./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 14:07:30,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 14:07:31,024 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 14:07:31,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 14:07:31,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 14:07:31,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 14:07:31,047 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 14:07:31,047 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 14:07:31,048 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 14:07:31,048 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 14:07:31,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 14:07:31,048 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 14:07:31,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 14:07:31,049 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 14:07:31,049 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 14:07:31,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 14:07:31,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 14:07:31,049 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 14:07:31,049 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 14:07:31,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 14:07:31,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 14:07:31,050 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 14:07:31,050 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 14:07:31,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 14:07:31,050 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 14:07:31,050 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 14:07:31,050 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 14:07:31,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 14:07:31,050 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 14:07:31,051 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 14:07:31,051 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 14:07:31,051 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 14:07:31,051 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 14:07:31,051 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 14:07:31,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:31,051 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 14:07:31,051 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 14:07:31,051 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 14:07:31,052 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 14:07:31,052 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 14:07:31,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 14:07:31,052 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 14:07:31,052 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 14:07:31,052 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 14:07:31,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 14:07:31,052 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-jdk21/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 -> 6883737711af32a6a824eca7af237353e2fdaf7712a6b3c22083c0d47b565ee7 [2025-02-08 14:07:31,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 14:07:31,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 14:07:31,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 14:07:31,291 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 14:07:31,292 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 14:07:31,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-02-08 14:07:32,438 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b9f30c45/f25a713652ad4a668149c05af3a96268/FLAG19ed96cd3 [2025-02-08 14:07:32,724 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 14:07:32,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-02-08 14:07:32,734 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b9f30c45/f25a713652ad4a668149c05af3a96268/FLAG19ed96cd3 [2025-02-08 14:07:33,009 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1b9f30c45/f25a713652ad4a668149c05af3a96268 [2025-02-08 14:07:33,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 14:07:33,012 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 14:07:33,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:33,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 14:07:33,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 14:07:33,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12ca7fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33, skipping insertion in model container [2025-02-08 14:07:33,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 14:07:33,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:33,291 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 14:07:33,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 14:07:33,354 INFO L204 MainTranslator]: Completed translation [2025-02-08 14:07:33,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33 WrapperNode [2025-02-08 14:07:33,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 14:07:33,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:33,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 14:07:33,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 14:07:33,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,386 INFO L138 Inliner]: procedures = 165, calls = 47, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 196 [2025-02-08 14:07:33,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 14:07:33,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 14:07:33,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 14:07:33,387 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 14:07:33,393 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,393 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,395 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,412 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2025-02-08 14:07:33,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,419 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,420 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,421 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,423 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 14:07:33,425 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 14:07:33,425 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 14:07:33,425 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 14:07:33,426 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (1/1) ... [2025-02-08 14:07:33,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 14:07:33,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 14:07:33,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 14:07:33,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 14:07:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 14:07:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 14:07:33,466 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-02-08 14:07:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-02-08 14:07:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 14:07:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 14:07:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 14:07:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-08 14:07:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 14:07:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 14:07:33,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 14:07:33,468 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 14:07:33,551 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 14:07:33,553 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 14:07:33,746 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: ~i~0 := 3; [2025-02-08 14:07:33,747 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747: havoc main_#t~ret22#1; [2025-02-08 14:07:33,747 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-1: [2025-02-08 14:07:33,747 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-2: SUMMARY for call main_#t~ret22#1 := #PthreadsMutexUnlock(~#C~0.base, ~#C~0.offset); srcloc: null [2025-02-08 14:07:33,747 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L747-3: [2025-02-08 14:07:33,748 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739: havoc main_#t~ret16#1; [2025-02-08 14:07:33,748 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-1: ~h~0 := main_#t~ret16#1; [2025-02-08 14:07:33,748 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-2: assume { :end_inline_plus } true;assume -2147483648 <= main_#t~ret16#1 && main_#t~ret16#1 <= 2147483647; [2025-02-08 14:07:33,748 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-3: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-4: havoc plus_#t~short23#1, plus_#t~short24#1, plus_~a#1, plus_~b#1; [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L739-5: main_#t~ret16#1 := plus_#res#1; [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L740: havoc main_#t~ret17#1; [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L740-1: [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L740-2: SUMMARY for call main_#t~ret17#1 := #PthreadsMutexUnlock(~#A~0.base, ~#A~0.offset); srcloc: null [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L740-3: [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L732: havoc main_~id~0#1; [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741: havoc main_#t~ret18#1; [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-1: [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-2: SUMMARY for call main_#t~ret18#1 := #PthreadsMutexLock(~#A~0.base, ~#A~0.offset); srcloc: null [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L741-3: [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L742: ~h~0 := main_~x~1#1; [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743: havoc main_#t~ret19#1; [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-1: [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-2: SUMMARY for call main_#t~ret19#1 := #PthreadsMutexUnlock(~#A~0.base, ~#A~0.offset); srcloc: null [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L743-3: [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744: havoc main_#t~ret20#1; [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744-1: [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744-2: SUMMARY for call main_#t~ret20#1 := #PthreadsMutexUnlock(~#B~0.base, ~#B~0.offset); srcloc: null [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L744-3: [2025-02-08 14:07:33,749 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745: havoc main_#t~ret21#1; [2025-02-08 14:07:33,750 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-1: [2025-02-08 14:07:33,750 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-2: SUMMARY for call main_#t~ret21#1 := #PthreadsMutexLock(~#C~0.base, ~#C~0.offset); srcloc: null [2025-02-08 14:07:33,750 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L745-3: [2025-02-08 14:07:33,854 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19: assume { :end_inline_reach_error } true;assume false; [2025-02-08 14:07:33,854 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-1: havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 14:07:33,854 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-2: assume 0 == __VERIFIER_assert_~cond#1; [2025-02-08 14:07:33,854 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-2: assume !(0 == __VERIFIER_assert_~cond#1); [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-3: assume { :begin_inline_reach_error } true;havoc reach_error_#t~nondet0#1.base, reach_error_#t~nondet0#1.offset; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-4: __VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722: havoc #t~ret8#1; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722-1: ~i~0 := #t~ret8#1; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722-2: assume { :end_inline_plus } true;assume -2147483648 <= #t~ret8#1 && #t~ret8#1 <= 2147483647; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722-3: havoc plus_#in~a#1, plus_#in~b#1; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722-4: havoc plus_#t~short23#1, plus_#t~short24#1, plus_~a#1, plus_~b#1; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L722-5: #t~ret8#1 := plus_#res#1; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L723: ~z~0#1 := ~i~0; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L724: havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L724-1: havoc __VERIFIER_assert_~cond#1; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L724-2: havoc __VERIFIER_assert_~cond#1; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L724-3: assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if ~z~0#1 >= ~x~0#1 then 1 else 0); [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725: havoc #t~ret9#1; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-1: [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-2: SUMMARY for call #t~ret9#1 := #PthreadsMutexUnlock(~#A~0.base, ~#A~0.offset); srcloc: null [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L725-3: [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726: havoc #t~ret10#1; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-1: [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-2: SUMMARY for call #t~ret10#1 := #PthreadsMutexUnlock(~#C~0.base, ~#C~0.offset); srcloc: null [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L726-3: [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L18: assume false; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L18: assume !false; [2025-02-08 14:07:33,855 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L18-1: assume false; [2025-02-08 14:07:33,857 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 14:07:33,857 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 14:07:34,002 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 14:07:34,002 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 14:07:34,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:34 BoogieIcfgContainer [2025-02-08 14:07:34,002 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 14:07:34,007 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 14:07:34,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 14:07:34,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 14:07:34,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 02:07:33" (1/3) ... [2025-02-08 14:07:34,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e09f09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:34, skipping insertion in model container [2025-02-08 14:07:34,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 02:07:33" (2/3) ... [2025-02-08 14:07:34,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e09f09c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 02:07:34, skipping insertion in model container [2025-02-08 14:07:34,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:34" (3/3) ... [2025-02-08 14:07:34,013 INFO L128 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2025-02-08 14:07:34,024 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 14:07:34,025 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i that has 2 procedures, 54 locations, 1 initial locations, 0 loop locations, and 12 error locations. [2025-02-08 14:07:34,025 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 14:07:34,071 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 14:07:34,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 57 transitions, 118 flow [2025-02-08 14:07:34,128 INFO L124 PetriNetUnfolderBase]: 4/56 cut-off events. [2025-02-08 14:07:34,129 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:07:34,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 56 events. 4/56 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 112 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2025-02-08 14:07:34,132 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 57 transitions, 118 flow [2025-02-08 14:07:34,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 55 places, 55 transitions, 113 flow [2025-02-08 14:07:34,140 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 14:07:34,153 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;@2ac74c8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 14:07:34,153 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2025-02-08 14:07:34,159 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 14:07:34,159 INFO L124 PetriNetUnfolderBase]: 1/20 cut-off events. [2025-02-08 14:07:34,159 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:07:34,159 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:34,160 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:34,160 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:34,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:34,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1116258683, now seen corresponding path program 1 times [2025-02-08 14:07:34,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:34,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674100639] [2025-02-08 14:07:34,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:34,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:34,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 14:07:34,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 14:07:34,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:34,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:34,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:34,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:34,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674100639] [2025-02-08 14:07:34,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674100639] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:34,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:34,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:34,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080869393] [2025-02-08 14:07:34,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:34,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:07:34,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:34,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:07:34,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:07:34,440 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 57 [2025-02-08 14:07:34,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 55 transitions, 113 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2025-02-08 14:07:34,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:34,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 57 [2025-02-08 14:07:34,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:34,601 INFO L124 PetriNetUnfolderBase]: 139/459 cut-off events. [2025-02-08 14:07:34,604 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 14:07:34,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 734 conditions, 459 events. 139/459 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2585 event pairs, 44 based on Foata normal form. 45/428 useless extension candidates. Maximal degree in co-relation 723. Up to 172 conditions per place. [2025-02-08 14:07:34,609 INFO L140 encePairwiseOnDemand]: 53/57 looper letters, 39 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2025-02-08 14:07:34,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 66 transitions, 215 flow [2025-02-08 14:07:34,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:07:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:07:34,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2025-02-08 14:07:34,621 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7251461988304093 [2025-02-08 14:07:34,622 INFO L175 Difference]: Start difference. First operand has 55 places, 55 transitions, 113 flow. Second operand 3 states and 124 transitions. [2025-02-08 14:07:34,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 66 transitions, 215 flow [2025-02-08 14:07:34,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 66 transitions, 214 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:34,629 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 108 flow [2025-02-08 14:07:34,632 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2025-02-08 14:07:34,636 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -1 predicate places. [2025-02-08 14:07:34,636 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 108 flow [2025-02-08 14:07:34,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2025-02-08 14:07:34,637 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:34,637 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:34,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 14:07:34,637 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:34,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:34,638 INFO L85 PathProgramCache]: Analyzing trace with hash -244280411, now seen corresponding path program 1 times [2025-02-08 14:07:34,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:34,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526780952] [2025-02-08 14:07:34,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:34,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:34,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-08 14:07:34,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-08 14:07:34,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:34,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:34,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:34,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:34,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526780952] [2025-02-08 14:07:34,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526780952] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:34,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:34,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:34,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778119090] [2025-02-08 14:07:34,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:34,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:07:34,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:34,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:07:34,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:07:34,743 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 57 [2025-02-08 14:07:34,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2025-02-08 14:07:34,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:34,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 57 [2025-02-08 14:07:34,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:34,844 INFO L124 PetriNetUnfolderBase]: 123/428 cut-off events. [2025-02-08 14:07:34,844 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-08 14:07:34,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 428 events. 123/428 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2371 event pairs, 42 based on Foata normal form. 0/367 useless extension candidates. Maximal degree in co-relation 674. Up to 141 conditions per place. [2025-02-08 14:07:34,847 INFO L140 encePairwiseOnDemand]: 55/57 looper letters, 38 selfloop transitions, 1 changer transitions 0/65 dead transitions. [2025-02-08 14:07:34,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 65 transitions, 212 flow [2025-02-08 14:07:34,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:07:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:07:34,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2025-02-08 14:07:34,848 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7076023391812866 [2025-02-08 14:07:34,848 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 108 flow. Second operand 3 states and 121 transitions. [2025-02-08 14:07:34,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 65 transitions, 212 flow [2025-02-08 14:07:34,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 65 transitions, 211 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:34,850 INFO L231 Difference]: Finished difference. Result has 54 places, 51 transitions, 107 flow [2025-02-08 14:07:34,850 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=107, PETRI_PLACES=54, PETRI_TRANSITIONS=51} [2025-02-08 14:07:34,851 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -1 predicate places. [2025-02-08 14:07:34,851 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 51 transitions, 107 flow [2025-02-08 14:07:34,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2025-02-08 14:07:34,851 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:34,851 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:34,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 14:07:34,851 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:34,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:34,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1468383699, now seen corresponding path program 1 times [2025-02-08 14:07:34,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:34,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623427845] [2025-02-08 14:07:34,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:34,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:34,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-08 14:07:34,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-08 14:07:34,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:34,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:34,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:34,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:34,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623427845] [2025-02-08 14:07:34,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623427845] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:34,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:34,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:34,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486134112] [2025-02-08 14:07:34,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:34,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:07:34,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:34,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:07:34,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:07:34,926 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 57 [2025-02-08 14:07:34,927 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 51 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2025-02-08 14:07:34,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:34,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 57 [2025-02-08 14:07:34,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:35,023 INFO L124 PetriNetUnfolderBase]: 132/457 cut-off events. [2025-02-08 14:07:35,023 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-08 14:07:35,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 756 conditions, 457 events. 132/457 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2525 event pairs, 86 based on Foata normal form. 0/393 useless extension candidates. Maximal degree in co-relation 745. Up to 209 conditions per place. [2025-02-08 14:07:35,028 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 38 selfloop transitions, 2 changer transitions 0/64 dead transitions. [2025-02-08 14:07:35,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 64 transitions, 213 flow [2025-02-08 14:07:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:07:35,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:07:35,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 125 transitions. [2025-02-08 14:07:35,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7309941520467836 [2025-02-08 14:07:35,031 INFO L175 Difference]: Start difference. First operand has 54 places, 51 transitions, 107 flow. Second operand 3 states and 125 transitions. [2025-02-08 14:07:35,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 64 transitions, 213 flow [2025-02-08 14:07:35,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 64 transitions, 212 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:35,032 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 108 flow [2025-02-08 14:07:35,032 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2025-02-08 14:07:35,033 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 0 predicate places. [2025-02-08 14:07:35,033 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 108 flow [2025-02-08 14:07:35,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2025-02-08 14:07:35,033 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:35,033 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:35,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 14:07:35,033 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:35,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:35,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1954954589, now seen corresponding path program 1 times [2025-02-08 14:07:35,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:35,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211823455] [2025-02-08 14:07:35,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:35,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:35,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:07:35,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:07:35,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:35,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:35,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:35,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:35,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211823455] [2025-02-08 14:07:35,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211823455] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:35,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:35,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:35,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74752144] [2025-02-08 14:07:35,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:35,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:07:35,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:35,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:07:35,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:07:35,116 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 57 [2025-02-08 14:07:35,116 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2025-02-08 14:07:35,116 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:35,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 57 [2025-02-08 14:07:35,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:35,193 INFO L124 PetriNetUnfolderBase]: 113/393 cut-off events. [2025-02-08 14:07:35,194 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2025-02-08 14:07:35,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 393 events. 113/393 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2050 event pairs, 88 based on Foata normal form. 0/344 useless extension candidates. Maximal degree in co-relation 684. Up to 208 conditions per place. [2025-02-08 14:07:35,196 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 31 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2025-02-08 14:07:35,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 53 transitions, 186 flow [2025-02-08 14:07:35,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:07:35,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:07:35,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 118 transitions. [2025-02-08 14:07:35,200 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6900584795321637 [2025-02-08 14:07:35,200 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 108 flow. Second operand 3 states and 118 transitions. [2025-02-08 14:07:35,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 53 transitions, 186 flow [2025-02-08 14:07:35,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 53 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:35,202 INFO L231 Difference]: Finished difference. Result has 51 places, 45 transitions, 98 flow [2025-02-08 14:07:35,202 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=51, PETRI_TRANSITIONS=45} [2025-02-08 14:07:35,202 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -4 predicate places. [2025-02-08 14:07:35,203 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 45 transitions, 98 flow [2025-02-08 14:07:35,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2025-02-08 14:07:35,203 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:35,203 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:35,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 14:07:35,204 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:35,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:35,204 INFO L85 PathProgramCache]: Analyzing trace with hash -622730091, now seen corresponding path program 1 times [2025-02-08 14:07:35,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:35,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525747493] [2025-02-08 14:07:35,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:35,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:35,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:07:35,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:07:35,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:35,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:35,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:35,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:35,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525747493] [2025-02-08 14:07:35,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525747493] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:35,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:35,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:35,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391430971] [2025-02-08 14:07:35,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:35,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:35,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:35,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:35,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:35,304 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 57 [2025-02-08 14:07:35,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 45 transitions, 98 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2025-02-08 14:07:35,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:35,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 57 [2025-02-08 14:07:35,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:35,420 INFO L124 PetriNetUnfolderBase]: 151/430 cut-off events. [2025-02-08 14:07:35,421 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-02-08 14:07:35,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 430 events. 151/430 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2178 event pairs, 38 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 791. Up to 140 conditions per place. [2025-02-08 14:07:35,422 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 51 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2025-02-08 14:07:35,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 70 transitions, 262 flow [2025-02-08 14:07:35,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:35,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:35,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 154 transitions. [2025-02-08 14:07:35,424 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6754385964912281 [2025-02-08 14:07:35,424 INFO L175 Difference]: Start difference. First operand has 51 places, 45 transitions, 98 flow. Second operand 4 states and 154 transitions. [2025-02-08 14:07:35,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 70 transitions, 262 flow [2025-02-08 14:07:35,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 70 transitions, 250 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:35,425 INFO L231 Difference]: Finished difference. Result has 51 places, 44 transitions, 96 flow [2025-02-08 14:07:35,425 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=96, PETRI_PLACES=51, PETRI_TRANSITIONS=44} [2025-02-08 14:07:35,426 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -4 predicate places. [2025-02-08 14:07:35,426 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 44 transitions, 96 flow [2025-02-08 14:07:35,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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) [2025-02-08 14:07:35,426 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:35,426 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:35,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 14:07:35,426 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:35,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:35,428 INFO L85 PathProgramCache]: Analyzing trace with hash -622729513, now seen corresponding path program 1 times [2025-02-08 14:07:35,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:35,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132874834] [2025-02-08 14:07:35,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:35,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:35,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 14:07:35,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 14:07:35,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:35,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:35,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:35,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:35,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132874834] [2025-02-08 14:07:35,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132874834] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:35,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:35,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 14:07:35,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659687483] [2025-02-08 14:07:35,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:35,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:07:35,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:35,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:07:35,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:07:35,550 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2025-02-08 14:07:35,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 44 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2025-02-08 14:07:35,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:35,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2025-02-08 14:07:35,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:35,676 INFO L124 PetriNetUnfolderBase]: 137/374 cut-off events. [2025-02-08 14:07:35,677 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-08 14:07:35,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 374 events. 137/374 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1737 event pairs, 40 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 710. Up to 139 conditions per place. [2025-02-08 14:07:35,678 INFO L140 encePairwiseOnDemand]: 53/57 looper letters, 49 selfloop transitions, 3 changer transitions 0/67 dead transitions. [2025-02-08 14:07:35,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 67 transitions, 246 flow [2025-02-08 14:07:35,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:35,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:35,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 141 transitions. [2025-02-08 14:07:35,680 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.618421052631579 [2025-02-08 14:07:35,680 INFO L175 Difference]: Start difference. First operand has 51 places, 44 transitions, 96 flow. Second operand 4 states and 141 transitions. [2025-02-08 14:07:35,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 67 transitions, 246 flow [2025-02-08 14:07:35,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 67 transitions, 243 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:35,681 INFO L231 Difference]: Finished difference. Result has 49 places, 41 transitions, 93 flow [2025-02-08 14:07:35,681 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2025-02-08 14:07:35,682 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -6 predicate places. [2025-02-08 14:07:35,682 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 93 flow [2025-02-08 14:07:35,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2025-02-08 14:07:35,682 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:35,682 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:35,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 14:07:35,683 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:35,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:35,683 INFO L85 PathProgramCache]: Analyzing trace with hash -2124763237, now seen corresponding path program 1 times [2025-02-08 14:07:35,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:35,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572988630] [2025-02-08 14:07:35,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:35,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:35,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 14:07:35,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 14:07:35,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:35,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:35,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:35,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:35,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572988630] [2025-02-08 14:07:35,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572988630] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:35,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:35,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:35,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809357897] [2025-02-08 14:07:35,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:35,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 14:07:35,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:35,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 14:07:35,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 14:07:35,805 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 57 [2025-02-08 14:07:35,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 93 flow. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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) [2025-02-08 14:07:35,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:35,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 57 [2025-02-08 14:07:35,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:35,877 INFO L124 PetriNetUnfolderBase]: 123/346 cut-off events. [2025-02-08 14:07:35,878 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2025-02-08 14:07:35,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 346 events. 123/346 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1581 event pairs, 41 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 682. Up to 167 conditions per place. [2025-02-08 14:07:35,879 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 32 selfloop transitions, 2 changer transitions 4/53 dead transitions. [2025-02-08 14:07:35,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 53 transitions, 193 flow [2025-02-08 14:07:35,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:35,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:35,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 143 transitions. [2025-02-08 14:07:35,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6271929824561403 [2025-02-08 14:07:35,880 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 93 flow. Second operand 4 states and 143 transitions. [2025-02-08 14:07:35,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 53 transitions, 193 flow [2025-02-08 14:07:35,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 53 transitions, 187 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:35,881 INFO L231 Difference]: Finished difference. Result has 48 places, 38 transitions, 85 flow [2025-02-08 14:07:35,881 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=85, PETRI_PLACES=48, PETRI_TRANSITIONS=38} [2025-02-08 14:07:35,882 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -7 predicate places. [2025-02-08 14:07:35,882 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 38 transitions, 85 flow [2025-02-08 14:07:35,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 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) [2025-02-08 14:07:35,882 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:35,882 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:35,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 14:07:35,882 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:35,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:35,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1810635841, now seen corresponding path program 1 times [2025-02-08 14:07:35,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:35,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128566494] [2025-02-08 14:07:35,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:35,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:35,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 14:07:35,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 14:07:35,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:35,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:35,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:35,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128566494] [2025-02-08 14:07:35,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128566494] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:35,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:35,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 14:07:35,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392814624] [2025-02-08 14:07:35,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:35,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 14:07:35,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:35,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 14:07:35,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 14:07:35,923 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 57 [2025-02-08 14:07:35,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 38 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2025-02-08 14:07:35,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:35,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 57 [2025-02-08 14:07:35,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:36,004 INFO L124 PetriNetUnfolderBase]: 97/300 cut-off events. [2025-02-08 14:07:36,004 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-08 14:07:36,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 300 events. 97/300 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1305 event pairs, 56 based on Foata normal form. 9/278 useless extension candidates. Maximal degree in co-relation 549. Up to 131 conditions per place. [2025-02-08 14:07:36,005 INFO L140 encePairwiseOnDemand]: 55/57 looper letters, 30 selfloop transitions, 1 changer transitions 0/45 dead transitions. [2025-02-08 14:07:36,005 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 45 transitions, 166 flow [2025-02-08 14:07:36,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:07:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:07:36,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2025-02-08 14:07:36,006 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6432748538011696 [2025-02-08 14:07:36,006 INFO L175 Difference]: Start difference. First operand has 48 places, 38 transitions, 85 flow. Second operand 3 states and 110 transitions. [2025-02-08 14:07:36,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 45 transitions, 166 flow [2025-02-08 14:07:36,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 45 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 14:07:36,007 INFO L231 Difference]: Finished difference. Result has 45 places, 37 transitions, 82 flow [2025-02-08 14:07:36,007 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=45, PETRI_TRANSITIONS=37} [2025-02-08 14:07:36,008 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -10 predicate places. [2025-02-08 14:07:36,008 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 37 transitions, 82 flow [2025-02-08 14:07:36,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 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) [2025-02-08 14:07:36,008 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:36,008 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:36,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 14:07:36,008 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:36,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:36,009 INFO L85 PathProgramCache]: Analyzing trace with hash 295136696, now seen corresponding path program 1 times [2025-02-08 14:07:36,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:36,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705711361] [2025-02-08 14:07:36,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:36,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:36,014 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:07:36,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:07:36,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:36,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:36,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:36,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:36,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705711361] [2025-02-08 14:07:36,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705711361] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:36,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:36,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:36,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611255384] [2025-02-08 14:07:36,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:36,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:36,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:36,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:36,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:36,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 57 [2025-02-08 14:07:36,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 37 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2025-02-08 14:07:36,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:36,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 57 [2025-02-08 14:07:36,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:36,135 INFO L124 PetriNetUnfolderBase]: 97/291 cut-off events. [2025-02-08 14:07:36,136 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 14:07:36,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 291 events. 97/291 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1236 event pairs, 56 based on Foata normal form. 0/269 useless extension candidates. Maximal degree in co-relation 549. Up to 131 conditions per place. [2025-02-08 14:07:36,137 INFO L140 encePairwiseOnDemand]: 55/57 looper letters, 30 selfloop transitions, 1 changer transitions 0/44 dead transitions. [2025-02-08 14:07:36,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 44 transitions, 162 flow [2025-02-08 14:07:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 14:07:36,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 14:07:36,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 104 transitions. [2025-02-08 14:07:36,138 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6081871345029239 [2025-02-08 14:07:36,138 INFO L175 Difference]: Start difference. First operand has 45 places, 37 transitions, 82 flow. Second operand 3 states and 104 transitions. [2025-02-08 14:07:36,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 44 transitions, 162 flow [2025-02-08 14:07:36,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 44 transitions, 161 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:36,139 INFO L231 Difference]: Finished difference. Result has 45 places, 36 transitions, 81 flow [2025-02-08 14:07:36,139 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=45, PETRI_TRANSITIONS=36} [2025-02-08 14:07:36,139 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -10 predicate places. [2025-02-08 14:07:36,140 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 36 transitions, 81 flow [2025-02-08 14:07:36,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2025-02-08 14:07:36,140 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:36,140 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:36,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 14:07:36,140 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:36,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:36,140 INFO L85 PathProgramCache]: Analyzing trace with hash 295135703, now seen corresponding path program 1 times [2025-02-08 14:07:36,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:36,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767436877] [2025-02-08 14:07:36,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:36,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:36,149 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 14:07:36,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 14:07:36,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:36,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:36,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:36,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:36,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767436877] [2025-02-08 14:07:36,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767436877] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:36,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:36,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:36,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183186208] [2025-02-08 14:07:36,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:36,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 14:07:36,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:36,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 14:07:36,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 14:07:36,266 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 57 [2025-02-08 14:07:36,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 36 transitions, 81 flow. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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) [2025-02-08 14:07:36,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:36,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 57 [2025-02-08 14:07:36,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:36,378 INFO L124 PetriNetUnfolderBase]: 137/396 cut-off events. [2025-02-08 14:07:36,378 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 14:07:36,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 396 events. 137/396 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1944 event pairs, 49 based on Foata normal form. 9/392 useless extension candidates. Maximal degree in co-relation 773. Up to 122 conditions per place. [2025-02-08 14:07:36,379 INFO L140 encePairwiseOnDemand]: 52/57 looper letters, 53 selfloop transitions, 7 changer transitions 0/72 dead transitions. [2025-02-08 14:07:36,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 72 transitions, 287 flow [2025-02-08 14:07:36,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 14:07:36,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 14:07:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2025-02-08 14:07:36,380 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5939849624060151 [2025-02-08 14:07:36,380 INFO L175 Difference]: Start difference. First operand has 45 places, 36 transitions, 81 flow. Second operand 7 states and 237 transitions. [2025-02-08 14:07:36,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 72 transitions, 287 flow [2025-02-08 14:07:36,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 72 transitions, 284 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 14:07:36,384 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 129 flow [2025-02-08 14:07:36,385 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=129, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2025-02-08 14:07:36,385 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -2 predicate places. [2025-02-08 14:07:36,385 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 129 flow [2025-02-08 14:07:36,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 6 states have internal predecessors, (165), 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) [2025-02-08 14:07:36,385 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:36,385 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:36,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 14:07:36,385 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:36,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:36,386 INFO L85 PathProgramCache]: Analyzing trace with hash 559272676, now seen corresponding path program 1 times [2025-02-08 14:07:36,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:36,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777651374] [2025-02-08 14:07:36,386 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:36,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:36,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 14:07:36,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 14:07:36,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:36,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:36,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:36,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777651374] [2025-02-08 14:07:36,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777651374] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:36,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:36,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 14:07:36,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519196798] [2025-02-08 14:07:36,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:36,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:36,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:36,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:36,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:36,478 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 57 [2025-02-08 14:07:36,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 129 flow. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2025-02-08 14:07:36,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:36,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 57 [2025-02-08 14:07:36,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:36,570 INFO L124 PetriNetUnfolderBase]: 127/393 cut-off events. [2025-02-08 14:07:36,570 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2025-02-08 14:07:36,571 INFO L83 FinitePrefix]: Finished finitePrefix Result has 841 conditions, 393 events. 127/393 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1963 event pairs, 69 based on Foata normal form. 0/388 useless extension candidates. Maximal degree in co-relation 826. Up to 162 conditions per place. [2025-02-08 14:07:36,572 INFO L140 encePairwiseOnDemand]: 53/57 looper letters, 38 selfloop transitions, 5 changer transitions 0/55 dead transitions. [2025-02-08 14:07:36,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 55 transitions, 252 flow [2025-02-08 14:07:36,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:36,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:36,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 136 transitions. [2025-02-08 14:07:36,574 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2025-02-08 14:07:36,574 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 129 flow. Second operand 4 states and 136 transitions. [2025-02-08 14:07:36,574 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 55 transitions, 252 flow [2025-02-08 14:07:36,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 55 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 14:07:36,576 INFO L231 Difference]: Finished difference. Result has 56 places, 40 transitions, 137 flow [2025-02-08 14:07:36,576 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=137, PETRI_PLACES=56, PETRI_TRANSITIONS=40} [2025-02-08 14:07:36,577 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 1 predicate places. [2025-02-08 14:07:36,577 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 40 transitions, 137 flow [2025-02-08 14:07:36,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 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) [2025-02-08 14:07:36,577 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:36,577 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:36,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 14:07:36,577 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:36,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:36,579 INFO L85 PathProgramCache]: Analyzing trace with hash 619781022, now seen corresponding path program 1 times [2025-02-08 14:07:36,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:36,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773750175] [2025-02-08 14:07:36,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:36,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:36,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 14:07:36,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 14:07:36,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:36,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:36,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:36,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:36,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773750175] [2025-02-08 14:07:36,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773750175] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:36,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:36,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 14:07:36,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682748848] [2025-02-08 14:07:36,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:36,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 14:07:36,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:36,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 14:07:36,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 14:07:36,653 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 57 [2025-02-08 14:07:36,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 40 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2025-02-08 14:07:36,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:36,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 57 [2025-02-08 14:07:36,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:36,743 INFO L124 PetriNetUnfolderBase]: 131/383 cut-off events. [2025-02-08 14:07:36,743 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2025-02-08 14:07:36,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 884 conditions, 383 events. 131/383 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1867 event pairs, 86 based on Foata normal form. 14/393 useless extension candidates. Maximal degree in co-relation 868. Up to 214 conditions per place. [2025-02-08 14:07:36,745 INFO L140 encePairwiseOnDemand]: 54/57 looper letters, 30 selfloop transitions, 2 changer transitions 13/55 dead transitions. [2025-02-08 14:07:36,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 55 transitions, 273 flow [2025-02-08 14:07:36,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 14:07:36,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 14:07:36,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2025-02-08 14:07:36,746 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6359649122807017 [2025-02-08 14:07:36,747 INFO L175 Difference]: Start difference. First operand has 56 places, 40 transitions, 137 flow. Second operand 4 states and 145 transitions. [2025-02-08 14:07:36,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 55 transitions, 273 flow [2025-02-08 14:07:36,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 55 transitions, 263 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 14:07:36,750 INFO L231 Difference]: Finished difference. Result has 55 places, 34 transitions, 94 flow [2025-02-08 14:07:36,751 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=94, PETRI_PLACES=55, PETRI_TRANSITIONS=34} [2025-02-08 14:07:36,751 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, 0 predicate places. [2025-02-08 14:07:36,752 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 34 transitions, 94 flow [2025-02-08 14:07:36,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 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) [2025-02-08 14:07:36,752 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 14:07:36,753 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:36,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 14:07:36,753 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 14:07:36,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 14:07:36,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1686890417, now seen corresponding path program 1 times [2025-02-08 14:07:36,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 14:07:36,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893800014] [2025-02-08 14:07:36,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 14:07:36,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 14:07:36,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 14:07:36,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 14:07:36,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 14:07:36,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 14:07:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 14:07:36,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 14:07:36,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893800014] [2025-02-08 14:07:36,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893800014] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 14:07:36,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 14:07:36,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 14:07:36,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333670936] [2025-02-08 14:07:36,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 14:07:36,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 14:07:36,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 14:07:36,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 14:07:36,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 14:07:36,962 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2025-02-08 14:07:36,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 34 transitions, 94 flow. Second operand has 8 states, 8 states have (on average 24.5) internal successors, (196), 8 states have internal predecessors, (196), 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) [2025-02-08 14:07:36,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 14:07:36,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2025-02-08 14:07:36,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 14:07:37,055 INFO L124 PetriNetUnfolderBase]: 60/180 cut-off events. [2025-02-08 14:07:37,055 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2025-02-08 14:07:37,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 180 events. 60/180 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 618 event pairs, 24 based on Foata normal form. 5/183 useless extension candidates. Maximal degree in co-relation 389. Up to 62 conditions per place. [2025-02-08 14:07:37,056 INFO L140 encePairwiseOnDemand]: 53/57 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2025-02-08 14:07:37,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 41 transitions, 168 flow [2025-02-08 14:07:37,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 14:07:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 14:07:37,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 142 transitions. [2025-02-08 14:07:37,058 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4982456140350877 [2025-02-08 14:07:37,058 INFO L175 Difference]: Start difference. First operand has 55 places, 34 transitions, 94 flow. Second operand 5 states and 142 transitions. [2025-02-08 14:07:37,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 41 transitions, 168 flow [2025-02-08 14:07:37,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 41 transitions, 159 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-02-08 14:07:37,059 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2025-02-08 14:07:37,060 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2025-02-08 14:07:37,060 INFO L279 CegarLoopForPetriNet]: 55 programPoint places, -5 predicate places. [2025-02-08 14:07:37,061 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 0 transitions, 0 flow [2025-02-08 14:07:37,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.5) internal successors, (196), 8 states have internal predecessors, (196), 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) [2025-02-08 14:07:37,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 19 remaining) [2025-02-08 14:07:37,063 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2025-02-08 14:07:37,064 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2025-02-08 14:07:37,065 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2025-02-08 14:07:37,065 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2025-02-08 14:07:37,065 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2025-02-08 14:07:37,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 14:07:37,065 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 14:07:37,069 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 14:07:37,069 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 14:07:37,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 02:07:37 BasicIcfg [2025-02-08 14:07:37,074 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 14:07:37,075 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 14:07:37,075 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 14:07:37,075 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 14:07:37,075 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 02:07:34" (3/4) ... [2025-02-08 14:07:37,076 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 14:07:37,078 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure t_fun [2025-02-08 14:07:37,081 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2025-02-08 14:07:37,081 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2025-02-08 14:07:37,081 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-08 14:07:37,082 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 14:07:37,135 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 14:07:37,135 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 14:07:37,135 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 14:07:37,136 INFO L158 Benchmark]: Toolchain (without parser) took 4123.57ms. Allocated memory was 167.8MB in the beginning and 377.5MB in the end (delta: 209.7MB). Free memory was 122.0MB in the beginning and 220.6MB in the end (delta: -98.6MB). Peak memory consumption was 113.9MB. Max. memory is 16.1GB. [2025-02-08 14:07:37,136 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:07:37,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.15ms. Allocated memory is still 167.8MB. Free memory was 121.3MB in the beginning and 101.4MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 14:07:37,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.13ms. Allocated memory is still 167.8MB. Free memory was 101.4MB in the beginning and 99.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:07:37,137 INFO L158 Benchmark]: Boogie Preprocessor took 36.03ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 96.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 14:07:37,137 INFO L158 Benchmark]: IcfgBuilder took 577.69ms. Allocated memory is still 167.8MB. Free memory was 96.8MB in the beginning and 51.0MB in the end (delta: 45.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-08 14:07:37,137 INFO L158 Benchmark]: TraceAbstraction took 3067.33ms. Allocated memory was 167.8MB in the beginning and 377.5MB in the end (delta: 209.7MB). Free memory was 51.0MB in the beginning and 225.7MB in the end (delta: -174.6MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2025-02-08 14:07:37,137 INFO L158 Benchmark]: Witness Printer took 60.57ms. Allocated memory is still 377.5MB. Free memory was 225.7MB in the beginning and 220.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 14:07:37,138 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 116.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.15ms. Allocated memory is still 167.8MB. Free memory was 121.3MB in the beginning and 101.4MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.13ms. Allocated memory is still 167.8MB. Free memory was 101.4MB in the beginning and 99.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.03ms. Allocated memory is still 167.8MB. Free memory was 99.0MB in the beginning and 96.8MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 577.69ms. Allocated memory is still 167.8MB. Free memory was 96.8MB in the beginning and 51.0MB in the end (delta: 45.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 3067.33ms. Allocated memory was 167.8MB in the beginning and 377.5MB in the end (delta: 209.7MB). Free memory was 51.0MB in the beginning and 225.7MB in the end (delta: -174.6MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. * Witness Printer took 60.57ms. Allocated memory is still 377.5MB. Free memory was 225.7MB in the beginning and 220.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 752]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 753]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 754]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 83 locations, 19 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.0s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 710 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 542 mSDsluCounter, 144 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1348 IncrementalHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 43 mSDtfsCounter, 1348 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=11, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 213 NumberOfCodeBlocks, 213 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 14:07:37,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE