./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 15:23:35,663 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:23:35,713 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:23:35,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:23:35,723 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:23:35,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:23:35,743 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:23:35,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:23:35,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:23:35,743 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:23:35,744 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:23:35,744 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:23:35,744 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:23:35,744 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:23:35,745 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:35,745 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:23:35,745 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:23:35,745 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 -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2025-03-04 15:23:35,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:23:35,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:23:35,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:23:35,972 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:23:35,973 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:23:35,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2025-03-04 15:23:37,120 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46535b97/4a7404a060e14fa7b5efc4916f0ae918/FLAGd9b4ecaef [2025-03-04 15:23:37,431 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:23:37,432 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2025-03-04 15:23:37,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46535b97/4a7404a060e14fa7b5efc4916f0ae918/FLAGd9b4ecaef [2025-03-04 15:23:37,677 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d46535b97/4a7404a060e14fa7b5efc4916f0ae918 [2025-03-04 15:23:37,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:23:37,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:23:37,681 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:37,681 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:23:37,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:23:37,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:37" (1/1) ... [2025-03-04 15:23:37,684 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67682a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:37, skipping insertion in model container [2025-03-04 15:23:37,684 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:37" (1/1) ... [2025-03-04 15:23:37,712 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:23:38,039 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:38,040 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:38,040 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:38,040 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:38,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:38,081 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:23:38,109 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:38,109 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:38,109 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:38,110 WARN L1731 CHandler]: Possible shadowing of function new [2025-03-04 15:23:38,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:38,170 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:23:38,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38 WrapperNode [2025-03-04 15:23:38,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:38,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:38,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:23:38,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:23:38,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,218 INFO L138 Inliner]: procedures = 281, calls = 126, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 300 [2025-03-04 15:23:38,218 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:38,219 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:23:38,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:23:38,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:23:38,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,247 INFO L175 MemorySlicer]: Split 98 memory accesses to 4 slices as follows [2, 5, 89, 2]. 91 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 5, 70, 0]. The 12 writes are split as follows [0, 0, 11, 1]. [2025-03-04 15:23:38,248 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,248 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,256 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,260 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:23:38,263 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:23:38,263 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:23:38,263 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:23:38,264 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (1/1) ... [2025-03-04 15:23:38,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:38,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:38,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 15:23:38,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 15:23:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 15:23:38,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-04 15:23:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-04 15:23:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-04 15:23:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-04 15:23:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 15:23:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-04 15:23:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-04 15:23:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-04 15:23:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-03-04 15:23:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-04 15:23:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:23:38,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 15:23:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-04 15:23:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-04 15:23:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:23:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 15:23:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-04 15:23:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-04 15:23:38,320 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-04 15:23:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 15:23:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:23:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-04 15:23:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-04 15:23:38,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-04 15:23:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-04 15:23:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-04 15:23:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-04 15:23:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:23:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:23:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-04 15:23:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-04 15:23:38,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:23:38,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:23:38,323 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:23:38,472 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:23:38,473 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:23:38,826 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-03-04 15:23:38,827 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-03-04 15:23:38,902 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:23:38,902 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:23:39,315 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:23:39,316 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:23:39,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:39 BoogieIcfgContainer [2025-03-04 15:23:39,316 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:23:39,319 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:23:39,320 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:23:39,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:23:39,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:23:37" (1/3) ... [2025-03-04 15:23:39,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ae0d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:39, skipping insertion in model container [2025-03-04 15:23:39,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:38" (2/3) ... [2025-03-04 15:23:39,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ae0d71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:39, skipping insertion in model container [2025-03-04 15:23:39,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:39" (3/3) ... [2025-03-04 15:23:39,325 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2025-03-04 15:23:39,338 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:23:39,340 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_93-evilcollapse_racefree.i that has 2 procedures, 70 locations, 1 initial locations, 10 loop locations, and 16 error locations. [2025-03-04 15:23:39,340 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:23:39,393 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 15:23:39,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 86 transitions, 179 flow [2025-03-04 15:23:39,461 INFO L124 PetriNetUnfolderBase]: 16/90 cut-off events. [2025-03-04 15:23:39,462 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 15:23:39,464 INFO L83 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 90 events. 16/90 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 282 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 61. Up to 4 conditions per place. [2025-03-04 15:23:39,465 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 86 transitions, 179 flow [2025-03-04 15:23:39,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 85 transitions, 177 flow [2025-03-04 15:23:39,475 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:23:39,485 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;@788a49e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:23:39,485 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-03-04 15:23:39,526 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:23:39,526 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2025-03-04 15:23:39,526 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:23:39,526 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:39,527 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 15:23:39,527 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:39,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:39,532 INFO L85 PathProgramCache]: Analyzing trace with hash 23244085, now seen corresponding path program 1 times [2025-03-04 15:23:39,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:39,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781447983] [2025-03-04 15:23:39,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:39,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:39,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:39,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:39,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:39,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 15:23:39,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235696156] [2025-03-04 15:23:39,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:39,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:39,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:39,673 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 15:23:39,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 15:23:39,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:39,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:39,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:39,789 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:39,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 15:23:39,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:39,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:39,814 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:39,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:39,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781447983] [2025-03-04 15:23:39,815 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 15:23:39,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235696156] [2025-03-04 15:23:39,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235696156] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:39,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:39,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 15:23:39,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402788194] [2025-03-04 15:23:39,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:39,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:23:39,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:39,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:23:39,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:23:39,854 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 86 [2025-03-04 15:23:39,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 85 transitions, 177 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:39,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:39,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 86 [2025-03-04 15:23:39,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:40,077 INFO L124 PetriNetUnfolderBase]: 121/402 cut-off events. [2025-03-04 15:23:40,077 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 15:23:40,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 402 events. 121/402 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1891 event pairs, 100 based on Foata normal form. 31/350 useless extension candidates. Maximal degree in co-relation 598. Up to 253 conditions per place. [2025-03-04 15:23:40,083 INFO L140 encePairwiseOnDemand]: 71/86 looper letters, 41 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2025-03-04 15:23:40,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 80 transitions, 253 flow [2025-03-04 15:23:40,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:23:40,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:23:40,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 167 transitions. [2025-03-04 15:23:40,095 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6472868217054264 [2025-03-04 15:23:40,096 INFO L175 Difference]: Start difference. First operand has 73 places, 85 transitions, 177 flow. Second operand 3 states and 167 transitions. [2025-03-04 15:23:40,096 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 80 transitions, 253 flow [2025-03-04 15:23:40,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 80 transitions, 253 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:23:40,104 INFO L231 Difference]: Finished difference. Result has 76 places, 76 transitions, 173 flow [2025-03-04 15:23:40,106 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=76, PETRI_TRANSITIONS=76} [2025-03-04 15:23:40,110 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 3 predicate places. [2025-03-04 15:23:40,110 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 76 transitions, 173 flow [2025-03-04 15:23:40,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:40,110 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:40,110 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-03-04 15:23:40,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:40,311 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 [2025-03-04 15:23:40,312 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:40,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:40,312 INFO L85 PathProgramCache]: Analyzing trace with hash 23244086, now seen corresponding path program 1 times [2025-03-04 15:23:40,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:40,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379751542] [2025-03-04 15:23:40,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:40,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:40,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 15:23:40,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 15:23:40,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:40,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:40,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:40,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379751542] [2025-03-04 15:23:40,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379751542] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:40,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:40,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:40,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301495210] [2025-03-04 15:23:40,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:40,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 15:23:40,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:40,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 15:23:40,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 15:23:40,498 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 86 [2025-03-04 15:23:40,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 76 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:40,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:40,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 86 [2025-03-04 15:23:40,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:40,692 INFO L124 PetriNetUnfolderBase]: 121/416 cut-off events. [2025-03-04 15:23:40,692 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-03-04 15:23:40,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 416 events. 121/416 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1946 event pairs, 100 based on Foata normal form. 4/337 useless extension candidates. Maximal degree in co-relation 655. Up to 258 conditions per place. [2025-03-04 15:23:40,694 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 39 selfloop transitions, 2 changer transitions 0/78 dead transitions. [2025-03-04 15:23:40,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 78 transitions, 259 flow [2025-03-04 15:23:40,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 15:23:40,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 15:23:40,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 154 transitions. [2025-03-04 15:23:40,696 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5968992248062015 [2025-03-04 15:23:40,696 INFO L175 Difference]: Start difference. First operand has 76 places, 76 transitions, 173 flow. Second operand 3 states and 154 transitions. [2025-03-04 15:23:40,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 78 transitions, 259 flow [2025-03-04 15:23:40,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 78 transitions, 257 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:23:40,697 INFO L231 Difference]: Finished difference. Result has 78 places, 77 transitions, 187 flow [2025-03-04 15:23:40,697 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=187, PETRI_PLACES=78, PETRI_TRANSITIONS=77} [2025-03-04 15:23:40,698 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 5 predicate places. [2025-03-04 15:23:40,698 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 77 transitions, 187 flow [2025-03-04 15:23:40,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:40,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:40,699 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-03-04 15:23:40,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 15:23:40,699 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:40,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:40,700 INFO L85 PathProgramCache]: Analyzing trace with hash 862750933, now seen corresponding path program 1 times [2025-03-04 15:23:40,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:40,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99841731] [2025-03-04 15:23:40,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:40,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:40,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:23:40,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:23:40,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:40,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:40,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:40,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:40,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99841731] [2025-03-04 15:23:40,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99841731] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:40,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:40,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:40,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042697072] [2025-03-04 15:23:40,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:40,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:40,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:40,865 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:40,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:40,878 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 86 [2025-03-04 15:23:40,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 77 transitions, 187 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:40,879 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:40,879 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 86 [2025-03-04 15:23:40,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:41,129 INFO L124 PetriNetUnfolderBase]: 121/412 cut-off events. [2025-03-04 15:23:41,129 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-03-04 15:23:41,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 704 conditions, 412 events. 121/412 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1924 event pairs, 100 based on Foata normal form. 4/337 useless extension candidates. Maximal degree in co-relation 642. Up to 262 conditions per place. [2025-03-04 15:23:41,134 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 40 selfloop transitions, 3 changer transitions 0/78 dead transitions. [2025-03-04 15:23:41,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 78 transitions, 275 flow [2025-03-04 15:23:41,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:41,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2025-03-04 15:23:41,136 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5348837209302325 [2025-03-04 15:23:41,136 INFO L175 Difference]: Start difference. First operand has 78 places, 77 transitions, 187 flow. Second operand 4 states and 184 transitions. [2025-03-04 15:23:41,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 78 transitions, 275 flow [2025-03-04 15:23:41,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 78 transitions, 273 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-04 15:23:41,138 INFO L231 Difference]: Finished difference. Result has 82 places, 78 transitions, 203 flow [2025-03-04 15:23:41,138 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=203, PETRI_PLACES=82, PETRI_TRANSITIONS=78} [2025-03-04 15:23:41,139 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 9 predicate places. [2025-03-04 15:23:41,139 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 78 transitions, 203 flow [2025-03-04 15:23:41,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:41,139 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:41,139 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:41,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:23:41,139 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:41,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:41,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1129416896, now seen corresponding path program 1 times [2025-03-04 15:23:41,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:41,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796341666] [2025-03-04 15:23:41,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:41,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:41,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:23:41,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:23:41,178 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:41,178 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:41,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:41,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:41,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796341666] [2025-03-04 15:23:41,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796341666] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:41,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067772774] [2025-03-04 15:23:41,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:41,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:41,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:41,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 15:23:41,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 15:23:41,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:23:41,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:23:41,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:41,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:41,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-04 15:23:41,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:41,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:41,463 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:41,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:41,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067772774] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:41,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:41,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-03-04 15:23:41,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619929975] [2025-03-04 15:23:41,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:41,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-04 15:23:41,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:41,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-04 15:23:41,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-03-04 15:23:41,530 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2025-03-04 15:23:41,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 78 transitions, 203 flow. Second operand has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:41,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:41,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2025-03-04 15:23:41,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:41,988 INFO L124 PetriNetUnfolderBase]: 121/428 cut-off events. [2025-03-04 15:23:41,989 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2025-03-04 15:23:41,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 762 conditions, 428 events. 121/428 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2023 event pairs, 100 based on Foata normal form. 6/355 useless extension candidates. Maximal degree in co-relation 661. Up to 252 conditions per place. [2025-03-04 15:23:41,991 INFO L140 encePairwiseOnDemand]: 79/86 looper letters, 43 selfloop transitions, 9 changer transitions 0/86 dead transitions. [2025-03-04 15:23:41,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 86 transitions, 337 flow [2025-03-04 15:23:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-04 15:23:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-03-04 15:23:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 360 transitions. [2025-03-04 15:23:41,996 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46511627906976744 [2025-03-04 15:23:41,996 INFO L175 Difference]: Start difference. First operand has 82 places, 78 transitions, 203 flow. Second operand 9 states and 360 transitions. [2025-03-04 15:23:41,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 86 transitions, 337 flow [2025-03-04 15:23:41,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 86 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:41,999 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 253 flow [2025-03-04 15:23:42,000 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=253, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2025-03-04 15:23:42,001 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 19 predicate places. [2025-03-04 15:23:42,002 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 253 flow [2025-03-04 15:23:42,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:42,002 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:42,002 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:42,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 15:23:42,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-04 15:23:42,203 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:42,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:42,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1257068065, now seen corresponding path program 1 times [2025-03-04 15:23:42,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:42,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144901486] [2025-03-04 15:23:42,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:42,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:42,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:23:42,246 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:23:42,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:42,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:42,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:42,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144901486] [2025-03-04 15:23:42,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144901486] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:42,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982082601] [2025-03-04 15:23:42,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:42,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:42,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:42,414 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) [2025-03-04 15:23:42,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 15:23:42,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-04 15:23:42,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-04 15:23:42,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:42,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:42,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:23:42,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:42,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:42,603 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:42,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982082601] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:42,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:23:42,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-04 15:23:42,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771582810] [2025-03-04 15:23:42,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:42,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:23:42,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:42,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:23:42,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 15:23:42,636 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 86 [2025-03-04 15:23:42,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:42,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:42,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 86 [2025-03-04 15:23:42,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:42,887 INFO L124 PetriNetUnfolderBase]: 121/424 cut-off events. [2025-03-04 15:23:42,887 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2025-03-04 15:23:42,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 779 conditions, 424 events. 121/424 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1977 event pairs, 100 based on Foata normal form. 4/349 useless extension candidates. Maximal degree in co-relation 678. Up to 250 conditions per place. [2025-03-04 15:23:42,894 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 36 selfloop transitions, 8 changer transitions 0/80 dead transitions. [2025-03-04 15:23:42,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 80 transitions, 327 flow [2025-03-04 15:23:42,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:23:42,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:23:42,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 252 transitions. [2025-03-04 15:23:42,897 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4883720930232558 [2025-03-04 15:23:42,897 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 253 flow. Second operand 6 states and 252 transitions. [2025-03-04 15:23:42,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 80 transitions, 327 flow [2025-03-04 15:23:42,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 80 transitions, 319 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:42,900 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 247 flow [2025-03-04 15:23:42,900 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=247, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2025-03-04 15:23:42,901 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 19 predicate places. [2025-03-04 15:23:42,901 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 247 flow [2025-03-04 15:23:42,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:42,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:42,901 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2025-03-04 15:23:42,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:43,102 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 [2025-03-04 15:23:43,102 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:43,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:43,103 INFO L85 PathProgramCache]: Analyzing trace with hash -653638100, now seen corresponding path program 1 times [2025-03-04 15:23:43,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:43,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441736854] [2025-03-04 15:23:43,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:43,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:43,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-04 15:23:43,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-04 15:23:43,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:43,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:43,260 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-03-04 15:23:43,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:43,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441736854] [2025-03-04 15:23:43,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441736854] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:43,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:43,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:43,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698445960] [2025-03-04 15:23:43,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:43,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:43,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:43,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:43,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:43,274 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 86 [2025-03-04 15:23:43,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:43,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:43,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 86 [2025-03-04 15:23:43,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:43,536 INFO L124 PetriNetUnfolderBase]: 121/422 cut-off events. [2025-03-04 15:23:43,537 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2025-03-04 15:23:43,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 422 events. 121/422 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1973 event pairs, 100 based on Foata normal form. 2/345 useless extension candidates. Maximal degree in co-relation 684. Up to 256 conditions per place. [2025-03-04 15:23:43,539 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 35 selfloop transitions, 9 changer transitions 0/80 dead transitions. [2025-03-04 15:23:43,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 80 transitions, 333 flow [2025-03-04 15:23:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:43,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:43,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 183 transitions. [2025-03-04 15:23:43,541 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5319767441860465 [2025-03-04 15:23:43,541 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 247 flow. Second operand 4 states and 183 transitions. [2025-03-04 15:23:43,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 80 transitions, 333 flow [2025-03-04 15:23:43,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 80 transitions, 317 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-03-04 15:23:43,543 INFO L231 Difference]: Finished difference. Result has 89 places, 80 transitions, 255 flow [2025-03-04 15:23:43,543 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=255, PETRI_PLACES=89, PETRI_TRANSITIONS=80} [2025-03-04 15:23:43,544 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 16 predicate places. [2025-03-04 15:23:43,544 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 80 transitions, 255 flow [2025-03-04 15:23:43,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:43,544 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:43,544 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-03-04 15:23:43,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:23:43,544 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:43,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:43,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1080964480, now seen corresponding path program 2 times [2025-03-04 15:23:43,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:43,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358952591] [2025-03-04 15:23:43,545 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:43,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:43,596 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-03-04 15:23:43,601 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 19 statements. [2025-03-04 15:23:43,601 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-04 15:23:43,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:43,646 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 15:23:43,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:43,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358952591] [2025-03-04 15:23:43,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358952591] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:43,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:43,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:23:43,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71797534] [2025-03-04 15:23:43,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:43,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:43,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:43,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:43,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:43,658 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 86 [2025-03-04 15:23:43,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 80 transitions, 255 flow. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:43,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:43,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 86 [2025-03-04 15:23:43,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:43,942 INFO L124 PetriNetUnfolderBase]: 121/420 cut-off events. [2025-03-04 15:23:43,942 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2025-03-04 15:23:43,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 420 events. 121/420 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1968 event pairs, 100 based on Foata normal form. 2/345 useless extension candidates. Maximal degree in co-relation 666. Up to 261 conditions per place. [2025-03-04 15:23:43,944 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 50 selfloop transitions, 3 changer transitions 0/88 dead transitions. [2025-03-04 15:23:43,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 88 transitions, 433 flow [2025-03-04 15:23:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:43,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:43,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 187 transitions. [2025-03-04 15:23:43,945 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5436046511627907 [2025-03-04 15:23:43,945 INFO L175 Difference]: Start difference. First operand has 89 places, 80 transitions, 255 flow. Second operand 4 states and 187 transitions. [2025-03-04 15:23:43,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 88 transitions, 433 flow [2025-03-04 15:23:43,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 88 transitions, 409 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:43,947 INFO L231 Difference]: Finished difference. Result has 92 places, 81 transitions, 266 flow [2025-03-04 15:23:43,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=92, PETRI_TRANSITIONS=81} [2025-03-04 15:23:43,948 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 19 predicate places. [2025-03-04 15:23:43,948 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 81 transitions, 266 flow [2025-03-04 15:23:43,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:43,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:43,948 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:43,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 15:23:43,948 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:43,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:43,949 INFO L85 PathProgramCache]: Analyzing trace with hash 123601556, now seen corresponding path program 1 times [2025-03-04 15:23:43,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:43,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260036673] [2025-03-04 15:23:43,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:43,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:44,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 15:23:44,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 15:23:44,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:44,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:44,138 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-04 15:23:44,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:44,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260036673] [2025-03-04 15:23:44,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260036673] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:44,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551422464] [2025-03-04 15:23:44,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:44,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:44,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:44,141 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) [2025-03-04 15:23:44,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-04 15:23:44,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-03-04 15:23:44,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-03-04 15:23:44,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:44,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:44,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 15:23:44,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:44,397 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:44,483 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:44,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551422464] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:44,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:44,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2025-03-04 15:23:44,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986516785] [2025-03-04 15:23:44,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:44,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-04 15:23:44,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:44,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-04 15:23:44,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2025-03-04 15:23:44,593 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 86 [2025-03-04 15:23:44,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 81 transitions, 266 flow. Second operand has 19 states, 19 states have (on average 33.8421052631579) internal successors, (643), 19 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:44,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:44,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 86 [2025-03-04 15:23:44,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:45,866 INFO L124 PetriNetUnfolderBase]: 126/522 cut-off events. [2025-03-04 15:23:45,867 INFO L125 PetriNetUnfolderBase]: For 380/380 co-relation queries the response was YES. [2025-03-04 15:23:45,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1150 conditions, 522 events. 126/522 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2120 event pairs, 100 based on Foata normal form. 13/458 useless extension candidates. Maximal degree in co-relation 997. Up to 251 conditions per place. [2025-03-04 15:23:45,869 INFO L140 encePairwiseOnDemand]: 77/86 looper letters, 79 selfloop transitions, 55 changer transitions 0/166 dead transitions. [2025-03-04 15:23:45,869 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 166 transitions, 1137 flow [2025-03-04 15:23:45,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-03-04 15:23:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2025-03-04 15:23:45,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 1555 transitions. [2025-03-04 15:23:45,874 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41094080338266387 [2025-03-04 15:23:45,874 INFO L175 Difference]: Start difference. First operand has 92 places, 81 transitions, 266 flow. Second operand 44 states and 1555 transitions. [2025-03-04 15:23:45,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 166 transitions, 1137 flow [2025-03-04 15:23:45,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 166 transitions, 1133 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 15:23:45,877 INFO L231 Difference]: Finished difference. Result has 146 places, 129 transitions, 821 flow [2025-03-04 15:23:45,877 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=821, PETRI_PLACES=146, PETRI_TRANSITIONS=129} [2025-03-04 15:23:45,878 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 73 predicate places. [2025-03-04 15:23:45,878 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 129 transitions, 821 flow [2025-03-04 15:23:45,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 33.8421052631579) internal successors, (643), 19 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:45,878 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:45,878 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:45,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:46,079 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 [2025-03-04 15:23:46,079 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:46,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:46,080 INFO L85 PathProgramCache]: Analyzing trace with hash 576192139, now seen corresponding path program 1 times [2025-03-04 15:23:46,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:46,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091852810] [2025-03-04 15:23:46,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:46,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:46,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 15:23:46,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 15:23:46,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:46,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:46,662 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:46,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:46,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091852810] [2025-03-04 15:23:46,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091852810] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:46,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078811570] [2025-03-04 15:23:46,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:46,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:46,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:46,665 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) [2025-03-04 15:23:46,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-04 15:23:46,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-04 15:23:46,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-04 15:23:46,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:46,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:46,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-04 15:23:46,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:47,038 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:47,038 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:47,243 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:47,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078811570] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:47,243 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:47,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-03-04 15:23:47,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601304310] [2025-03-04 15:23:47,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:47,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-03-04 15:23:47,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:47,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-03-04 15:23:47,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-03-04 15:23:47,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2025-03-04 15:23:47,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 129 transitions, 821 flow. Second operand has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:47,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:47,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2025-03-04 15:23:47,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:48,856 INFO L124 PetriNetUnfolderBase]: 122/674 cut-off events. [2025-03-04 15:23:48,856 INFO L125 PetriNetUnfolderBase]: For 2683/2683 co-relation queries the response was YES. [2025-03-04 15:23:48,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2041 conditions, 674 events. 122/674 cut-off events. For 2683/2683 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2205 event pairs, 100 based on Foata normal form. 24/621 useless extension candidates. Maximal degree in co-relation 1667. Up to 255 conditions per place. [2025-03-04 15:23:48,861 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 112 selfloop transitions, 93 changer transitions 0/239 dead transitions. [2025-03-04 15:23:48,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 239 transitions, 2463 flow [2025-03-04 15:23:48,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-03-04 15:23:48,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-03-04 15:23:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1170 transitions. [2025-03-04 15:23:48,865 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43885971492873216 [2025-03-04 15:23:48,866 INFO L175 Difference]: Start difference. First operand has 146 places, 129 transitions, 821 flow. Second operand 31 states and 1170 transitions. [2025-03-04 15:23:48,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 239 transitions, 2463 flow [2025-03-04 15:23:48,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 239 transitions, 2355 flow, removed 43 selfloop flow, removed 5 redundant places. [2025-03-04 15:23:48,895 INFO L231 Difference]: Finished difference. Result has 180 places, 180 transitions, 1558 flow [2025-03-04 15:23:48,895 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1558, PETRI_PLACES=180, PETRI_TRANSITIONS=180} [2025-03-04 15:23:48,896 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 107 predicate places. [2025-03-04 15:23:48,897 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 180 transitions, 1558 flow [2025-03-04 15:23:48,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:48,898 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:48,898 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:48,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:49,099 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 [2025-03-04 15:23:49,099 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:49,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:49,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1319909259, now seen corresponding path program 2 times [2025-03-04 15:23:49,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:49,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784280479] [2025-03-04 15:23:49,100 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:49,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:49,214 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-03-04 15:23:49,272 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:23:49,274 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:23:49,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:50,628 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:50,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:50,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784280479] [2025-03-04 15:23:50,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784280479] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:50,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660515362] [2025-03-04 15:23:50,629 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-04 15:23:50,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:50,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:50,631 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) [2025-03-04 15:23:50,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-04 15:23:50,945 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-03-04 15:23:51,156 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-03-04 15:23:51,156 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-04 15:23:51,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:51,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-03-04 15:23:51,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:51,263 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:51,263 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:51,973 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-04 15:23:51,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660515362] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:51,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:51,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2025-03-04 15:23:51,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499862939] [2025-03-04 15:23:51,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:51,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-03-04 15:23:51,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:51,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-03-04 15:23:51,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2025-03-04 15:23:52,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 86 [2025-03-04 15:23:52,163 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 180 transitions, 1558 flow. Second operand has 63 states, 63 states have (on average 35.61904761904762) internal successors, (2244), 63 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:52,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:52,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 86 [2025-03-04 15:23:52,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:55,637 INFO L124 PetriNetUnfolderBase]: 122/959 cut-off events. [2025-03-04 15:23:55,638 INFO L125 PetriNetUnfolderBase]: For 9666/9666 co-relation queries the response was YES. [2025-03-04 15:23:55,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3685 conditions, 959 events. 122/959 cut-off events. For 9666/9666 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2326 event pairs, 100 based on Foata normal form. 45/927 useless extension candidates. Maximal degree in co-relation 3042. Up to 255 conditions per place. [2025-03-04 15:23:55,643 INFO L140 encePairwiseOnDemand]: 81/86 looper letters, 202 selfloop transitions, 183 changer transitions 0/419 dead transitions. [2025-03-04 15:23:55,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 419 transitions, 5402 flow [2025-03-04 15:23:55,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-03-04 15:23:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-03-04 15:23:55,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 2272 transitions. [2025-03-04 15:23:55,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43309187952725886 [2025-03-04 15:23:55,649 INFO L175 Difference]: Start difference. First operand has 180 places, 180 transitions, 1558 flow. Second operand 61 states and 2272 transitions. [2025-03-04 15:23:55,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 419 transitions, 5402 flow [2025-03-04 15:23:55,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 419 transitions, 5330 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-03-04 15:23:55,679 INFO L231 Difference]: Finished difference. Result has 244 places, 273 transitions, 3228 flow [2025-03-04 15:23:55,681 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=1486, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3228, PETRI_PLACES=244, PETRI_TRANSITIONS=273} [2025-03-04 15:23:55,681 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 171 predicate places. [2025-03-04 15:23:55,682 INFO L471 AbstractCegarLoop]: Abstraction has has 244 places, 273 transitions, 3228 flow [2025-03-04 15:23:55,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 35.61904761904762) internal successors, (2244), 63 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:23:55,683 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:55,683 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-03-04 15:23:55,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:55,883 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 [2025-03-04 15:23:55,884 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:23:55,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:55,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1677645397, now seen corresponding path program 3 times [2025-03-04 15:23:55,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:55,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915351095] [2025-03-04 15:23:55,885 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:23:55,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:56,125 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes. [2025-03-04 15:24:48,254 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) and asserted 163 of 163 statements. [2025-03-04 15:24:48,254 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2025-03-04 15:24:48,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-04 15:24:48,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235122693] [2025-03-04 15:24:48,274 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-04 15:24:48,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:24:48,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:24:48,277 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 15:24:48,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-04 15:24:48,773 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes. [2025-03-04 15:24:48,811 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 13 of 163 statements. [2025-03-04 15:24:48,811 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-04 15:24:48,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:48,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-04 15:24:48,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:24:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2025-03-04 15:24:48,975 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:24:48,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:48,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915351095] [2025-03-04 15:24:48,975 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-04 15:24:48,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235122693] [2025-03-04 15:24:48,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235122693] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:48,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:48,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 15:24:48,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265110551] [2025-03-04 15:24:48,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:48,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-04 15:24:48,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:48,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-04 15:24:48,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-03-04 15:24:49,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 86 [2025-03-04 15:24:49,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 273 transitions, 3228 flow. Second operand has 9 states, 9 states have (on average 33.44444444444444) internal successors, (301), 9 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:49,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:49,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 86 [2025-03-04 15:24:49,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:49,808 INFO L124 PetriNetUnfolderBase]: 122/899 cut-off events. [2025-03-04 15:24:49,808 INFO L125 PetriNetUnfolderBase]: For 7457/7457 co-relation queries the response was YES. [2025-03-04 15:24:49,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3758 conditions, 899 events. 122/899 cut-off events. For 7457/7457 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2104 event pairs, 100 based on Foata normal form. 60/882 useless extension candidates. Maximal degree in co-relation 3099. Up to 245 conditions per place. [2025-03-04 15:24:49,813 INFO L140 encePairwiseOnDemand]: 76/86 looper letters, 105 selfloop transitions, 137 changer transitions 0/274 dead transitions. [2025-03-04 15:24:49,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 274 transitions, 3726 flow [2025-03-04 15:24:49,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-04 15:24:49,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-04 15:24:49,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 402 transitions. [2025-03-04 15:24:49,814 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4249471458773784 [2025-03-04 15:24:49,814 INFO L175 Difference]: Start difference. First operand has 244 places, 273 transitions, 3228 flow. Second operand 11 states and 402 transitions. [2025-03-04 15:24:49,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 274 transitions, 3726 flow [2025-03-04 15:24:49,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 274 transitions, 3528 flow, removed 15 selfloop flow, removed 28 redundant places. [2025-03-04 15:24:49,854 INFO L231 Difference]: Finished difference. Result has 225 places, 273 transitions, 3387 flow [2025-03-04 15:24:49,854 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=86, PETRI_DIFFERENCE_MINUEND_FLOW=3020, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3387, PETRI_PLACES=225, PETRI_TRANSITIONS=273} [2025-03-04 15:24:49,854 INFO L279 CegarLoopForPetriNet]: 73 programPoint places, 152 predicate places. [2025-03-04 15:24:49,855 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 273 transitions, 3387 flow [2025-03-04 15:24:49,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.44444444444444) internal successors, (301), 9 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 15:24:49,855 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:49,855 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-03-04 15:24:49,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-04 15:24:50,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:24:50,056 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-03-04 15:24:50,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:50,057 INFO L85 PathProgramCache]: Analyzing trace with hash 467400433, now seen corresponding path program 1 times [2025-03-04 15:24:50,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:50,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065357026] [2025-03-04 15:24:50,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:50,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:50,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes.