./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/chl-array-int-trans.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 5bb11505151393f96d52a572beff0352326876d897656a8082ae272a8f39e0b4 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:23:48,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:23:48,206 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:23:48,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:23:48,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:23:48,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:23:48,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:23:48,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:23:48,231 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:23:48,231 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:23:48,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:23:48,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:23:48,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:23:48,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:23:48,232 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:23:48,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:23:48,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:23:48,232 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:23:48,232 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:23:48,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:23:48,233 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:23:48,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:23:48,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:23:48,233 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:23:48,233 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:23:48,233 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:23:48,233 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:23:48,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:23:48,233 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:23:48,233 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:23:48,233 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:23:48,234 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:23:48,234 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:23:48,234 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:23:48,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:48,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:23:48,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:23:48,234 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:23:48,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:23:48,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:23:48,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:23:48,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:23:48,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:23:48,235 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:23:48,235 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:23:48,235 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> 5bb11505151393f96d52a572beff0352326876d897656a8082ae272a8f39e0b4 [2025-03-04 15:23:48,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:23:48,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:23:48,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:23:48,454 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:23:48,454 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:23:48,456 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2025-03-04 15:23:49,641 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4c547a68/91af083716f84b308f985f99138a2058/FLAG55edb43ba [2025-03-04 15:23:49,836 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:23:49,837 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2025-03-04 15:23:49,845 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4c547a68/91af083716f84b308f985f99138a2058/FLAG55edb43ba [2025-03-04 15:23:49,862 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4c547a68/91af083716f84b308f985f99138a2058 [2025-03-04 15:23:49,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:23:49,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:23:49,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:49,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:23:49,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:23:49,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:49" (1/1) ... [2025-03-04 15:23:49,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ba7706c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:49, skipping insertion in model container [2025-03-04 15:23:49,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:49" (1/1) ... [2025-03-04 15:23:49,889 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:23:50,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:50,044 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:23:50,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:50,082 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:23:50,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50 WrapperNode [2025-03-04 15:23:50,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:50,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:50,084 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:23:50,084 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:23:50,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,121 INFO L138 Inliner]: procedures = 25, calls = 35, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 314 [2025-03-04 15:23:50,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:50,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:23:50,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:23:50,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:23:50,130 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,137 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,154 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2025-03-04 15:23:50,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,159 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:23:50,168 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:23:50,168 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:23:50,168 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:23:50,169 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:50,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:50,201 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) [2025-03-04 15:23:50,202 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 [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-04 15:23:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-04 15:23:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-04 15:23:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:23:50,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:23:50,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 15:23:50,220 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:23:50,304 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:23:50,306 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:23:50,763 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:23:50,763 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:23:51,007 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:23:51,008 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:23:51,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:51 BoogieIcfgContainer [2025-03-04 15:23:51,008 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:23:51,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:23:51,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:23:51,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:23:51,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:23:49" (1/3) ... [2025-03-04 15:23:51,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee37944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:51, skipping insertion in model container [2025-03-04 15:23:51,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (2/3) ... [2025-03-04 15:23:51,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee37944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:51, skipping insertion in model container [2025-03-04 15:23:51,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:51" (3/3) ... [2025-03-04 15:23:51,019 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-array-int-trans.wvr.c [2025-03-04 15:23:51,031 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:23:51,033 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-array-int-trans.wvr.c that has 4 procedures, 114 locations, 1 initial locations, 6 loop locations, and 36 error locations. [2025-03-04 15:23:51,033 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:23:51,104 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-04 15:23:51,134 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 128 transitions, 277 flow [2025-03-04 15:23:51,179 INFO L124 PetriNetUnfolderBase]: 15/125 cut-off events. [2025-03-04 15:23:51,181 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-04 15:23:51,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 15/125 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 512 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2025-03-04 15:23:51,186 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 128 transitions, 277 flow [2025-03-04 15:23:51,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 123 transitions, 261 flow [2025-03-04 15:23:51,197 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:23:51,207 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;@2f2c2c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:23:51,209 INFO L334 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2025-03-04 15:23:51,216 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:23:51,219 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-04 15:23:51,220 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:23:51,220 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:51,221 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-04 15:23:51,221 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:23:51,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:51,227 INFO L85 PathProgramCache]: Analyzing trace with hash 899218, now seen corresponding path program 1 times [2025-03-04 15:23:51,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:51,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984470733] [2025-03-04 15:23:51,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:51,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:51,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:23:51,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:23:51,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:51,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:51,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:51,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:51,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984470733] [2025-03-04 15:23:51,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984470733] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:51,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:51,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:23:51,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880076352] [2025-03-04 15:23:51,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:51,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:51,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:51,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:51,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:51,514 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-04 15:23:51,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 123 transitions, 261 flow. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 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) [2025-03-04 15:23:51,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:51,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-04 15:23:51,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:53,143 INFO L124 PetriNetUnfolderBase]: 9931/19487 cut-off events. [2025-03-04 15:23:53,144 INFO L125 PetriNetUnfolderBase]: For 430/430 co-relation queries the response was YES. [2025-03-04 15:23:53,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32899 conditions, 19487 events. 9931/19487 cut-off events. For 430/430 co-relation queries the response was YES. Maximal size of possible extension queue 923. Compared 179747 event pairs, 6561 based on Foata normal form. 3/15824 useless extension candidates. Maximal degree in co-relation 31712. Up to 13038 conditions per place. [2025-03-04 15:23:53,283 INFO L140 encePairwiseOnDemand]: 112/128 looper letters, 59 selfloop transitions, 10 changer transitions 0/132 dead transitions. [2025-03-04 15:23:53,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 132 transitions, 417 flow [2025-03-04 15:23:53,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:53,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:53,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2025-03-04 15:23:53,297 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.662109375 [2025-03-04 15:23:53,299 INFO L175 Difference]: Start difference. First operand has 118 places, 123 transitions, 261 flow. Second operand 4 states and 339 transitions. [2025-03-04 15:23:53,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 132 transitions, 417 flow [2025-03-04 15:23:53,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 132 transitions, 408 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 15:23:53,309 INFO L231 Difference]: Finished difference. Result has 119 places, 132 transitions, 340 flow [2025-03-04 15:23:53,311 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=340, PETRI_PLACES=119, PETRI_TRANSITIONS=132} [2025-03-04 15:23:53,314 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 1 predicate places. [2025-03-04 15:23:53,314 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 132 transitions, 340 flow [2025-03-04 15:23:53,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 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) [2025-03-04 15:23:53,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:53,315 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-04 15:23:53,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:23:53,315 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:23:53,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:53,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1019577794, now seen corresponding path program 1 times [2025-03-04 15:23:53,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:53,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645136654] [2025-03-04 15:23:53,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:53,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:53,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:23:53,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:23:53,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:53,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:53,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:53,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:53,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645136654] [2025-03-04 15:23:53,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645136654] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:53,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044260210] [2025-03-04 15:23:53,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:53,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:53,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:53,422 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) [2025-03-04 15:23:53,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 15:23:53,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:23:53,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:23:53,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:53,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:53,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:23:53,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:53,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:53,538 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:53,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044260210] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:53,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:23:53,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-04 15:23:53,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123449885] [2025-03-04 15:23:53,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:53,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:23:53,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:53,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:23:53,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 15:23:53,560 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-04 15:23:53,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 132 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 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) [2025-03-04 15:23:53,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:53,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-04 15:23:53,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:54,797 INFO L124 PetriNetUnfolderBase]: 9931/19484 cut-off events. [2025-03-04 15:23:54,797 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2025-03-04 15:23:54,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32790 conditions, 19484 events. 9931/19484 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 923. Compared 179904 event pairs, 6561 based on Foata normal form. 3/15826 useless extension candidates. Maximal degree in co-relation 32717. Up to 13023 conditions per place. [2025-03-04 15:23:54,963 INFO L140 encePairwiseOnDemand]: 115/128 looper letters, 49 selfloop transitions, 17 changer transitions 0/129 dead transitions. [2025-03-04 15:23:54,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 129 transitions, 460 flow [2025-03-04 15:23:54,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:23:54,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:23:54,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 465 transitions. [2025-03-04 15:23:54,969 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.60546875 [2025-03-04 15:23:54,969 INFO L175 Difference]: Start difference. First operand has 119 places, 132 transitions, 340 flow. Second operand 6 states and 465 transitions. [2025-03-04 15:23:54,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 129 transitions, 460 flow [2025-03-04 15:23:54,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 129 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:23:54,973 INFO L231 Difference]: Finished difference. Result has 121 places, 129 transitions, 362 flow [2025-03-04 15:23:54,975 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=121, PETRI_TRANSITIONS=129} [2025-03-04 15:23:54,975 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 3 predicate places. [2025-03-04 15:23:54,975 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 129 transitions, 362 flow [2025-03-04 15:23:54,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 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) [2025-03-04 15:23:54,976 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:54,976 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:54,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:55,177 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 [2025-03-04 15:23:55,177 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:23:55,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:55,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1563114917, now seen corresponding path program 1 times [2025-03-04 15:23:55,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:55,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366622602] [2025-03-04 15:23:55,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:55,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:55,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:23:55,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:23:55,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:55,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:55,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:55,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:55,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366622602] [2025-03-04 15:23:55,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366622602] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:55,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:55,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:55,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187380907] [2025-03-04 15:23:55,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:55,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:23:55,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:55,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:23:55,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:23:55,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-04 15:23:55,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 129 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 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) [2025-03-04 15:23:55,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:55,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-04 15:23:55,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:57,427 INFO L124 PetriNetUnfolderBase]: 21545/42249 cut-off events. [2025-03-04 15:23:57,427 INFO L125 PetriNetUnfolderBase]: For 239/239 co-relation queries the response was YES. [2025-03-04 15:23:57,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71045 conditions, 42249 events. 21545/42249 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 1869. Compared 432123 event pairs, 14202 based on Foata normal form. 240/34466 useless extension candidates. Maximal degree in co-relation 35711. Up to 14229 conditions per place. [2025-03-04 15:23:57,698 INFO L140 encePairwiseOnDemand]: 120/128 looper letters, 108 selfloop transitions, 8 changer transitions 0/180 dead transitions. [2025-03-04 15:23:57,698 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 180 transitions, 732 flow [2025-03-04 15:23:57,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:23:57,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:23:57,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 531 transitions. [2025-03-04 15:23:57,700 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.69140625 [2025-03-04 15:23:57,700 INFO L175 Difference]: Start difference. First operand has 121 places, 129 transitions, 362 flow. Second operand 6 states and 531 transitions. [2025-03-04 15:23:57,700 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 180 transitions, 732 flow [2025-03-04 15:23:57,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 180 transitions, 680 flow, removed 6 selfloop flow, removed 5 redundant places. [2025-03-04 15:23:57,704 INFO L231 Difference]: Finished difference. Result has 124 places, 132 transitions, 369 flow [2025-03-04 15:23:57,704 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=369, PETRI_PLACES=124, PETRI_TRANSITIONS=132} [2025-03-04 15:23:57,704 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 6 predicate places. [2025-03-04 15:23:57,705 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 132 transitions, 369 flow [2025-03-04 15:23:57,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 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) [2025-03-04 15:23:57,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:57,705 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-04 15:23:57,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:23:57,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:23:57,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:57,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1542141323, now seen corresponding path program 1 times [2025-03-04 15:23:57,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:57,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13398646] [2025-03-04 15:23:57,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:57,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:57,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:23:57,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:23:57,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:57,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:57,793 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:57,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:57,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13398646] [2025-03-04 15:23:57,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13398646] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:57,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321825321] [2025-03-04 15:23:57,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:57,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:57,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:57,796 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) [2025-03-04 15:23:57,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 15:23:57,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:23:57,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:23:57,855 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:57,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:57,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:23:57,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:57,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:57,879 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:57,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:57,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321825321] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:57,914 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:57,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-04 15:23:57,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824407986] [2025-03-04 15:23:57,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:57,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 15:23:57,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:57,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 15:23:57,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-04 15:23:57,941 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-04 15:23:57,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 132 transitions, 369 flow. Second operand has 12 states, 12 states have (on average 67.08333333333333) internal successors, (805), 12 states have internal predecessors, (805), 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) [2025-03-04 15:23:57,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:57,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-04 15:23:57,943 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:59,965 INFO L124 PetriNetUnfolderBase]: 19870/38996 cut-off events. [2025-03-04 15:23:59,966 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2025-03-04 15:24:00,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65664 conditions, 38996 events. 19870/38996 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 1742. Compared 395101 event pairs, 13122 based on Foata normal form. 12/31684 useless extension candidates. Maximal degree in co-relation 32897. Up to 26067 conditions per place. [2025-03-04 15:24:00,170 INFO L140 encePairwiseOnDemand]: 115/128 looper letters, 56 selfloop transitions, 39 changer transitions 0/159 dead transitions. [2025-03-04 15:24:00,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 159 transitions, 694 flow [2025-03-04 15:24:00,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 15:24:00,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 15:24:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 762 transitions. [2025-03-04 15:24:00,175 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5953125 [2025-03-04 15:24:00,175 INFO L175 Difference]: Start difference. First operand has 124 places, 132 transitions, 369 flow. Second operand 10 states and 762 transitions. [2025-03-04 15:24:00,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 159 transitions, 694 flow [2025-03-04 15:24:00,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 159 transitions, 686 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-04 15:24:00,181 INFO L231 Difference]: Finished difference. Result has 135 places, 159 transitions, 624 flow [2025-03-04 15:24:00,182 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=624, PETRI_PLACES=135, PETRI_TRANSITIONS=159} [2025-03-04 15:24:00,183 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 17 predicate places. [2025-03-04 15:24:00,184 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 159 transitions, 624 flow [2025-03-04 15:24:00,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 67.08333333333333) internal successors, (805), 12 states have internal predecessors, (805), 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) [2025-03-04 15:24:00,184 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:00,184 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:00,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 15:24:00,389 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,SelfDestructingSolverStorable3 [2025-03-04 15:24:00,389 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:24:00,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:00,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1211923032, now seen corresponding path program 1 times [2025-03-04 15:24:00,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:00,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521402764] [2025-03-04 15:24:00,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:00,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:00,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 15:24:00,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 15:24:00,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:00,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:00,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:00,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:00,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521402764] [2025-03-04 15:24:00,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521402764] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:00,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:00,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:24:00,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763986222] [2025-03-04 15:24:00,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:00,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:00,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:00,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:00,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:00,538 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-04 15:24:00,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 159 transitions, 624 flow. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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) [2025-03-04 15:24:00,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:00,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-04 15:24:00,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:04,650 INFO L124 PetriNetUnfolderBase]: 41670/81500 cut-off events. [2025-03-04 15:24:04,651 INFO L125 PetriNetUnfolderBase]: For 3107/3107 co-relation queries the response was YES. [2025-03-04 15:24:04,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138574 conditions, 81500 events. 41670/81500 cut-off events. For 3107/3107 co-relation queries the response was YES. Maximal size of possible extension queue 3506. Compared 905607 event pairs, 27334 based on Foata normal form. 478/67307 useless extension candidates. Maximal degree in co-relation 138354. Up to 27306 conditions per place. [2025-03-04 15:24:05,179 INFO L140 encePairwiseOnDemand]: 123/128 looper letters, 168 selfloop transitions, 4 changer transitions 0/236 dead transitions. [2025-03-04 15:24:05,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 236 transitions, 1308 flow [2025-03-04 15:24:05,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:24:05,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:24:05,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 391 transitions. [2025-03-04 15:24:05,181 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.763671875 [2025-03-04 15:24:05,181 INFO L175 Difference]: Start difference. First operand has 135 places, 159 transitions, 624 flow. Second operand 4 states and 391 transitions. [2025-03-04 15:24:05,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 236 transitions, 1308 flow [2025-03-04 15:24:05,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 236 transitions, 1244 flow, removed 15 selfloop flow, removed 2 redundant places. [2025-03-04 15:24:05,190 INFO L231 Difference]: Finished difference. Result has 138 places, 160 transitions, 608 flow [2025-03-04 15:24:05,191 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=608, PETRI_PLACES=138, PETRI_TRANSITIONS=160} [2025-03-04 15:24:05,192 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 20 predicate places. [2025-03-04 15:24:05,193 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 160 transitions, 608 flow [2025-03-04 15:24:05,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 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) [2025-03-04 15:24:05,193 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:05,194 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:05,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 15:24:05,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:24:05,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:05,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1086572673, now seen corresponding path program 1 times [2025-03-04 15:24:05,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:05,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601540091] [2025-03-04 15:24:05,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:05,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:05,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:24:05,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:24:05,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:05,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:05,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:05,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601540091] [2025-03-04 15:24:05,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601540091] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:05,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:05,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 15:24:05,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163458750] [2025-03-04 15:24:05,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:05,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:05,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:05,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:05,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:05,324 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-04 15:24:05,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 160 transitions, 608 flow. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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) [2025-03-04 15:24:05,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:05,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-04 15:24:05,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:14,327 INFO L124 PetriNetUnfolderBase]: 86680/168540 cut-off events. [2025-03-04 15:24:14,327 INFO L125 PetriNetUnfolderBase]: For 1066/1066 co-relation queries the response was YES. [2025-03-04 15:24:14,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284443 conditions, 168540 events. 86680/168540 cut-off events. For 1066/1066 co-relation queries the response was YES. Maximal size of possible extension queue 6990. Compared 2026294 event pairs, 57160 based on Foata normal form. 1056/137741 useless extension candidates. Maximal degree in co-relation 284231. Up to 57292 conditions per place. [2025-03-04 15:24:15,437 INFO L140 encePairwiseOnDemand]: 122/128 looper letters, 124 selfloop transitions, 15 changer transitions 0/205 dead transitions. [2025-03-04 15:24:15,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 205 transitions, 982 flow [2025-03-04 15:24:15,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:24:15,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:24:15,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2025-03-04 15:24:15,439 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7109375 [2025-03-04 15:24:15,439 INFO L175 Difference]: Start difference. First operand has 138 places, 160 transitions, 608 flow. Second operand 5 states and 455 transitions. [2025-03-04 15:24:15,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 205 transitions, 982 flow [2025-03-04 15:24:15,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 205 transitions, 980 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-04 15:24:15,443 INFO L231 Difference]: Finished difference. Result has 144 places, 161 transitions, 658 flow [2025-03-04 15:24:15,443 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=658, PETRI_PLACES=144, PETRI_TRANSITIONS=161} [2025-03-04 15:24:15,443 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 26 predicate places. [2025-03-04 15:24:15,443 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 161 transitions, 658 flow [2025-03-04 15:24:15,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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) [2025-03-04 15:24:15,444 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:15,444 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:15,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:24:15,444 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:24:15,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:15,444 INFO L85 PathProgramCache]: Analyzing trace with hash 675986398, now seen corresponding path program 1 times [2025-03-04 15:24:15,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:15,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952762194] [2025-03-04 15:24:15,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:15,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:15,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:24:15,454 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:24:15,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:15,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:15,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:15,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:15,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952762194] [2025-03-04 15:24:15,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952762194] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:15,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:15,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:15,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029400829] [2025-03-04 15:24:15,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:15,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:24:15,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:15,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:24:15,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:24:15,527 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-04 15:24:15,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 161 transitions, 658 flow. Second operand has 4 states, 4 states have (on average 72.25) internal successors, (289), 4 states have internal predecessors, (289), 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) [2025-03-04 15:24:15,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:15,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-04 15:24:15,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand