./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/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-mul-div-a046e57-m [2024-10-13 16:48:17,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:48:17,949 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:48:17,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:48:17,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:48:17,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:48:17,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:48:17,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:48:17,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:48:17,988 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:48:17,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:48:17,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:48:17,989 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:48:17,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:48:17,990 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:48:17,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:48:17,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:48:17,991 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:48:17,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:48:17,992 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:48:17,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:48:17,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:48:17,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:48:17,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:48:17,993 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:48:17,993 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:48:17,994 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:48:17,994 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:48:17,994 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:48:17,994 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:48:17,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:48:17,995 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:48:17,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:48:17,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:48:17,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:48:17,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:48:17,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:48:17,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:48:17,997 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:48:17,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:48:17,997 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:48:17,997 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:48:17,998 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:48:17,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:48:17,998 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d41b1dc1d5d7eec1f1fd4e3cbbef0194aa2dded6486a15b383e9bb8fe1468a3 [2024-10-13 16:48:18,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:48:18,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:48:18,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:48:18,225 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:48:18,225 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:48:18,226 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2024-10-13 16:48:19,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:48:19,700 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:48:19,701 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2024-10-13 16:48:19,707 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7354b8cc/554e1a264da0487ebda5c9576d72fc98/FLAGe29231bdb [2024-10-13 16:48:19,717 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7354b8cc/554e1a264da0487ebda5c9576d72fc98 [2024-10-13 16:48:19,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:48:19,720 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:48:19,721 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:48:19,721 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:48:19,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:48:19,726 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:19,727 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d17341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19, skipping insertion in model container [2024-10-13 16:48:19,727 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:19,750 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:48:19,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:48:19,913 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:48:19,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:48:19,951 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:48:19,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19 WrapperNode [2024-10-13 16:48:19,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:48:19,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:48:19,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:48:19,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:48:19,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:19,965 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:19,987 INFO L138 Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 305 [2024-10-13 16:48:19,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:48:19,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:48:19,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:48:19,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:48:20,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:20,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:20,005 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:20,020 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]. [2024-10-13 16:48:20,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:20,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:20,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:20,031 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:20,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:20,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:20,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:48:20,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:48:20,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:48:20,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:48:20,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (1/1) ... [2024-10-13 16:48:20,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:48:20,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:48:20,077 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) [2024-10-13 16:48:20,079 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 [2024-10-13 16:48:20,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:48:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 16:48:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 16:48:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 16:48:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 16:48:20,111 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 16:48:20,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 16:48:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 16:48:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 16:48:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-13 16:48:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-13 16:48:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-10-13 16:48:20,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-10-13 16:48:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:48:20,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 16:48:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 16:48:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 16:48:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 16:48:20,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:48:20,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:48:20,114 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:48:20,206 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:48:20,208 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:48:20,590 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:48:20,590 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:48:21,069 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:48:21,069 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-13 16:48:21,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:48:21 BoogieIcfgContainer [2024-10-13 16:48:21,070 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:48:21,072 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:48:21,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:48:21,075 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:48:21,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:48:19" (1/3) ... [2024-10-13 16:48:21,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1b1e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:48:21, skipping insertion in model container [2024-10-13 16:48:21,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:48:19" (2/3) ... [2024-10-13 16:48:21,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a1b1e34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:48:21, skipping insertion in model container [2024-10-13 16:48:21,076 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:48:21" (3/3) ... [2024-10-13 16:48:21,077 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2024-10-13 16:48:21,092 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:48:21,092 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-10-13 16:48:21,092 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:48:21,213 INFO L143 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2024-10-13 16:48:21,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 218 flow [2024-10-13 16:48:21,273 INFO L124 PetriNetUnfolderBase]: 9/82 cut-off events. [2024-10-13 16:48:21,273 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-13 16:48:21,277 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. [2024-10-13 16:48:21,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 218 flow [2024-10-13 16:48:21,280 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 80 transitions, 187 flow [2024-10-13 16:48:21,287 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:48:21,294 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;@4adc6682, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:48:21,294 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-10-13 16:48:21,296 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:48:21,296 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-10-13 16:48:21,297 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:48:21,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:21,297 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-10-13 16:48:21,297 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-13 16:48:21,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:21,302 INFO L85 PathProgramCache]: Analyzing trace with hash 33422, now seen corresponding path program 1 times [2024-10-13 16:48:21,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:21,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275816420] [2024-10-13 16:48:21,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:21,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:21,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:21,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:21,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275816420] [2024-10-13 16:48:21,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275816420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:21,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:21,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:48:21,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150853138] [2024-10-13 16:48:21,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:21,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:48:21,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:21,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:48:21,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:48:21,542 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-10-13 16:48:21,544 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) [2024-10-13 16:48:21,544 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:21,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-10-13 16:48:21,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:25,764 INFO L124 PetriNetUnfolderBase]: 38646/51872 cut-off events. [2024-10-13 16:48:25,766 INFO L125 PetriNetUnfolderBase]: For 1933/1933 co-relation queries the response was YES. [2024-10-13 16:48:25,874 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. [2024-10-13 16:48:26,184 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 62 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2024-10-13 16:48:26,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 70 transitions, 293 flow [2024-10-13 16:48:26,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:48:26,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:48:26,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-10-13 16:48:26,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3882783882783883 [2024-10-13 16:48:26,196 INFO L175 Difference]: Start difference. First operand has 84 places, 80 transitions, 187 flow. Second operand 3 states and 106 transitions. [2024-10-13 16:48:26,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 70 transitions, 293 flow [2024-10-13 16:48:26,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 70 transitions, 276 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-13 16:48:26,229 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 152 flow [2024-10-13 16:48:26,231 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} [2024-10-13 16:48:26,235 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -12 predicate places. [2024-10-13 16:48:26,235 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 152 flow [2024-10-13 16:48:26,236 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) [2024-10-13 16:48:26,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:26,236 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-13 16:48:26,236 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:48:26,237 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-13 16:48:26,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:26,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1037105, now seen corresponding path program 1 times [2024-10-13 16:48:26,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:26,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216359782] [2024-10-13 16:48:26,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:26,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:26,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:26,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:26,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216359782] [2024-10-13 16:48:26,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216359782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:26,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:26,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-13 16:48:26,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302937701] [2024-10-13 16:48:26,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:26,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:48:26,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:26,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:48:26,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:48:26,287 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-10-13 16:48:26,287 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) [2024-10-13 16:48:26,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:26,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-10-13 16:48:26,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:29,378 INFO L124 PetriNetUnfolderBase]: 31318/42066 cut-off events. [2024-10-13 16:48:29,378 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2024-10-13 16:48:29,430 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. [2024-10-13 16:48:29,601 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 58 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2024-10-13 16:48:29,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 66 transitions, 262 flow [2024-10-13 16:48:29,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:48:29,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:48:29,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-10-13 16:48:29,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3516483516483517 [2024-10-13 16:48:29,604 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 152 flow. Second operand 3 states and 96 transitions. [2024-10-13 16:48:29,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 66 transitions, 262 flow [2024-10-13 16:48:29,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:48:29,607 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 145 flow [2024-10-13 16:48:29,607 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} [2024-10-13 16:48:29,608 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -15 predicate places. [2024-10-13 16:48:29,608 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 145 flow [2024-10-13 16:48:29,608 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) [2024-10-13 16:48:29,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:29,609 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-13 16:48:29,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 16:48:29,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-13 16:48:29,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:29,611 INFO L85 PathProgramCache]: Analyzing trace with hash 996691151, now seen corresponding path program 1 times [2024-10-13 16:48:29,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:29,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231474552] [2024-10-13 16:48:29,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:29,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:29,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:29,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231474552] [2024-10-13 16:48:29,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231474552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:29,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:29,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:48:29,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573955229] [2024-10-13 16:48:29,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:29,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:48:29,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:29,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:48:29,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:48:29,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-10-13 16:48:29,752 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) [2024-10-13 16:48:29,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:29,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-10-13 16:48:29,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:32,646 INFO L124 PetriNetUnfolderBase]: 31319/42070 cut-off events. [2024-10-13 16:48:32,646 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2024-10-13 16:48:32,742 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. [2024-10-13 16:48:33,012 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 60 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2024-10-13 16:48:33,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 69 transitions, 279 flow [2024-10-13 16:48:33,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:48:33,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:48:33,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-10-13 16:48:33,017 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3021978021978022 [2024-10-13 16:48:33,018 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 145 flow. Second operand 4 states and 110 transitions. [2024-10-13 16:48:33,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 69 transitions, 279 flow [2024-10-13 16:48:33,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 69 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:48:33,025 INFO L231 Difference]: Finished difference. Result has 73 places, 69 transitions, 173 flow [2024-10-13 16:48:33,025 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} [2024-10-13 16:48:33,026 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2024-10-13 16:48:33,029 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 173 flow [2024-10-13 16:48:33,029 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) [2024-10-13 16:48:33,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:33,030 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:33,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 16:48:33,030 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-13 16:48:33,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:33,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1318222748, now seen corresponding path program 1 times [2024-10-13 16:48:33,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:33,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535024414] [2024-10-13 16:48:33,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:33,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:33,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:33,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:33,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535024414] [2024-10-13 16:48:33,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535024414] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:48:33,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685977567] [2024-10-13 16:48:33,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:33,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:48:33,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:48:33,123 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) [2024-10-13 16:48:33,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 16:48:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:33,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:48:33,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:48:33,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:33,242 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:48:33,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685977567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:33,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:48:33,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-13 16:48:33,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394829293] [2024-10-13 16:48:33,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:33,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:48:33,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:33,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:48:33,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:48:33,249 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-10-13 16:48:33,249 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) [2024-10-13 16:48:33,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:33,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-10-13 16:48:33,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:36,276 INFO L124 PetriNetUnfolderBase]: 31319/42069 cut-off events. [2024-10-13 16:48:36,276 INFO L125 PetriNetUnfolderBase]: For 257/257 co-relation queries the response was YES. [2024-10-13 16:48:36,374 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. [2024-10-13 16:48:36,482 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 56 selfloop transitions, 7 changer transitions 0/68 dead transitions. [2024-10-13 16:48:36,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 68 transitions, 295 flow [2024-10-13 16:48:36,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:48:36,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:48:36,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-10-13 16:48:36,484 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2024-10-13 16:48:36,484 INFO L175 Difference]: Start difference. First operand has 73 places, 69 transitions, 173 flow. Second operand 6 states and 130 transitions. [2024-10-13 16:48:36,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 68 transitions, 295 flow [2024-10-13 16:48:36,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 68 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:48:36,486 INFO L231 Difference]: Finished difference. Result has 76 places, 68 transitions, 180 flow [2024-10-13 16:48:36,486 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} [2024-10-13 16:48:36,487 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2024-10-13 16:48:36,490 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 68 transitions, 180 flow [2024-10-13 16:48:36,490 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) [2024-10-13 16:48:36,490 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:36,490 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-10-13 16:48:36,505 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 16:48:36,691 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 [2024-10-13 16:48:36,692 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-13 16:48:36,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:36,692 INFO L85 PathProgramCache]: Analyzing trace with hash -2084766703, now seen corresponding path program 1 times [2024-10-13 16:48:36,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:36,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163590541] [2024-10-13 16:48:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:36,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:36,771 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:36,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:36,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163590541] [2024-10-13 16:48:36,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163590541] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:48:36,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732281501] [2024-10-13 16:48:36,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:36,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:48:36,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:48:36,773 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) [2024-10-13 16:48:36,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 16:48:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:36,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:48:36,846 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:48:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:36,870 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:48:36,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:36,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732281501] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:48:36,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:48:36,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-13 16:48:36,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51246427] [2024-10-13 16:48:36,905 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:48:36,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 16:48:36,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:36,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 16:48:36,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-13 16:48:36,917 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-10-13 16:48:36,917 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) [2024-10-13 16:48:36,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:36,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-10-13 16:48:36,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:39,936 INFO L124 PetriNetUnfolderBase]: 31322/42081 cut-off events. [2024-10-13 16:48:39,936 INFO L125 PetriNetUnfolderBase]: For 274/274 co-relation queries the response was YES. [2024-10-13 16:48:40,037 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. [2024-10-13 16:48:40,147 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 59 selfloop transitions, 13 changer transitions 0/77 dead transitions. [2024-10-13 16:48:40,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 77 transitions, 378 flow [2024-10-13 16:48:40,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 16:48:40,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 16:48:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2024-10-13 16:48:40,149 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.2032967032967033 [2024-10-13 16:48:40,149 INFO L175 Difference]: Start difference. First operand has 76 places, 68 transitions, 180 flow. Second operand 10 states and 185 transitions. [2024-10-13 16:48:40,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 77 transitions, 378 flow [2024-10-13 16:48:40,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 332 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-10-13 16:48:40,151 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 232 flow [2024-10-13 16:48:40,151 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} [2024-10-13 16:48:40,152 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, -1 predicate places. [2024-10-13 16:48:40,152 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 232 flow [2024-10-13 16:48:40,152 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) [2024-10-13 16:48:40,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:40,152 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:40,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 16:48:40,356 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 [2024-10-13 16:48:40,357 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-13 16:48:40,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:40,357 INFO L85 PathProgramCache]: Analyzing trace with hash 353947523, now seen corresponding path program 1 times [2024-10-13 16:48:40,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:40,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803983480] [2024-10-13 16:48:40,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:40,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:40,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:40,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:40,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803983480] [2024-10-13 16:48:40,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803983480] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:40,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:40,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:48:40,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964842263] [2024-10-13 16:48:40,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:40,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:48:40,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:40,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:48:40,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:48:40,438 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 91 [2024-10-13 16:48:40,438 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) [2024-10-13 16:48:40,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:40,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 91 [2024-10-13 16:48:40,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:44,467 INFO L124 PetriNetUnfolderBase]: 44938/60299 cut-off events. [2024-10-13 16:48:44,468 INFO L125 PetriNetUnfolderBase]: For 508/508 co-relation queries the response was YES. [2024-10-13 16:48:44,648 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. [2024-10-13 16:48:44,805 INFO L140 encePairwiseOnDemand]: 88/91 looper letters, 113 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2024-10-13 16:48:44,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 121 transitions, 557 flow [2024-10-13 16:48:44,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:48:44,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:48:44,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-10-13 16:48:44,807 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-10-13 16:48:44,807 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 232 flow. Second operand 3 states and 143 transitions. [2024-10-13 16:48:44,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 121 transitions, 557 flow [2024-10-13 16:48:44,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 121 transitions, 546 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-10-13 16:48:44,812 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 233 flow [2024-10-13 16:48:44,812 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} [2024-10-13 16:48:44,813 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2024-10-13 16:48:44,814 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 233 flow [2024-10-13 16:48:44,814 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) [2024-10-13 16:48:44,814 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:44,814 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:44,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 16:48:44,815 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-13 16:48:44,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:44,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2098893595, now seen corresponding path program 1 times [2024-10-13 16:48:44,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:44,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801710758] [2024-10-13 16:48:44,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:44,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:44,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:44,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801710758] [2024-10-13 16:48:44,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801710758] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:44,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:44,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:48:44,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266612642] [2024-10-13 16:48:44,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:44,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:48:44,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:44,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:48:44,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:48:44,889 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 91 [2024-10-13 16:48:44,889 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) [2024-10-13 16:48:44,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:44,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 91 [2024-10-13 16:48:44,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:50,043 INFO L124 PetriNetUnfolderBase]: 55353/74399 cut-off events. [2024-10-13 16:48:50,044 INFO L125 PetriNetUnfolderBase]: For 5187/5187 co-relation queries the response was YES. [2024-10-13 16:48:50,272 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. [2024-10-13 16:48:50,477 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 107 selfloop transitions, 3 changer transitions 0/116 dead transitions. [2024-10-13 16:48:50,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 116 transitions, 547 flow [2024-10-13 16:48:50,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:48:50,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:48:50,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-10-13 16:48:50,478 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5018315018315018 [2024-10-13 16:48:50,478 INFO L175 Difference]: Start difference. First operand has 84 places, 78 transitions, 233 flow. Second operand 3 states and 137 transitions. [2024-10-13 16:48:50,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 116 transitions, 547 flow [2024-10-13 16:48:50,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 116 transitions, 543 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:48:50,492 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 252 flow [2024-10-13 16:48:50,492 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} [2024-10-13 16:48:50,493 INFO L277 CegarLoopForPetriNet]: 84 programPoint places, 2 predicate places. [2024-10-13 16:48:50,493 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 252 flow [2024-10-13 16:48:50,493 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) [2024-10-13 16:48:50,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:50,493 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:50,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 16:48:50,493 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-10-13 16:48:50,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:50,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1912527504, now seen corresponding path program 1 times [2024-10-13 16:48:50,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:50,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372722434] [2024-10-13 16:48:50,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:50,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:50,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:50,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:48:50,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:50,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372722434] [2024-10-13 16:48:50,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372722434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:50,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:50,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 16:48:50,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557559137] [2024-10-13 16:48:50,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:50,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:48:50,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:50,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:48:50,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:48:50,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-10-13 16:48:50,605 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) [2024-10-13 16:48:50,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:50,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-10-13 16:48:50,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand