [2024-11-10 22:27:12,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:27:12,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 22:27:12,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:12,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 22:27:12,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-10 22:27:12,521 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-10 22:27:12,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 59 transitions, 266 flow. Second operand has 19 states, 19 states have (on average 17.105263157894736) internal successors, (325), 19 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:12,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:12,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-10 22:27:12,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:13,609 INFO L124 PetriNetUnfolderBase]: 2474/4134 cut-off events. [2024-11-10 22:27:13,610 INFO L125 PetriNetUnfolderBase]: For 1412/1803 co-relation queries the response was YES. [2024-11-10 22:27:13,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9731 conditions, 4134 events. 2474/4134 cut-off events. For 1412/1803 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 26220 event pairs, 399 based on Foata normal form. 188/4019 useless extension candidates. Maximal degree in co-relation 5621. Up to 536 conditions per place. [2024-11-10 22:27:13,639 INFO L140 encePairwiseOnDemand]: 38/50 looper letters, 149 selfloop transitions, 28 changer transitions 12/202 dead transitions. [2024-11-10 22:27:13,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 202 transitions, 1082 flow [2024-11-10 22:27:13,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 22:27:13,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-10 22:27:13,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 415 transitions. [2024-11-10 22:27:13,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48823529411764705 [2024-11-10 22:27:13,642 INFO L175 Difference]: Start difference. First operand has 75 places, 59 transitions, 266 flow. Second operand 17 states and 415 transitions. [2024-11-10 22:27:13,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 202 transitions, 1082 flow [2024-11-10 22:27:13,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 202 transitions, 1014 flow, removed 6 selfloop flow, removed 12 redundant places. [2024-11-10 22:27:13,651 INFO L231 Difference]: Finished difference. Result has 80 places, 66 transitions, 289 flow [2024-11-10 22:27:13,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=289, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2024-11-10 22:27:13,652 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2024-11-10 22:27:13,652 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 66 transitions, 289 flow [2024-11-10 22:27:13,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.105263157894736) internal successors, (325), 19 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:13,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:13,653 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:13,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 22:27:13,857 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 [2024-11-10 22:27:13,858 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:13,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:13,859 INFO L85 PathProgramCache]: Analyzing trace with hash 344175795, now seen corresponding path program 1 times [2024-11-10 22:27:13,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:13,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813400509] [2024-11-10 22:27:13,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:13,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:13,941 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:27:13,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:13,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813400509] [2024-11-10 22:27:13,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813400509] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:13,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813264658] [2024-11-10 22:27:13,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:13,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:13,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:13,944 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) [2024-11-10 22:27:13,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 22:27:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:14,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 22:27:14,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:14,146 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:27:14,301 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:14,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813264658] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:27:14,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:27:14,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-10 22:27:14,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074227948] [2024-11-10 22:27:14,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:27:14,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 22:27:14,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:14,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 22:27:14,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-10 22:27:14,497 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-10 22:27:14,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 66 transitions, 289 flow. Second operand has 19 states, 19 states have (on average 17.31578947368421) internal successors, (329), 19 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:14,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:14,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-10 22:27:14,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:15,515 INFO L124 PetriNetUnfolderBase]: 2629/4399 cut-off events. [2024-11-10 22:27:15,516 INFO L125 PetriNetUnfolderBase]: For 3522/3687 co-relation queries the response was YES. [2024-11-10 22:27:15,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11342 conditions, 4399 events. 2629/4399 cut-off events. For 3522/3687 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 28607 event pairs, 407 based on Foata normal form. 62/4186 useless extension candidates. Maximal degree in co-relation 7611. Up to 635 conditions per place. [2024-11-10 22:27:15,540 INFO L140 encePairwiseOnDemand]: 38/50 looper letters, 101 selfloop transitions, 21 changer transitions 64/199 dead transitions. [2024-11-10 22:27:15,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 199 transitions, 1170 flow [2024-11-10 22:27:15,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 22:27:15,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-10 22:27:15,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 406 transitions. [2024-11-10 22:27:15,543 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4776470588235294 [2024-11-10 22:27:15,543 INFO L175 Difference]: Start difference. First operand has 80 places, 66 transitions, 289 flow. Second operand 17 states and 406 transitions. [2024-11-10 22:27:15,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 199 transitions, 1170 flow [2024-11-10 22:27:15,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 199 transitions, 1061 flow, removed 15 selfloop flow, removed 6 redundant places. [2024-11-10 22:27:15,553 INFO L231 Difference]: Finished difference. Result has 90 places, 58 transitions, 259 flow [2024-11-10 22:27:15,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=259, PETRI_PLACES=90, PETRI_TRANSITIONS=58} [2024-11-10 22:27:15,555 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 42 predicate places. [2024-11-10 22:27:15,555 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 58 transitions, 259 flow [2024-11-10 22:27:15,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.31578947368421) internal successors, (329), 19 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:15,556 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:15,556 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:15,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 22:27:15,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:15,757 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:15,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:15,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1420298102, now seen corresponding path program 1 times [2024-11-10 22:27:15,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:15,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686037937] [2024-11-10 22:27:15,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:15,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:15,824 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:27:15,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:15,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686037937] [2024-11-10 22:27:15,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686037937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:15,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967763315] [2024-11-10 22:27:15,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:15,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:15,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:15,827 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) [2024-11-10 22:27:15,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 22:27:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:15,901 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:27:15,902 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:15,932 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:27:15,933 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:27:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:27:15,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967763315] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:27:15,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:27:15,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 22:27:15,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193663179] [2024-11-10 22:27:15,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:27:15,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:27:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:15,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:27:15,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:27:16,025 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-10 22:27:16,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 58 transitions, 259 flow. Second operand has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 12 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:16,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:16,026 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-10 22:27:16,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:16,660 INFO L124 PetriNetUnfolderBase]: 2548/4855 cut-off events. [2024-11-10 22:27:16,661 INFO L125 PetriNetUnfolderBase]: For 3825/3946 co-relation queries the response was YES. [2024-11-10 22:27:16,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12339 conditions, 4855 events. 2548/4855 cut-off events. For 3825/3946 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 33365 event pairs, 798 based on Foata normal form. 174/4906 useless extension candidates. Maximal degree in co-relation 12239. Up to 1558 conditions per place. [2024-11-10 22:27:16,702 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 145 selfloop transitions, 13 changer transitions 0/175 dead transitions. [2024-11-10 22:27:16,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 175 transitions, 1025 flow [2024-11-10 22:27:16,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:27:16,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:27:16,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 330 transitions. [2024-11-10 22:27:16,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66 [2024-11-10 22:27:16,704 INFO L175 Difference]: Start difference. First operand has 90 places, 58 transitions, 259 flow. Second operand 10 states and 330 transitions. [2024-11-10 22:27:16,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 175 transitions, 1025 flow [2024-11-10 22:27:16,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 175 transitions, 867 flow, removed 12 selfloop flow, removed 14 redundant places. [2024-11-10 22:27:16,713 INFO L231 Difference]: Finished difference. Result has 80 places, 67 transitions, 275 flow [2024-11-10 22:27:16,714 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=275, PETRI_PLACES=80, PETRI_TRANSITIONS=67} [2024-11-10 22:27:16,715 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 32 predicate places. [2024-11-10 22:27:16,715 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 67 transitions, 275 flow [2024-11-10 22:27:16,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 21.916666666666668) internal successors, (263), 12 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:16,716 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:16,716 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:16,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 22:27:16,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:16,917 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:16,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:16,917 INFO L85 PathProgramCache]: Analyzing trace with hash -766480599, now seen corresponding path program 1 times [2024-11-10 22:27:16,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:16,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168034522] [2024-11-10 22:27:16,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:16,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:16,995 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:27:16,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:16,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168034522] [2024-11-10 22:27:16,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168034522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:16,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390284602] [2024-11-10 22:27:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:16,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:16,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:16,998 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) [2024-11-10 22:27:16,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 22:27:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:17,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:27:17,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:17,107 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:27:17,107 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:27:17,163 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-10 22:27:17,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390284602] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:27:17,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:27:17,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 22:27:17,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227339220] [2024-11-10 22:27:17,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:27:17,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:27:17,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:17,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:27:17,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:27:17,193 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 50 [2024-11-10 22:27:17,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 67 transitions, 275 flow. Second operand has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:17,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:17,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 50 [2024-11-10 22:27:17,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:18,301 INFO L124 PetriNetUnfolderBase]: 5212/9267 cut-off events. [2024-11-10 22:27:18,302 INFO L125 PetriNetUnfolderBase]: For 7528/7828 co-relation queries the response was YES. [2024-11-10 22:27:18,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23160 conditions, 9267 events. 5212/9267 cut-off events. For 7528/7828 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 65284 event pairs, 1280 based on Foata normal form. 330/9398 useless extension candidates. Maximal degree in co-relation 23079. Up to 2962 conditions per place. [2024-11-10 22:27:18,355 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 191 selfloop transitions, 13 changer transitions 0/224 dead transitions. [2024-11-10 22:27:18,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 224 transitions, 1407 flow [2024-11-10 22:27:18,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:27:18,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:27:18,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 322 transitions. [2024-11-10 22:27:18,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.644 [2024-11-10 22:27:18,357 INFO L175 Difference]: Start difference. First operand has 80 places, 67 transitions, 275 flow. Second operand 10 states and 322 transitions. [2024-11-10 22:27:18,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 224 transitions, 1407 flow [2024-11-10 22:27:18,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 224 transitions, 1324 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-10 22:27:18,366 INFO L231 Difference]: Finished difference. Result has 90 places, 76 transitions, 344 flow [2024-11-10 22:27:18,366 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=344, PETRI_PLACES=90, PETRI_TRANSITIONS=76} [2024-11-10 22:27:18,367 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 42 predicate places. [2024-11-10 22:27:18,367 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 76 transitions, 344 flow [2024-11-10 22:27:18,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.083333333333332) internal successors, (265), 12 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:18,367 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:18,368 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:18,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-10 22:27:18,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:18,569 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:18,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:18,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1350499903, now seen corresponding path program 2 times [2024-11-10 22:27:18,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:18,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294320651] [2024-11-10 22:27:18,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:18,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:18,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:18,779 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-10 22:27:18,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:18,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294320651] [2024-11-10 22:27:18,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294320651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:18,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29927953] [2024-11-10 22:27:18,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:27:18,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:18,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:18,782 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) [2024-11-10 22:27:18,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 22:27:18,849 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:27:18,849 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:27:18,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:27:18,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:18,926 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-10 22:27:18,927 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:27:18,992 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-10 22:27:18,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29927953] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:27:18,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:27:18,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-11-10 22:27:18,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720476442] [2024-11-10 22:27:18,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:27:18,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 22:27:18,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:18,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 22:27:18,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-10 22:27:19,093 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-10 22:27:19,093 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 76 transitions, 344 flow. Second operand has 13 states, 13 states have (on average 17.46153846153846) internal successors, (227), 13 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:19,094 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:19,094 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-10 22:27:19,094 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:21,338 INFO L124 PetriNetUnfolderBase]: 14307/23492 cut-off events. [2024-11-10 22:27:21,338 INFO L125 PetriNetUnfolderBase]: For 26708/27612 co-relation queries the response was YES. [2024-11-10 22:27:21,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63791 conditions, 23492 events. 14307/23492 cut-off events. For 26708/27612 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 175931 event pairs, 3603 based on Foata normal form. 212/23246 useless extension candidates. Maximal degree in co-relation 50406. Up to 4342 conditions per place. [2024-11-10 22:27:21,493 INFO L140 encePairwiseOnDemand]: 38/50 looper letters, 154 selfloop transitions, 39 changer transitions 45/254 dead transitions. [2024-11-10 22:27:21,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 254 transitions, 1634 flow [2024-11-10 22:27:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 22:27:21,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-10 22:27:21,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 398 transitions. [2024-11-10 22:27:21,498 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4682352941176471 [2024-11-10 22:27:21,498 INFO L175 Difference]: Start difference. First operand has 90 places, 76 transitions, 344 flow. Second operand 17 states and 398 transitions. [2024-11-10 22:27:21,498 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 254 transitions, 1634 flow [2024-11-10 22:27:21,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 254 transitions, 1531 flow, removed 29 selfloop flow, removed 6 redundant places. [2024-11-10 22:27:21,587 INFO L231 Difference]: Finished difference. Result has 103 places, 89 transitions, 499 flow [2024-11-10 22:27:21,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=499, PETRI_PLACES=103, PETRI_TRANSITIONS=89} [2024-11-10 22:27:21,588 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 55 predicate places. [2024-11-10 22:27:21,589 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 89 transitions, 499 flow [2024-11-10 22:27:21,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.46153846153846) internal successors, (227), 13 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:21,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:21,590 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:21,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-10 22:27:21,790 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,SelfDestructingSolverStorable11 [2024-11-10 22:27:21,791 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2024-11-10 22:27:21,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:21,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1476183906, now seen corresponding path program 2 times [2024-11-10 22:27:21,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:21,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988301167] [2024-11-10 22:27:21,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:21,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:21,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:22,024 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-10 22:27:22,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:22,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988301167] [2024-11-10 22:27:22,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988301167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:22,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [725835128] [2024-11-10 22:27:22,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:27:22,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:22,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:22,028 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:27:22,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 22:27:22,100 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:27:22,100 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:27:22,101 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:27:22,102 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:22,187 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-10 22:27:22,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:27:22,262 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-10 22:27:22,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [725835128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:27:22,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:27:22,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 11 [2024-11-10 22:27:22,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532957314] [2024-11-10 22:27:22,263 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:27:22,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 22:27:22,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:22,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 22:27:22,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-10 22:27:22,371 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 50 [2024-11-10 22:27:22,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 89 transitions, 499 flow. Second operand has 13 states, 13 states have (on average 17.76923076923077) internal successors, (231), 13 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:22,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:22,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 50 [2024-11-10 22:27:22,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:24,475 INFO L124 PetriNetUnfolderBase]: 13326/21219 cut-off events. [2024-11-10 22:27:24,475 INFO L125 PetriNetUnfolderBase]: For 37452/38688 co-relation queries the response was YES. [2024-11-10 22:27:24,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60187 conditions, 21219 events. 13326/21219 cut-off events. For 37452/38688 co-relation queries the response was YES. Maximal size of possible extension queue 539. Compared 155348 event pairs, 2326 based on Foata normal form. 841/21979 useless extension candidates. Maximal degree in co-relation 44930. Up to 4731 conditions per place. [2024-11-10 22:27:24,539 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 0 selfloop transitions, 0 changer transitions 255/255 dead transitions. [2024-11-10 22:27:24,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 255 transitions, 1852 flow [2024-11-10 22:27:24,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-10 22:27:24,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-10 22:27:24,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 387 transitions. [2024-11-10 22:27:24,541 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45529411764705885 [2024-11-10 22:27:24,541 INFO L175 Difference]: Start difference. First operand has 103 places, 89 transitions, 499 flow. Second operand 17 states and 387 transitions. [2024-11-10 22:27:24,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 255 transitions, 1852 flow [2024-11-10 22:27:24,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 255 transitions, 1819 flow, removed 4 selfloop flow, removed 9 redundant places. [2024-11-10 22:27:24,643 INFO L231 Difference]: Finished difference. Result has 107 places, 0 transitions, 0 flow [2024-11-10 22:27:24,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=0, PETRI_PLACES=107, PETRI_TRANSITIONS=0} [2024-11-10 22:27:24,644 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 59 predicate places. [2024-11-10 22:27:24,644 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 0 transitions, 0 flow [2024-11-10 22:27:24,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.76923076923077) internal successors, (231), 13 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:27:24,648 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2024-11-10 22:27:24,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2024-11-10 22:27:24,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2024-11-10 22:27:24,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2024-11-10 22:27:24,649 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2024-11-10 22:27:24,650 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2024-11-10 22:27:24,650 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2024-11-10 22:27:24,650 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2024-11-10 22:27:24,650 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2024-11-10 22:27:24,651 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2024-11-10 22:27:24,651 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2024-11-10 22:27:24,651 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2024-11-10 22:27:24,651 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2024-11-10 22:27:24,675 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-10 22:27:24,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-10 22:27:24,856 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:24,861 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:27:24,861 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:27:24,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:27:24 BasicIcfg [2024-11-10 22:27:24,866 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:27:24,866 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:27:24,866 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:27:24,866 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:27:24,867 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:27:07" (3/4) ... [2024-11-10 22:27:24,868 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:27:24,871 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-10 22:27:24,872 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-10 22:27:24,872 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-10 22:27:24,878 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 75 nodes and edges [2024-11-10 22:27:24,879 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-10 22:27:24,879 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-10 22:27:24,879 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-10 22:27:24,958 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:27:24,959 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:27:24,959 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:27:24,959 INFO L158 Benchmark]: Toolchain (without parser) took 18634.68ms. Allocated memory was 167.8MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 113.8MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 510.1MB. Max. memory is 16.1GB. [2024-11-10 22:27:24,960 INFO L158 Benchmark]: CDTParser took 1.07ms. Allocated memory is still 167.8MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:27:24,960 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.90ms. Allocated memory is still 167.8MB. Free memory was 113.3MB in the beginning and 100.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 22:27:24,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.05ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 98.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:27:24,963 INFO L158 Benchmark]: Boogie Preprocessor took 41.36ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 96.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:27:24,964 INFO L158 Benchmark]: IcfgBuilder took 723.62ms. Allocated memory is still 167.8MB. Free memory was 96.1MB in the beginning and 119.8MB in the end (delta: -23.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-11-10 22:27:24,964 INFO L158 Benchmark]: TraceAbstraction took 17381.30ms. Allocated memory was 167.8MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 118.6MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 633.4MB. Max. memory is 16.1GB. [2024-11-10 22:27:24,964 INFO L158 Benchmark]: Witness Printer took 92.97ms. Allocated memory is still 2.2GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:27:24,966 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07ms. Allocated memory is still 167.8MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.90ms. Allocated memory is still 167.8MB. Free memory was 113.3MB in the beginning and 100.2MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.05ms. Allocated memory is still 167.8MB. Free memory was 100.2MB in the beginning and 98.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.36ms. Allocated memory is still 167.8MB. Free memory was 98.2MB in the beginning and 96.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 723.62ms. Allocated memory is still 167.8MB. Free memory was 96.1MB in the beginning and 119.8MB in the end (delta: -23.7MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * TraceAbstraction took 17381.30ms. Allocated memory was 167.8MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 118.6MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 633.4MB. Max. memory is 16.1GB. * Witness Printer took 92.97ms. Allocated memory is still 2.2GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: 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, 74 locations, 13 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: 17.3s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 11.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1491 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1385 mSDsluCounter, 1093 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1081 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5818 IncrementalHoareTripleChecker+Invalid, 5875 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 12 mSDtfsCounter, 5818 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 563 GetRequests, 373 SyntacticMatches, 7 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 628 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=499occurred in iteration=12, InterpolantAutomatonStates: 134, 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, 2.8s InterpolantComputationTime, 497 NumberOfCodeBlocks, 417 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 685 ConstructedInterpolants, 0 QuantifiedInterpolants, 2061 SizeOfPredicates, 33 NumberOfNonLiveVariables, 922 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 440/677 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 22:27:24,990 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