./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.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 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:25:13,215 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:25:13,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:25:13,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:25:13,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:25:13,313 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:25:13,314 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:25:13,314 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:25:13,315 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:25:13,316 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:25:13,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:25:13,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:25:13,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:25:13,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:25:13,317 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:25:13,317 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:25:13,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:25:13,317 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:25:13,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:25:13,318 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:25:13,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:25:13,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:25:13,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:25:13,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:25:13,323 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:25:13,323 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:25:13,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:25:13,324 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:25:13,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:25:13,324 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:25:13,324 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:25:13,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:25:13,324 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:25:13,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:25:13,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:25:13,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:25:13,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:25:13,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:25:13,325 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:25:13,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:25:13,325 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:25:13,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:25:13,327 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:25:13,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:25:13,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 [2024-11-10 22:25:13,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:25:13,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:25:13,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:25:13,570 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:25:13,570 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:25:13,571 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-11-10 22:25:14,876 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:25:15,018 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:25:15,019 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-11-10 22:25:15,025 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/448c2d114/b4a5177baad04718a1feda4da8710ad2/FLAGbacfc9010 [2024-11-10 22:25:15,036 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/448c2d114/b4a5177baad04718a1feda4da8710ad2 [2024-11-10 22:25:15,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:25:15,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:25:15,043 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:25:15,043 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:25:15,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:25:15,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@110704b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15, skipping insertion in model container [2024-11-10 22:25:15,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,068 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:25:15,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:25:15,248 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:25:15,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:25:15,292 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:25:15,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15 WrapperNode [2024-11-10 22:25:15,292 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:25:15,293 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:25:15,293 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:25:15,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:25:15,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,304 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,327 INFO L138 Inliner]: procedures = 25, calls = 31, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 343 [2024-11-10 22:25:15,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:25:15,329 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:25:15,329 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:25:15,329 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:25:15,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,341 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,355 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-11-10 22:25:15,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,362 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,369 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:25:15,372 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:25:15,372 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:25:15,372 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:25:15,373 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (1/1) ... [2024-11-10 22:25:15,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:25:15,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:25:15,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 22:25:15,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 22:25:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:25:15,440 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 22:25:15,440 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 22:25:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 22:25:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 22:25:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 22:25:15,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 22:25:15,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:25:15,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:25:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:25:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:25:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:25:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:25:15,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:25:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:25:15,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:25:15,444 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:25:15,546 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:25:15,548 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:25:16,061 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:25:16,061 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:25:16,287 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:25:16,287 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:25:16,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:25:16 BoogieIcfgContainer [2024-11-10 22:25:16,288 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:25:16,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:25:16,291 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:25:16,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:25:16,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:25:15" (1/3) ... [2024-11-10 22:25:16,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b3b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:25:16, skipping insertion in model container [2024-11-10 22:25:16,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:25:15" (2/3) ... [2024-11-10 22:25:16,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b3b81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:25:16, skipping insertion in model container [2024-11-10 22:25:16,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:25:16" (3/3) ... [2024-11-10 22:25:16,297 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2024-11-10 22:25:16,310 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:25:16,310 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-10 22:25:16,310 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:25:16,387 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 22:25:16,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 161 transitions, 343 flow [2024-11-10 22:25:16,467 INFO L124 PetriNetUnfolderBase]: 22/158 cut-off events. [2024-11-10 22:25:16,468 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 22:25:16,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 22/158 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 529 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2024-11-10 22:25:16,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 161 transitions, 343 flow [2024-11-10 22:25:16,475 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 157 transitions, 332 flow [2024-11-10 22:25:16,482 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:25:16,486 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;@663d1fa2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:25:16,487 INFO L334 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2024-11-10 22:25:16,489 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:25:16,490 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:25:16,490 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:25:16,490 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:16,490 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:25:16,491 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:16,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:16,495 INFO L85 PathProgramCache]: Analyzing trace with hash 31801557, now seen corresponding path program 1 times [2024-11-10 22:25:16,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:16,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475672049] [2024-11-10 22:25:16,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:16,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:16,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:16,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:16,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475672049] [2024-11-10 22:25:16,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475672049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:25:16,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:25:16,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:25:16,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595995014] [2024-11-10 22:25:16,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:25:16,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:25:16,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:16,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:25:16,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:25:16,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 161 [2024-11-10 22:25:16,748 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 157 transitions, 332 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:16,748 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:16,748 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 161 [2024-11-10 22:25:16,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:18,156 INFO L124 PetriNetUnfolderBase]: 6099/13291 cut-off events. [2024-11-10 22:25:18,156 INFO L125 PetriNetUnfolderBase]: For 299/299 co-relation queries the response was YES. [2024-11-10 22:25:18,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21619 conditions, 13291 events. 6099/13291 cut-off events. For 299/299 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 127081 event pairs, 4001 based on Foata normal form. 591/11811 useless extension candidates. Maximal degree in co-relation 20536. Up to 8033 conditions per place. [2024-11-10 22:25:18,238 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 61 selfloop transitions, 10 changer transitions 0/160 dead transitions. [2024-11-10 22:25:18,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 160 transitions, 480 flow [2024-11-10 22:25:18,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:25:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:25:18,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 454 transitions. [2024-11-10 22:25:18,249 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7049689440993789 [2024-11-10 22:25:18,250 INFO L175 Difference]: Start difference. First operand has 145 places, 157 transitions, 332 flow. Second operand 4 states and 454 transitions. [2024-11-10 22:25:18,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 160 transitions, 480 flow [2024-11-10 22:25:18,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 160 transitions, 468 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-10 22:25:18,263 INFO L231 Difference]: Finished difference. Result has 145 places, 160 transitions, 396 flow [2024-11-10 22:25:18,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=145, PETRI_TRANSITIONS=160} [2024-11-10 22:25:18,267 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 0 predicate places. [2024-11-10 22:25:18,267 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 160 transitions, 396 flow [2024-11-10 22:25:18,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:18,268 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:18,268 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:25:18,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:25:18,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:18,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:18,269 INFO L85 PathProgramCache]: Analyzing trace with hash 447370249, now seen corresponding path program 1 times [2024-11-10 22:25:18,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:18,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248216271] [2024-11-10 22:25:18,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:18,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:18,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:18,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:18,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248216271] [2024-11-10 22:25:18,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248216271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:25:18,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950993005] [2024-11-10 22:25:18,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:18,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:25:18,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:25:18,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:25:18,550 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:25:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:18,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:25:18,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:25:18,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:18,659 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:25:18,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950993005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:25:18,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:25:18,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:25:18,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508051677] [2024-11-10 22:25:18,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:25:18,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:25:18,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:18,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:25:18,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:25:18,692 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 161 [2024-11-10 22:25:18,693 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 160 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:18,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:18,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 161 [2024-11-10 22:25:18,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:19,627 INFO L124 PetriNetUnfolderBase]: 6099/13288 cut-off events. [2024-11-10 22:25:19,628 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2024-11-10 22:25:19,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21451 conditions, 13288 events. 6099/13288 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 127105 event pairs, 4001 based on Foata normal form. 3/11220 useless extension candidates. Maximal degree in co-relation 21372. Up to 8018 conditions per place. [2024-11-10 22:25:19,701 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 51 selfloop transitions, 17 changer transitions 0/157 dead transitions. [2024-11-10 22:25:19,701 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 157 transitions, 520 flow [2024-11-10 22:25:19,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:25:19,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:25:19,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 623 transitions. [2024-11-10 22:25:19,704 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.644927536231884 [2024-11-10 22:25:19,704 INFO L175 Difference]: Start difference. First operand has 145 places, 160 transitions, 396 flow. Second operand 6 states and 623 transitions. [2024-11-10 22:25:19,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 157 transitions, 520 flow [2024-11-10 22:25:19,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 157 transitions, 520 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:25:19,707 INFO L231 Difference]: Finished difference. Result has 147 places, 157 transitions, 418 flow [2024-11-10 22:25:19,708 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=418, PETRI_PLACES=147, PETRI_TRANSITIONS=157} [2024-11-10 22:25:19,708 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 2 predicate places. [2024-11-10 22:25:19,708 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 157 transitions, 418 flow [2024-11-10 22:25:19,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:19,709 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:19,709 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:25:19,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:25:19,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:25:19,911 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:19,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:19,912 INFO L85 PathProgramCache]: Analyzing trace with hash 983576737, now seen corresponding path program 1 times [2024-11-10 22:25:19,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:19,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944387534] [2024-11-10 22:25:19,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:19,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:19,978 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:19,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:19,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944387534] [2024-11-10 22:25:19,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944387534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:25:19,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47994408] [2024-11-10 22:25:19,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:19,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:25:19,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:25:19,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:25:19,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:25:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:20,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:25:20,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:25:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:20,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:25:20,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:20,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47994408] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:25:20,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:25:20,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-10 22:25:20,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013856258] [2024-11-10 22:25:20,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:25:20,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:25:20,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:20,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:25:20,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:25:20,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 161 [2024-11-10 22:25:20,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 157 transitions, 418 flow. Second operand has 12 states, 12 states have (on average 93.08333333333333) internal successors, (1117), 12 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:20,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:20,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 161 [2024-11-10 22:25:20,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:21,166 INFO L124 PetriNetUnfolderBase]: 6108/13342 cut-off events. [2024-11-10 22:25:21,166 INFO L125 PetriNetUnfolderBase]: For 273/273 co-relation queries the response was YES. [2024-11-10 22:25:21,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21610 conditions, 13342 events. 6108/13342 cut-off events. For 273/273 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 127589 event pairs, 4001 based on Foata normal form. 9/11283 useless extension candidates. Maximal degree in co-relation 21374. Up to 8033 conditions per place. [2024-11-10 22:25:21,212 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 58 selfloop transitions, 37 changer transitions 0/184 dead transitions. [2024-11-10 22:25:21,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 184 transitions, 782 flow [2024-11-10 22:25:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:25:21,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:25:21,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1024 transitions. [2024-11-10 22:25:21,215 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6360248447204969 [2024-11-10 22:25:21,215 INFO L175 Difference]: Start difference. First operand has 147 places, 157 transitions, 418 flow. Second operand 10 states and 1024 transitions. [2024-11-10 22:25:21,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 184 transitions, 782 flow [2024-11-10 22:25:21,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 184 transitions, 699 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-10 22:25:21,219 INFO L231 Difference]: Finished difference. Result has 154 places, 184 transitions, 633 flow [2024-11-10 22:25:21,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=633, PETRI_PLACES=154, PETRI_TRANSITIONS=184} [2024-11-10 22:25:21,219 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 9 predicate places. [2024-11-10 22:25:21,220 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 184 transitions, 633 flow [2024-11-10 22:25:21,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 93.08333333333333) internal successors, (1117), 12 states have internal predecessors, (1117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:21,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:21,220 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:25:21,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:25:21,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-10 22:25:21,422 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:21,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:21,423 INFO L85 PathProgramCache]: Analyzing trace with hash 756166512, now seen corresponding path program 1 times [2024-11-10 22:25:21,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:21,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398209620] [2024-11-10 22:25:21,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:21,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:21,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:21,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:21,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398209620] [2024-11-10 22:25:21,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398209620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:25:21,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:25:21,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:25:21,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563432388] [2024-11-10 22:25:21,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:25:21,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:25:21,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:21,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:25:21,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:25:21,491 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 161 [2024-11-10 22:25:21,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 184 transitions, 633 flow. Second operand has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:21,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:21,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 161 [2024-11-10 22:25:21,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:22,976 INFO L124 PetriNetUnfolderBase]: 12182/22710 cut-off events. [2024-11-10 22:25:22,977 INFO L125 PetriNetUnfolderBase]: For 318/318 co-relation queries the response was YES. [2024-11-10 22:25:23,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39122 conditions, 22710 events. 12182/22710 cut-off events. For 318/318 co-relation queries the response was YES. Maximal size of possible extension queue 937. Compared 206524 event pairs, 3633 based on Foata normal form. 544/20124 useless extension candidates. Maximal degree in co-relation 39018. Up to 7416 conditions per place. [2024-11-10 22:25:23,113 INFO L140 encePairwiseOnDemand]: 153/161 looper letters, 152 selfloop transitions, 5 changer transitions 0/243 dead transitions. [2024-11-10 22:25:23,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 243 transitions, 1069 flow [2024-11-10 22:25:23,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:25:23,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:25:23,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2024-11-10 22:25:23,115 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7639751552795031 [2024-11-10 22:25:23,115 INFO L175 Difference]: Start difference. First operand has 154 places, 184 transitions, 633 flow. Second operand 4 states and 492 transitions. [2024-11-10 22:25:23,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 243 transitions, 1069 flow [2024-11-10 22:25:23,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 243 transitions, 1032 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-10 22:25:23,121 INFO L231 Difference]: Finished difference. Result has 157 places, 186 transitions, 630 flow [2024-11-10 22:25:23,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=630, PETRI_PLACES=157, PETRI_TRANSITIONS=186} [2024-11-10 22:25:23,122 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 12 predicate places. [2024-11-10 22:25:23,122 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 186 transitions, 630 flow [2024-11-10 22:25:23,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:23,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:23,122 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:25:23,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:25:23,123 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:23,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:23,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1966326391, now seen corresponding path program 1 times [2024-11-10 22:25:23,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:23,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071341895] [2024-11-10 22:25:23,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:23,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:23,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:23,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:23,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:23,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071341895] [2024-11-10 22:25:23,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071341895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:25:23,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:25:23,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:25:23,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845994567] [2024-11-10 22:25:23,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:25:23,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:25:23,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:23,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:25:23,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:25:23,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 161 [2024-11-10 22:25:23,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 186 transitions, 630 flow. Second operand has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:23,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:23,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 161 [2024-11-10 22:25:23,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:24,651 INFO L124 PetriNetUnfolderBase]: 9635/21380 cut-off events. [2024-11-10 22:25:24,654 INFO L125 PetriNetUnfolderBase]: For 3612/4000 co-relation queries the response was YES. [2024-11-10 22:25:24,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36761 conditions, 21380 events. 9635/21380 cut-off events. For 3612/4000 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 213650 event pairs, 5900 based on Foata normal form. 389/18577 useless extension candidates. Maximal degree in co-relation 36593. Up to 10207 conditions per place. [2024-11-10 22:25:24,751 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 175 selfloop transitions, 24 changer transitions 0/288 dead transitions. [2024-11-10 22:25:24,752 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 288 transitions, 1364 flow [2024-11-10 22:25:24,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:25:24,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:25:24,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 723 transitions. [2024-11-10 22:25:24,756 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7484472049689441 [2024-11-10 22:25:24,756 INFO L175 Difference]: Start difference. First operand has 157 places, 186 transitions, 630 flow. Second operand 6 states and 723 transitions. [2024-11-10 22:25:24,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 288 transitions, 1364 flow [2024-11-10 22:25:24,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 288 transitions, 1364 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:25:24,797 INFO L231 Difference]: Finished difference. Result has 165 places, 197 transitions, 764 flow [2024-11-10 22:25:24,797 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=764, PETRI_PLACES=165, PETRI_TRANSITIONS=197} [2024-11-10 22:25:24,798 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 20 predicate places. [2024-11-10 22:25:24,798 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 197 transitions, 764 flow [2024-11-10 22:25:24,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:24,799 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:24,799 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:25:24,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:25:24,799 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:24,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:24,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1171476136, now seen corresponding path program 1 times [2024-11-10 22:25:24,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:24,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698631663] [2024-11-10 22:25:24,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:24,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:24,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:24,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:24,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698631663] [2024-11-10 22:25:24,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698631663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:25:24,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:25:24,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:25:24,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111338199] [2024-11-10 22:25:24,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:25:24,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:25:24,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:24,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:25:24,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:25:24,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 161 [2024-11-10 22:25:24,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 197 transitions, 764 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:24,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:24,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 161 [2024-11-10 22:25:24,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:27,771 INFO L124 PetriNetUnfolderBase]: 20213/37285 cut-off events. [2024-11-10 22:25:27,772 INFO L125 PetriNetUnfolderBase]: For 11335/11853 co-relation queries the response was YES. [2024-11-10 22:25:27,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73255 conditions, 37285 events. 20213/37285 cut-off events. For 11335/11853 co-relation queries the response was YES. Maximal size of possible extension queue 1256. Compared 346006 event pairs, 6591 based on Foata normal form. 1168/34154 useless extension candidates. Maximal degree in co-relation 73079. Up to 12964 conditions per place. [2024-11-10 22:25:28,530 INFO L140 encePairwiseOnDemand]: 153/161 looper letters, 168 selfloop transitions, 5 changer transitions 0/262 dead transitions. [2024-11-10 22:25:28,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 262 transitions, 1308 flow [2024-11-10 22:25:28,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:25:28,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:25:28,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2024-11-10 22:25:28,533 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2024-11-10 22:25:28,533 INFO L175 Difference]: Start difference. First operand has 165 places, 197 transitions, 764 flow. Second operand 4 states and 490 transitions. [2024-11-10 22:25:28,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 262 transitions, 1308 flow [2024-11-10 22:25:28,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 262 transitions, 1308 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:25:28,679 INFO L231 Difference]: Finished difference. Result has 170 places, 199 transitions, 798 flow [2024-11-10 22:25:28,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=798, PETRI_PLACES=170, PETRI_TRANSITIONS=199} [2024-11-10 22:25:28,680 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 25 predicate places. [2024-11-10 22:25:28,680 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 199 transitions, 798 flow [2024-11-10 22:25:28,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:28,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:28,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:25:28,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:25:28,681 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:28,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:28,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1956022875, now seen corresponding path program 1 times [2024-11-10 22:25:28,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:28,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547914452] [2024-11-10 22:25:28,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:28,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:28,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:28,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:28,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547914452] [2024-11-10 22:25:28,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547914452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:25:28,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:25:28,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:25:28,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031791476] [2024-11-10 22:25:28,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:25:28,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:25:28,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:28,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:25:28,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:25:28,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 161 [2024-11-10 22:25:28,796 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 199 transitions, 798 flow. Second operand has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:28,796 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:28,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 161 [2024-11-10 22:25:28,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:30,684 INFO L124 PetriNetUnfolderBase]: 10315/22784 cut-off events. [2024-11-10 22:25:30,685 INFO L125 PetriNetUnfolderBase]: For 9354/10364 co-relation queries the response was YES. [2024-11-10 22:25:30,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43661 conditions, 22784 events. 10315/22784 cut-off events. For 9354/10364 co-relation queries the response was YES. Maximal size of possible extension queue 944. Compared 233328 event pairs, 6946 based on Foata normal form. 615/20164 useless extension candidates. Maximal degree in co-relation 43477. Up to 12914 conditions per place. [2024-11-10 22:25:30,804 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 162 selfloop transitions, 24 changer transitions 0/275 dead transitions. [2024-11-10 22:25:30,804 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 275 transitions, 1444 flow [2024-11-10 22:25:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:25:30,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:25:30,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 708 transitions. [2024-11-10 22:25:30,809 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7329192546583851 [2024-11-10 22:25:30,809 INFO L175 Difference]: Start difference. First operand has 170 places, 199 transitions, 798 flow. Second operand 6 states and 708 transitions. [2024-11-10 22:25:30,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 275 transitions, 1444 flow [2024-11-10 22:25:30,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 275 transitions, 1444 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:25:30,882 INFO L231 Difference]: Finished difference. Result has 177 places, 201 transitions, 867 flow [2024-11-10 22:25:30,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=867, PETRI_PLACES=177, PETRI_TRANSITIONS=201} [2024-11-10 22:25:30,888 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 32 predicate places. [2024-11-10 22:25:30,888 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 201 transitions, 867 flow [2024-11-10 22:25:30,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:30,888 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:30,888 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:25:30,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:25:30,888 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:30,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:30,889 INFO L85 PathProgramCache]: Analyzing trace with hash -897284273, now seen corresponding path program 1 times [2024-11-10 22:25:30,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:30,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882727485] [2024-11-10 22:25:30,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:30,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:30,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:30,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:30,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882727485] [2024-11-10 22:25:30,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882727485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:25:30,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:25:30,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:25:30,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790477613] [2024-11-10 22:25:30,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:25:30,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:25:30,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:30,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:25:30,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:25:31,006 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 161 [2024-11-10 22:25:31,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 201 transitions, 867 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:31,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:31,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 161 [2024-11-10 22:25:31,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:34,440 INFO L124 PetriNetUnfolderBase]: 22965/42374 cut-off events. [2024-11-10 22:25:34,440 INFO L125 PetriNetUnfolderBase]: For 24784/26770 co-relation queries the response was YES. [2024-11-10 22:25:34,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91799 conditions, 42374 events. 22965/42374 cut-off events. For 24784/26770 co-relation queries the response was YES. Maximal size of possible extension queue 1717. Compared 406595 event pairs, 7028 based on Foata normal form. 2129/39577 useless extension candidates. Maximal degree in co-relation 91613. Up to 13250 conditions per place. [2024-11-10 22:25:34,883 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 172 selfloop transitions, 10 changer transitions 0/265 dead transitions. [2024-11-10 22:25:34,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 265 transitions, 1491 flow [2024-11-10 22:25:34,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:25:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:25:34,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 466 transitions. [2024-11-10 22:25:34,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7236024844720497 [2024-11-10 22:25:34,885 INFO L175 Difference]: Start difference. First operand has 177 places, 201 transitions, 867 flow. Second operand 4 states and 466 transitions. [2024-11-10 22:25:34,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 265 transitions, 1491 flow [2024-11-10 22:25:35,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 265 transitions, 1454 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:25:35,057 INFO L231 Difference]: Finished difference. Result has 178 places, 205 transitions, 896 flow [2024-11-10 22:25:35,057 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=896, PETRI_PLACES=178, PETRI_TRANSITIONS=205} [2024-11-10 22:25:35,058 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 33 predicate places. [2024-11-10 22:25:35,058 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 205 transitions, 896 flow [2024-11-10 22:25:35,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:35,058 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:35,059 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-10 22:25:35,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:25:35,059 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:35,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:35,059 INFO L85 PathProgramCache]: Analyzing trace with hash 123012741, now seen corresponding path program 2 times [2024-11-10 22:25:35,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:35,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857074411] [2024-11-10 22:25:35,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:35,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:35,208 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:35,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:35,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857074411] [2024-11-10 22:25:35,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857074411] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:25:35,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861930916] [2024-11-10 22:25:35,209 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:25:35,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:25:35,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:25:35,211 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:25:35,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:25:35,265 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:25:35,265 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:25:35,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:25:35,267 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:25:35,301 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:25:35,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:25:35,328 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:25:35,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861930916] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:25:35,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:25:35,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-10 22:25:35,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073420448] [2024-11-10 22:25:35,328 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:25:35,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 22:25:35,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:35,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 22:25:35,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-10 22:25:35,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 161 [2024-11-10 22:25:35,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 205 transitions, 896 flow. Second operand has 14 states, 14 states have (on average 90.14285714285714) internal successors, (1262), 14 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:35,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:35,379 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 161 [2024-11-10 22:25:35,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:38,589 INFO L124 PetriNetUnfolderBase]: 14760/31849 cut-off events. [2024-11-10 22:25:38,590 INFO L125 PetriNetUnfolderBase]: For 22059/23876 co-relation queries the response was YES. [2024-11-10 22:25:38,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69582 conditions, 31849 events. 14760/31849 cut-off events. For 22059/23876 co-relation queries the response was YES. Maximal size of possible extension queue 1321. Compared 335067 event pairs, 10507 based on Foata normal form. 941/29263 useless extension candidates. Maximal degree in co-relation 69300. Up to 19325 conditions per place. [2024-11-10 22:25:39,008 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 73 selfloop transitions, 69 changer transitions 0/228 dead transitions. [2024-11-10 22:25:39,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 228 transitions, 1302 flow [2024-11-10 22:25:39,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-10 22:25:39,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-10 22:25:39,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2261 transitions. [2024-11-10 22:25:39,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5851449275362319 [2024-11-10 22:25:39,013 INFO L175 Difference]: Start difference. First operand has 178 places, 205 transitions, 896 flow. Second operand 24 states and 2261 transitions. [2024-11-10 22:25:39,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 228 transitions, 1302 flow [2024-11-10 22:25:39,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 228 transitions, 1302 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:25:39,198 INFO L231 Difference]: Finished difference. Result has 203 places, 224 transitions, 1176 flow [2024-11-10 22:25:39,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1176, PETRI_PLACES=203, PETRI_TRANSITIONS=224} [2024-11-10 22:25:39,199 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 58 predicate places. [2024-11-10 22:25:39,199 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 224 transitions, 1176 flow [2024-11-10 22:25:39,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 90.14285714285714) internal successors, (1262), 14 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:39,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:39,200 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:25:39,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 22:25:39,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:25:39,405 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:39,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:39,405 INFO L85 PathProgramCache]: Analyzing trace with hash -2046007632, now seen corresponding path program 1 times [2024-11-10 22:25:39,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:39,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857417933] [2024-11-10 22:25:39,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:39,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:39,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857417933] [2024-11-10 22:25:39,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857417933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:25:39,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:25:39,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:25:39,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542466670] [2024-11-10 22:25:39,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:25:39,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:25:39,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:39,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:25:39,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:25:39,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 161 [2024-11-10 22:25:39,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 224 transitions, 1176 flow. Second operand has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:39,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:39,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 161 [2024-11-10 22:25:39,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:42,430 INFO L124 PetriNetUnfolderBase]: 14026/30750 cut-off events. [2024-11-10 22:25:42,430 INFO L125 PetriNetUnfolderBase]: For 20676/22367 co-relation queries the response was YES. [2024-11-10 22:25:42,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66497 conditions, 30750 events. 14026/30750 cut-off events. For 20676/22367 co-relation queries the response was YES. Maximal size of possible extension queue 1358. Compared 333269 event pairs, 9921 based on Foata normal form. 896/28038 useless extension candidates. Maximal degree in co-relation 66365. Up to 18079 conditions per place. [2024-11-10 22:25:42,693 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 169 selfloop transitions, 27 changer transitions 0/284 dead transitions. [2024-11-10 22:25:42,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 284 transitions, 1940 flow [2024-11-10 22:25:42,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:25:42,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:25:42,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 683 transitions. [2024-11-10 22:25:42,699 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7070393374741201 [2024-11-10 22:25:42,699 INFO L175 Difference]: Start difference. First operand has 203 places, 224 transitions, 1176 flow. Second operand 6 states and 683 transitions. [2024-11-10 22:25:42,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 284 transitions, 1940 flow [2024-11-10 22:25:42,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 284 transitions, 1727 flow, removed 42 selfloop flow, removed 9 redundant places. [2024-11-10 22:25:42,899 INFO L231 Difference]: Finished difference. Result has 201 places, 226 transitions, 1102 flow [2024-11-10 22:25:42,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1102, PETRI_PLACES=201, PETRI_TRANSITIONS=226} [2024-11-10 22:25:42,899 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 56 predicate places. [2024-11-10 22:25:42,904 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 226 transitions, 1102 flow [2024-11-10 22:25:42,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:42,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:42,905 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1] [2024-11-10 22:25:42,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:25:42,905 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:42,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:42,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1064552438, now seen corresponding path program 1 times [2024-11-10 22:25:42,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:42,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390129345] [2024-11-10 22:25:42,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:42,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:43,045 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-10 22:25:43,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:43,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390129345] [2024-11-10 22:25:43,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390129345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:25:43,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:25:43,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:25:43,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668930600] [2024-11-10 22:25:43,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:25:43,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:25:43,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:43,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:25:43,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:25:43,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 161 [2024-11-10 22:25:43,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 226 transitions, 1102 flow. Second operand has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:43,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:43,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 161 [2024-11-10 22:25:43,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:46,080 INFO L124 PetriNetUnfolderBase]: 14014/30674 cut-off events. [2024-11-10 22:25:46,081 INFO L125 PetriNetUnfolderBase]: For 21487/23178 co-relation queries the response was YES. [2024-11-10 22:25:46,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67016 conditions, 30674 events. 14014/30674 cut-off events. For 21487/23178 co-relation queries the response was YES. Maximal size of possible extension queue 1358. Compared 332626 event pairs, 9960 based on Foata normal form. 876/27936 useless extension candidates. Maximal degree in co-relation 66921. Up to 18079 conditions per place. [2024-11-10 22:25:46,371 INFO L140 encePairwiseOnDemand]: 149/161 looper letters, 127 selfloop transitions, 18 changer transitions 0/233 dead transitions. [2024-11-10 22:25:46,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 233 transitions, 1330 flow [2024-11-10 22:25:46,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:25:46,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:25:46,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 570 transitions. [2024-11-10 22:25:46,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7080745341614907 [2024-11-10 22:25:46,373 INFO L175 Difference]: Start difference. First operand has 201 places, 226 transitions, 1102 flow. Second operand 5 states and 570 transitions. [2024-11-10 22:25:46,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 233 transitions, 1330 flow [2024-11-10 22:25:46,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 233 transitions, 1281 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:25:46,776 INFO L231 Difference]: Finished difference. Result has 202 places, 219 transitions, 1001 flow [2024-11-10 22:25:46,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=957, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1001, PETRI_PLACES=202, PETRI_TRANSITIONS=219} [2024-11-10 22:25:46,782 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 57 predicate places. [2024-11-10 22:25:46,782 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 219 transitions, 1001 flow [2024-11-10 22:25:46,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:46,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:25:46,783 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:25:46,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:25:46,783 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-10 22:25:46,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:25:46,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1902699405, now seen corresponding path program 1 times [2024-11-10 22:25:46,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:25:46,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848905989] [2024-11-10 22:25:46,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:46,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:25:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:47,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:47,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:25:47,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848905989] [2024-11-10 22:25:47,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848905989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:25:47,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781222217] [2024-11-10 22:25:47,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:25:47,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:25:47,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:25:47,318 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:25:47,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:25:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:25:47,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-10 22:25:47,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:25:47,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-10 22:25:47,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-10 22:25:47,480 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-10 22:25:47,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-10 22:25:47,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-10 22:25:47,615 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-10 22:25:47,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-10 22:25:47,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-10 22:25:47,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-10 22:25:47,705 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:25:47,706 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:25:47,774 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_134 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_134) c_~A~0.base) c_~A~0.offset) 9223372039002259456))) is different from false [2024-11-10 22:25:47,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 22:25:47,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2024-11-10 22:25:47,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-10 22:25:47,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 69 [2024-11-10 22:25:47,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2024-11-10 22:25:47,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2024-11-10 22:25:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2024-11-10 22:25:48,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781222217] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:25:48,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:25:48,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 24 [2024-11-10 22:25:48,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338443452] [2024-11-10 22:25:48,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:25:48,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-10 22:25:48,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:25:48,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-10 22:25:48,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=508, Unknown=2, NotChecked=46, Total=650 [2024-11-10 22:25:48,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 161 [2024-11-10 22:25:48,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 219 transitions, 1001 flow. Second operand has 26 states, 26 states have (on average 87.0) internal successors, (2262), 26 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:25:48,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:25:48,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 161 [2024-11-10 22:25:48,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:25:58,664 INFO L124 PetriNetUnfolderBase]: 61529/99579 cut-off events. [2024-11-10 22:25:58,665 INFO L125 PetriNetUnfolderBase]: For 75440/82763 co-relation queries the response was YES. [2024-11-10 22:25:59,310 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243737 conditions, 99579 events. 61529/99579 cut-off events. For 75440/82763 co-relation queries the response was YES. Maximal size of possible extension queue 3051. Compared 906325 event pairs, 13364 based on Foata normal form. 3927/95385 useless extension candidates. Maximal degree in co-relation 243642. Up to 28504 conditions per place.