./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc 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/parallel-parallel-sum-equiv.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 2d41b1dc1d5d7eec1f1fd4e3cbbef0194aa2dded6486a15b383e9bb8fe1468a3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:05:05,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:05:06,013 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:05:06,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:05:06,020 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:05:06,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:05:06,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:05:06,050 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:05:06,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:05:06,052 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:05:06,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:05:06,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:05:06,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:05:06,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:05:06,054 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:05:06,056 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:05:06,056 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:05:06,057 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:05:06,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:05:06,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:05:06,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:05:06,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:05:06,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:05:06,062 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:05:06,062 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:05:06,062 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:05:06,062 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:05:06,063 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:05:06,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:05:06,063 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:05:06,063 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:05:06,063 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:05:06,063 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:05:06,064 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:05:06,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:05:06,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:05:06,064 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:05:06,064 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:05:06,065 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:05:06,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:05:06,065 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:05:06,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:05:06,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:05:06,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:05:06,067 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d41b1dc1d5d7eec1f1fd4e3cbbef0194aa2dded6486a15b383e9bb8fe1468a3 [2024-11-19 14:05:06,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:05:06,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:05:06,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:05:06,339 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:05:06,340 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:05:06,341 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2024-11-19 14:05:07,831 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:05:08,032 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:05:08,033 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2024-11-19 14:05:08,040 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c5281f85/d61261a28e084ff2b3ece7aaba4ec3a9/FLAG9db539ce2 [2024-11-19 14:05:08,417 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c5281f85/d61261a28e084ff2b3ece7aaba4ec3a9 [2024-11-19 14:05:08,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:05:08,421 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:05:08,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:05:08,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:05:08,429 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:05:08,430 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,431 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e23803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08, skipping insertion in model container [2024-11-19 14:05:08,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:05:08,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:05:08,783 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:05:08,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:05:08,827 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:05:08,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08 WrapperNode [2024-11-19 14:05:08,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:05:08,829 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:05:08,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:05:08,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:05:08,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,875 INFO L138 Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 305 [2024-11-19 14:05:08,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:05:08,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:05:08,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:05:08,876 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:05:08,888 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,914 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 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]. [2024-11-19 14:05:08,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,931 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,943 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:05:08,944 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:05:08,944 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:05:08,944 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:05:08,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (1/1) ... [2024-11-19 14:05:08,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:05:08,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:05:08,988 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) [2024-11-19 14:05:08,990 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 [2024-11-19 14:05:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:05:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:05:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:05:09,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:05:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:05:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:05:09,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:05:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:05:09,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:05:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:05:09,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:05:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-19 14:05:09,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-19 14:05:09,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:05:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:05:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 14:05:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 14:05:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:05:09,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:05:09,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:05:09,044 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:05:09,147 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:05:09,149 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:05:09,609 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:05:09,609 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:05:10,057 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:05:10,057 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 14:05:10,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:05:10 BoogieIcfgContainer [2024-11-19 14:05:10,057 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:05:10,059 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:05:10,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:05:10,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:05:10,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:05:08" (1/3) ... [2024-11-19 14:05:10,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27db99be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:05:10, skipping insertion in model container [2024-11-19 14:05:10,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:08" (2/3) ... [2024-11-19 14:05:10,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27db99be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:05:10, skipping insertion in model container [2024-11-19 14:05:10,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:05:10" (3/3) ... [2024-11-19 14:05:10,068 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2024-11-19 14:05:10,085 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:05:10,086 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-19 14:05:10,086 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:05:10,252 INFO L143 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2024-11-19 14:05:10,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 218 flow [2024-11-19 14:05:10,346 INFO L124 PetriNetUnfolderBase]: 9/82 cut-off events. [2024-11-19 14:05:10,346 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-19 14:05:10,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 82 events. 9/82 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 238 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 77. Up to 3 conditions per place. [2024-11-19 14:05:10,353 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 218 flow [2024-11-19 14:05:10,357 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 80 transitions, 187 flow [2024-11-19 14:05:10,366 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:05:10,373 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;@7148ff27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:05:10,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-19 14:05:10,375 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:05:10,376 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-19 14:05:10,376 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:05:10,376 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:10,377 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-19 14:05:10,377 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-19 14:05:10,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:10,383 INFO L85 PathProgramCache]: Analyzing trace with hash 33422, now seen corresponding path program 1 times [2024-11-19 14:05:10,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:10,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804149883] [2024-11-19 14:05:10,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:10,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:10,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:10,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:10,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:10,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804149883] [2024-11-19 14:05:10,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804149883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:10,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:10,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:05:10,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418373199] [2024-11-19 14:05:10,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:10,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:10,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:10,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:10,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:10,637 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-19 14:05:10,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 80 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-19 14:05:10,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:10,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-19 14:05:10,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:16,236 INFO L124 PetriNetUnfolderBase]: 38646/51872 cut-off events. [2024-11-19 14:05:16,236 INFO L125 PetriNetUnfolderBase]: For 1933/1933 co-relation queries the response was YES. [2024-11-19 14:05:16,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106411 conditions, 51872 events. 38646/51872 cut-off events. For 1933/1933 co-relation queries the response was YES. Maximal size of possible extension queue 1965. Compared 299551 event pairs, 35544 based on Foata normal form. 1/32860 useless extension candidates. Maximal degree in co-relation 106315. Up to 51843 conditions per place. [2024-11-19 14:05:16,606 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 62 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2024-11-19 14:05:16,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 70 transitions, 293 flow [2024-11-19 14:05:16,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:05:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:05:16,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-19 14:05:16,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3882783882783883 [2024-11-19 14:05:16,619 INFO L175 Difference]: Start difference. First operand has 84 places, 80 transitions, 187 flow. Second operand 3 states and 106 transitions. [2024-11-19 14:05:16,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 70 transitions, 293 flow [2024-11-19 14:05:16,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 70 transitions, 276 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-19 14:05:16,643 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 152 flow [2024-11-19 14:05:16,647 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2024-11-19 14:05:16,652 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -12 predicate places. [2024-11-19 14:05:16,653 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 152 flow [2024-11-19 14:05:16,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-19 14:05:16,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:16,654 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 14:05:16,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:05:16,654 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-19 14:05:16,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:16,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1037105, now seen corresponding path program 1 times [2024-11-19 14:05:16,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:16,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465264212] [2024-11-19 14:05:16,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:16,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:16,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:16,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:16,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465264212] [2024-11-19 14:05:16,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465264212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:16,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:16,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 14:05:16,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719685781] [2024-11-19 14:05:16,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:16,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:16,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:16,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:16,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:16,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-19 14:05:16,701 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-19 14:05:16,701 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:16,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-19 14:05:16,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:20,255 INFO L124 PetriNetUnfolderBase]: 31318/42066 cut-off events. [2024-11-19 14:05:20,256 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2024-11-19 14:05:20,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85260 conditions, 42066 events. 31318/42066 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 1492. Compared 236305 event pairs, 28618 based on Foata normal form. 0/27827 useless extension candidates. Maximal degree in co-relation 85254. Up to 42037 conditions per place. [2024-11-19 14:05:20,492 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 58 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2024-11-19 14:05:20,492 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 66 transitions, 262 flow [2024-11-19 14:05:20,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:05:20,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:05:20,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-11-19 14:05:20,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3516483516483517 [2024-11-19 14:05:20,494 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 152 flow. Second operand 3 states and 96 transitions. [2024-11-19 14:05:20,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 66 transitions, 262 flow [2024-11-19 14:05:20,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:05:20,499 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 145 flow [2024-11-19 14:05:20,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2024-11-19 14:05:20,500 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -15 predicate places. [2024-11-19 14:05:20,501 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 145 flow [2024-11-19 14:05:20,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-19 14:05:20,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:20,502 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 14:05:20,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 14:05:20,503 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-19 14:05:20,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:20,505 INFO L85 PathProgramCache]: Analyzing trace with hash 996691151, now seen corresponding path program 1 times [2024-11-19 14:05:20,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:20,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732808261] [2024-11-19 14:05:20,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:20,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:20,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:20,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732808261] [2024-11-19 14:05:20,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732808261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:20,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:20,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:05:20,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216635299] [2024-11-19 14:05:20,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:20,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:05:20,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:20,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:05:20,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:05:20,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-19 14:05:20,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:20,684 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:20,684 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-19 14:05:20,684 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:23,590 INFO L124 PetriNetUnfolderBase]: 31319/42070 cut-off events. [2024-11-19 14:05:23,590 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2024-11-19 14:05:23,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85270 conditions, 42070 events. 31319/42070 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 1492. Compared 236357 event pairs, 28618 based on Foata normal form. 1/27831 useless extension candidates. Maximal degree in co-relation 85263. Up to 42041 conditions per place. [2024-11-19 14:05:23,778 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 60 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2024-11-19 14:05:23,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 69 transitions, 279 flow [2024-11-19 14:05:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:05:23,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:05:23,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-11-19 14:05:23,783 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3021978021978022 [2024-11-19 14:05:23,784 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 145 flow. Second operand 4 states and 110 transitions. [2024-11-19 14:05:23,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 69 transitions, 279 flow [2024-11-19 14:05:23,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 69 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:05:23,787 INFO L231 Difference]: Finished difference. Result has 73 places, 69 transitions, 173 flow [2024-11-19 14:05:23,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=73, PETRI_TRANSITIONS=69} [2024-11-19 14:05:23,789 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2024-11-19 14:05:23,789 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 173 flow [2024-11-19 14:05:23,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:23,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:23,790 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:23,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:05:23,790 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-19 14:05:23,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:23,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1318222748, now seen corresponding path program 1 times [2024-11-19 14:05:23,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:23,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164719236] [2024-11-19 14:05:23,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:23,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:23,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:23,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:23,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164719236] [2024-11-19 14:05:23,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164719236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:05:23,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403337102] [2024-11-19 14:05:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:23,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:05:23,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:05:23,909 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) [2024-11-19 14:05:23,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 14:05:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:24,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:05:24,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:05:24,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:24,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:05:24,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403337102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:24,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:05:24,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-19 14:05:24,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884253686] [2024-11-19 14:05:24,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:24,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:05:24,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:24,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:05:24,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:05:24,083 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-19 14:05:24,085 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-11-19 14:05:24,085 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:24,085 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-19 14:05:24,085 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:27,018 INFO L124 PetriNetUnfolderBase]: 31319/42069 cut-off events. [2024-11-19 14:05:27,018 INFO L125 PetriNetUnfolderBase]: For 257/257 co-relation queries the response was YES. [2024-11-19 14:05:27,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85281 conditions, 42069 events. 31319/42069 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 236457 event pairs, 28618 based on Foata normal form. 1/27831 useless extension candidates. Maximal degree in co-relation 85272. Up to 42036 conditions per place. [2024-11-19 14:05:27,227 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 56 selfloop transitions, 7 changer transitions 0/68 dead transitions. [2024-11-19 14:05:27,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 68 transitions, 295 flow [2024-11-19 14:05:27,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:05:27,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:05:27,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-11-19 14:05:27,229 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2024-11-19 14:05:27,229 INFO L175 Difference]: Start difference. First operand has 73 places, 69 transitions, 173 flow. Second operand 6 states and 130 transitions. [2024-11-19 14:05:27,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 68 transitions, 295 flow [2024-11-19 14:05:27,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 68 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:05:27,232 INFO L231 Difference]: Finished difference. Result has 76 places, 68 transitions, 180 flow [2024-11-19 14:05:27,232 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=76, PETRI_TRANSITIONS=68} [2024-11-19 14:05:27,232 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2024-11-19 14:05:27,233 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 68 transitions, 180 flow [2024-11-19 14:05:27,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-11-19 14:05:27,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:27,233 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-19 14:05:27,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 14:05:27,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:05:27,436 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-19 14:05:27,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:27,436 INFO L85 PathProgramCache]: Analyzing trace with hash -2084766703, now seen corresponding path program 1 times [2024-11-19 14:05:27,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:27,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358031365] [2024-11-19 14:05:27,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:27,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:27,531 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:27,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:27,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358031365] [2024-11-19 14:05:27,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358031365] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:05:27,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394422720] [2024-11-19 14:05:27,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:27,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:05:27,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:05:27,534 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) [2024-11-19 14:05:27,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 14:05:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:27,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:05:27,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:05:27,649 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:27,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:05:27,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:27,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394422720] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:05:27,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:05:27,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-19 14:05:27,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591764859] [2024-11-19 14:05:27,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:05:27,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 14:05:27,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:27,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 14:05:27,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-19 14:05:27,701 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-19 14:05:27,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 68 transitions, 180 flow. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-11-19 14:05:27,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:27,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-19 14:05:27,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:30,646 INFO L124 PetriNetUnfolderBase]: 31322/42081 cut-off events. [2024-11-19 14:05:30,647 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2024-11-19 14:05:30,708 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85325 conditions, 42081 events. 31322/42081 cut-off events. For 274/274 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 236513 event pairs, 28618 based on Foata normal form. 3/27843 useless extension candidates. Maximal degree in co-relation 85316. Up to 42043 conditions per place. [2024-11-19 14:05:30,815 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 59 selfloop transitions, 13 changer transitions 0/77 dead transitions. [2024-11-19 14:05:30,815 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 77 transitions, 378 flow [2024-11-19 14:05:30,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 14:05:30,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 14:05:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2024-11-19 14:05:30,817 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2032967032967033 [2024-11-19 14:05:30,817 INFO L175 Difference]: Start difference. First operand has 76 places, 68 transitions, 180 flow. Second operand 10 states and 185 transitions. [2024-11-19 14:05:30,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 77 transitions, 378 flow [2024-11-19 14:05:30,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 332 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-19 14:05:30,819 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 232 flow [2024-11-19 14:05:30,820 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=232, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2024-11-19 14:05:30,820 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -1 predicate places. [2024-11-19 14:05:30,821 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 232 flow [2024-11-19 14:05:30,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-11-19 14:05:30,821 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:30,821 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:30,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 14:05:31,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:05:31,022 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-19 14:05:31,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:31,022 INFO L85 PathProgramCache]: Analyzing trace with hash 353947523, now seen corresponding path program 1 times [2024-11-19 14:05:31,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:31,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700874918] [2024-11-19 14:05:31,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:31,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:31,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:31,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:31,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:31,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700874918] [2024-11-19 14:05:31,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700874918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:31,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:31,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:05:31,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000956644] [2024-11-19 14:05:31,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:31,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:31,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:31,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:31,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:31,088 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 91 [2024-11-19 14:05:31,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:31,089 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:31,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 91 [2024-11-19 14:05:31,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:35,607 INFO L124 PetriNetUnfolderBase]: 44938/60299 cut-off events. [2024-11-19 14:05:35,608 INFO L125 PetriNetUnfolderBase]: For 508/508 co-relation queries the response was YES. [2024-11-19 14:05:35,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121933 conditions, 60299 events. 44938/60299 cut-off events. For 508/508 co-relation queries the response was YES. Maximal size of possible extension queue 1938. Compared 353239 event pairs, 28644 based on Foata normal form. 0/41192 useless extension candidates. Maximal degree in co-relation 121922. Up to 42056 conditions per place. [2024-11-19 14:05:35,863 INFO L140 encePairwiseOnDemand]: 88/91 looper letters, 113 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2024-11-19 14:05:35,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 121 transitions, 557 flow [2024-11-19 14:05:35,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:05:35,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:05:35,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-11-19 14:05:35,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-19 14:05:35,864 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 232 flow. Second operand 3 states and 143 transitions. [2024-11-19 14:05:35,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 121 transitions, 557 flow [2024-11-19 14:05:35,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 121 transitions, 546 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-19 14:05:35,867 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 233 flow [2024-11-19 14:05:35,867 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=84, PETRI_TRANSITIONS=78} [2024-11-19 14:05:35,868 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2024-11-19 14:05:35,868 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 233 flow [2024-11-19 14:05:35,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:35,868 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:35,868 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:35,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 14:05:35,869 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-19 14:05:35,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:35,869 INFO L85 PathProgramCache]: Analyzing trace with hash -2098893595, now seen corresponding path program 1 times [2024-11-19 14:05:35,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:35,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974126229] [2024-11-19 14:05:35,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:35,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:35,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:35,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:35,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974126229] [2024-11-19 14:05:35,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974126229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:35,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:35,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:05:35,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753577205] [2024-11-19 14:05:35,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:35,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:35,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:35,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:35,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:35,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 91 [2024-11-19 14:05:35,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 78 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-19 14:05:35,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:35,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 91 [2024-11-19 14:05:35,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:05:40,537 INFO L124 PetriNetUnfolderBase]: 55353/74399 cut-off events. [2024-11-19 14:05:40,537 INFO L125 PetriNetUnfolderBase]: For 5187/5187 co-relation queries the response was YES. [2024-11-19 14:05:40,695 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155104 conditions, 74399 events. 55353/74399 cut-off events. For 5187/5187 co-relation queries the response was YES. Maximal size of possible extension queue 2369. Compared 444906 event pairs, 28908 based on Foata normal form. 0/52630 useless extension candidates. Maximal degree in co-relation 155091. Up to 60620 conditions per place. [2024-11-19 14:05:40,892 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 107 selfloop transitions, 3 changer transitions 0/116 dead transitions. [2024-11-19 14:05:40,892 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 116 transitions, 547 flow [2024-11-19 14:05:40,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:05:40,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:05:40,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-11-19 14:05:40,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5018315018315018 [2024-11-19 14:05:40,893 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 233 flow. Second operand 3 states and 137 transitions. [2024-11-19 14:05:40,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 116 transitions, 547 flow [2024-11-19 14:05:40,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 116 transitions, 543 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:05:40,914 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 252 flow [2024-11-19 14:05:40,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-11-19 14:05:40,915 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, 2 predicate places. [2024-11-19 14:05:40,915 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 252 flow [2024-11-19 14:05:40,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2024-11-19 14:05:40,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:40,915 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:40,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 14:05:40,916 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-19 14:05:40,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:40,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1912527504, now seen corresponding path program 1 times [2024-11-19 14:05:40,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:40,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252296760] [2024-11-19 14:05:40,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:40,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:40,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:40,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:40,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252296760] [2024-11-19 14:05:40,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252296760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:40,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:40,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 14:05:40,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441766780] [2024-11-19 14:05:40,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:40,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 14:05:40,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:40,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 14:05:40,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 14:05:41,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-19 14:05:41,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 252 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-19 14:05:41,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:41,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-19 14:05:41,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand