./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 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/goblint-regression/28-race_reach_90-arrayloop2_racing.i -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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:39:48,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:39:48,071 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:39:48,077 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:39:48,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:39:48,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:39:48,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:39:48,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:39:48,092 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:39:48,092 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:39:48,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:39:48,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:39:48,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:39:48,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:39:48,092 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:39:48,092 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:39:48,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:39:48,093 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:39:48,093 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:39:48,093 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:39:48,093 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:39:48,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:39:48,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:39:48,093 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:39:48,093 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:39:48,093 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:39:48,093 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:39:48,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:39:48,094 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:39:48,094 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:39:48,094 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:39:48,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:39:48,094 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:39:48,094 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:39:48,094 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:39:48,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:39:48,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:39:48,095 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:39:48,095 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:39:48,095 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:39:48,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:39:48,095 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:39:48,095 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:39:48,095 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:39:48,096 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:39:48,096 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 -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2025-03-17 19:39:48,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:39:48,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:39:48,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:39:48,326 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:39:48,326 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:39:48,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-03-17 19:39:49,479 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73cd8f2bc/4d22619f9fbd42ba91195ef0346e1562/FLAG00bf0a3f8 [2025-03-17 19:39:49,782 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:39:49,783 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-03-17 19:39:49,802 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73cd8f2bc/4d22619f9fbd42ba91195ef0346e1562/FLAG00bf0a3f8 [2025-03-17 19:39:49,822 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73cd8f2bc/4d22619f9fbd42ba91195ef0346e1562 [2025-03-17 19:39:49,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:39:49,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:39:49,826 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:39:49,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:39:49,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:39:49,831 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:39:49" (1/1) ... [2025-03-17 19:39:49,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aeeef48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:49, skipping insertion in model container [2025-03-17 19:39:49,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:39:49" (1/1) ... [2025-03-17 19:39:49,868 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:39:50,140 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-17 19:39:50,141 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-17 19:39:50,141 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-17 19:39:50,142 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-17 19:39:50,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:39:50,205 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:39:50,233 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-17 19:39:50,233 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-17 19:39:50,233 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-17 19:39:50,233 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-17 19:39:50,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:39:50,303 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:39:50,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50 WrapperNode [2025-03-17 19:39:50,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:39:50,304 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:39:50,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:39:50,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:39:50,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,362 INFO L138 Inliner]: procedures = 280, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 388 [2025-03-17 19:39:50,363 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:39:50,364 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:39:50,364 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:39:50,364 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:39:50,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,377 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,397 INFO L175 MemorySlicer]: Split 105 memory accesses to 5 slices as follows [2, 2, 94, 5, 2]. 90 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 0, 70, 5, 0]. The 15 writes are split as follows [0, 1, 13, 0, 1]. [2025-03-17 19:39:50,397 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,410 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,413 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:39:50,418 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:39:50,418 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:39:50,418 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:39:50,419 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (1/1) ... [2025-03-17 19:39:50,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:39:50,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:39:50,447 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) [2025-03-17 19:39:50,452 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 [2025-03-17 19:39:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 19:39:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 19:39:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 19:39:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 19:39:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-17 19:39:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-17 19:39:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-03-17 19:39:50,467 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-03-17 19:39:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 19:39:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-17 19:39:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-03-17 19:39:50,468 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:39:50,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:39:50,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 19:39:50,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 19:39:50,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-17 19:39:50,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:39:50,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:39:50,471 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:39:50,605 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:39:50,607 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:39:51,071 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-03-17 19:39:51,071 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2025-03-17 19:39:51,071 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-03-17 19:39:51,071 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-3: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2025-03-17 19:39:51,072 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:39:51,072 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:39:51,454 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:39:51,455 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:39:51,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:39:51 BoogieIcfgContainer [2025-03-17 19:39:51,455 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:39:51,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:39:51,457 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:39:51,460 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:39:51,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:39:49" (1/3) ... [2025-03-17 19:39:51,460 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4aea6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:39:51, skipping insertion in model container [2025-03-17 19:39:51,460 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:39:50" (2/3) ... [2025-03-17 19:39:51,461 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b4aea6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:39:51, skipping insertion in model container [2025-03-17 19:39:51,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:39:51" (3/3) ... [2025-03-17 19:39:51,462 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2025-03-17 19:39:51,472 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:39:51,474 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_90-arrayloop2_racing.i that has 3 procedures, 132 locations, 1 initial locations, 18 loop locations, and 30 error locations. [2025-03-17 19:39:51,474 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:39:51,552 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-17 19:39:51,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 165 transitions, 350 flow [2025-03-17 19:39:51,653 INFO L124 PetriNetUnfolderBase]: 49/276 cut-off events. [2025-03-17 19:39:51,654 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-17 19:39:51,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 276 events. 49/276 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1402 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 154. Up to 8 conditions per place. [2025-03-17 19:39:51,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 165 transitions, 350 flow [2025-03-17 19:39:51,665 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 138 places, 165 transitions, 350 flow [2025-03-17 19:39:51,670 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:39:51,677 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;@14f5521c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:39:51,678 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2025-03-17 19:39:51,687 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:39:51,687 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-03-17 19:39:51,687 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:39:51,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:39:51,688 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-17 19:39:51,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-17 19:39:51,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:39:51,693 INFO L85 PathProgramCache]: Analyzing trace with hash 29567838, now seen corresponding path program 1 times [2025-03-17 19:39:51,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:39:51,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001021497] [2025-03-17 19:39:51,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:39:51,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:39:51,774 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 19:39:51,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 19:39:51,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:51,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-17 19:39:51,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [9223150] [2025-03-17 19:39:51,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:39:51,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:39:51,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:39:51,819 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) [2025-03-17 19:39:51,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 19:39:51,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 19:39:51,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 19:39:51,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:51,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:39:51,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 19:39:51,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:39:51,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:39:51,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:39:51,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:39:51,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001021497] [2025-03-17 19:39:51,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-17 19:39:51,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9223150] [2025-03-17 19:39:51,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9223150] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:39:51,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:39:51,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 19:39:51,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415350090] [2025-03-17 19:39:51,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:39:51,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:39:51,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:39:51,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:39:51,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:39:51,998 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 165 [2025-03-17 19:39:52,001 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 165 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2025-03-17 19:39:52,001 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:39:52,001 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 165 [2025-03-17 19:39:52,004 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:39:53,735 INFO L124 PetriNetUnfolderBase]: 7865/17188 cut-off events. [2025-03-17 19:39:53,735 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2025-03-17 19:39:53,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28981 conditions, 17188 events. 7865/17188 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 156261 event pairs, 6700 based on Foata normal form. 1798/15744 useless extension candidates. Maximal degree in co-relation 27631. Up to 11651 conditions per place. [2025-03-17 19:39:53,907 INFO L140 encePairwiseOnDemand]: 140/165 looper letters, 74 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2025-03-17 19:39:53,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 150 transitions, 472 flow [2025-03-17 19:39:53,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:39:53,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:39:53,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 321 transitions. [2025-03-17 19:39:53,920 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6484848484848484 [2025-03-17 19:39:53,921 INFO L175 Difference]: Start difference. First operand has 138 places, 165 transitions, 350 flow. Second operand 3 states and 321 transitions. [2025-03-17 19:39:53,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 150 transitions, 472 flow [2025-03-17 19:39:53,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 150 transitions, 472 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:39:53,929 INFO L231 Difference]: Finished difference. Result has 141 places, 146 transitions, 326 flow [2025-03-17 19:39:53,930 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=141, PETRI_TRANSITIONS=146} [2025-03-17 19:39:53,932 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 3 predicate places. [2025-03-17 19:39:53,933 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 146 transitions, 326 flow [2025-03-17 19:39:53,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2025-03-17 19:39:53,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:39:53,933 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-17 19:39:53,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 19:39:54,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-03-17 19:39:54,135 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-17 19:39:54,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:39:54,136 INFO L85 PathProgramCache]: Analyzing trace with hash 29567896, now seen corresponding path program 1 times [2025-03-17 19:39:54,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:39:54,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105103880] [2025-03-17 19:39:54,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:39:54,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:39:54,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-17 19:39:54,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-17 19:39:54,161 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:54,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:39:54,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:39:54,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:39:54,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105103880] [2025-03-17 19:39:54,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105103880] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:39:54,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:39:54,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:39:54,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745315431] [2025-03-17 19:39:54,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:39:54,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:39:54,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:39:54,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:39:54,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:39:54,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 165 [2025-03-17 19:39:54,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 146 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2025-03-17 19:39:54,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:39:54,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 165 [2025-03-17 19:39:54,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:39:55,601 INFO L124 PetriNetUnfolderBase]: 7865/17202 cut-off events. [2025-03-17 19:39:55,601 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2025-03-17 19:39:55,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29008 conditions, 17202 events. 7865/17202 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 156405 event pairs, 6700 based on Foata normal form. 4/13964 useless extension candidates. Maximal degree in co-relation 28970. Up to 11656 conditions per place. [2025-03-17 19:39:55,671 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 72 selfloop transitions, 2 changer transitions 0/148 dead transitions. [2025-03-17 19:39:55,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 148 transitions, 478 flow [2025-03-17 19:39:55,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:39:55,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:39:55,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2025-03-17 19:39:55,675 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.602020202020202 [2025-03-17 19:39:55,675 INFO L175 Difference]: Start difference. First operand has 141 places, 146 transitions, 326 flow. Second operand 3 states and 298 transitions. [2025-03-17 19:39:55,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 148 transitions, 478 flow [2025-03-17 19:39:55,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 148 transitions, 476 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:39:55,678 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 340 flow [2025-03-17 19:39:55,679 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2025-03-17 19:39:55,679 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 5 predicate places. [2025-03-17 19:39:55,679 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 340 flow [2025-03-17 19:39:55,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2025-03-17 19:39:55,680 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:39:55,680 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-17 19:39:55,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:39:55,680 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-17 19:39:55,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:39:55,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1650052500, now seen corresponding path program 1 times [2025-03-17 19:39:55,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:39:55,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724912144] [2025-03-17 19:39:55,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:39:55,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:39:55,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:39:55,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:39:55,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:55,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:39:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:39:55,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:39:55,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724912144] [2025-03-17 19:39:55,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724912144] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:39:55,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:39:55,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:39:55,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139379293] [2025-03-17 19:39:55,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:39:55,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:39:55,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:39:55,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:39:55,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:39:55,870 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 165 [2025-03-17 19:39:55,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 340 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2025-03-17 19:39:55,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:39:55,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 165 [2025-03-17 19:39:55,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:39:56,994 INFO L124 PetriNetUnfolderBase]: 7865/17198 cut-off events. [2025-03-17 19:39:56,994 INFO L125 PetriNetUnfolderBase]: For 266/266 co-relation queries the response was YES. [2025-03-17 19:39:57,012 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29020 conditions, 17198 events. 7865/17198 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 156334 event pairs, 6700 based on Foata normal form. 4/13964 useless extension candidates. Maximal degree in co-relation 28957. Up to 11660 conditions per place. [2025-03-17 19:39:57,058 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 73 selfloop transitions, 3 changer transitions 0/148 dead transitions. [2025-03-17 19:39:57,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 148 transitions, 494 flow [2025-03-17 19:39:57,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:39:57,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:39:57,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 365 transitions. [2025-03-17 19:39:57,061 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.553030303030303 [2025-03-17 19:39:57,061 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 340 flow. Second operand 4 states and 365 transitions. [2025-03-17 19:39:57,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 148 transitions, 494 flow [2025-03-17 19:39:57,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 148 transitions, 492 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:39:57,066 INFO L231 Difference]: Finished difference. Result has 147 places, 148 transitions, 356 flow [2025-03-17 19:39:57,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=356, PETRI_PLACES=147, PETRI_TRANSITIONS=148} [2025-03-17 19:39:57,069 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 9 predicate places. [2025-03-17 19:39:57,069 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 148 transitions, 356 flow [2025-03-17 19:39:57,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2025-03-17 19:39:57,069 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:39:57,069 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:39:57,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:39:57,069 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-17 19:39:57,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:39:57,070 INFO L85 PathProgramCache]: Analyzing trace with hash -812455227, now seen corresponding path program 1 times [2025-03-17 19:39:57,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:39:57,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726362007] [2025-03-17 19:39:57,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:39:57,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:39:57,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 19:39:57,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 19:39:57,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:57,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:39:57,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:39:57,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:39:57,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726362007] [2025-03-17 19:39:57,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726362007] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:39:57,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294306444] [2025-03-17 19:39:57,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:39:57,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:39:57,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:39:57,224 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) [2025-03-17 19:39:57,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 19:39:57,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 19:39:57,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 19:39:57,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:57,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:39:57,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 19:39:57,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:39:57,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:39:57,371 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:39:57,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:39:57,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294306444] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:39:57,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:39:57,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-17 19:39:57,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823115236] [2025-03-17 19:39:57,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:39:57,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 19:39:57,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:39:57,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 19:39:57,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-17 19:39:57,436 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 165 [2025-03-17 19:39:57,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 148 transitions, 356 flow. Second operand has 10 states, 10 states have (on average 72.5) internal successors, (725), 10 states have internal predecessors, (725), 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) [2025-03-17 19:39:57,437 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:39:57,437 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 165 [2025-03-17 19:39:57,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:39:58,861 INFO L124 PetriNetUnfolderBase]: 7865/17214 cut-off events. [2025-03-17 19:39:58,861 INFO L125 PetriNetUnfolderBase]: For 292/292 co-relation queries the response was YES. [2025-03-17 19:39:58,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29078 conditions, 17214 events. 7865/17214 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 527. Compared 156414 event pairs, 6700 based on Foata normal form. 6/13982 useless extension candidates. Maximal degree in co-relation 28976. Up to 11650 conditions per place. [2025-03-17 19:39:58,954 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 76 selfloop transitions, 9 changer transitions 0/156 dead transitions. [2025-03-17 19:39:58,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 156 transitions, 556 flow [2025-03-17 19:39:58,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-17 19:39:58,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-17 19:39:58,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 726 transitions. [2025-03-17 19:39:58,960 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4888888888888889 [2025-03-17 19:39:58,960 INFO L175 Difference]: Start difference. First operand has 147 places, 148 transitions, 356 flow. Second operand 9 states and 726 transitions. [2025-03-17 19:39:58,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 156 transitions, 556 flow [2025-03-17 19:39:58,962 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 156 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:39:58,964 INFO L231 Difference]: Finished difference. Result has 157 places, 152 transitions, 406 flow [2025-03-17 19:39:58,964 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=406, PETRI_PLACES=157, PETRI_TRANSITIONS=152} [2025-03-17 19:39:58,965 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 19 predicate places. [2025-03-17 19:39:58,965 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 152 transitions, 406 flow [2025-03-17 19:39:58,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.5) internal successors, (725), 10 states have internal predecessors, (725), 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) [2025-03-17 19:39:58,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:39:58,965 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-03-17 19:39:58,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 19:39:59,166 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 [2025-03-17 19:39:59,166 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-17 19:39:59,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:39:59,167 INFO L85 PathProgramCache]: Analyzing trace with hash 914545241, now seen corresponding path program 1 times [2025-03-17 19:39:59,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:39:59,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683489104] [2025-03-17 19:39:59,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:39:59,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:39:59,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:39:59,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:39:59,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:59,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:39:59,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:39:59,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:39:59,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683489104] [2025-03-17 19:39:59,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683489104] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:39:59,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982493290] [2025-03-17 19:39:59,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:39:59,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:39:59,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:39:59,372 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) [2025-03-17 19:39:59,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 19:39:59,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:39:59,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:39:59,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:59,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:39:59,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:39:59,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:39:59,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:39:59,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:39:59,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982493290] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:39:59,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:39:59,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-17 19:39:59,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909409588] [2025-03-17 19:39:59,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:39:59,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:39:59,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:39:59,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:39:59,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:39:59,575 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 165 [2025-03-17 19:39:59,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 152 transitions, 406 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2025-03-17 19:39:59,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:39:59,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 165 [2025-03-17 19:39:59,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:00,707 INFO L124 PetriNetUnfolderBase]: 7865/17210 cut-off events. [2025-03-17 19:40:00,707 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2025-03-17 19:40:00,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29095 conditions, 17210 events. 7865/17210 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 156327 event pairs, 6700 based on Foata normal form. 4/13976 useless extension candidates. Maximal degree in co-relation 28993. Up to 11648 conditions per place. [2025-03-17 19:40:00,779 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 69 selfloop transitions, 8 changer transitions 0/150 dead transitions. [2025-03-17 19:40:00,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 150 transitions, 546 flow [2025-03-17 19:40:00,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:40:00,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:40:00,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2025-03-17 19:40:00,781 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5121212121212121 [2025-03-17 19:40:00,781 INFO L175 Difference]: Start difference. First operand has 157 places, 152 transitions, 406 flow. Second operand 6 states and 507 transitions. [2025-03-17 19:40:00,781 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 150 transitions, 546 flow [2025-03-17 19:40:00,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 150 transitions, 538 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-17 19:40:00,785 INFO L231 Difference]: Finished difference. Result has 157 places, 150 transitions, 400 flow [2025-03-17 19:40:00,785 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=400, PETRI_PLACES=157, PETRI_TRANSITIONS=150} [2025-03-17 19:40:00,785 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 19 predicate places. [2025-03-17 19:40:00,786 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 150 transitions, 400 flow [2025-03-17 19:40:00,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2025-03-17 19:40:00,786 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:00,786 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2025-03-17 19:40:00,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 19:40:00,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:40:00,987 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-17 19:40:00,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:00,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1199617629, now seen corresponding path program 1 times [2025-03-17 19:40:00,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:00,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875763465] [2025-03-17 19:40:00,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:00,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:01,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:40:01,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:40:01,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:01,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:01,119 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-17 19:40:01,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:01,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875763465] [2025-03-17 19:40:01,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875763465] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:40:01,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:40:01,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:40:01,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146384119] [2025-03-17 19:40:01,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:40:01,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:40:01,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:01,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:40:01,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:40:01,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 165 [2025-03-17 19:40:01,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 150 transitions, 400 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2025-03-17 19:40:01,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:01,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 165 [2025-03-17 19:40:01,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:02,030 INFO L124 PetriNetUnfolderBase]: 7865/17208 cut-off events. [2025-03-17 19:40:02,031 INFO L125 PetriNetUnfolderBase]: For 356/356 co-relation queries the response was YES. [2025-03-17 19:40:02,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29100 conditions, 17208 events. 7865/17208 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 156290 event pairs, 6700 based on Foata normal form. 2/13972 useless extension candidates. Maximal degree in co-relation 28999. Up to 11654 conditions per place. [2025-03-17 19:40:02,097 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 68 selfloop transitions, 9 changer transitions 0/150 dead transitions. [2025-03-17 19:40:02,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 150 transitions, 552 flow [2025-03-17 19:40:02,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:40:02,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:40:02,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2025-03-17 19:40:02,099 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5515151515151515 [2025-03-17 19:40:02,099 INFO L175 Difference]: Start difference. First operand has 157 places, 150 transitions, 400 flow. Second operand 4 states and 364 transitions. [2025-03-17 19:40:02,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 150 transitions, 552 flow [2025-03-17 19:40:02,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 150 transitions, 536 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-03-17 19:40:02,102 INFO L231 Difference]: Finished difference. Result has 154 places, 150 transitions, 408 flow [2025-03-17 19:40:02,102 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=408, PETRI_PLACES=154, PETRI_TRANSITIONS=150} [2025-03-17 19:40:02,102 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 16 predicate places. [2025-03-17 19:40:02,103 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 150 transitions, 408 flow [2025-03-17 19:40:02,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2025-03-17 19:40:02,103 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:02,103 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-03-17 19:40:02,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:40:02,103 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-17 19:40:02,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:02,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1781336741, now seen corresponding path program 2 times [2025-03-17 19:40:02,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:02,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232479611] [2025-03-17 19:40:02,104 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:40:02,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:02,133 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-03-17 19:40:02,136 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 19 statements. [2025-03-17 19:40:02,136 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:40:02,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:02,163 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-17 19:40:02,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:02,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232479611] [2025-03-17 19:40:02,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232479611] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:40:02,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:40:02,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:40:02,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490438704] [2025-03-17 19:40:02,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:40:02,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:40:02,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:02,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:40:02,164 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:40:02,171 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 165 [2025-03-17 19:40:02,172 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 150 transitions, 408 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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) [2025-03-17 19:40:02,172 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:02,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 165 [2025-03-17 19:40:02,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:03,141 INFO L124 PetriNetUnfolderBase]: 7865/17206 cut-off events. [2025-03-17 19:40:03,141 INFO L125 PetriNetUnfolderBase]: For 384/384 co-relation queries the response was YES. [2025-03-17 19:40:03,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29107 conditions, 17206 events. 7865/17206 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 156360 event pairs, 6700 based on Foata normal form. 2/13972 useless extension candidates. Maximal degree in co-relation 28981. Up to 11659 conditions per place. [2025-03-17 19:40:03,202 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 83 selfloop transitions, 3 changer transitions 0/158 dead transitions. [2025-03-17 19:40:03,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 158 transitions, 652 flow [2025-03-17 19:40:03,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:40:03,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:40:03,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 368 transitions. [2025-03-17 19:40:03,204 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5575757575757576 [2025-03-17 19:40:03,204 INFO L175 Difference]: Start difference. First operand has 154 places, 150 transitions, 408 flow. Second operand 4 states and 368 transitions. [2025-03-17 19:40:03,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 158 transitions, 652 flow [2025-03-17 19:40:03,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 158 transitions, 628 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-17 19:40:03,207 INFO L231 Difference]: Finished difference. Result has 157 places, 151 transitions, 419 flow [2025-03-17 19:40:03,207 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=419, PETRI_PLACES=157, PETRI_TRANSITIONS=151} [2025-03-17 19:40:03,208 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 19 predicate places. [2025-03-17 19:40:03,208 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 151 transitions, 419 flow [2025-03-17 19:40:03,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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) [2025-03-17 19:40:03,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:03,208 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:40:03,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 19:40:03,208 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-17 19:40:03,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:03,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2060393139, now seen corresponding path program 1 times [2025-03-17 19:40:03,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:03,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810594619] [2025-03-17 19:40:03,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:03,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:03,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-17 19:40:03,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 19:40:03,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:03,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:03,383 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-17 19:40:03,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:03,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810594619] [2025-03-17 19:40:03,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810594619] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:40:03,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132602502] [2025-03-17 19:40:03,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:03,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:40:03,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:40:03,386 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) [2025-03-17 19:40:03,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 19:40:03,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-17 19:40:03,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-17 19:40:03,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:03,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:03,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 19:40:03,582 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:40:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:03,651 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:40:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:03,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132602502] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:40:03,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:40:03,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2025-03-17 19:40:03,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889247277] [2025-03-17 19:40:03,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:40:03,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-17 19:40:03,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:03,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-17 19:40:03,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2025-03-17 19:40:03,809 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 165 [2025-03-17 19:40:03,810 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 151 transitions, 419 flow. Second operand has 19 states, 19 states have (on average 70.84210526315789) internal successors, (1346), 19 states have internal predecessors, (1346), 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) [2025-03-17 19:40:03,810 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:03,810 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 165 [2025-03-17 19:40:03,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:06,439 INFO L124 PetriNetUnfolderBase]: 7870/17308 cut-off events. [2025-03-17 19:40:06,440 INFO L125 PetriNetUnfolderBase]: For 631/631 co-relation queries the response was YES. [2025-03-17 19:40:06,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29466 conditions, 17308 events. 7870/17308 cut-off events. For 631/631 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 156910 event pairs, 6700 based on Foata normal form. 13/14085 useless extension candidates. Maximal degree in co-relation 29312. Up to 11649 conditions per place. [2025-03-17 19:40:06,551 INFO L140 encePairwiseOnDemand]: 156/165 looper letters, 112 selfloop transitions, 55 changer transitions 0/236 dead transitions. [2025-03-17 19:40:06,551 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 236 transitions, 1356 flow [2025-03-17 19:40:06,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-03-17 19:40:06,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2025-03-17 19:40:06,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3216 transitions. [2025-03-17 19:40:06,559 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44297520661157025 [2025-03-17 19:40:06,559 INFO L175 Difference]: Start difference. First operand has 157 places, 151 transitions, 419 flow. Second operand 44 states and 3216 transitions. [2025-03-17 19:40:06,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 236 transitions, 1356 flow [2025-03-17 19:40:06,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 236 transitions, 1352 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:40:06,564 INFO L231 Difference]: Finished difference. Result has 211 places, 199 transitions, 974 flow [2025-03-17 19:40:06,565 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=974, PETRI_PLACES=211, PETRI_TRANSITIONS=199} [2025-03-17 19:40:06,565 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 73 predicate places. [2025-03-17 19:40:06,566 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 199 transitions, 974 flow [2025-03-17 19:40:06,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 70.84210526315789) internal successors, (1346), 19 states have internal predecessors, (1346), 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) [2025-03-17 19:40:06,566 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:06,567 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-03-17 19:40:06,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 19:40:06,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:40:06,767 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-17 19:40:06,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:06,768 INFO L85 PathProgramCache]: Analyzing trace with hash 107816569, now seen corresponding path program 1 times [2025-03-17 19:40:06,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:06,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545362228] [2025-03-17 19:40:06,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:06,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:06,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 19:40:06,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 19:40:06,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:06,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:07,375 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:40:07,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:07,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545362228] [2025-03-17 19:40:07,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545362228] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:40:07,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593601278] [2025-03-17 19:40:07,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:07,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:40:07,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:40:07,377 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:40:07,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 19:40:07,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 19:40:07,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 19:40:07,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:07,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:07,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-17 19:40:07,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:40:07,810 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:40:07,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:40:08,019 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:40:08,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593601278] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:40:08,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:40:08,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-03-17 19:40:08,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081776405] [2025-03-17 19:40:08,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:40:08,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-17 19:40:08,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:08,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-17 19:40:08,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-03-17 19:40:08,123 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 165 [2025-03-17 19:40:08,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 199 transitions, 974 flow. Second operand has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 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) [2025-03-17 19:40:08,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:08,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 165 [2025-03-17 19:40:08,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:11,218 INFO L124 PetriNetUnfolderBase]: 7866/17460 cut-off events. [2025-03-17 19:40:11,218 INFO L125 PetriNetUnfolderBase]: For 2934/2934 co-relation queries the response was YES. [2025-03-17 19:40:11,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30357 conditions, 17460 events. 7866/17460 cut-off events. For 2934/2934 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 157424 event pairs, 6700 based on Foata normal form. 24/14248 useless extension candidates. Maximal degree in co-relation 29982. Up to 11653 conditions per place. [2025-03-17 19:40:11,401 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 145 selfloop transitions, 93 changer transitions 0/309 dead transitions. [2025-03-17 19:40:11,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 309 transitions, 2682 flow [2025-03-17 19:40:11,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-17 19:40:11,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-17 19:40:11,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2350 transitions. [2025-03-17 19:40:11,405 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45943304007820135 [2025-03-17 19:40:11,405 INFO L175 Difference]: Start difference. First operand has 211 places, 199 transitions, 974 flow. Second operand 31 states and 2350 transitions. [2025-03-17 19:40:11,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 309 transitions, 2682 flow [2025-03-17 19:40:11,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 309 transitions, 2574 flow, removed 43 selfloop flow, removed 5 redundant places. [2025-03-17 19:40:11,418 INFO L231 Difference]: Finished difference. Result has 245 places, 250 transitions, 1711 flow [2025-03-17 19:40:11,418 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=914, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1711, PETRI_PLACES=245, PETRI_TRANSITIONS=250} [2025-03-17 19:40:11,419 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 107 predicate places. [2025-03-17 19:40:11,419 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 250 transitions, 1711 flow [2025-03-17 19:40:11,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 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) [2025-03-17 19:40:11,420 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:11,420 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-03-17 19:40:11,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 19:40:11,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:40:11,624 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-17 19:40:11,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:11,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1827423993, now seen corresponding path program 2 times [2025-03-17 19:40:11,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:11,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999592475] [2025-03-17 19:40:11,625 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:40:11,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:11,756 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-03-17 19:40:11,821 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-03-17 19:40:11,821 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:40:11,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:13,044 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:40:13,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:13,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999592475] [2025-03-17 19:40:13,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999592475] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:40:13,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774859028] [2025-03-17 19:40:13,044 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:40:13,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:40:13,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:40:13,047 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:40:13,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 19:40:13,342 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-03-17 19:40:13,506 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-03-17 19:40:13,506 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:40:13,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:13,514 INFO L256 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-17 19:40:13,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:40:13,617 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:40:13,618 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:40:14,239 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:40:14,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774859028] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:40:14,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:40:14,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2025-03-17 19:40:14,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754316724] [2025-03-17 19:40:14,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:40:14,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-03-17 19:40:14,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:14,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-03-17 19:40:14,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2025-03-17 19:40:14,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 165 [2025-03-17 19:40:14,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 250 transitions, 1711 flow. Second operand has 63 states, 63 states have (on average 72.61904761904762) internal successors, (4575), 63 states have internal predecessors, (4575), 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) [2025-03-17 19:40:14,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:14,431 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 165 [2025-03-17 19:40:14,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:19,887 INFO L124 PetriNetUnfolderBase]: 7866/17745 cut-off events. [2025-03-17 19:40:19,887 INFO L125 PetriNetUnfolderBase]: For 9917/9917 co-relation queries the response was YES. [2025-03-17 19:40:19,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32001 conditions, 17745 events. 7866/17745 cut-off events. For 9917/9917 co-relation queries the response was YES. Maximal size of possible extension queue 528. Compared 157589 event pairs, 6700 based on Foata normal form. 45/14554 useless extension candidates. Maximal degree in co-relation 31205. Up to 11653 conditions per place. [2025-03-17 19:40:19,985 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 235 selfloop transitions, 183 changer transitions 0/489 dead transitions. [2025-03-17 19:40:19,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 489 transitions, 5621 flow [2025-03-17 19:40:19,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-03-17 19:40:19,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-03-17 19:40:19,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 4562 transitions. [2025-03-17 19:40:19,990 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45325384997516144 [2025-03-17 19:40:19,990 INFO L175 Difference]: Start difference. First operand has 245 places, 250 transitions, 1711 flow. Second operand 61 states and 4562 transitions. [2025-03-17 19:40:19,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 489 transitions, 5621 flow [2025-03-17 19:40:20,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 489 transitions, 5549 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-03-17 19:40:20,016 INFO L231 Difference]: Finished difference. Result has 309 places, 343 transitions, 3381 flow [2025-03-17 19:40:20,017 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1639, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3381, PETRI_PLACES=309, PETRI_TRANSITIONS=343} [2025-03-17 19:40:20,017 INFO L279 CegarLoopForPetriNet]: 138 programPoint places, 171 predicate places. [2025-03-17 19:40:20,017 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 343 transitions, 3381 flow [2025-03-17 19:40:20,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 72.61904761904762) internal successors, (4575), 63 states have internal predecessors, (4575), 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) [2025-03-17 19:40:20,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:20,019 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-03-17 19:40:20,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 19:40:20,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:40:20,220 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-03-17 19:40:20,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:20,221 INFO L85 PathProgramCache]: Analyzing trace with hash 50175174, now seen corresponding path program 3 times [2025-03-17 19:40:20,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:20,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704306593] [2025-03-17 19:40:20,221 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 19:40:20,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:20,436 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes.